Unassociated Document


    
      
        
          
            
              
                
                  
                    
                      
                        
                          

                        
Exhibit 10.19

                      


                      Plains

                      Marketing,
LP.

                      10 Desta
Drive. Suite 200E | Midland, Texas 79705 | Phone: (432) 683-9622 | Fax: (432)
683-0849

                      


                      September
4, 2009

                      


                      Pioneer
Natural Resources USA

                      5205 N.
O'Connor Blvd., Suite 900

                      Irving,
TX 75039

                      Fax/email
(972)969 3574

                      


                      RE: PMLP
Contract 2582-1014

                      


                      Effective
on and after September 1,
2009, please amend the subject contract by deleting the "Price" clause
and Inserting the "Price" clause as follows:

                      


                      
                        	
                                PRICE:

                              	
                                For
      the crude oil sold and delivered hereunder, PMLP agrees to pay a price per
      barrel which shall be calculated as
follows:

                              


                      

                      


                      
                        	
                                 
      

                              	
                                a.

                              	
                                Determine
      arithmetic average of the daily settlement price for the "Light Sweet
      Crude Oil" prompt month contract reported by the New York Mercantile
      Exchange (NYMEX) from the first day of the delivery month through the last
      day of the delivery month, Including weekends and U.S. holidays with the
      previous day's settlement price applying to weekends and U. S.
      holidays.

                              


                      

                      


                      
                        	
                                 
      

                              	
                                b.

                              	
                                To
      the number determined in the foregoing subparagraph (a.), add the
      arithmetic average of the daily settlement price for the crude contract
      reported by the NYMEX from the day the delivery month becomes the prompt
      trading month through the last day of trading for the delivery month,
      market open quotes only, less the average of the daily settlement price
      for the second month NYMEX crude contract trading over the same period,
      times a percentage calculated from the number of days starting with the
      first day of the delivery month and ending with the day preceding the
      first trade day after the NYMEX crude contract expiration date during the
      delivery month, divided by the number of days in the delivery
      month.

                              


                      

                      


                      
                        	
                                 
      

                              	
                                c.

                              	
                                To
      the number determined in subparagraph (a. and b.) above, add the
      arithmetic average of the daily settlement price for the crude contract
      reported by the NYMEX from the day the delivery month becomes the prompt
      trading month through the last day of trading for the delivery month,
      market open quotes only, less the average of the daily settlement price
      for the third month NYMEX crude contract trading over the same period,
      times a percentage calculated from the number of days starting with the
      first trade day after the NYMEX crude contract expiration date during the
      delivery month and ending with the last day of the delivery month, divided
      by the number of days in the delivery
month.

                              


                      

                      


                      
                        	
                                 
      

                              	
                                d.

                              	
                                To
      the number determined in the foregoing subparagraph (c.) add the average
      of the daily high and low quotes for WTI (Midland) and subtract the
      average of the daily high and low quotes for WT1, (Cushing) for the month
      of delivery in Platt's Crude
      Oil Market Wire
      "America's Crude Oil Assessments" based on pricing assessed for the
      days the U. S. crude oil market is open (weekends and U. S. holidays
      excluded) during the period beginning with the 26th day of the month that
      is two (2) months prior to delivery through and including the 25th day of
      the month that is immediately prior to the month of delivery, provided,
      however, that if the first day of the period falls on a day on which the
      U. S. crude oil market is closed, the period shall begin on the first
      trading day thereafter, and if the last day of the period falls on a day
      on which the U. S. crude oil market is closed, the period shall end on the
      last trading day prior thereto. 

                              


                      

                      


                      
                        	
                                 
      

                              	
                                e.

                              	
                                To
      the number determined in the forgoing subparagraph (d.), subtract the net
      of the following: (Sum of the Midland WTS differential minus Midland WTI
      Differential divided by 14). The number determined pursuant to this
      subparagraph (e.) and subparagraphs (a.), (b.), (c.) and (d.) shall be the
      base price per barrel of crude oil.
(X1585)

                              


                      

                      


                      
                        	
                                 
      

                              	
                                f.

                              	
                                To
      the number determined pursuant to subparagraph (a.) through (e.). subtract
      the amount indicated on Exhibit "A", attached
  hereto.

                              


                      


                      
                        
                           


                        

                        
                           


                          
                            

                          

                        

                        
                           


                        

                      


                      Except as
herein amended, all other terms and conditions of said contract shall remain In
full force and effect

                      


                      This
fax/email evidences our understanding of the entire agreement and shall
constitute the formal contract

                      


                      Please
acknowledge by return fax/email your acceptance of and agreement to the terms
stated herein. If no response from the Counterparty is received within five (5)
business days, the contract is considered binding. These terms and conditions
will be deemed accepted if Pioneer Natural Resources USA begins performance of
its obligations hereunder.

                      


                      The
parties agree that faxed/emailed documents shall be deemed to be admissible as
primary evidence in a court of law as original or as counterparts of the
original documents, either of which is to be retained and available for
inspection.

                      


                      Very
truly yours,

                      


                      
                        	
                                PLAINS
      MARKETING, LP.

                              	 
      
	
                                By
      Plains Marketing GP Inc.

                              	 
      
	
                                its
      General Partner

                              	 
      
	 	 
	 	 
	
                                Mike
      A. Weller

                              	 
      
	
                                Senior
      Crude Oil Representative

                              	
                                /s/
      Hershal K. Wolfe

                              
	 
      	
                                Hershal
      K. Wolfe

                              
	 
      	
                                Vice
      President Marketing

                              


                      


                      
                        
                           


                        

                        
                           


                          
                            

                          

                        

                        
                           


                        

                      

                      


                      Exhibit
"A"

                      


                      Sep 04,
2009

                      Page 1 of
31

                      


                      
                        	
                                Plains
      Contract:

                              	 	
                                2582-1014

                              	 	
                                Effective:
      09-01-2009

                              	 	
                                Plains
      Marketing L.P.

                              	 
      


                      

                       

                      
                        
                          	
                                  PM

                                  Lease

                                  ‡=
      inact

                                	 
      	 
      	 
      	
                                  Lease

                                	 
      	
                                  Operator

                                	 
      	
                                  County/Parish

                                	 
      	 
      	 
      	
                                  Price

                                	 
      	
                                  Price
      Method

                                	 
      	
                                  Applicable

                                  Premium

                                  Or

                                  (Deduct)

                                	 
      	
                                  Fuel

                                  Adjust

                                	 
      	
                                  Percent

                                	 
      	
                                  Gravity

                                	 	
                                  State

                                  Lease

                                
	
                                  114778

                                	 
      	 
      	 
      	
                                  HENDERSON
      28F #1

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  CROCKETT

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  013249

                                
	
                                  221175

                                	 
      	 
      	 
      	
                                  BOWLIN

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      DAWSON

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  062136

                                
	
                                  221176‡

                                	 
      	 
      	 
      	
                                  H.J.
      WRIGHT #1

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      DAWSON

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  068784

                                
	
                                  096842

                                	 
      	 
      	 
      	
                                  HARRIS

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      DAWSON

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  060909

                                
	
                                  120759

                                	 
      	 
      	 
      	
                                  WALTON
      4862

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      DAWSON

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  061738

                                
	
                                  053403

                                	 
      	
                                  (75)

                                	 
      	
                                  BOTTS

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  023830

                                
	
                                  142080

                                	 
      	
                                  (75)

                                	 
      	
                                  BOTTS
      2

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  023830

                                
	
                                  553409‡

                                	 
      	 
      	 
      	
                                  BRYANS
      "8"

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  014067

                                
	
                                  551886

                                	 
      	 
      	 
      	
                                  C J
      COX "C"

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  014109

                                
	
                                  096822‡

                                	 
      	 
      	 
      	
                                  CALVERLEY

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  018834

                                
	
                                  062723

                                	 
      	 
      	 
      	
                                  CJ
      COX A #1

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  014741

                                
	
                                  548808

                                	 
      	 
      	 
      	
                                  CLARK
      B

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  031729

                                
	
                                  053048

                                	 
      	 
      	 
      	
                                  CLARK
      -C-

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  023439

                                
	
                                  552600‡

                                	 
      	 
      	 
      	
                                  COUEY

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  014072

                                
	
                                  054538

                                	 
      	 
      	 
      	
                                  COUEY
      -A-

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  023871

                                
	
                                  114479

                                	 
      	 
      	 
      	
                                  COX
      "D"

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  034755

                                
	
                                  014279

                                	 
      	 
      	 
      	
                                  DRIVER-30

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  006277

                                
	
                                  130171

                                	 
      	 
      	 
      	
                                  FLANAGAN
      "14"

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  037829

                                
	
                                  106754

                                	 
      	 
      	 
      	
                                  GLASSCOCK
      FEE

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  009348

                                
	
                                  130127

                                	 
      	 
      	 
      	
                                  HA
      HOUSTON A#3

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  037594

                                
	
                                  139606

                                	 
      	 
      	 
      	
                                  JOST

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  038168

                                
	
                                  553836

                                	 
      	 
      	 
      	
                                  LANE
      44

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  014068

                                
	
                                  003076

                                	 
      	 
      	 
      	
                                  PRIDDY

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  022340

                                
	
                                  553843

                                	 
      	 
      	 
      	
                                  ROGER

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  014083

                                
	
                                  062721

                                	 
      	 
      	 
      	
                                  8 D
      U TRACT 9OA

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  015400

                                
	
                                  553413

                                	 
      	 
      	 
      	
                                  S
      DRIVER UT TR 10A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  015400

                                
	
                                  553005

                                	 
      	 
      	 
      	
                                  S
      DRIVER UT TR 114A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  015400

                                
	
                                  553178

                                	 
      	 
      	 
      	
                                  S
      DRIVER UT TR 118A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  015400

                                
	
                                  553825

                                	 
      	 
      	 
      	
                                  S
      DRIVER UT TR 13A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  015400

                                
	
                                  554194

                                	 
      	 
      	 
      	
                                  S
      DRIVER UT TR 140B

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 	
                                  015400

                                


                        

                      

                       

                      
                        
                           


                        

                        
                           


                          
                            

                          

                        

                        
                           


                        

                      

                       

                      Exhibit
"A"

                      


                      Sep 04,
2009

                      Page 2 of
31

                       

                      
                        
                          	
                                  Plains
      Contract:

                                	 	
                                  2582-1014

                                	 	
                                  Effective:
      09-01-2009

                                	 	
                                  Plains
      Marketing L.P.

                                	 
      


                        

                         

                      

                      
                        
                          	
                                  PM

                                  Lease

                                  ‡=
      inact

                                	 
      	 
      	 
      	
                                  Lease

                                	 
      	
                                  Operator

                                	 
      	
                                  County/Parish

                                	 
      	 
      	 
      	
                                  Price

                                	 
      	
                                  Price
      Method

                                	 
      	
                                  Applicable

                                  Premium

                                  Or

                                  (Deduct)

                                	 
      	
                                  Fuel

                                  Adjust

                                	 
      	
                                  Percent

                                	 
      	
                                  Gravity

                                	 
      	
                                  State

                                  Lease

                                
	
                                  553010

                                	 
      	 
      	 
      	
                                  8
      DRIVER UT TR 146A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  552859

                                	 
      	 
      	 
      	
                                  8
      DRIVER UT TR 147A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  553087

                                	 
      	 
      	 
      	
                                  8
      DRIVER UT TR 149A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  562976

                                	 
      	 
      	 
      	
                                  8
      DRIVER UT TR 24A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  552714

                                	 
      	 
      	 
      	
                                  S
      DRIVER UT TR 25A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  553389

                                	 
      	 
      	 
      	
                                  8
      DRIVER UT TR 26A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  554987

                                	 
      	 
      	 
      	
                                  8
      DRIVER UT TR 33A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  554256‡

                                	 
      	 
      	 
      	
                                  8
      DRIVER UT TR 39B

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  553081‡

                                	 
      	 
      	 
      	
                                  8
      DRIVER UT TR 40A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  663960‡

                                	 
      	 
      	 
      	
                                  8
      DRIVER UT TR 56A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  553434‡

                                	 
      	 
      	 
      	
                                  8
      DRIVER UT TR 58A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  663755‡

                                	 
      	 
      	 
      	
                                  8
      DRIVER UT TR 75A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  553473‡

                                	 
      	 
      	 
      	
                                  8
      DRIVER UT TR 76A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  552622

                                	 
      	 
      	 
      	
                                  8
      DRIVER UT TR 83A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  593272

                                	 
      	 
      	 
      	
                                  8
      DRIVER UT TR 84A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  062526

                                	 
      	 
      	 
      	
                                  SDU
      119A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  552684

                                	 
      	 
      	 
      	
                                  SDU
      TRACT 118

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  054309

                                	 
      	 
      	 
      	
                                  SDU
      TRACT 233A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  095626

                                	 
      	 
      	 
      	
                                  SDU
      TRACT 233B

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  001906

                                	 
      	 
      	 
      	
                                  SDU
      TRACT 248

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  125562

                                	 
      	 
      	 
      	
                                  SDU
      TRACT 40 A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  128568

                                	 
      	 
      	 
      	
                                  SDU
      TRACT 40 B

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  064251

                                	 
      	 
      	 
      	
                                  SDU
      TRACT 92A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  054390

                                	 
      	 
      	 
      	
                                  SDU
      TRACT 93A

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  552668

                                	 
      	 
      	 
      	
                                  SPRABERRY
      DRIVER UNIT TR 20

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  015400

                                
	
                                  096991

                                	 
      	 
      	 
      	
                                  STUARD-A-

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  024037

                                
	
                                  060600

                                	 
      	 
      	 
      	
                                  TXL-DC-

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  006391

                                
	
                                  060700‡

                                	 
      	 
      	 
      	
                                  TXL-H-35-

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  006269

                                
	
                                  550897

                                	 
      	 
      	 
      	
                                  TXL
      'V'

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  033767

                                
	
                                  551227

                                	 
      	 
      	 
      	
                                  TXL
      'W'

                                	 
      	
                                  PIONEER
      NATURAL RES USA

                                	 
      	
                                  IN
      GLASSCOCK

                                	 
      	
                                  TX

                                	 
      	
                                  X1585

                                	 
      	
                                  EDQ

                                	 
      	
                                  ($0.7000)

                                	 
      	
                                  $0.0000

                                	 
      	
                                  100.00000%

                                	 
      	
                                  Flat

                                	 
      	
                                  034011

                                


                        

                      

                    

                     

                    
                      
                         


                      

                      
                         


                        
                          

                        

                      

                      
                         


                      

                    

                     

                    
                      Exhibit
"A"

                      


                      Sep 04,
2009

                      Page 3
of 31

                       

                    

                    
                      	
                              Plains
      Contract:

                            	 	
                              2582-1014

                            	 	
                              Effective:
      09-01-2009

                            	 	
                              Plains
      Marketing L.P.

                            	 
      


                    

                    


                    
                      	
                              
                                PM

                                Lease

                                ‡=
      inact

                              

                            	 
      	 
      	 
      	
                              Lease

                            	 
      	
                              Operator

                            	 
      	
                              County/

                              Parish

                            	 
      	 
      	 
      	
                              Price

                            	 
      	
                              Price
      Method

                            	 
      	
                              Applicable

                              Premium

                              Or

                              (Deduct)

                            	 
      	
                              Fuel

                              Adjust

                            	 
      	
                              Percent

                            	 
      	
                              Gravity

                            	 
      	
                              State

                              Lease

                            
	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      
	
                              014271

                            	 
      	 
      	 
      	
                              W A
      HUTCHINSON 12

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              GLASSCOCK

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              006278

                            
	
                              546266

                            	 
      	 
      	 
      	
                              WEYMAN

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              GLASSCOCK

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              025980

                            
	
                              548411

                            	 
      	 
      	 
      	
                              WRAGE

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              GLASSCOCK

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              030219

                            
	
                              548412‡

                            	 
      	 
      	 
      	
                              WRAGE
      A

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              GLASSCOCK

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              030295

                            
	
                              552175

                            	 
      	 
      	 
      	
                              X B
      COX 'C'

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              GLASSCOCK

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              012142

                            
	
                              135151

                            	 
      	 
      	 
      	
                              STOKES

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              HOWARD

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              026053

                            
	
                              087419

                            	 
      	
                              (4)

                            	 
      	
                              ROCKER
      B "J"

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              IRION

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              60.00000%

                            	 
      	
                              Flat

                            	 
      	
                              1168

                            
	
                              079894

                            	 
      	
                              (4)

                            	 
      	
                              ROCKER
      B "S"

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              IRION

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              40.00000%

                            	 
      	
                              Flat

                            	 
      	
                              1168

                            
	
                              546413

                            	 
      	 
      	 
      	
                              ADOBE-HYATT

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              030421

                            
	
                              547970

                            	 
      	
                              (44)

                            	 
      	
                              ALICO

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              5704

                            
	
                              548499

                            	 
      	
                              (44)

                            	 
      	
                              ALICO
      A

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              5704

                            
	
                              550308‡

                            	 
      	 
      	 
      	
                              ALLAR
      A

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              021097

                            
	
                              545967

                            	 
      	
                              (54)

                            	 
      	
                              ANCHOR

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              5803

                            
	
                              546360

                            	 
      	
                              (54)

                            	 
      	
                              ANCHOR
      A

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              5803

                            
	
                              547703

                            	 
      	 
      	 
      	
                              ANCHOR
      B

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              031111

                            
	
                              552472

                            	 
      	 
      	 
      	
                              ANCHOR
      C

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              031506

                            
	
                              547704

                            	 
      	 
      	 
      	
                              BELL

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              031226

                            
	
                              120692

                            	 
      	 
      	 
      	
                              BESSIE
      SMITH #1

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              021672

                            
	
                              550030

                            	 
      	 
      	 
      	
                              BLACK

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              033166

                            
	
                              549967

                            	 
      	 
      	 
      	
                              BLACK
      A

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              033135

                            
	
                              120694‡

                            	 
      	 
      	 
      	
                              BLOCKER
      3#1

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              030387

                            
	
                              120695

                            	 
      	 
      	 
      	
                              BLOCKER
      A#1

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              022215

                            
	
                              120693

                            	 
      	 
      	 
      	
                              BLOCKER#2

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              022088

                            
	
                              015826

                            	 
      	 
      	 
      	
                              BOEHMKE

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              019561

                            
	
                              549796

                            	 
      	 
      	 
      	
                              BOEHMKE
      A

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              033073

                            
	
                              548479

                            	 
      	
                              (64)

                            	 
      	
                              BOHANAN

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              031220

                            
	
                              130487

                            	 
      	
                              (64)

                            	 
      	
                              BOHANAN
      #2

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              031220

                            
	
                              548461

                            	 
      	 
      	 
      	
                              BREEDLOVE

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              031125

                            
	
                              549888

                            	 
      	 
      	 
      	
                              BRISTOW
      A

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              032988

                            
	
                              017812

                            	 
      	
                              (76)

                            	 
      	
                              BRISTOW
      B

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              5898

                            


                    

                     

                    
                      
                         


                      

                      
                         


                        
                          

                        

                      

                      
                         


                      

                    

                     

                    
                      Exhibit
"A"

                      


                      Sep 04,
2009

                      Page 4 of
31

                    

                    


                    
                      	
                              Plains
      Contract:

                            	 	
                              2582-1014

                            	 	
                              Effective:
      09-01-2009

                            	 	
                              Plains
      Marketing L.P.

                            	 
      


                    

                    


                    
                      	
                              
                                
                                  PM

                                  Lease

                                  ‡=
      inact

                                

                              

                            	 
      	 
      	 
      	
                              Lease

                            	 
      	
                              Operator

                            	 
      	
                              County/

                              Parish

                            	 
      	 
      	 
      	
                              Price

                            	 
      	
                              Price
      Method

                            	 
      	
                              Applicable

                              Premium

                              Or

                              (Deduct)

                            	 
      	
                              Fuel

                              Adjust

                            	 
      	
                              Percent

                            	 
      	
                              Gravity

                            	 
      	
                              State

                              Lease

                            
	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      
	
                              550038

                            	 
      	 
      	 
      	
                              BRISTOW
      C

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              033171

                            
	
                              648509

                            	 
      	 
      	 
      	
                              BURLEY

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              031102

                            
	
                              095839

                            	 
      	
                              (56)

                            	 
      	
                              CAFFEY
      #3

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              027778

                            
	
                              079406

                            	 
      	
                              (56)

                            	 
      	
                              CAFFEY
      #1

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              027778

                            
	
                              128769

                            	 
      	
                              (56)

                            	 
      	
                              CAFFEY
      #4

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              027778

                            
	
                              548296

                            	 
      	 
      	 
      	
                              CAMPBELL
      83

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              4626

                            
	
                              548484

                            	 
      	
                              (50)

                            	 
      	
                              CAMPBELL
      B#1

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              5805

                            
	
                              123418

                            	 
      	
                              (50)

                            	 
      	
                              CAMPBELL
      B#2

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              5805

                            
	
                              548485

                            	 
      	 
      	 
      	
                              CAMPBELL
      C

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              031127

                            
	
                              548458

                            	 
      	
                              (50)

                            	 
      	
                              CAMPBELL
      E#1

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              5805

                            
	
                              548614

                            	 
      	
                              (56)

                            	 
      	
                              CAMPBELL
      F

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              5804

                            
	
                              548613

                            	 
      	
                              (56)

                            	 
      	
                              CAMPBELL
      G

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              5804

                            
	
                              120696

                            	 
      	 
      	 
      	
                              CLARA
      SHOEMAKER#2

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              021704

                            
	
                              114782

                            	 
      	 
      	 
      	
                              CLINE
      A

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              026780

                            
	
                              547971

                            	 
      	 
      	 
      	
                              CLONA

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              026846

                            
	
                              550318

                            	 
      	
                              (45)

                            	 
      	
                              COFFIELD

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              5705

                            
	
                              550319

                            	 
      	
                              (45)

                            	 
      	
                              COFFIELD
      A

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              5705

                            
	
                              109540

                            	 
      	
                              (10)

                            	 
      	
                              COWDEN

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              52.00000%

                            	 
      	
                              Flat

                            	 
      	
                              6185

                            
	
                              109541

                            	 
      	
                              (10)

                            	 
      	
                              COWDEN
      A

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              48.00000%

                            	 
      	
                              Flat

                            	 
      	
                              6185

                            
	
                              120698

                            	 
      	 
      	 
      	
                              CROSS
      35#1

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              031437

                            
	
                              550020

                            	 
      	 
      	 
      	
                              CROSS
      A

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              033148

                            
	
                              550031

                            	 
      	 
      	 
      	
                              CROSS
      B

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              033157

                            
	
                              120699

                            	 
      	 
      	 
      	
                              CROSS
      C#1

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              021720

                            
	
                              550009‡

                            	 
      	 
      	 
      	
                              CURTIS
      N

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              7198

                            
	
                              135185

                            	 
      	 
      	 
      	
                              DICKENSON
      E#1

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              037871

                            
	
                              548606

                            	 
      	
                              (5)

                            	 
      	
                              DOVE
      F

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              5273

                            
	
                              055507

                            	 
      	 
      	 
      	
                              ELMA
      L SLAUGHTER D

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              020391

                            
	
                              093934

                            	 
      	 
      	 
      	
                              ELMA
      SLAUGHTER G #6

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              020911

                            
	
                              548661

                            	 
      	 
      	 
      	
                              ELROD
      C

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              021496

                            
	
                              120700

                            	 
      	 
      	 
      	
                              ENSERCH-LEWIS
      15#1

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              028839

                            


                    

                     

                    
                      
                         


                      

                      
                         


                        
                          

                        

                      

                      
                         


                      

                    

                    
                       

                      Exhibit
"A"

                      


                      Sep 04,
2009

                      Page 5
of 31

                    

                    


                    
                      	
                              Plains
      Contract:

                            	 	
                              2582-1014

                            	 	
                              Effective:
      09-01-2009

                            	 	
                              Plains
      Marketing L.P.

                            	 
      


                    

                    


                    
                      	
                              
                                
                                  PM

                                  Lease

                                  ‡=
      inact

                                

                              

                            	 
      	 
      	 
      	
                              Lease

                            	 
      	
                              Operator

                            	 
      	
                              County/

                              Parish

                            	 
      	 
      	 
      	
                              Price

                            	 
      	
                              Price
      Method

                            	 
      	
                              Applicable

                              Premium

                              Or

                              (Deduct)

                            	 
      	
                              Fuel

                              Adjust

                            	 
      	
                              Percent

                            	 
      	
                              Gravity

                            	 
      	
                              State

                              Lease

                            
	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      
	
                              120701

                            	 
      	 
      	 
      	
                              EPLEY
      E #2

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              022577

                            
	
                              120702

                            	 
      	 
      	 
      	
                              EPLEY
      G #2

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              023562

                            
	
                              054585

                            	 
      	 
      	 
      	
                              FISHERMAN

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              020746

                            
	
                              094552

                            	 
      	
                              (48)

                            	 
      	
                              FISHERMAN
      "A" #1

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              031979

                            
	
                              123173

                            	 
      	
                              (48)

                            	 
      	
                              FISHERMAN
      "A" #2

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              031979

                            
	
                              130045

                            	 
      	
                              (48)

                            	 
      	
                              FISHERMAN
      A #3

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              031979

                            
	
                              547969

                            	 
      	 
      	 
      	
                              FLANAGAN
      F

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              031638

                            
	
                              058030

                            	 
      	 
      	 
      	
                              FORD

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              021096

                            
	
                              120703‡

                            	 
      	 
      	 
      	
                              FRAZIER
      4#1

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              029698

                            
	
                              547897‡

                            	 
      	 
      	 
      	
                              FRYAR

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              023776

                            
	
                              547973

                            	 
      	 
      	 
      	
                              FULLER

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              028890

                            
	
                              548792

                            	 
      	 
      	 
      	
                              FULLER
      #2

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              028890

                            
	
                              548441‡

                            	 
      	 
      	 
      	
                              FULLER
      A

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              030985

                            
	
                              548000

                            	 
      	 
      	 
      	
                              GILBERT

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              029450

                            
	
                              548415

                            	 
      	 
      	 
      	
                              GLASCOCK
      A

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              030420

                            
	
                              120712

                            	 
      	 
      	 
      	
                              GLASCOCK
      A5

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              022305

                            
	
                              120713

                            	 
      	 
      	 
      	
                              GLASCOCK
      B #2 STRAWN

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              022119

                            
	
                              120714

                            	 
      	 
      	 
      	
                              GLASCOCK
      C

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              022178

                            
	
                              120704

                            	 
      	 
      	 
      	
                              GLASPIE
      #1

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              022955

                            
	
                              135409

                            	 
      	 
      	 
      	
                              GLASS
      10 #1

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              037887

                            
	
                              120705

                            	 
      	 
      	 
      	
                              GLASS
      CC

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              022556

                            
	
                              120707

                            	 
      	 
      	 
      	
                              GLASS
      EE

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              022654

                            
	
                              120709‡

                            	 
      	 
      	 
      	
                              GLASS
      GG

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              022675

                            
	
                              139612

                            	 
      	 
      	 
      	
                              GLASS
      P

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              031522

                            
	
                              589194

                            	 
      	 
      	 
      	
                              GLASS
      Q

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              031476

                            
	
                              139614

                            	 
      	 
      	 
      	
                              GLASS
      R

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              031463

                            
	
                              128693

                            	 
      	 
      	 
      	
                              GLASSCOCK
      AA#1

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              037500

                            
	
                              085609

                            	 
      	 
      	 
      	
                              GLENDENNING
      A

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              033182

                            
	
                              002038

                            	 
      	 
      	 
      	
                              GLENDENNING
      B

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              022207

                            
	
                              550011

                            	 
      	 
      	 
      	
                              GRAVES
      C

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              033138

                            


                    

                     

                    
                      
                         


                      

                      
                         


                        
                          

                        

                      

                      
                         


                      

                    


                    
                      Exhibit
"A"

                      


                      Sep 04,
2009

                      Page 6
of 31

                    

                    


                    
                      	
                              Plains
      Contract:

                            	 	
                              2582-1014

                            	 	
                              Effective:
      09-01-2009

                            	 	
                              Plains
      Marketing L.P.

                            	 
      


                    

                    


                    
                      	
                              
                                
                                  PM

                                  Lease

                                  ‡=
      inact

                                

                              

                            	 
      	 
      	 
      	
                              Lease

                            	 
      	
                              Operator

                            	 
      	
                              County/

                              Parish

                            	 
      	 
      	 
      	
                              Price

                            	 
      	
                              Price
      Method

                            	 
      	
                              Applicable

                              Premium

                              Or

                              (Deduct)

                            	 
      	
                              Fuel

                              Adjust

                            	 
      	
                              Percent

                            	 
      	
                              Gravity

                            	 
      	
                              State

                              Lease

                            
	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      
	
                              130128

                            	 
      	 
      	 
      	
                              GREEMAN-GRISHMAN
      #3

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              037611

                            
	
                              548473

                            	 
      	 (43)	 
      	
                              GRIFFIN
      A

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              5703

                            
	
                              119362

                            	 
      	 (43)	 
      	
                              GRIFFIN
      ESTATE

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              5703

                            
	
                              114761

                            	 
      	 (60)	 
      	
                              GULF
      C

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              026529

                            
	
                              130259

                            	 
      	 (60)	 
      	
                              GULF
      C#2

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              026529

                            
	
                              549326

                            	 
      	 
      	 
      	
                              GUY
      A

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              032600

                            
	
                              549830

                            	 
      	 
      	 
      	
                              GUY
      T

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              032964

                            
	
                              549828

                            	 
      	 
      	 
      	
                              GUY
      U

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              032959

                            
	
                              548337

                            	 
      	 
      	 
      	
                              HARVARD

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              028711

                            
	
                              548338

                            	 
      	 
      	 
      	
                              HARVARD
      A

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              028988

                            
	
                              135152

                            	 
      	 
      	 
      	
                              HARVARD
      D

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              034004

                            
	
                              120715

                            	 
      	 
      	 
      	
                              HAZELWOOD
      A

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              021589

                            
	
                              130170

                            	 
      	 (58)	 
      	
                              HAZELWOOD
      AA

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              5792

                            
	
                              120716

                            	 
      	 (58)	 
      	
                              HAZELWOOD
      B

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              5792

                            
	
                              120717

                            	 
      	 
      	 
      	
                              HAZELWOOD
      C

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              022020

                            
	
                              120718

                            	 
      	 
      	 
      	
                              HAZELWOOD
      D

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              022182

                            
	
                              545965

                            	 
      	 (11)	 
      	
                              HOLT

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              5617

                            
	
                              548339

                            	 
      	 (11)	 
      	
                              HOLT
      B

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              5617

                            
	
                              551801

                            	 
      	 
      	 
      	
                              HOLT
      C

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              031493

                            
	
                              548091

                            	 
      	 
      	 
      	
                              HOLT
      F

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              028215

                            
	
                              139611

                            	 
      	 (69)	 
      	
                              HOLT
      RANCH A #5/ORI

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              028528

                            
	
                              139512

                            	 
      	 (60)	 
      	
                              HOLT
      RANCH A #7/ORI

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              025528

                            
	
                              139513

                            	 
      	 (69)	 
      	
                              HOLT
      RANCH A/ORI

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              028528

                            
	
                              130396

                            	 
      	 
      	 
      	
                              HOWARD
      #5

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              037687

                            
	
                              120720

                            	 
      	 
      	 
      	
                              HULL
      #1

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              022162

                            
	
                              548340

                            	 
      	 
      	 
      	
                              HYATT
      & HYATT C

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              4451

                            
	
                              548341

                            	 
      	 
      	 
      	
                              HYATT
      B

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              029503

                            
	
                              545977

                            	 
      	 
      	 
      	
                              HYATT
      F

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              030637

                            
	
                              547701

                            	 
      	 
      	 
      	
                              HYATT
      J

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              031553

                            
	
                              548617

                            	 
      	 
      	 
      	
                              HYATT
      K

                            	 
      	
                              PIONEER
      NATURAL RES USA IN

                            	 
      	
                              MARTIN

                            	 
      	
                              TX

                            	 
      	
                              X1585

                            	 
      	
                              EDQ

                            	 
      	
                              ($0.7000)

                            	 
      	
                              $0.0000

                            	 
      	
                              100.00000%

                            	 
      	
                              Flat

                            	 
      	
                              031803

                            


                    

                  

                   

                  
                    
                      
                      

                    

                    
                      
                      

                      
                        

                      

                    

                    
                      
                      

                    

                  

                   

                  Exhibit
"A"

                

                


                Sep
04, 2009

                Page
7 of 31

                
                  


                  
                    	
                            Plains
      Contract:

                          	 	
                            2582-1014

                          	 	
                            Effective:
      09-01-2009

                          	 	
                            Plains
      Marketing L.P.

                          	 
      


                  

                   

                

                
                  	
                          
                            
                              PM

                              Lease

                              ‡=
      inact

                            

                          

                        	 
      	 
      	 
      	
                          Lease

                        	 
      	
                          Operator

                        	 
      	
                          County/Parish

                        	 
      	 
      	 
      	
                          Price

                        	 
      	
                          Price
      Method

                        	 
      	
                          Applicable

                          Premium

                          Or

                          (Deduct)

                        	 
      	
                          Fuel

                          Adjust

                        	 
      	
                          Percent

                        	 
      	
                          Gravity

                        	 	
                          State

                          Lease

                        
	
                          548758

                        	 
      	 
      	 
      	
                          Hyatt
      L

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            032172

                          

                        
	
                          548668

                        	 
      	 
      	 
      	
                          IT
      GRAVES B

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            027332

                          

                        
	
                          548701

                        	 
      	 
      	 
      	
                          J C
      MOTT

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            016064

                          

                        
	
                          547974

                        	 
      	 
      	 
      	
                          J L
      GLAZE

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            028891

                          

                        
	
                          154372

                        	 
      	
                          (83)

                        	 
      	
                          J W
      MEEK #2

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            038768

                          

                        
	
                          548520

                        	 
      	 
      	 
      	
                          JAY

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            031221

                          

                        
	
                          547975

                        	 
      	 
      	 
      	
                          JIM
      TOM

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            6012

                          

                        
	
                          548262

                        	 
      	 
      	 
      	
                          JOHNSON

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            026996

                          

                        
	
                          548822

                        	 
      	 	 
      	
                          JOHNSON
      C

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            031598

                          

                        
	
                          120721

                        	 
      	 
      	 
      	
                          JONES
      #1 & #2

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021987

                          

                        
	
                          123184

                        	 
      	 
      	 
      	
                          JONES
      #3

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            5883

                          

                        
	
                          064415

                        	 
      	 
      	 
      	
                          JUMPER
      #1

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            034612

                          

                        
	
                          549923‡

                        	 
      	 
      	 
      	
                          KEATON
      C

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            033042

                          

                        
	
                          550644

                        	 
      	 
      	 
      	
                          KELLY

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            028644

                          

                        
	
                          547442

                        	 
      	 
      	 
      	
                          KELLY
      C

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            018072

                          

                        
	
                          139737

                        	 
      	
                          (76)

                        	 
      	
                          KENTEX

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            5898

                          

                        
	
                          547669

                        	 
      	 
      	 
      	
                          KEWANEE
      -A-

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            032169

                          

                        
	
                          549814‡

                        	 
      	 
      	 
      	
                          KEWANEE
      B

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            032935

                          

                        
	
                          550037

                        	 
      	 
      	 
      	
                          KEWANEE
      C

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            033160

                          

                        
	
                          547978

                        	 
      	 
      	 
      	
                          KEY

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            028012

                          

                        
	
                          120722

                        	 
      	 
      	 
      	
                          KEY
      B

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            022221

                          

                        
	
                          547707

                        	 
      	 
      	 
      	
                          KLUTHE-MADISON

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            024458

                          

                        
	
                          097011

                        	 
      	 
      	 
      	
                          KLUTHE-PHILLIPS

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            023872

                          

                        
	
                          109615

                        	 
      	 
      	 
      	
                          KUHLMAN

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            022118

                          

                        
	
                          548522

                        	 
      	 
      	 
      	
                          LAW

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            031199

                          

                        
	
                          014328‡

                        	 
      	 
      	 
      	
                          LEE
      GRAVES

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            038867

                          

                        
	
                          120727

                        	 
      	 
      	 
      	
                          LENARD
      SHOEMAKER #1

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021769

                          

                        
	
                          120724

                        	 
      	 
      	 
      	
                          LENORAH
      EPLEY

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021518

                          

                        
	
                          120725

                        	 
      	 
      	 
      	
                          LENORAH
      EPLEY A

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021553

                          

                        
	
                          120726

                        	 
      	 
      	 
      	
                          LENORAH
      EPLEY B

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          021546

                        


                


                
                  
                     


                  

                  
                     


                    
                      

                    

                  

                  
                     


                  

                

                


                Exhibit
"A"

                


                Sep
04, 2009

                Page
8 of 31

                
                  


                  
                    	
                            Plains
      Contract:

                          	 	
                            2582-1014

                          	 	
                            Effective:
      09-01-2009

                          	 	
                            Plains
      Marketing L.P.

                          	 
      


                  

                   

                

                
                  	
                          
                            
                              PM

                              Lease

                              �=
      inact

                            

                          

                        	 
      	 
      	 
      	
                          Lease

                        	 
      	
                          Operator

                        	 
      	
                          County/Parish

                        	 
      	 
      	 
      	
                          Price

                        	 
      	
                          Price
      Method

                        	 
      	
                          Applicable

                          Premium

                          Or

                          (Deduct)

                        	 
      	
                          Fuel

                          Adjust

                        	 
      	
                          Percent

                        	 
      	
                          Gravity

                        	 	
                          State

                          Lease

                        
	
                          
                            120728

                          

                        	 
      	 
      	 
      	
                          LOUDER

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021815

                          

                        
	
                          
                            120729

                          

                        	 
      	 
      	 
      	
                          LOUDER
      3#1

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            029110

                          

                        
	
                          
                            120730�

                          

                        	 
      	 
      	 
      	
                          LOUDER
      45#1

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            000000

                          

                        
	
                          
                            096247

                          

                        	 
      	 
      	 
      	
                          M C
      STEWART

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021685

                          

                        
	
                          
                            109537‡

                          

                        	 
      	 
      	 
      	
                          MABEE

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            025502

                          

                        
	
                          
                            548302

                          

                        	 
      	
                          (85)

                        	 
      	
                          MABEE

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          50.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            4823

                          

                        
	
                          
                            548382

                          

                        	 
      	 
      	 
      	
                          MABEE
      B

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            030043

                          

                        
	
                          
                            547709

                          

                        	 
      	 
      	 
      	
                          MABEE
      T

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            032148

                          

                        
	
                          
                            548004

                          

                        	 
      	 
      	 
      	
                          MABEE
      X

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            029187

                          

                        
	
                          
                            549308

                          

                        	 
      	 
      	 
      	
                          MABEE
      Y

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            032519

                          

                        
	
                          
                            097365

                          

                        	 
      	 
      	 
      	
                          MADISON
      -C-

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            020897

                          

                        
	
                          
                            097386

                          

                        	 
      	 
      	 
      	
                          MADISON
      D

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021163

                          

                        
	
                          
                            547679

                          

                        	 
      	 
      	 
      	
                          MADISON
      -E-

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            026500

                          

                        
	
                          
                            550022

                          

                        	 
      	 
      	 
      	
                          MADISON
      F

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            033145

                          

                        
	
                          
                            548877

                          

                        	 
      	 
      	 
      	
                          MARTIN
      A

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021963

                          

                        
	
                          
                            135459

                          

                        	 
      	 
      	 
      	
                          MAYS
      #3

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            037910

                          

                        
	
                          
                            130066

                          

                        	 
      	 
      	 
      	
                          MCALPINE
      #2

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            037630

                          

                        
	
                          
                            097585

                          

                        	 
      	 
      	 
      	
                          MCKENNEY
      -A-

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021177

                          

                        
	
                          
                            547690

                          

                        	 
      	 
      	 
      	
                          MCMORRIES
      -B-

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            027824

                          

                        
	
                          
                            647710‡

                          

                        	 
      	 
      	 
      	
                          MCMORRIES
      C

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            027218

                          

                        
	
                          
                            548757

                          

                        	 
      	 
      	 
      	
                          MCREYNOLDS
      D

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            032200

                          

                        
	
                          
                            548572

                          

                        	 
      	 
      	 
      	
                          MCREYNOLDS
      F

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            032494

                          

                        
	
                          
                            060703

                          

                        	 
      	 
      	 
      	
                          MEEK
      -A-

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021165

                          

                        
	
                          
                            547712

                          

                        	 
      	 
      	 
      	
                          MEEK
      D

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021658

                          

                        
	
                          
                            550010

                          

                        	 
      	
                          (83)

                        	 
      	
                          MEEK
      E

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            033119

                          

                        
	
                          
                            120731

                          

                        	 
      	 
      	 
      	
                          MEEK
      F#1

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            023900

                          

                        
	
                          
                            120733

                          

                        	 
      	 
      	 
      	
                          MIMS
      B#1

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            023797

                          

                        
	
                          
                            120732

                          

                        	 
      	 
      	 
      	
                          MIMS#1

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            023038

                          

                        
	
                          
                            549688

                          

                        	 
      	 
      	 
      	
                          MOTT
      A

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            033050

                          

                        
	
                          
                            548270

                          

                        	 
      	 
      	 
      	
                          NAIL
      A

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            027538

                          

                        


                


                
                  
                     


                  

                  
                     


                    
                      

                    

                  

                  
                     


                  

                

                


                Exhibit
"A"

                


                Sep
04, 2009

                Page
9 of 31

                
                  


                  
                    	
                            Plains
      Contract:

                          	 	
                            2582-1014

                          	 	
                            Effective:
      09-01-2009

                          	 	
                            Plains
      Marketing L.P.

                          	 
      


                  

                   

                

                
                  	
                          
                            
                              PM

                              Lease

                              ‡=
      inact

                            

                          

                        	 
      	 
      	 
      	
                          Lease

                        	 
      	
                          Operator

                        	 
      	
                          County/Parish

                        	 
      	 
      	 
      	
                          Price

                        	 
      	
                          Price
      Method

                        	 
      	
                          Applicable

                          Premium

                          Or

                          (Deduct)

                        	 
      	
                          Fuel

                          Adjust

                        	 
      	
                          Percent

                        	 
      	
                          Gravity

                        	 	
                          State

                          Lease

                        
	
                          
                            548271

                          

                        	 
      	 
      	 
      	
                          NAIL
      B

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            027744

                          

                        
	
                          
                            548281

                          

                        	 
      	 
      	 
      	
                          NAIL
      C

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            027831

                          

                        
	
                          
                            548282

                          

                        	 
      	 
      	 
      	
                          NAIL
      D

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            027694

                          

                        
	
                          
                            548292

                          

                        	 
      	 
      	 
      	
                          NAIL
      E

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            027950

                          

                        
	
                          
                            548307

                          

                        	 
      	 
      	 
      	
                          NAIL
      G

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            028392

                          

                        
	
                          
                            548308

                          

                        	 
      	 
      	 
      	
                          NAIL
      H

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            028700

                          

                        
	
                          
                            548310

                          

                        	 
      	 
      	 
      	
                          NAIL
      J

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            028996

                          

                        
	
                          
                            548349

                          

                        	 
      	 
      	 
      	
                          NAIL
      K

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            028984

                          

                        
	
                          
                            548386

                          

                        	 
      	 
      	 
      	
                          NAIL
      L

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            029749

                          

                        
	
                          
                            548460

                          

                        	 
      	 
      	 
      	
                          NAIL
      M

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            031006

                          

                        
	
                          
                            548481

                          

                        	 
      	 
      	 
      	
                          NAIL
      N

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            030970

                          

                        
	
                          
                            548482

                          

                        	 
      	 
      	 
      	
                          NAIL
      O

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            030972

                          

                        
	
                          
                            548528

                          

                        	 
      	 
      	 
      	
                          NAIL
      P

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            031079

                          

                        
	
                          
                            548598

                          

                        	 
      	 
      	 
      	
                          NAIL
      R

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            031623

                          

                        
	
                          
                            548598

                          

                        	 
      	 
      	 
      	
                          NAIL
      S

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            031583

                          

                        
	
                          
                            120734‡

                          

                        	 
      	 
      	 
      	
                          NAIL
      U#1

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            023711

                          

                        
	
                          
                            547443

                          

                        	 
      	 
      	 
      	
                          NANCE

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            015720

                          

                        
	
                          
                            120735

                          

                        	 
      	 
      	 
      	
                          OAKS

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            061776

                          

                        
	
                          
                            094820

                          

                        	 
      	
                          (51)

                        	 
      	
                          ORSON
      "I"

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            5754

                          

                        
	
                          
                            548530

                          

                        	 
      	
                          (57)

                        	 
      	
                          ORSON
      D

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            5813

                          

                        
	
                          
                            548575

                          

                        	 
      	 
      	 
      	
                          ORSON
      E

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            031470

                          

                        
	
                          
                            548681

                          

                        	 
      	 
      	 
      	
                          ORSON
      F

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            022025

                          

                        
	
                          
                            548549

                          

                        	 
      	 
      	 
      	
                          ORSON
      G

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            031542

                          

                        
	
                          
                            096351

                          

                        	 
      	
                          (51)

                        	 
      	
                          ORSON
      -H-

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            022424

                          

                        
	
                          
                            549232

                          

                        	 
      	
                          (51)

                        	 
      	
                          ORSON
      J

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            5754

                          

                        
	
                          
                            547916

                          

                        	 
      	 
      	 
      	
                          ORSON
      K

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            032460

                          

                        
	
                          
                            548417

                          

                        	 
      	 
      	 
      	
                          ORSON
      L

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            032509

                          

                        
	
                          
                            548335

                          

                        	 
      	 
      	 
      	
                          ORSON
      M

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            032575

                          

                        
	
                          
                            549400

                          

                        	 
      	
                          (57)

                        	 
      	
                          ORSON
      N

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            5813

                          

                        
	
                          
                            130200

                          

                        	 
      	
                          (57)

                        	 
      	
                          ORSON
      P

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            5813

                          

                        


                


                
                  
                     


                  

                  
                     


                    
                      

                    

                  

                  
                     


                  

                

                


                Exhibit
"A"

                


                Sep
04, 2009

                Page
10 of 31

                
                  


                  
                    	
                            Plains
      Contract:

                          	 	
                            2582-1014

                          	 	
                            Effective:
      09-01-2009

                          	 	
                            Plains
      Marketing L.P.

                          	 
      


                  

                   

                

                
                  	
                          
                            
                              PM

                              Lease

                              ‡=
      inact

                            

                          

                        	 
      	 
      	 
      	
                          Lease

                        	 
      	
                          Operator

                        	 
      	
                          County/Parish

                        	 
      	 
      	 
      	
                          Price

                        	 
      	
                          Price
      Method

                        	 
      	
                          Applicable

                          Premium

                          Or

                          (Deduct)

                        	 
      	
                          Fuel

                          Adjust

                        	 
      	
                          Percent

                        	 
      	
                          Gravity

                        	 	
                          State

                          Lease

                        
	
                          
                            130199

                          

                        	 
      	 
      	 
      	
                          ORSON
      Q

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            5813

                          

                        
	
                          
                            649965

                          

                        	 
      	 
      	 
      	
                          PETERS
      B

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            033103

                          

                        
	
                          
                            094992

                          

                        	 
      	 
      	 
      	
                          POWELL
      D

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021153

                          

                        
	
                          
                            558531

                          

                        	 
      	 
      	 
      	
                          REBECCA

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            031207

                          

                        
	
                          
                            550058

                          

                        	 
      	 
      	 
      	
                          REESE

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            033178

                          

                        
	
                          
                            130386

                          

                        	 
      	 (83)	 
      	
                          RICHARDS
      #1

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            037673

                          

                        
	
                          
                            130387

                          

                        	 
      	 (83)	 
      	
                          RICHARDS
      #2

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            037673

                          

                        
	
                          
                            135398

                          

                        	 
      	 (83)	 
      	
                          RICHARDS
      #3

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            037673

                          

                        
	
                          
                            135449

                          

                        	 
      	 (83)	 
      	
                          RICHARDS
      #4

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            037673

                          

                        
	
                          
                            142317

                          

                        	 
      	 (83)	 
      	
                          RICHARDS
      #5

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            037673

                          

                        
	
                          
                            154023

                          

                        	 
      	 (83)	 
      	
                          RICHARDS
      #6

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            037673

                          

                        
	
                          
                            142129

                          

                        	 
      	 (83)	 
      	
                          RICHARDS
      #7

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            037673

                          

                        
	
                          
                            000512

                          

                        	 
      	 
      	 
      	
                          SALE
      -A-

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021428

                          

                        
	
                          
                            120736

                          

                        	 
      	 
      	 
      	
                          SALE
      RANCH

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021162

                          

                        
	
                          
                            120737

                          

                        	 
      	 
      	 
      	
                          SALE
      RANCH A

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021313

                          

                        
	
                          
                            120738

                          

                        	 
      	 
      	 
      	
                          SALE
      RANCH B

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021372

                          

                        
	
                          
                            120739

                          

                        	 
      	 
      	 
      	
                          SALE
      RANCH C

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021438

                          

                        
	
                          
                            120740

                          

                        	 
      	 
      	 
      	
                          SALE
      RANCH D

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021491

                          

                        
	
                          
                            120741

                          

                        	 
      	 
      	 
      	
                          SALE
      RANCH E

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021786

                          

                        
	
                          
                            120742

                          

                        	 
      	 
      	 
      	
                          SALE
      RANCH F

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            021824

                          

                        
	
                          
                            120743

                          

                        	 
      	 
      	 
      	
                          SALE
      RANCH G

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            022074

                          

                        
	
                          
                            120744

                          

                        	 
      	 
      	 
      	
                          SALE
      RANCH H

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            022070

                          

                        
	
                          
                            120745

                          

                        	 
      	 
      	 
      	
                          SALE
      RANCH K

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            022097

                          

                        
	
                          
                            120746

                          

                        	 
      	 
      	 
      	
                          SALE
      RANCH L

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            022173

                          

                        
	
                          
                            120747

                          

                        	 
      	 
      	 
      	
                          SALE
      RANCH M

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            022543

                          

                        
	
                          
                            120748

                          

                        	 
      	 
      	 
      	
                          SALE
      RANCH N

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            022544

                          

                        
	
                          
                            120749

                          

                        	 
      	 
      	 
      	
                          SALE
      RANCH O

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            022978

                          

                        
	
                          
                            120750

                          

                        	 
      	 
      	 
      	
                          SALE
      RANCH P

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            024226

                          

                        
	
                          
                            120751

                          

                        	 
      	 
      	 
      	
                          SALE
      RANCH Q

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            024269

                          

                        
	
                          
                            120752

                             

                          

                        	 
      	 
      	 
      	
                          SALE
      RANCH S

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MARTIN

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 	
                          
                            024350

                          

                        


                

              

              
 

              
                
                   


                

                
                   


                  
                    

                  

                

                
                   


                

              


              Exhibit
"A"

              


              Sep
04, 2009

              Page
11 of 31

              


              
                	
                        Plains
      Contract:

                      	 	
                        2582-1014

                      	 	
                        Effective:
      09-01-2009

                      	 	
                        Plains
      Marketing L.P.

                      	 
      


              

              


              
                	
                        PM

                        Lease

                        ‡=
      inact

                      	 
      	 
      	 
      	
                        Lease

                      	 
      	
                        Operator

                      	 
      	
                        County/Parish

                      	 
      	 
      	 
      	
                        Price

                      	 
      	
                        Price
      Method

                      	 
      	
                        Applicable

                        Premium

                        Or

                        (Deduct)

                      	 
      	
                        Fuel

                        Adjust

                      	 
      	
                        Percent

                      	 
      	
                        Gravity

                      	 	
                        State

                        Lease

                      
	
                        128926

                      	 
      	 
      	 
      	
                        SALE
      RANCH T

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        037620

                      
	
                        128962

                      	 
      	 
      	 
      	
                        SALE
      RANCH U #1

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        037628

                      
	
                        111938

                      	 
      	 
      	 
      	
                        SARAH
      A1

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        037008

                      
	
                        548258‡

                      	 
      	 
      	 
      	
                        SAWYER

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        026930

                      
	
                        120754

                      	 
      	 
      	 
      	
                        SAWYER
      B#1

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        022243

                      
	
                        548848

                      	 
      	 
      	 
      	
                        SCHARBAUER
      W

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        032244

                      
	
                        554421

                      	 
      	
                        (5)

                      	 
      	
                        SCHARBAUER
      W #3

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        5273

                      
	
                        120755

                      	 
      	 
      	 
      	
                        STIMSON
      BURLEY P#2

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        022561

                      
	
                        548260

                      	 
      	 
      	 
      	
                        STIMSON-BURLEY

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        4202

                      
	
                        548272

                      	 
      	 
      	 
      	
                        STIMSON-BURLEY
      C

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        027891

                      
	
                        552195‡

                      	 
      	 
      	 
      	
                        STIMSON-BURLEY
      'C' #3

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        027891

                      
	
                        548273

                      	 
      	 
      	 
      	
                        STIMSON-BURLEY
      D

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        027596

                      
	
                        548294

                      	 
      	 
      	 
      	
                        STIMSON-BURLEY
      E

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        028013

                      
	
                        548316

                      	 
      	 
      	 
      	
                        STIMSON-BURLEY
      F

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        028788

                      
	
                        548319

                      	 
      	 
      	 
      	
                        STIMSON-BURLEY
      G

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        029094

                      
	
                        120756

                      	 
      	 
      	 
      	
                        STROUD
      E

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        021670

                      
	
                        120757

                      	 
      	 
      	 
      	
                        STUBBLEFIELD

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        022000

                      
	
                        548596

                      	 
      	
                        (49)

                      	 
      	
                        TATE
      #1

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        031541

                      
	
                        123174

                      	 
      	
                        (49)

                      	 
      	
                        TATE
      #4

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        031541

                      
	
                        109617

                      	 
      	 
      	 
      	
                        TATE
      A

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        031581

                      
	
                        548397

                      	 
      	 
      	 
      	
                        TOM

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        029339

                      
	
                        120758

                      	 
      	 
      	 
      	
                        TOM
      A

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        022220

                      
	
                        548829

                      	 
      	 
      	 
      	
                        TUNNELL

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        031792

                      
	
                        550311

                      	 
      	 
      	 
      	
                        WHITE
      ESTATE

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        021075

                      
	
                        094187

                      	 
      	 
      	 
      	
                        WILLIAMS
      A #2

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        021688

                      
	
                        120611

                      	 
      	
                        (46)

                      	 
      	
                        WILLIAMS
      A #3

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        5717

                      
	
                        548497

                      	 
      	
                        (46)

                      	 
      	
                        WILLIAMS
      G #1

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        5717

                      
	
                        549488‡

                      	 
      	 
      	 
      	
                        WILLIAMS
      H

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        031176

                      
	
                        120781

                      	 
      	 
      	 
      	
                        WILLIAMS
      #1

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        022610

                      
	
                        120762

                      	 
      	 
      	 
      	
                        WILSON
      #1

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 	
                        023625

                      


              


              
                
                   


                

                
                   


                  
                    

                  

                

                
                   


                

              

               

              Exhibit
"A"

              


              Sep
04, 2009

              Page
12 of 31

              


              
                	
                        Plains
      Contract:

                      	 	
                        2582-1014

                      	 	
                        Effective:
      09-01-2009

                      	 	
                        Plains
      Marketing L.P.

                      	 
      


              

               

              
                	
                        PM

                        Lease

                        ‡=
      inact

                      	 
      	 
      	 
      	
                        Lease

                      	 
      	
                        Operator

                      	 
      	
                        County/Parish

                      	 
      	 
      	 
      	
                        Price

                      	 
      	
                        Price
      Method

                      	 
      	
                        Applicable

                        Premium

                        Or

                        (Deduct)

                      	 
      	
                        Fuel

                        Adjust

                      	 
      	
                        Percent

                      	 
      	
                        Gravity

                      	 
      	
                        State

                        Lease

                      
	
                        548274

                      	 
      	 
      	 
      	
                        WOLCOTT

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        028397

                      
	
                        548285

                      	 
      	 
      	 
      	
                        WOLCOTT
      A & B

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        4293

                      
	
                        548325

                      	 
      	 
      	 
      	
                        WOLCOTT
      C

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        028288

                      
	
                        553181

                      	 
      	
                        (57)

                      	 
      	
                        YORK
      #2

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        5813

                      
	
                        120764

                      	 
      	 
      	 
      	
                        ZIMMERMAN
      #1

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        024782

                      
	
                        5479936

                      	 
      	 
      	 
      	
                        ALAN

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        029493

                      
	
                        052005

                      	 
      	 
      	 
      	
                        ALSUP

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        023152

                      
	
                        547673

                      	 
      	 
      	 
      	
                        ANDREW

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        029396

                      
	
                        550251

                      	 
      	 
      	 
      	
                        ANDREW
      A

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        033282

                      
	
                        549984

                      	 
      	 
      	 
      	
                        ANDREW
      C

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        033102

                      
	
                        548805

                      	 
      	 
      	 
      	
                        ANNIE

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        031938

                      
	
                        548710

                      	 
      	 
      	 
      	
                        ANNIE
      A

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        032064

                      
	
                        109654

                      	 
      	 
      	 
      	
                        ARCO
      #1

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        031057

                      
	
                        548363

                      	 
      	
                        (36)

                      	 
      	
                        ARICK

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        5683

                      
	
                        548438

                      	 
      	
                        (36)

                      	 
      	
                        ARICK
      A

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        5683

                      
	
                        548459

                      	 
      	 
      	 
      	
                        ARICK
      B

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        030938

                      
	
                        548581

                      	 
      	 
      	 
      	
                        ARICK
      C

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        031401

                      
	
                        548807

                      	 
      	 
      	 
      	
                        ARICK
      D

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        031663

                      
	
                        130162

                      	 
      	 
      	 
      	
                        ARNETT
      #3

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        037691

                      
	
                        114785

                      	 
      	
                        (13)

                      	 
      	
                        ATRELLE

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        5837

                      
	
                        114791

                      	 
      	
                        (13)

                      	 
      	
                        ATRELLE
      A

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        5837

                      
	
                        114784

                      	 
      	
                        (13)

                      	 
      	
                        ATRELLE
      B

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        5837

                      
	
                        548364

                      	 
      	 
      	 
      	
                        BABB

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        029183

                      
	
                        548558

                      	 
      	
                        (61)

                      	 
      	
                        BABB
      A

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        031439

                      
	
                        130280

                      	 
      	
                        (61)

                      	 
      	
                        BABB
      A #2

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        031439

                      
	
                        548250

                      	 
      	 
      	 
      	
                        BAKER
      A

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        025876

                      
	
                        548424

                      	 
      	 
      	 
      	
                        BAKER
      B

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        030385

                      
	
                        548508

                      	 
      	
                        (29)

                      	 
      	
                        BAUMANN

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        5676

                      
	
                        548552

                      	 
      	 
      	 
      	
                        BAUMANN
      A & B

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        5359

                      
	
                        549357

                      	 
      	
                        (29)

                      	 
      	
                        BAUMANN
      C

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MARTIN

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        5676

                      


              

              

                
                  
                     


                  

                  
                     


                    
                      

                    

                  

                  
                     


                  

                

              

               

              Exhibit
"A"

               

              Sep
04, 2009

              Page
13 of 31

              


              
                	
                        Plains
      Contract:

                      	 	
                        2582-1014

                      	 	
                        Effective:
      09-01-2009

                      	 	
                        Plains
      Marketing L.P.

                      	 
      


              

               

              
                	
                        PM

                        Lease

                        ‡=
      inact

                      	 
      	 
      	 
      	
                        Lease

                      	 
      	
                        Operator

                      	 
      	
                        County/Parish

                      	 
      	 
      	 
      	
                        Price

                      	 
      	
                        Price
      Method

                      	 
      	
                        Applicable

                        Premium

                        Or

                        (Deduct)

                      	 
      	
                        Fuel

                        Adjust

                      	 
      	
                        Percent

                      	 
      	
                        Gravity

                      	 
      	
                        State

                        Lease

                      
	
                        130313

                      	 
      	 
      	 
      	
                        BAUMANN  E
      #1

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        037859

                      
	
                        547683

                      	 
      	 
      	 
      	
                        BIRDWELL

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        029458

                      
	
                        549900

                      	 
      	
                        (39)

                      	 
      	
                        BIRKHEAD

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        5691

                      
	
                        549915

                      	 
      	
                        (39)

                      	 
      	
                        BIRKHEAD
      A

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        5691

                      
	
                        135044

                      	 
      	 
      	 
      	
                        BONNIE
      JONES

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        037763

                      
	
                        547927

                      	 
      	 
      	 
      	
                        BOONE

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        023633

                      
	
                        548736

                      	 
      	 
      	 
      	
                        BOONE
      A

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        032175

                      
	
                        549310

                      	 
      	 
      	 
      	
                        BOONE
      C

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        032550

                      
	
                        549402

                      	 
      	 
      	 
      	
                        BOONE
      D

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        032868

                      
	
                        546939

                      	 
      	 
      	 
      	
                        BOONE
      G

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        006477

                      
	
                        104457

                      	 
      	 
      	 
      	
                        BRADFORD
      22

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        036398

                      
	
                        547874

                      	 
      	 
      	 
      	
                        BRIDGEWATER
      A

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        032134

                      
	
                        551343

                      	 
      	 
      	 
      	
                        BRIDGEWATER
      A #3

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        032134

                      
	
                        200396

                      	 
      	 
      	 
      	
                        BROOKS
      #1

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        0373339

                      
	
                        123264

                      	 
      	
                        (82)

                      	 
      	
                        BROOKS
      A

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        5771

                      
	
                        130334

                      	 
      	
                        (82)

                      	 
      	
                        BROOKS
      B

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        5771

                      
	
                        130351

                      	 
      	
                        (82)

                      	 
      	
                        BROOKS
      C

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        5771

                      
	
                        130352

                      	 
      	
                        (82)

                      	 
      	
                        BROOKS
      D

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        5771

                      
	
                        139507

                      	 
      	 
      	 
      	
                        BROUGHTON
      #1

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        037884

                      
	
                        548438

                      	 
      	 
      	 
      	
                        BRUNSON
      A

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        030911

                      
	
                        548748

                      	 
      	 
      	 
      	
                        BRUNSON
      C

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        032147

                      
	
                        549243

                      	 
      	 
      	 
      	
                        BRUNSON
      D

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        032464

                      
	
                        549327

                      	 
      	 
      	 
      	
                        BRUNSON
      E

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        032558

                      
	
                        550363

                      	 
      	 
      	 
      	
                        BRUNSON
      F

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        032850

                      
	
                        549678

                      	 
      	 
      	 
      	
                        BRUNSON
      G

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        032874

                      
	
                        161700

                      	 
      	 
      	 
      	
                        BURKE
      #1

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        037364

                      
	
                        546940

                      	 
      	 
      	 
      	
                        C A
      MCCLINTIC A-31

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        006283

                      
	
                        096339

                      	 
      	 
      	 
      	
                        CAIN
      A

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        022408

                      
	
                        548802

                      	 
      	
                        (9)

                      	 
      	
                        CASBEER

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        5681

                      
	
                        547688

                      	 
      	
                        (80)

                      	 
      	
                        CASS

                      	 
      	
                        PIONEER
      NATURAL RES USA

                      	 
      	
                        IN
      MIDLAND

                      	 
      	
                        TX

                      	 
      	
                        X1585

                      	 
      	
                        EDQ

                      	 
      	
                        ($0.7000)

                      	 
      	
                        $0.0000

                      	 
      	
                        100.00000%

                      	 
      	
                        Flat

                      	 
      	
                        5948

                      


              

              



              
                
                   


                

                
                   


                  
                    

                  

                

                
                   


                

              


              Exhibit
"A"

               

              Sep
04, 2009

              Page
14 of 31

              


              
                	
                        Plains
      Contract:

                      	 	
                        2582-1014

                      	 	
                        Effective:
      09-01-2009

                      	 	
                        Plains
      Marketing L.P.

                      	 
      


              

               

              
                
                  	
                          PM

                          Lease

                          ‡=
      inact

                        	 
      	 
      	 
      	
                          Lease

                        	 
      	
                          Operator

                        	 
      	
                          County/Parish

                        	 
      	 
      	 
      	
                          Price

                        	 
      	
                          Price
      Method

                        	 
      	
                          Applicable

                          Premium

                          Or

                          (Deduct)

                        	 
      	
                          Fuel

                          Adjust

                        	 
      	
                          Percent

                        	 
      	
                          Gravity

                        	 
      	
                          State

                          Lease

                        
	
                          154020

                        	 
      	
                          (80)

                        	 
      	
                          CASS
      A

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          5948

                        
	
                          154218

                        	 
      	
                          (80)

                        	 
      	
                          CASS
      B-1

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          5948

                        
	
                          548803

                        	 
      	
                          (9)

                        	 
      	
                          CATHEY
      1

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          5861

                        
	
                          106973

                        	 
      	
                          (9)

                        	 
      	
                          CATHEY
      2

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          5861

                        
	
                          548278

                        	 
      	 
      	 
      	
                          COLLINS

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          027710

                        
	
                          548329

                        	 
      	 
      	 
      	
                          COLLINS
      A

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          028445

                        
	
                          548931

                        	 
      	 
      	 
      	
                          COLLINS
      B

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          032236

                        
	
                          548850

                        	 
      	 
      	 
      	
                          COLLINS
      D

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          032529

                        
	
                          139677

                        	 
      	 
      	 
      	
                          COON
      2

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          035059

                        
	
                          123402

                        	 
      	 
      	 
      	
                          CORNELL

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          034618

                        
	
                          119294

                        	 
      	
                          (40)

                        	 
      	
                          COUNTISS
      1 & 2

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          5692

                        
	
                          548711

                        	 
      	 
      	 
      	
                          COUNTISS
      3 & 4

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          5692

                        
	
                          135153

                        	 
      	 
      	 
      	
                          COWDEN
      32

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          024030

                        
	
                          135155

                        	 
      	 
      	 
      	
                          COWDEN
      40

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          032528

                        
	
                          135158

                        	 
      	 
      	 
      	
                          COWDEN
      40 B

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          023981

                        
	
                          552948

                        	 
      	 
      	 
      	
                          COWDEN
      'C'

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          5989

                        
	
                          109718

                        	 
      	 
      	 
      	
                          COWDEN
      E

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          035629

                        
	
                          553398

                        	 
      	 
      	 
      	
                          COWDEN
      F

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          035411

                        
	
                          548252

                        	 
      	 
      	 
      	
                          CRAWFORD

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          026805

                        
	
                          139707

                        	 
      	 
      	 
      	
                          CRAWFORD
      AA #1

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          038051

                        
	
                          547534

                        	
                        	
                          (19)

                        	 
      	
                          CRAWFORD
      B

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          5671

                        
	
                          548368‡

                        	 
      	 
      	 
      	
                          CUNNINGHAM

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          029329

                        
	
                          549331‡

                        	 
      	 
      	 
      	
                          CUNNINGHAM
      A

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          032582

                        
	
                          554389‡

                        	 
      	 
      	 
      	
                          CUNNINGHAM
      'D' #1

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          032582

                        
	
                          123441

                        	 
      	 
      	 
      	
                          DAMERON
      #1

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          037470

                        
	
                          549901

                        	
                        	
                          (40)

                        	 
      	
                          DAVIS
      28 #1

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          5892

                        
	
                          119295

                        	
                        	
                          (40)

                        	 
      	
                          DAVIS
      28 #2

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          5892

                        
	
                          123304

                        	 
      	 
      	 
      	
                          DAWSON
      #1

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          037454

                        
	
                          548589

                        	 
      	
                           

                        	 
      	
                          DEAVENPORT

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          031634

                        
	
                          5488821

                        	 
      	
                           

                        	 
      	
                          DEAVENPORT
      A

                        	 
      	
                          PIONEER
      NATURAL RES USA

                        	 
      	
                          IN
      MIDLAND

                        	 
      	
                          TX

                        	 
      	
                          X1585

                        	 
      	
                          EDQ

                        	 
      	
                          ($0.7000)

                        	 
      	
                          $0.0000

                        	 
      	
                          100.00000%

                        	 
      	
                          Flat

                        	 
      	
                          031748

                        


                

              

            

             

            
              
                 


              

              
                 


                
                  

                

              

              
                 


              

            


            Exhibit
"A"

            


            Sep
04, 2009

            Page
15 of 31

            


            
              	
                      Plains
      Contract:

                    	
                      2582-1014

                    	
                      Effective:
      09-01-2009

                    	 
      	
                      Plains
      Marketing L.P.

                    


            

            


            
              	
                      PM

                      Lease

                      ‡=inact

                    	 
      	 
      	 
      	
                      Lease

                    	 
      	
                      Operator

                    	 
      	
                      County/Parish

                    	 
      	 
      	 
      	
                      Price

                    	 
      	
                      Price
      Method

                    	 
      	
                      Applicable

                      Premium

                      Or

                      (Deduct)

                    	 
      	
                      Fuel

                      Adjust

                    	 
      	
                      Percent

                    	 
      	
                      Gravity

                    	 	
                      State

                      Lease

                    
	
                      548401

                    	 
      	 
      	 
      	
                      DIXON

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      030259

                    
	
                      135457

                    	 
      	 
      	 
      	
                      DONELSON
      #2

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      037883

                    
	
                      550780

                    	 
      	 
      	 
      	
                      DUNN
      #2

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      033957

                    
	
                      550301

                    	 
      	 
      	 
      	
                      DWIGHT

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      033323

                    
	
                      550500

                    	 
      	 
      	 
      	
                      DWIGHT
      A

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      033456

                    
	
                      548037

                    	 
      	 
      	 
      	
                      EDDY

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      030280

                    
	
                      548285

                    	 
      	
                      (30)

                    	 
      	
                      EDWARDS

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      5677

                    
	
                      548511

                    	 
      	
                      (30)

                    	 
      	
                      EDWARDS
      A

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      5677

                    
	
                      548367

                    	 
      	
                      (17)

                    	 
      	
                      ELKIN
      A

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      4629

                    
	
                      550510

                    	 
      	
                      (13)

                    	 
      	
                      ELKIN
      B

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      5637

                    
	
                      548500

                    	 
      	
                      (17)

                    	 
      	
                      ELKIN
      C

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      4629

                    
	
                      119104

                    	 
      	
                      (17)

                    	 
      	
                      ELKIN
      D

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      4629

                    
	
                      119103

                    	 
      	
                      (17)

                    	 
      	
                      ELKIN
      E

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      4629

                    
	
                      546562

                    	 
      	 
      	 
      	
                      ELKIN
      H

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031578

                    
	
                      548563

                    	 
      	 
      	 
      	
                      ELKIN
      I

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031585

                    
	
                      547700

                    	 
      	 
      	 
      	
                      ELKIN
      L

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      032122

                    
	
                      549679

                    	 
      	
                      (38)

                    	 
      	
                      ELKIN
      N

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      5689

                    
	
                      549713

                    	 
      	
                      (38)

                    	 
      	
                      ELKIN
      O

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      5689

                    
	
                      549899

                    	 
      	 
      	 
      	
                      ELKIN
      P

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      033018

                    
	
                      550027

                    	 
      	
                      (14)

                    	 
      	
                      ELKIN
      Q

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      5641

                    
	
                      550047

                    	 
      	
                      (13)

                    	 
      	
                      ELKIN
      R

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      5637

                    
	
                      546714

                    	 
      	
                      (25)

                    	 
      	
                      ERNEST

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      5660

                    
	
                      548715

                    	 
      	
                      (25)

                    	 
      	
                      ERNEST
      A

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      5660

                    
	
                      548414

                    	 
      	 
      	 
      	
                      ERWIN

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      030329

                    
	
                      139944

                    	 
      	
                      (52)

                    	 
      	
                      ERWIN
      G#10 (D)

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      022421

                    
	
                      139975

                    	 
      	
                      (52)

                    	 
      	
                      ERWIN
      G#10 (W)

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      022421

                    
	
                      003201

                    	 
      	
                      (52)

                    	 
      	
                      ERWIN
      G#3

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      022421

                    
	
                      139796

                    	 
      	
                      (52)

                    	 
      	
                      ERWIN
      G#7 (D)

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      022421

                    
	
                      139831

                    	 
      	
                      (52)

                    	 
      	
                      ERWIN
      G#7 (D)

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      022421

                    
	
                      139797

                    	 
      	
                      (52)

                    	 
      	
                      ERWIN
      G#8 (D)

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      022421

                    


            


            
              
                 


              

              
                 


                
                  

                

              

              
                 


              

            


            Exhibit
"A"

            


            Sep
04, 2009

            Page
16 of 31

            


            
              	
                      Plains
      Contract:

                    	
                      2582-1014

                    	
                      Effective:
      09-01-2009

                    	 
      	
                      Plains
      Marketing L.P.

                    


            

            


            
              	
                      PM

                      Lease

                      ‡=inact

                    	 
      	 
      	 
      	
                      Lease

                    	 
      	
                      Operator

                    	 
      	
                      County/Parish

                    	 
      	 
      	 
      	
                      Price

                    	 
      	
                      Price
      Method

                    	 
      	
                      Applicable

                      Premium

                      Or

                      (Deduct)

                    	 
      	
                      Fuel

                      Adjust

                    	 
      	
                      Percent

                    	 
      	
                      Gravity

                    	 	
                      State

                      Lease

                    
	
                      139832

                    	 
      	
                      (52)

                    	 
      	
                      ERWIN
      G #8 (W)

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      022421

                    
	
                      139798

                    	 
      	
                      (52)

                    	 
      	
                      ERWIN
      G #9 (D)

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      022421

                    
	
                      139974

                    	 
      	
                      (52)

                    	 
      	
                      ERWIN
      G #9 (W)

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      022421

                    
	
                      548863

                    	 
      	 
      	 
      	
                      ERWIN
      A

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      025664

                    
	
                      142169

                    	 
      	
                      (53)

                    	 
      	
                      ERWIN
      C #3

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031954

                    
	
                      139563

                    	 
      	
                      (53)

                    	 
      	
                      ERWIN
      C #5

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031954

                    
	
                      139684

                    	 
      	
                      (53)

                    	 
      	
                      ERWIN
      C #9

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031954

                    
	
                      548716

                    	 
      	
                      (53)

                    	 
      	
                      ERWIN
      C#1

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031954

                    
	
                      130122

                    	 
      	
                      (53)

                    	 
      	
                      ERWIN
      C#2

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031954

                    
	
                      130440

                    	 
      	
                      (53)

                    	 
      	
                      ERWIN
      C#4

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031954

                    
	
                      548739

                    	 
      	 
      	 
      	
                      ERWIN
      D

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      032078

                    
	
                      549932

                    	 
      	 
      	 
      	
                      ERWIN
      F

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      033047

                    
	
                      126523

                    	 
      	
                      (52)

                    	 
      	
                      ERWIN
      G#4 (D)

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      022421

                    
	
                      139997

                    	 
      	
                      (52)

                    	 
      	
                      ERWIN
      C #1 (W)

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      022421

                    
	
                      139998

                    	 
      	
                      (52)

                    	 
      	
                      ERWIN
      G #5 (D)

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      022421

                    
	
                      128524

                    	 
      	
                      (52)

                    	 
      	
                      ERWIN
      G #5 (W)

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      022421

                    
	
                      130163

                    	 
      	 
      	 
      	
                      ERWIN
      H

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      037757

                    
	
                      130262

                    	 
      	 
      	 
      	
                      ERWIN
      J #1

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      037690

                    
	
                      130165

                    	 
      	 
      	 
      	
                      ERWIN
      K 11

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      037609

                    
	
                      548560

                    	 
      	 
      	 
      	
                      ESTES
      D

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031523

                    
	
                      552441

                    	 
      	 
      	 
      	
                      EVANGELINE
      'A' 1&2

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      034450

                    
	
                      548331

                    	 
      	 
      	 
      	
                      EVANS

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      028578

                    
	
                      548368

                    	 
      	 
      	 
      	
                      EVANS
      A

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      029371

                    
	
                      548371

                    	 
      	 
      	 
      	
                      EVANS
      D

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      029709

                    
	
                      097879

                    	 
      	
                      (1)

                    	 
      	
                      FASKEN

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      022051

                    
	
                      097680

                    	 
      	
                      (1)

                    	 
      	
                      FASKEN
      8&9

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      022051

                    
	
                      548377

                    	 
      	 
      	 
      	
                      FASKEN
      PHILLIPS

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      029614

                    
	
                      139636

                    	 
      	 
      	 
      	
                      FASKEN
      R

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      030983

                    
	
                      548512

                    	 
      	 
      	 
      	
                      FASKEN
      S

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031164

                    
	
                      548820

                    	 
      	 
      	 
      	
                      FASKEN
      STATE

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031622

                    


            


            
              
                 


              

              
                 


                
                  

                

              

              
                 


              

            


            Exhibit
"A"

            


            Sep
04, 2009

            Page
17 of 31

            


            
              	
                      Plains
      Contract:

                    	
                      2582-1014

                    	
                      Effective:
      09-01-2009

                    	 
      	
                      Plains
      Marketing L.P.

                    


            

            


            
              	
                      PM

                      Lease

                      ‡=inact

                    	 
      	 
      	 
      	
                      Lease

                    	 
      	
                      Operator

                    	 
      	
                      County/Parish

                    	 
      	 
      	 
      	
                      Price

                    	 
      	
                      Price
      Method

                    	 
      	
                      Applicable

                      Premium

                      Or

                      (Deduct)

                    	 
      	
                      Fuel

                      Adjust

                    	 
      	
                      Percent

                    	 
      	
                      Gravity

                    	 	
                      State

                      Lease

                    
	
                      548513

                    	 
      	 
      	 
      	
                      FASKEN
      T

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031151

                    
	
                      550277

                    	 
      	 
      	 
      	
                      FASKEN
      T #2

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031151

                    
	
                      547676

                    	 
      	 
      	 
      	
                      FASKEN
      X

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      028880

                    
	
                      548622

                    	 
      	 
      	 
      	
                      FASKEN
      Y

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031632

                    
	
                      130306

                    	 
      	 
      	 
      	
                      FELDMAN
      #1

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      037627

                    
	
                      096352

                    	 
      	 
      	 
      	
                      FISCHER
      "10"

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      022415

                    
	
                      548239

                    	 
      	 
      	 
      	
                      FLOYD

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      030156

                    
	
                      548751

                    	 
      	 
      	 
      	
                      FLOYD
      B

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      032144

                    
	
                      549989

                    	 
      	 
      	 
      	
                      FLOYD
      C

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      033133

                    
	
                      550065

                    	 
      	 
      	 
      	
                      FLOYD
      D

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      033165

                    
	
                      548288

                    	 
      	 
      	 
      	
                      FRANKLIN

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      027925

                    
	
                      551926

                    	 
      	 
      	 
      	
                      FRANKLIN
      B

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      030633

                    
	
                      548718

                    	 
      	
                      (81)

                    	 
      	
                      FRAZIER
      A

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031953

                    
	
                      154250

                    	 
      	
                      (81)

                    	 
      	
                      FRAZIER
      A #2

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031953

                    
	
                      548035

                    	 
      	
                      (84)

                    	 
      	
                      FRED

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      67.590000%

                    	 
      	
                      Flat

                    	 	
                      6013

                    
	
                      548343

                    	 
      	 
      	 
      	
                      G D
      LOBLEY #1 & #2

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      028899

                    
	
                      548253

                    	 
      	 
      	 
      	
                      GARRETT

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      026918

                    
	
                      548335

                    	 
      	 
      	 
      	
                      HALE
      A

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      028811

                    
	
                      130378

                    	 
      	 
      	 
      	
                      HALFF
      10 #1

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      037692

                    
	
                      548565

                    	 
      	 
      	 
      	
                      HANKS
      A

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031562

                    
	
                      120719

                    	 
      	 
      	 
      	
                      HEIDLEBERG#1

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      022635

                    
	
                      549442

                    	 
      	
                      (42)

                    	 
      	
                      HERD

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      6694

                    
	
                      135157

                    	 
      	 
      	 
      	
                      HERD-MIDKIFF
      A

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      024703

                    
	
                      549837

                    	 
      	 
      	 
      	
                      HILL
      A

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      033063

                    
	
                      525478

                    	 
      	 
      	 
      	
                      HOFFERKAMP

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      030929

                    
	
                      548379

                    	 
      	 
      	 
      	
                      HOGAN
      PARK

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      029612

                    
	
                      548566

                    	 
      	 
      	 
      	
                      HOLIMAN

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031647

                    
	
                      548567

                    	 
      	 
      	 
      	
                      HOLIMAN
      A

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031660

                    
	
                      549242

                    	 
      	 
      	 
      	
                      HOLZGRAF

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      032485

                    
	
                      549455

                    	 
      	 
      	 
      	
                      HOLZGRAF
      A-1

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      032658

                    


            

             

            
              
                 


              

              
                 


                
                  

                

              

              
                 


              

            


            Exhibit
"A"

            


            Sep
04, 2009

            Page
18 of 31

            


            
              	
                      Plains
      Contract:

                    	
                      2582-1014

                    	
                      Effective:
      09-01-2009

                    	 
      	
                      Plains
      Marketing L.P.

                    


            

            


            
              	
                      PM

                      Lease

                      ‡=inact

                    	 
      	 
      	 
      	
                      Lease

                    	 
      	
                      Operator

                    	 
      	
                      County/Parish

                    	 
      	 
      	 
      	
                      Price

                    	 
      	
                      Price
      Method

                    	 
      	
                      Applicable

                      Premium

                      Or

                      (Deduct)

                    	 
      	
                      Fuel

                      Adjust

                    	 
      	
                      Percent

                    	 
      	
                      Gravity

                    	 	
                      State

                      Lease

                    
	
                      548443

                    	 
      	 
      	 
      	
                      HOOPER

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      030942

                    
	
                      135348

                    	 
      	 
      	 
      	
                      HOOPER
      39#1

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      037872

                    
	
                      548568

                    	 
      	 
      	 
      	
                      HOOPER
      A-

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031411

                    
	
                      548288

                    	 
      	 
      	 
      	
                      HOUPT

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      027857

                    
	
                      548426

                    	 
      	 
      	 
      	
                      HUNTER

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      030381

                    
	
                      548404

                    	 
      	
                      (20)

                    	 
      	
                      HUNTER
      A

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      5670

                    
	
                      548519

                    	 
      	
                      (20)

                    	 
      	
                      HUNTER
      B

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      5670

                    
	
                      550507

                    	 
      	
                      (15)

                    	 
      	
                      IRVIN
      A

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      5640

                    
	
                      548521

                    	 
      	 
      	 
      	
                      JONES
      A

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031085

                    
	
                      546833

                    	 
      	 
      	 
      	
                      JUNKINS
      'A'

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      027761

                    
	
                      130297

                    	 
      	 
      	 
      	
                      KENDRICK
      #1

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      037711

                    
	
                      100585

                    	 
      	 
      	 
      	
                      KING
      C #1

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      033118

                    
	
                      025100

                    	 
      	
                      (7)

                    	 
      	
                      KING
      D

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      6490

                    
	
                      084320

                    	 
      	
                      (7)

                    	 
      	
                      KING
      E

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      6490

                    
	
                      547698

                    	 
      	
                      (31)

                    	 
      	
                      KLAPPROTH

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      5678

                    
	
                      547899

                    	 
      	
                      (31)

                    	 
      	
                      KLAPPROTH
      'A'

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      5678

                    
	
                      547715

                    	 
      	
                      (35)

                    	 
      	
                      KOONCE
      B

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      5682

                    
	
                      549707

                    	 
      	
                      (35)

                    	 
      	
                      KOONCE
      C

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      5682

                    
	
                      130236

                    	 
      	 
      	 
      	
                      LAWSON
      A #8

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      037641

                    
	
                      548381

                    	 
      	 
      	 
      	
                      LEONA

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      029221

                    
	
                      648477

                    	 
      	 
      	 
      	
                      LEONA
      A

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      030984

                    
	
                      547717

                    	 
      	 
      	 
      	
                      LOCKLAR

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      039347

                    
	
                      648604

                    	 
      	 
      	 
      	
                      LOCKLAR
      A

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031669

                    
	
                      548610

                    	 
      	
                      (18)

                    	 
      	
                      LOGAN

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      031616

                    
	
                      552206

                    	 
      	
                      (18)

                    	 
      	
                      LOGAN
      #2

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      032616

                    
	
                      548720

                    	 
      	 
      	 
      	
                      LOGAN
      A

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      032005

                    
	
                      547720

                    	 
      	
                      (12)

                    	 
      	
                      LOGAN
      B

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      5639

                    
	
                      549385

                    	 
      	
                      (12)

                    	 
      	
                      LOGAN
      C

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      5639

                    
	
                      549817

                    	 
      	
                      (14)

                    	 
      	
                      LOGAN
      D

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      5641

                    
	
                      547697

                    	 
      	 
      	 
      	
                      LONG

                    	 
      	
                      PIONEER
      NATURAL RES USA

                    	 
      	
                      IN
      MIDLAND

                    	 
      	
                      TX

                    	 
      	
                      X1585

                    	 
      	
                      EDQ

                    	 
      	
                      ($0.7000)

                    	 
      	
                      $0.0000

                    	 
      	
                      100.00000%

                    	 
      	
                      Flat

                    	 	
                      030328

                    


            

             

          

          
            
               


            

            
               


              
                

              

            

            
               


            

          


          Exhibit
"A"

          


          Sep
04, 2009

          Page
19 of 31

          


          
            	
                    Plains
      Contract:

                  	 	
                    2582-1014

                  	 	
                    Effective:
      09-01-2009

                  	 	
                    Plains
      Marketing L.P.

                  	 
      


          

          


          
            	
                    PM

                    Lease

                    ‡=inact

                  	 
      	 
      	 
      	
                    Lease

                  	 
      	
                    Operator

                  	 
      	
                    County/Parish

                  	 
      	 
      	 
      	
                    Price

                  	 
      	
                    Price
      Method

                  	 
      	
                    Applicable

                    Premium

                    Or

                    (Deduct)

                  	 
      	
                    Fuel

                    Adjust

                  	 
      	
                    Percent

                  	 
      	
                    Gravity

                  	 	
                    State

                    Lease

                  
	
                    547718

                  	 
      	 
      	 
      	
                    LONG
      A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    030305

                  
	
                    548524

                  	 
      	 
      	 
      	
                    LONG
      C

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    031100

                  
	
                    548344

                  	 
      	 
      	 
      	
                    MABEE
      A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    028945

                  
	
                    548428

                  	 
      	 
      	 
      	
                    MABEE
      C

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    030386

                  
	
                    548525

                  	 
      	 
      	 
      	
                    MABEE
      D

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    031077

                  
	
                    084488

                  	 
      	
                    (85)

                  	 
      	
                    MABEE
      E

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    50.00000%

                  	 
      	
                    Flat

                  	 	
                    4623

                  
	
                    072743

                  	 
      	
                    (6)

                  	 
      	
                    MABEE
      FOUNDATION

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    8034

                  
	
                    064313

                  	 
      	
                    (6)

                  	 
      	
                    MABEE
      FOUNDATION D

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    8034

                  
	
                    548847

                  	 
      	 
      	 
      	
                    MABEE
      FOUNDATION E

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    026520

                  
	
                    135395

                  	 
      	 
      	 
      	
                    MADRID
      #1

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    037880

                  
	
                    547719

                  	 
      	 
      	 
      	
                    MARCO

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    029106

                  
	
                    550307

                  	 
      	 
      	 
      	
                    MASHBURN

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    033322

                  
	
                    548405

                  	 
      	
                    (21)

                  	 
      	
                    MATHEWS

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    5668

                  
	
                    548406

                  	 
      	 
      	 
      	
                    MCCLINTIC

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    030256

                  
	
                    548407

                  	 
      	 
      	 
      	
                    MCCLINTIC
      A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    030284

                  
	
                    552199

                  	 
      	 
      	 
      	
                    MCCLINTIC
      "K"

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    034337

                  
	
                    548433

                  	 
      	
                    (19)

                  	 
      	
                    MCCLURG

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    5871

                  
	
                    109538

                  	 
      	 
      	 
      	
                    MCCLURG
      A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    031326

                  
	
                    548623

                  	 
      	
                    (20)

                  	 
      	
                    MCLURG
      B

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    5670

                  
	
                    548347

                  	 
      	
                    (42)

                  	 
      	
                    MIDKIFF

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    5694

                  
	
                    553246

                  	 
      	 
      	 
      	
                    MIDKIFF
      �43� #7

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    035321

                  
	
                    547721

                  	 
      	 
      	 
      	
                    MIDKIFF
      A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    028698

                  
	
                    109711

                  	 
      	 
      	 
      	
                    MIDKIFF
      ESTATE

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    031389

                  
	
                    547722

                  	 
      	 
      	 
      	
                    MIDKIFF
      G

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    032135

                  
	
                    549366

                  	 
      	 
      	 
      	
                    MIDKIFF
      I

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    032843

                  
	
                    549623

                  	 
      	 
      	 
      	
                    MIDKIFF
      J

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    032856

                  
	
                    549803

                  	 
      	 
      	 
      	
                    MIDKIFF
      L

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    032932

                  
	
                    548269

                  	 
      	 
      	 
      	
                    MILES

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    027903

                  
	
                    548291

                  	 
      	 
      	 
      	
                    MILES
      A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    027904

                  
	
                    548348

                  	 
      	
                    (34)

                  	 
      	
                    MILES
      B

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    5661

                  


          


          
            
               


            

            
               


              
                

              

            

            
               


            

          


          Exhibit
"A"

          


          Sep
04, 2009

          Page
20 of 31

          


          
            	
                    Plains
      Contract:

                  	 	
                    2582-1014

                  	 	
                    Effective:
      09-01-2009

                  	 	
                    Plains
      Marketing L.P.

                  	 
      


          

          


          
            	
                    PM

                    Lease

                    ‡=inact

                  	 
      	 
      	 
      	
                    Lease

                  	 
      	
                    Operator

                  	 
      	
                    County/Parish

                  	 
      	 
      	 
      	
                    Price

                  	 
      	
                    Price
      Method

                  	 
      	
                    Applicable

                    Premium

                    Or

                    (Deduct)

                  	 
      	
                    Fuel

                    Adjust

                  	 
      	
                    Percent

                  	 
      	
                    Gravity

                  	 	
                    State

                    Lease

                  
	
                    548445

                  	 
      	
                    (34)

                  	 
      	
                    MILES
      D

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    5681

                  
	
                    548446

                  	 
      	 
      	 
      	
                    MILES
      E

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    030879

                  
	
                    549956

                  	 
      	 
      	 
      	
                    MILES
      F

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    033072

                  
	
                    548538

                  	 
      	
                    (41)

                  	 
      	
                    MILLIKEN

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    5893

                  
	
                    549384

                  	 
      	
                    (41)

                  	 
      	
                    MILLIKEN
      A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    5893

                  
	
                    549011

                  	 
      	 
      	 
      	
                    MILLIKEN
      B

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    032657

                  
	
                    549708

                  	 
      	 
      	 
      	
                    MILLIKEN
      C

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    032895

                  
	
                    549684

                  	 
      	 
      	 
      	
                    MILLIKEN
      D

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    032881

                  
	
                    549815

                  	 
      	 
      	 
      	
                    MILLIKEN
      E

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    032946

                  
	
                    097840

                  	 
      	
                    (2)

                  	 
      	
                    MRS.
      WILLIE FISHER #1

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    023151

                  
	
                    097841

                  	 
      	
                    (2)

                  	 
      	
                    MRS.
      WILLIE FISHER #2

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    023151

                  
	
                    139615

                  	 
      	 
      	 
      	
                    MURRAY

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    027039

                  
	
                    081433

                  	 
      	 
      	 
      	
                    MURRAY
      "B"

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    027909

                  
	
                    093536

                  	 
      	 
      	 
      	
                    MURRAY
      G" #1

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    030862

                  
	
                    076657

                  	 
      	 
      	 
      	
                    MURRAY
      A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    027038

                  
	
                    548305

                  	 
      	 
      	 
      	
                    MURRAY
      C

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    028419

                  
	
                    139616

                  	 
      	 
      	 
      	
                    MURRAY
      D

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    028511

                  
	
                    139617

                  	 
      	 
      	 
      	
                    MURRAY
      E

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    029494

                  
	
                    548385

                  	 
      	 
      	 
      	
                    MURRAY
      F

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    029181

                  
	
                    548255

                  	 
      	 
      	 
      	
                    MUSIC

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    026810

                  
	
                    548573

                  	 
      	 
      	 
      	
                    MUSIC
      A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    031634

                  
	
                    551815

                  	 
      	
                    (16)

                  	 
      	
                    MYRTLE
      #1

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    5638

                  
	
                    114786

                  	 
      	
                    (13)

                  	 
      	
                    MYRTLE
      A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    5637

                  
	
                    114787

                  	 
      	
                    (16)

                  	 
      	
                    MYRTLE
      B

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    5638

                  
	
                    114788

                  	 
      	
                    (15)

                  	 
      	
                    MYRTLE
      C

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    5640

                  
	
                    114789

                  	 
      	
                    (16)

                  	 
      	
                    MYRTLE
      D

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    5640

                  
	
                    548387

                  	 
      	
                    (22)

                  	 
      	
                    NELSON

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    5667

                  
	
                    548434

                  	 
      	
                    (22)

                  	 
      	
                    NELSON
      B

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    5667

                  
	
                    548388

                  	 
      	 
      	 
      	
                    NEWSOM

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    029260

                  
	
                    123330

                  	 
      	 
      	 
      	
                    NICHOLS

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    037460

                  


          

           

          
            
               


            

            
               


              
                

              

            

            
               


            

          


          Exhibit
"A"

          


          Sep
04, 2009

          Page
21 of 31

          


          
            	
                    Plains
      Contract:

                  	 	
                    2582-1014

                  	 	
                    Effective:
      09-01-2009

                  	 	
                    Plains
      Marketing L.P.

                  	 
      


          

          


          
            	
                    PM

                    Lease

                    ‡=inact

                  	 
      	 
      	 
      	
                    Lease

                  	 
      	
                    Operator

                  	 
      	
                    County/Parish

                  	 
      	 
      	 
      	
                    Price

                  	 
      	
                    Price
      Method

                  	 
      	
                    Applicable

                    Premium

                    Or

                    (Deduct)

                  	 
      	
                    Fuel

                    Adjust

                  	 
      	
                    Percent

                  	 
      	
                    Gravity

                  	 	
                    State

                    Lease

                  
	
                    548354

                  	 
      	 
      	 
      	
                    OLDHAM
      C

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    029044

                  
	
                    548578

                  	 
      	 
      	 
      	
                    OVAL

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    031421

                  
	
                    550017

                  	 
      	 
      	 
      	
                    OVAL
      #3

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    031421

                  
	
                    546600

                  	 
      	 
      	 
      	
                    OVAL
      A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    031614

                  
	
                    109699

                  	 
      	 
      	 
      	
                    PENROSE-OLDHAM
      #5

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    037659

                  
	
                    548588

                  	 
      	 
      	 
      	
                    PRATT

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    50.00000%

                  	 
      	
                    Flat

                  	 	
                    031648

                  
	
                    548257

                  	 
      	 
      	 
      	
                    RAY

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    026887

                  
	
                    547691

                  	 
      	 
      	 
      	
                    RAY
      -A-

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    031746

                  
	
                    548419

                  	 
      	 
      	 
      	
                    ROBERTS

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    030397

                  
	
                    549105

                  	 
      	 
      	 
      	
                    ROBERTSON
      A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    030850

                  
	
                    548357

                  	 
      	 
      	 
      	
                    ROTAN

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    028642

                  
	
                    548533

                  	 
      	 
      	 
      	
                    ROTAN
      A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    031101

                  
	
                    554385

                  	 
      	 
      	 
      	
                    S
      DRIVER UT TR 1A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    015400

                  
	
                    552669

                  	 
      	 
      	 
      	
                    S
      DRIVER UT TR 25

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    015400

                  
	
                    139618

                  	 
      	
                    (72)

                  	 
      	
                    SCHARBAUER
      32

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    5688

                  
	
                    139619

                  	 
      	
                    (72)

                  	 
      	
                    SCHARBAUER
      32A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    5688

                  
	
                    139620

                  	 
      	
                    (72)

                  	 
      	
                    SCHARBAUER
      32B

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    5688

                  
	
                    547723

                  	 
      	
                    (84)

                  	 
      	
                    SCHARBAUER
      438

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    32.410000%

                  	 
      	
                    Flat

                  	 	
                    6013

                  
	
                    554720

                  	 
      	 
      	 
      	
                    SDU
      128A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    015400

                  
	
                    552856

                  	 
      	 
      	 
      	
                    SDU
      218A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    015400

                  
	
                    100617

                  	 
      	 
      	 
      	
                    SDU
      28A & 29A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    015400

                  
	
                    554573

                  	 
      	 
      	 
      	
                    SDU
      738

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    015400

                  
	
                    548503

                  	 
      	 
      	 
      	
                    SHULL

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    031007

                  
	
                    549241

                  	 
      	 
      	 
      	
                    SHULL
      A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    032487

                  
	
                    548535

                  	 
      	
                    (21)

                  	 
      	
                    SIMMS

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    6888

                  
	
                    123003

                  	 
      	 
      	 
      	
                    SMART#1

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    037377

                  
	
                    114790

                  	 
      	 
      	 
      	
                    SMITH
      B

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    032248

                  
	
                    139543

                  	 
      	 
      	 
      	
                    SNELL
      #3

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    038018

                  
	
                    548409

                  	 
      	 
      	 
      	
                    SNYDER
      E

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    030255

                  
	
                    548781

                  	 
      	
                    (14)

                  	 
      	
                    SORGE

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	
                    5641

                  


          

           

          
            
               


            

            
               


              
                

              

            

            
               


            

          


          Exhibit
"A"

          


          Sep
04, 2009

          Page
22 of 31

          


          
            	
                    Plains
      Contract:

                  	 	
                    2582-1014

                  	 	
                    Effective:
      09-01-2009

                  	 	
                    Plains
      Marketing L.P.

                  	 
      


          

          


          
            	
                    PM

                    Lease

                    ‡=inact

                  	 
      	 
      	 
      	
                    Lease

                  	 
      	
                    Operator

                  	 
      	
                    County/Parish

                  	 
      	 
      	 
      	
                    Price

                  	 
      	
                    Price
      Method

                  	 
      	
                    Applicable

                    Premium

                    Or

                    (Deduct)

                  	 
      	
                    Fuel

                    Adjust

                  	 
      	
                    Percent

                  	 
      	
                    Gravity

                  	 	
                    State

                    Lease

                  
	
                    548594

                  	 
      	 
      	 
      	
                    SORGE
      "A"

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	032507
	
                    200397

                  	 
      	 
      	 
      	
                    SPRINGER
      #1

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	037369
	
                    548587

                  	 
      	 
      	 
      	
                    STANLEY

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	031646
	
                    109703�

                  	 
      	 
      	 
      	
                    STANLEY

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	000000
	
                    135045

                  	 
      	 
      	 
      	
                    STANTON
      A #1

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	037764
	
                    135130

                  	 
      	
                    (66)

                  	 
      	
                    STIMSON
      20 #2

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    50.00000%

                  	 
      	
                    Flat

                  	 	8854
	
                    548504

                  	 
      	 
      	 
      	
                    STIMSON
      A&B

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	4622
	
                    548492

                  	 
      	
                    (66)

                  	 
      	
                    STIMSON
      C

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	5854
	
                    548317

                  	 
      	 
      	 
      	
                    STIMSON-BURLEY
      18

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	028424
	
                    548265

                  	 
      	 
      	 
      	
                    STIMSON-BURLEY
      B

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	027079
	
                    551438

                  	 
      	 
      	 
      	
                    STIMSON-BURLEY
      "B" #4

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	027079
	
                    548422

                  	 
      	 
      	 
      	
                    STIMSON-BURLEY
      H

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	030344
	
                    548423

                  	 
      	 
      	 
      	
                    STIMSON-BURLEY
      I

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	030327
	
                    548506

                  	 
      	 
      	 
      	
                    STIMSON-BURLEY
      M

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	031022
	
                    548320

                  	 
      	
                    (33)

                  	 
      	
                    STOUT
      1

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	5680
	
                    548455

                  	 
      	
                    (33)

                  	 
      	
                    STOUT
      A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	5680
	
                    547994

                  	 
      	 
      	 
      	
                    STUARD

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	029473
	
                    548394

                  	 
      	
                    (26)

                  	 
      	
                    SYLVIA

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	5659
	
                    548540

                  	 
      	
                    (26)

                  	 
      	
                    SYLVIA
      A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	5659
	
                    548581

                  	 
      	 
      	 
      	
                    SYLVIA
      B

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	031645
	
                    549709

                  	 
      	 
      	 
      	
                    SYNATSCHK
      D

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	032901
	
                    548321

                  	 
      	 
      	 
      	
                    TATOM

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	028348
	
                    548322

                  	 
      	
                    (23)

                  	 
      	
                    TATOM
      A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	5666
	
                    548395

                  	 
      	 
      	 
      	
                    TATOM
      B

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	029372
	
                    550012

                  	 
      	 
      	 
      	
                    TATOM
      B #2

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	029372
	
                    548395

                  	 
      	
                    (24)

                  	 
      	
                    TATOM
      C

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	5664
	
                    548457

                  	 
      	 
      	 
      	
                    TATOM
      E

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	030889
	
                    548493

                  	 
      	
                    (24)

                  	 
      	
                    TATOM
      F

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	6664
	
                    548308

                  	 
      	
                    (23)

                  	 
      	
                    TATOM
      G

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	5665
	
                    119068

                  	 
      	
                    (37)

                  	 
      	
                    TEINERT
      A

                  	 
      	
                    PIONEER
      NATURAL RES USA

                  	 
      	
                    IN
      MIDLAND

                  	 
      	
                    TX

                  	 
      	
                    X1585

                  	 
      	
                    EDQ

                  	 
      	
                    ($0.7000)

                  	 
      	
                    $0.0000

                  	 
      	
                    100.00000%

                  	 
      	
                    Flat

                  	 	8991


          

        

         

        
          
             


          

          
             


            
              

            

          

          
             


          

        


        Exhibit
"A"

        


        Sep
04, 2009

        Page
23 of 31

        


        
          	
                  Plains
      Contract:

                	 
      	
                  2582-1014

                	 
      	
                  Effective:
      09-01-2009

                	 
      	
                  Plains
      Marketing L.P.

                


        

        


        
          	
                  PM

                  Lease

                  ‡=inact

                	 
      	 
      	 
      	
                  Lease

                	 
      	
                  Operator

                	 
      	
                  County/Parish

                	 
      	 
      	 
      	
                  Price

                	 
      	
                  Price
      Method

                	 
      	
                  Applicable
      Premium Or (Deduct)

                	 
      	
                  Fuel
      Adjust

                	 
      	
                  Percent

                	 
      	
                  Gravity

                	 
      	
                  State
      Lease

                
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	
                  548557

                	 
      	 
      	 
      	
                  TEINERT
      B

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  031698

                
	
                  547962

                	 
      	 
      	 
      	
                  TEINERT
      C

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  032243

                
	
                  647915

                	 
      	
                  (37)

                	 
      	
                  TEINERT
      D

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  6991

                
	
                  549668

                	 
      	 
      	 
      	
                  TEINERT
      E

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  032875

                
	
                  S48380

                	 
      	
                  (37)

                	 
      	
                  TEINERT
      F

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  6991

                
	
                  120503

                	 
      	 
      	 
      	
                  TEXACO
      FEE

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  166071

                
	
                  548361

                	 
      	 
      	 
      	
                  TILLMAN

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  028713

                
	
                  130043

                	 
      	 
      	 
      	
                  TOBY
      #1

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  037698

                
	
                  548398

                	 
      	
                  (27)

                	 
      	
                  TRACY

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  5658

                
	
                  548410

                	 
      	
                  (27)

                	 
      	
                  TRACY
      A

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  5658

                
	
                  548495

                	 
      	
                  (27)

                	 
      	
                  TRACY
      B

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  5658

                
	
                  114795

                	 
      	 
      	 
      	
                  TREDAWAY

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  032206

                
	
                  117702

                	 
      	 
      	 
      	
                  TSF
      3701

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  037121

                
	
                  546824

                	 
      	
                  (28)

                	 
      	
                  TUBB

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  5657

                
	
                  548829

                	 
      	
                  (28)

                	 
      	
                  TUBB
      A

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  5657

                
	
                  083865

                	 
      	
                  (74)

                	 
      	
                  TURNER
      H-1

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  028564

                
	
                  139621

                	 
      	 
      	 
      	
                  TXL
      H NCT-2

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  008523

                
	
                  553016

                	 
      	 
      	 
      	
                  TXL
      O

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  032235

                
	
                  553014

                	 
      	 
      	 
      	
                  TXL
      P

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  032222

                
	
                  549884

                	 
      	 
      	 
      	
                  TXL
      R

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  033060

                
	
                  549881

                	 
      	 
      	 
      	
                  TXL
      S

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  032988

                
	
                  550893

                	 
      	 
      	 
      	
                  TXL
      T

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  033763

                
	
                  548734

                	 
      	 
      	 
      	
                  ULVESTAD

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  032041

                
	
                  548384

                	 
      	 
      	 
      	
                  VAUGHN

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  031631

                
	
                  548644

                	 
      	
                  (20)

                	 
      	
                  WARD

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  5670

                
	
                  548324

                	 
      	
                  (32)

                	 
      	
                  WATLINGTON

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  5679

                
	
                  548545

                	 
      	
                  (32)

                	 
      	
                  WATLINGTON
      A

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  5679

                
	
                  549480

                	 
      	 
      	 
      	
                  WELLS
      #1

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  032836

                
	
                  550519

                	 
      	 
      	 
      	
                  WESTERFELD

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  033474

                
	
                  518471

                	 
      	 
      	 
      	
                  WHITEFIELD

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  034424

                


        


        
          
             


          

          
             


            
              

            

          

          
             


          

        


        
          Exhibit
"A"

        

        


        Sep
04, 2009

        Page
24 of 31

        


        
          	
                  Plains
      Contract:

                	 
      	
                  2582-1014

                	 
      	
                  Effective:
      09-01-2009

                	 
      	
                  Plains
      Marketing L.P.

                


        

        


        
          	
                  PM

                  Lease

                  ‡=inact

                	 
      	 
      	 
      	
                  Lease

                	 
      	
                  Operator

                	 
      	
                  County/Parish

                	 
      	 
      	 
      	
                  Price

                	 
      	
                  Price
      Method

                	 
      	
                  Applicable
      Premium Or (Deduct)

                	 
      	
                  Fuel
      Adjust

                	 
      	
                  Percent

                	 
      	
                  Gravity

                	 
      	
                  State
      Lease

                
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	
                  550404

                	 
      	 
      	 
      	
                  WILLIS
      G

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  033430

                
	
                  54994

                	 
      	 
      	 
      	
                  WILSON
      A

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  033011

                
	
                  139524

                	 
      	 
      	 
      	
                  WILSON-FANNIE
      39 #4

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  038048

                
	
                  548592

                	 
      	 
      	 
      	
                  WINDHAM
      H

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  031556

                
	
                  548590

                	 
      	 
      	 
      	
                  YATER
      A

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  031642

                
	
                  548855

                	 
      	 
      	 
      	
                  YATER
      B

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      MIDLAND

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  031643

                
	
                  548548

                	 
      	 
      	 
      	
                  ALDWELL

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012347

                
	
                  553015

                	 
      	 
      	 
      	
                  ALDWELL
      'B'

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012363

                
	
                  548044

                	 
      	 
      	 
      	
                  ALDWELL
      C

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012758

                
	
                  548109

                	 
      	 
      	 
      	
                  ALDWELL
      D

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012757

                
	
                  548313

                	 
      	 
      	 
      	
                  ALDWELL
      E

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012776

                
	
                  548477

                	 
      	 
      	 
      	
                  ALDWELL
      F

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012899

                
	
                  551454

                	 
      	 
      	 
      	
                  ALDWELL
      K

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  001300

                
	
                  551794

                	
                   

                	
                  (65)

                	 
      	
                  ALDWELL
      L

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  5378

                
	
                  123417

                	
                   

                	
                  (65)

                	 
      	
                  ALDWELL
      M

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  5378

                
	
                  548435

                	 
      	 
      	 
      	
                  ALEXANDER
      A

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012059

                
	
                  169542

                	 
      	 
      	 
      	
                  ATKINSON,
      W.B. C

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  014077

                
	
                  548275

                	 
      	 
      	 
      	
                  BIRD

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  009836

                
	
                  062992

                	 
      	 
      	 
      	
                  C H
      SUGG B

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  013949

                
	
                  097392

                	 
      	 
      	 
      	
                  C
      MALONE B

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004623

                
	
                  545711

                	 
      	 
      	 
      	
                  CHICO

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  011809

                
	
                  097395

                	 
      	 
      	 
      	
                  CYNTHIA
      MALONE A

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004531

                
	
                  106758

                	 
      	 
      	 
      	
                  ELLA
      "114"

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  014054

                
	
                  064983

                	 
      	 
      	 
      	
                  FRIEND
      ST 30-A UNTT #1

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  011157

                
	
                  064888

                	 
      	 
      	 
      	
                  FRIEND
      ST A #1,2,3,4,5 & 6 

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  011401

                
	
                  548444

                	 
      	 
      	 
      	
                  HUGHES

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012058

                
	
                  548475

                	
                   

                	
                  (8)

                	 
      	
                  HUGHES
      A

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  7782

                
	
                  548475

                	
                   

                	
                  (8)

                	 
      	
                  HUGHES
      B

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  7782

                
	
                  135149

                	 
      	 
      	 
      	
                  KENNETH
      B1 & B2

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  010398

                
	
                  135146

                	
                   

                	
                  (88)

                	 
      	
                  KENNETH
      C

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  5152

                


        


        
          
             


          

          
             


            
              

            

          

          
             


          

        


        
          Exhibit
"A"

        

        


        Sep
04, 2009

        Page
25 of 31

        


        
          	
                  Plains
      Contract:

                	 
      	
                  2582-1014

                	 
      	
                  Effective:
      09-01-2009

                	 
      	
                  Plains
      Marketing L.P.

                


        

        


        
          	
                  PM

                  Lease

                  ‡=inact

                	 
      	 
      	 
      	
                  Lease

                	 
      	
                  Operator

                	 
      	
                  County/Parish

                	 
      	 
      	 
      	
                  Price

                	 
      	
                  Price
      Method

                	 
      	
                  Applicable
      Premium Or (Deduct)

                	 
      	
                  Fuel
      Adjust

                	 
      	
                  Percent

                	 
      	
                  Gravity

                	 
      	
                  State
      Lease

                
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	
                  135147‡

                	 
      	 
      	 
      	
                  KENNETH
      D

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  011952

                
	
                  135148

                	 
      	
                  (68)

                	 
      	
                  KENNETH
      E

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  5152

                
	
                  106755

                	 
      	 
      	 
      	
                  LEONA"166"

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  014053

                
	
                  059808

                	 
      	 
      	 
      	
                  MERCHANT
      138

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  013683

                	 
      	 
      	 
      	
                  MERCHANT
      1404-K

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  059840

                	 
      	 
      	 
      	
                  MERCHANT
      1602N

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  054117

                	 
      	 
      	 
      	
                  MERCHANT
      1904 K

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  059802

                	 
      	 
      	 
      	
                  MERCHANT
      2906 N

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  082488

                	 
      	 
      	 
      	
                  MERCHANT
      3004A

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  013773

                	 
      	 
      	 
      	
                  MERCHANT
      3005K

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  013107

                	 
      	 
      	 
      	
                  MERCHANT
      3218 K & 3219 K

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  087480

                	 
      	 
      	 
      	
                  MERCHANT
      3220-B

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  056701

                	 
      	 
      	 
      	
                  MERCHANT
      3220N

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  059627

                	 
      	 
      	 
      	
                  MERCHANT
      32-21N

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  013770

                	 
      	 
      	 
      	
                  MERCHANT
      3302K

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  013771

                	 
      	 
      	 
      	
                  MERCHANT
      3502K

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  013772

                	 
      	 
      	 
      	
                  MERCHANT
      3602K

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  056667

                	 
      	 
      	 
      	
                  MERCHANT
      4104N

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  013555

                	 
      	 
      	 
      	
                  MERCHANT
      4802K

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  059658

                	 
      	 
      	 
      	
                  MERCHANT
      4N

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  013749

                	 
      	 
      	 
      	
                  MERCHANT
      5702-K

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  055424

                	 
      	 
      	 
      	
                  MERCHANT
      6504 N

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  059761

                	 
      	 
      	 
      	
                  MERCHANT
      TR 1205 N

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  054209

                	 
      	 
      	 
      	
                  MERCHANT
      TR1502K

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  059718

                	 
      	 
      	 
      	
                  MERCHANT
      TR 2002-S

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  059918

                	 
      	 
      	 
      	
                  MERCHANT
      TR2504-N

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  059714

                	 
      	 
      	 
      	
                  MERCHANT
      TR6703-S

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  059715

                	 
      	 
      	 
      	
                  MERCHANT
      TR6902-S

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  058653

                	 
      	 
      	 
      	
                  MERCHANT
      TRACT 4208N

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  114792

                	 
      	 
      	 
      	
                  MERCHANT
      UNIT 4208B

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                


        


        
          
             


          

          
             


            
              

            

          

          
             


          

        


        
          Exhibit
"A"

        

        


        Sep
04, 2009

        Page
26 of 31

        


        
          	
                  Plains
      Contract:

                	 
      	
                  2582-1014

                	 
      	
                  Effective:
      09-01-2009

                	 
      	
                  Plains
      Marketing L.P.

                


        

        


        
          	
                  PM

                  Lease

                  ‡=inact

                	 
      	 
      	 
      	
                  Lease

                	 
      	
                  Operator

                	 
      	
                  County/Parish

                	 
      	 
      	 
      	
                  Price

                	 
      	
                  Price
      Method

                	 
      	
                  Applicable
      Premium Or (Deduct)

                	 
      	
                  Fuel
      Adjust

                	 
      	
                  Percent

                	 
      	
                  Gravity

                	 
      	
                  State
      Lease

                
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	
                  013649

                	 
      	 
      	 
      	
                  MERCHANT
      UNIT 5902K

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  054042

                	 
      	 
      	 
      	
                  MERCHANT
      UNIT TR 66K

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  083559

                	 
      	 
      	 
      	
                  MERCHANT
      UNIT-WELL 205-A

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  083497

                	 
      	 
      	 
      	
                  MERCHANT
      UNIT-WELL 3216-A

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  083498

                	 
      	 
      	 
      	
                  MERCHANT
      UNIT-WELL 3217-A

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  083500

                	 
      	 
      	 
      	
                  MERCHANT
      UNIT-WELL 4206-A

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  013784

                	 
      	 
      	 
      	
                  MERCHANT
      UT 4207K

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  056585

                	 
      	 
      	 
      	
                  MERCHANT
      UT TR 1703N

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  056516

                	 
      	 
      	 
      	
                  MERCHANT
      UT TR 2204N

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  052673

                	 
      	 
      	 
      	
                  MERCHANT
      UT TR 5803 A

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  056618

                	 
      	 
      	 
      	
                  MERCHANTS
      3805N

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  059749

                	 
      	 
      	 
      	
                  MERCHANTS
      TR 2102 S

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  082743

                	 
      	 
      	 
      	
                  MERCHANTS
      TR 67A

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  059709

                	 
      	 
      	 
      	
                  MERCHANTS
      TRACT 1801-S

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  059892

                	 
      	 
      	 
      	
                  MERCHANTS
      TRACT 1905N

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  004426

                
	
                  515336

                	 
      	 
      	 
      	
                  NOELKE
      A

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012120

                
	
                  548574

                	 
      	 
      	 
      	
                  NOELKE
      D

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012279

                
	
                  095919

                	 
      	 
      	 
      	
                  NUNN

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012761

                
	
                  004025

                	 
      	 
      	 
      	
                  NUNN
      A

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012930

                
	
                  114778

                	 
      	 
      	 
      	
                  PROCTOR
      B

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  014108

                
	
                  519752

                	 
      	 
      	 
      	
                  RINGO
      "A"

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012022

                
	
                  554285

                	 
      	 
      	 
      	
                  RINGO
      "B"

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012204

                
	
                  564606

                	 
      	 
      	 
      	
                  RINGO
      "C"

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012266

                
	
                  554744

                	 
      	 
      	 
      	
                  RINGO
      "D"

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012353

                
	
                  554838

                	 
      	 
      	 
      	
                  RINGO
      "E"

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012421

                
	
                  554834

                	 
      	 
      	 
      	
                  RINGO
      "F"

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012422

                
	
                  555052

                	 
      	 
      	 
      	
                  RINGO
      "G"

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012535

                
	
                  555264

                	 
      	 
      	 
      	
                  RINGO
      "H"

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  012811

                
	
                  556749

                	 
      	 
      	 
      	
                  RINGO
      "J"

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  013045

                
	
                  098851

                	 
      	 
      	 
      	
                  ROCKER
      B "B"

                	 
      	
                  PIONEER
      NATURAL RES USA

                	 
      	
                  IN
      REAGAN

                	 
      	
                  TX

                	 
      	
                  X1585

                	 
      	
                  EDQ

                	 
      	
                  ($0.7000)

                	 
      	
                  $0.0000

                	 
      	
                  100.00000%

                	 
      	
                  Flat

                	 
      	
                  008141

                


        

         

      

      
        
           


        

        
           


          
            

          

        

        
           


        

      


      Exhibit
"A"

      


      Sep
04, 2009

      Page
27 of 31

      


      
        	
                Plains
      Contract:

              	 
      	
                2582-1014

              	 
      	
                Effective:
      09-01-2009

              	 
      	
                Plains
      Marketing L.P.

              


      

      


      
        	
                PM

                Lease

                ‡=inact

              	 
      	 
      	 
      	
                Lease

              	 
      	
                Operator

              	 
      	
                County/Parish

              	 
      	 
      	 
      	
                Price

              	 
      	
                Price
      Method

              	 
      	
                Applicable

                Premium

                Or

                (Deduct)

              	 
      	
                Fuel

                Adjust

              	 
      	
                Percent

              	 
      	
                Gravity

              	 	
                State

                Lease

              
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	
                554378

              	 
      	 
      	 
      	
                S
      DRIVER UT TR 168B

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                015400

              
	
                554389

              	 
      	 
      	 
      	
                S
      DRIVER UT TR 180A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                015400

              
	
                553022

              	 
      	 
      	 
      	
                S
      DRIVER UT TR 208A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                015400

              
	
                554315

              	 
      	 
      	 
      	
                S
      DRIVER UT TR 224A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                015400

              
	
                553238

              	 
      	 
      	 
      	
                S
      DRIVER UT TR 231A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                015400

              
	
                130217

              	 
      	 
      	 
      	
                S E
      STOUT

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                015839

              
	
                109712‡

              	 
      	 
      	 
      	
                S E
      STOUT 1

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                001563

              
	
                548490

              	 
      	 
      	 
      	
                STATE
      "K"

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012073

              
	
                064444

              	 
      	 
      	 
      	
                STATE
      "N"

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012529

              
	
                548314

              	 
      	 
      	 
      	
                STATE
      B

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                010342

              
	
                548315

              	 
      	 
      	 
      	
                STATE
      C

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                010366

              
	
                548316

              	 
      	 
      	 
      	
                STATE
      E

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                010483

              
	
                548421

              	 
      	 
      	 
      	
                STATE
      F

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                011743

              
	
                548453

              	 
      	 
      	 
      	
                STATE
      J

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012064

              
	
                548491

              	 
      	 
      	 
      	
                STATE
      L

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012082

              
	
                549802

              	 
      	 
      	 
      	
                STATE
      O

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012963

              
	
                548762

              	 
      	 
      	 
      	
                STATE
      P

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012613

              
	
                548763

              	 
      	 
      	 
      	
                STATE
      Q

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012618

              
	
                548760

              	 
      	 
      	 
      	
                STATE
      R

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012654

              
	
                547912

              	 
      	 
      	 
      	
                STATE
      S

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012747

              
	
                549393†

              	 
      	 
      	 
      	
                STATE
      T

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012894

              
	
                549818

              	 
      	 
      	 
      	
                STATE
      V

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012987

              
	
                551800

              	 
      	 
      	 
      	
                STEVENSON
      A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012377

              
	
                548751

              	 
      	 
      	 
      	
                STEVENSON
      B

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012639

              
	
                128657

              	 
      	 
      	 
      	
                STOUT
      C

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012182

              
	
                548047�

              	 
      	 
      	 
      	
                STOUT
      D

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                202461

              
	
                128656

              	 
      	 
      	 
      	
                STOUT
      F

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012288

              
	
                106757

              	 
      	
                (59)

              	 
      	
                UNIVERSITY
      13

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                82.00000%

              	 
      	
                Flat

              	 	
                5590

              
	
                142231

              	 
      	
                (78)

              	 
      	
                UNIVERSITY
      15

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                0579

              
	
                130255

              	 
      	
                (59)

              	 
      	
                UNIVERSITY
      24 #2

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                82.00000%

              	 
      	
                Flat

              	 	
                5590

              


      

       

      
        
           


        

        
           


          
            

          

        

        
           


        

      


      Exhibit
"A"


       

      Sep
04, 2009

      Page
28 of 31

      


      
        	
                Plains
      Contract:

              	 
      	
                2582-1014

              	 
      	
                Effective:
      09-01-2009

              	 
      	
                Plains
      Marketing L.P.

              


      

      


      
        	
                
                  
                    PM

                    Lease

                    ‡=
      inact

                  

                

              	 
      	 
      	 
      	
                Lease

              	 
      	
                Operator

              	 
      	
                County/Parish

              	 
      	 
      	 
      	
                Price

              	 
      	
                Price
      Method

              	 
      	
                Applicable

                Premium

                Or

                (Deduct)

              	 
      	
                Fuel

                Adjust

              	 
      	
                Percent

              	 
      	
                Gravity

              	 	
                State

                Lease

              
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	
                142232

              	 
      	
                (78)

              	 
      	
                UNIVERSITY
      31

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                0579

              
	
                054308

              	 
      	
                (79)

              	 
      	
                UNIVERSITY
      AA

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                009659

              
	
                142234

              	 
      	
                (78)

              	 
      	
                UNIVERSITY
      WHITE 6

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                0579

              
	
                426702

              	 
      	 
      	 
      	
                WEBSTER

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                001779

              
	
                548547

              	 
      	 
      	 
      	
                WHEELER

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012153

              
	
                549351

              	 
      	 
      	 
      	
                WHEELER
      A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012808

              
	
                548579

              	 
      	 
      	 
      	
                WRIGHT

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      REAGAN

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012388

              
	
                120697‡

              	 
      	 
      	 
      	
                CLARA
      SHOEMAKER SWD #1

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      STATE WIDE

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                000255

              
	
                120753‡

              	 
      	 
      	 
      	
                SALE
      RANCH SWD

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      STATE WIDE

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                000255

              
	
                004558

              	 
      	 
      	 
      	
                A.P.
      HILL

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013046

              
	
                547725

              	 
      	
                (67)

              	 
      	
                CARLETON
      NO. 2

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                5422

              
	
                135385

              	 
      	
                (67)

              	 
      	
                CARLETON
      NO. 3

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                5422

              
	
                035857

              	 
      	 
      	 
      	
                CARLTON
      �A�

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012565

              
	
                109905

              	 
      	 
      	 
      	
                CLINT
      SHAW

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                004061

              
	
                547695

              	 
      	 
      	 
      	
                COREY

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012358

              
	
                547696

              	 
      	 
      	 
      	
                COREY
      A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012458

              
	
                549418

              	 
      	 
      	 
      	
                COREY
      B

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012835

              
	
                135158

              	 
      	 
      	 
      	
                COWDEN
      46

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                032413

              
	
                547726

              	 
      	 
      	 
      	
                DOLLIE

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012392

              
	
                114794

              	 
      	 
      	 
      	
                DOLLIE
      "E"

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012590

              
	
                547727

              	 
      	 
      	 
      	
                DOLLIE
      A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                010258

              
	
                547726

              	 
      	 
      	 
      	
                DOLLIE
      B

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                009090

              
	
                547729

              	 
      	 
      	 
      	
                DOLLIE
      C

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                009396

              
	
                547730

              	 
      	 
      	 
      	
                DOLLIE
      D

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                011489

              
	
                114793

              	 
      	 
      	 
      	
                DOLLIE
      F

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013005

              
	
                547746

              	 
      	 
      	 
      	
                DOLLIE
      RUTH B

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                011439

              
	
                547737

              	 
      	 
      	 
      	
                E W
      MEINERS 31

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                010596

              
	
                135343

              	 
      	 
      	 
      	
                H F
      NEAL #2

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                016068

              
	
                035856

              	 
      	 
      	 
      	
                HIRSCH
      "A"

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012425

              
	
                035854

              	 
      	 
      	 
      	
                HIRSCH
      "C"

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012578

              


      

       

      
        
           


        

        
           


          
            

          

        

        
           


        

      

       

      Exhibit
"A"

      


      Sep
04, 2009

      Page
29 of 31

      


      
        	
                Plains
      Contract:

              	 
      	
                2582-1014

              	 
      	
                Effective:
      09-01-2009

              	 
      	
                Plains
      Marketing L.P.

              


      

      


      
        	
                
                  
                    PM

                    Lease

                    ‡=
      inact

                  

                

              	 
      	 
      	 
      	
                Lease

              	 
      	
                Operator

              	 
      	
                County/Parish

              	 
      	 
      	 
      	
                Price

              	 
      	
                Price
      Method

              	 
      	
                Applicable

                Premium

                Or

                (Deduct)

              	 
      	
                Fuel

                Adjust

              	 
      	
                Percent

              	 
      	
                Gravity

              	 	
                State

                Lease

              
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	
                547921

              	 
      	 
      	 
      	
                HIRSCH
      D

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012748

              
	
                550147

              	 
      	 
      	 
      	
                HITT

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013116

              
	
                130411

              	 
      	 
      	 
      	
                JACK
      GARNER #1

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                015899

              
	
                093284

              	 
      	 
      	 
      	
                KEENEY

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                011785

              
	
                549999

              	 
      	 
      	 
      	
                MCCUISTION

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013072

              
	
                547734

              	 
      	 
      	 
      	
                MEINERS

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012426

              
	
                549346

              	 
      	 
      	 
      	
                MEINERS
      D

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012792

              
	
                079309

              	 
      	
                (3)

              	 
      	
                MEINERS
      #2

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                010745

              
	
                063458

              	 
      	
                (3)

              	 
      	
                MEINERS
      #4

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                010745

              
	
                063459

              	 
      	
                (3)

              	 
      	
                MEINERS
      #5

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                010745

              
	
                063480

              	 
      	
                (3)

              	 
      	
                MEINERS
      #8

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                010745

              
	
                098165

              	 
      	
                (3)

              	 
      	
                MEINERS
      F1

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                010745

              
	
                547738

              	 
      	 
      	 
      	
                MEINERS
      C

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012593

              
	
                550048

              	 
      	 
      	 
      	
                MEINERS
      E

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013070

              
	
                130457

              	 
      	
                (3)

              	 
      	
                MEINERS
      F#7

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                010745

              
	
                114779

              	 
      	 
      	 
      	
                MEYER
      #1

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                008827

              
	
                547693

              	 
      	 
      	 
      	
                MIDKIFF
      B

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012369

              
	
                547751

              	 
      	 
      	 
      	
                MIDKIFF
      H

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012746

              
	
                549876

              	 
      	 
      	 
      	
                MIDKIFF
      K

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012987

              
	
                553405

              	 
      	 
      	 
      	
                N P
      S U TR 15A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                003913

              
	
                553376‡

              	 
      	 
      	 
      	
                N P
      S U TR 24A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                003913

              
	
                549875

              	 
      	 
      	 
      	
                NEAL
      18 B

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012997

              
	
                549332

              	 
      	
                (73)

              	 
      	
                NEAL
      18-A #1

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012830

              
	
                139729

              	 
      	
                (73)

              	 
      	
                NEAL
      18-A #2

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012830

              
	
                550049

              	 
      	 
      	 
      	
                NEAL
      18-C

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013088

              
	
                548226

              	 
      	 
      	 
      	
                NEAL
      18D

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013069

              
	
                035852

              	 
      	 
      	 
      	
                NEAL
      20-C

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                009953

              
	
                547738

              	 
      	 
      	 
      	
                NEAL
      24

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                009607

              
	
                035653

              	 
      	 
      	 
      	
                NEAL
      30 "C"

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                009942

              
	
                550941

              	 
      	 
      	 
      	
                NEAL
      "A"

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013459

              


      

      



      
        
           


        

        
           


          
            

          

        

        
           


        

      

       

      Exhibit
"A"

      


      Sep
04, 2009

      Page
30 of 31

      


      
        	
                Plains
      Contract:

              	 
      	
                2582-1014

              	 
      	
                Effective:
      09-01-2009

              	 
      	
                Plains
      Marketing L.P.

              


      

      


      
        	
                
                  
                    PM

                    Lease

                    ‡=
      inact

                  

                

              	 
      	 
      	 
      	
                Lease

              	 
      	
                Operator

              	 
      	
                County/Parish

              	 
      	 
      	 
      	
                Price

              	 
      	
                Price
      Method

              	 
      	
                Applicable

                Premium

                Or

                (Deduct)

              	 
      	
                Fuel

                Adjust

              	 
      	
                Percent

              	 
      	
                Gravity

              	 	
                State

                Lease

              
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	
                547740

              	 
      	 
      	 
      	
                NEAL
      B

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                007434

              
	
                547741

              	 
      	 
      	 
      	
                NEAL
      C

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                009220

              
	
                548842

              	 
      	 
      	 
      	
                NEAL
      D

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012643

              
	
                548843

              	 
      	 
      	 
      	
                NEAL
      E

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012644

              
	
                548880

              	 
      	 
      	 
      	
                NEAL
      G

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012773

              
	
                548323

              	 
      	 
      	 
      	
                NEAL
      H

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012780

              
	
                547742‡

              	 
      	 
      	 
      	
                NEAL
      HEIRS

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                007773

              
	
                550028

              	 
      	 
      	 
      	
                NEAL
      HEIRS A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013056

              
	
                109632‡

              	 
      	 
      	 
      	
                NEAL
      HEIRS A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                000000

              
	
                547743

              	 
      	 
      	 
      	
                NEAL
      HEIRS B

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                008414

              
	
                549977

              	 
      	 
      	 
      	
                NEAL
      I

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013044

              
	
                084348

              	 
      	 
      	 
      	
                NPSU
      546A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                003913

              
	
                109709

              	 
      	 
      	 
      	
                NPSU
      TRACT 16A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                003913

              
	
                109708

              	 
      	 
      	 
      	
                NPSU
      TRACT 24A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                003913

              
	
                109710

              	 
      	
                (47)

              	 
      	
                NPSU
      TRACT 34

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                003913

              
	
                123064

              	 
      	
                (47)

              	 
      	
                NPSU
      TRACT 34 #1501

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                003913

              
	
                123065

              	 
      	
                (47)

              	 
      	
                NPSU
      TRACT 34 #1602

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                003913

              
	
                156042

              	 
      	 
      	 
      	
                NPSU
      TRACT 73

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                000000

              
	
                548998

              	 
      	
                (82)

              	 
      	
                OWENS

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                5585

              
	
                035855‡

              	 
      	 
      	 
      	
                POWELL
      "G"

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012572

              
	
                142204

              	 
      	
                (77)

              	 
      	
                POWELL
      13

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                009388

              
	
                547936

              	 
      	 
      	 
      	
                POWELL
      16

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                009133

              
	
                547937

              	 
      	 
      	 
      	
                POWELL
      20

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                009207

              
	
                550025

              	 
      	 
      	 
      	
                POWELL
      20A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013054.

              
	
                550033

              	 
      	 
      	 
      	
                POWELL
      20-B

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013079

              
	
                547744

              	 
      	 
      	 
      	
                POWELL
      B

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                010527

              
	
                548739

              	 
      	 
      	 
      	
                POWELL
      H

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012814

              
	
                548140

              	 
      	
                (71)

              	 
      	
                POWELL
      I

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012756

              
	
                139565

              	 
      	
                (71)

              	 
      	
                POWELL
      1 #2

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012768

              
	
                549353

              	 
      	 
      	 
      	
                POWELL
      J

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                USA
      IN UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012809

              


      

       

      
        
          
             


          

          
             


            
              

            

          

          
             


          

        

      

       

    

    
      Exhibit
"A"

      


      Sep
04, 2009

      Page
31 of 31

      


      
        	
                Plains
      Contract:

              	
                2582-1014

              	
                Effective:
      09-01-2009

              	
                Plains
      Marketing L.P.

              	 
      


      

      


      
        	
                
                  
                    PM

                    Lease

                    ‡=
      inact

                  

                

              	 
      	 
      	 
      	
                Lease

              	 
      	
                Operator

              	 
      	
                County/Parish

              	 
      	 
      	 
      	
                Price

              	 
      	
                Price
      Method

              	 
      	
                Applicable

                Premium

                Or

                (Deduct)

              	 
      	
                Fuel

                Adjust

              	 
      	
                Percent

              	 
      	
                Gravity

              	 	
                State

                Lease

              
	
                549622

              	 
      	 
      	 
      	
                POWELL
      K

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012988

              
	
                549811

              	 
      	 
      	 
      	
                POWELL
      L

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013029

              
	
                549952

              	 
      	 (70)	 
      	
                POWELL
      M

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013011

              
	
                138584

              	 
      	 (70)	 
      	
                POWELL
      N #2

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013011

              
	
                549953

              	 
      	 
      	 
      	
                POWELL
      O

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013012

              
	
                550035

              	 
      	
                 

              	 
      	
                POWELL
      P

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013064

              
	
                547835

              	 
      	
                (77)

              	 
      	
                POWELL
      Q

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                5447

              
	
                135150

              	 
      	 
      	 
      	
                POWELL
      VJ

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                015266

              
	
                135123

              	 
      	 
      	 
      	
                RATCLIFF
      6

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                016031

              
	
                035894

              	 
      	 
      	 
      	
                SHAW
      A&B

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                6372

              
	
                549837

              	 
      	 
      	 
      	
                STUMHOFFER
      A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012975

              
	
                109705‡

              	 
      	 
      	 
      	
                STUMHOFFER
      A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012975

              
	
                548519

              	 
      	 
      	 
      	
                TIPPETT

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012420

              
	
                550776

              	 
      	 
      	 
      	
                TIPPETT
      "B"

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013372

              
	
                550716

              	 
      	 
      	 
      	
                TIPPETT
      SPRABERRY UN TR 1

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                004523

              
	
                550717

              	 
      	 
      	 
      	
                TIPPETT
      SPRABERRY UN TR 2

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                004523

              
	
                550720

              	 
      	 
      	 
      	
                TIPPETT
      UN TR 3 SPRABERRY

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                004523

              
	
                550034

              	 
      	 
      	 
      	
                ULMER
      A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013063

              
	
                554390

              	 
      	 
      	 
      	
                VP
      TIPPETT 39

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                014756

              
	
                154351

              	 
      	 (82)	 
      	
                VINA
      VANCE #2

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                016567

              
	
                130399

              	 
      	 
      	 
      	
                VON
      ROSENBURG #16

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                015946

              
	
                547747

              	 
      	 
      	 
      	
                WILDE
      & WILDE A

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                1391

              
	
                120780

              	 
      	 
      	 
      	
                WILKINSON
      #1

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                008263

              
	
                548735

              	 
      	 
      	 
      	
                WINDHAM
      P

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                012578

              
	
                550054

              	 
      	 
      	 
      	
                WINDHAM
      R

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                013082

              
	
                139558

              	 
      	 
      	 
      	
                WOOLRIDGE
      11#5

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                016109

              
	
                167979

              	 
      	 
      	 
      	
                XBC
      GIDDINGS 4009 & 4010

              	 
      	
                PIONEER
      NATURAL RES USA

              	 
      	
                IN
      UPTON

              	 
      	
                TX

              	 
      	
                X1585

              	 
      	
                EDQ

              	 
      	
                ($0.7000)

              	 
      	
                $0.0000

              	 
      	
                100.00000%

              	 
      	
                Flat

              	 	
                016349

              


      

      

        
          
             


          

          
             


            
              

            

          

          
             


          

        

      

       

      
        Exhibit
"A"

        


        Sep
04, 2009

        Page
1 of 3

        Plains Marketing L.P.

        
          	
                  Plains
      Contract:

                	
                  2582-1014

                	
                  Effective:
      09-01-2009

                	
                	 
      


        

         

      

      
        
          
            	
                    
                      
                        PM

                        Lease

                         

                      

                    

                  	 
      	 
      	 
      	
                    Lease

                  	 
      	
                    Operator

                  	 
      	
                    County/Parish

                  	 
      	 
      	 
      	
                    State

                  	 
      	
                    Price
      Code*

                  	 
      	
                     

                     

                    Price

                    Method**

                  	 
      	
                    Applicable

                    Deduct/

                    Premium

                  	 
      	
                    Percent

                  	 
      	
                    Gravity

                  	 	
                    State

                    Lease

                  
	 
      	 
      	
                    (1)

                  	
                    Allocated
      under 0890B9 FASKEN

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (2)

                  	
                    Allocated
      under 089119 MRS WILLIE FISHER

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (3)

                  	
                    Allocated
      under 088229 MEINERS F

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (4)

                  	
                    Allocated
      under 089522 ROCKER B BATTERY 'JS" 

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (5)

                  	
                    Allocated
      under 890181 DOVE F

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (6)

                  	
                    Allocated
      under 890186 MABEE FOUNDATION STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (7)

                  	
                    Allocated
      under 690189 KING D & E STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (8)

                  	
                    Allocated
      under 890204 HUGHES A & B STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (9)

                  	
                    Allocated
      under 994623 CATHEY/CASBEER STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (10)

                  	
                    Allocated
      under 994872 COWDEN/COWDEN A STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (11)

                  	
                    Allocated
      under 996008 HOLT & HOLT B STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (12)

                  	
                    Allocated
      under 995125 LOGAN B CONS BTRY STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (13)

                  	
                    Allocated
      under 996129 ATRELLE CONS BATTERY STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (14)

                  	
                    Allocated
      under 995129 SORGE CONS BATTERY STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (15)

                  	
                    Allocated
      under 995130 IRVIN A CONS BTRY STORAGE 

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (16)

                  	
                    Allocated
      under 995131 MYRTLE CONS BTRY STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (17)

                  	
                    Allocated
      under 995132 ELKIN CONS BTRY STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (18)

                  	
                    Allocated
      under 995133 LOGAN CONS BTRY STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (19)

                  	
                    Allocated
      under 995228 CRAWFORD B/MCCLURG STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (20)

                  	
                    Allocated
      under 995227 HUNTER/MCCLURG/WARD STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (21)

                  	
                    Allocated
      under 895228 MATHEWS/SIMS STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (22)

                  	
                    Allocated
      under 995229 NELSON STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (23)

                  	
                    Allocated
      under 995231TATOM A&G STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (24)

                  	
                    Allocated
      under 995232 TATOM C&F STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (25)

                  	
                    Allocated
      under 995234 ERNEST STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (26)

                  	
                    Allocated
      under 995236 SYLVIA STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (27)

                  	
                    Allocated
      under 995238 TRACY STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (28)

                  	
                    Allocated
      under 995237 TUBBS & TUBBS A STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (29)

                  	
                    Allocated
      under 995260 BAUMANN STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (30)

                  	
                    Allocated
      under 995261 EDWARDS STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (31)

                  	
                    Allocated
      under 995262 KLAPPROTH STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (32)

                  	
                    Allocated
      under 995263 WATLINGTON STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (33)

                  	
                    Allocated
      under 996264 STOUT STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (34)

                  	
                    Allocated
      under 995265 MILES B/D STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (35)

                  	
                    Allocated
      under 995266 KOONCE B/C STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (36)

                  	
                    Allocated
      under 996267 ARICK STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (37)

                  	
                    Allocated
      under 995270 TEINERT A,F,D STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (38)

                  	
                    Allocated
      under 996298 ELKIN N & O STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (39)

                  	
                    Allocated
      under 996299 BIRKHEAD & BIRKHEAD A STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      


             

            
              
                
                

              

              
                
                

                
                  

                

              

              
                
                

              

            

             

            
              
                Exhibit
"A"

                


                Sep
04, 2009

                Page 2
of 3

                Plains Marketing L.P.

                
                  	
                          Plains
      Contract:

                        	
                          2582-1014

                        	
                          Effective:
      09-01-2009

                        	
                        	 
      


                

                 

              

            

            	 
      	 
      	
                    (40)

                  	
                    Allocated
      under 995300 COUNTI8S & DAVIS 28 STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (41)

                  	
                    Allocated
      under 895301 MILLIKEN & MILLIKEN A STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (42)

                  	
                    Allocated
      under 995302 MIDKIFF & HERD STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (43)

                  	
                    Allocated
      under 995329 GRIFFIN A/GRIFFIN ESTATE STG

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (44)

                  	
                    Allocated
      under 995330ALLICO/ALLICO A STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (45)

                  	
                    Allocated
      under 995331 COFFIELD/COFFIELD A STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (46)

                  	
                    Allocated
      under 995404 WILLIAMS G CONS. BTY STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (47)

                  	
                    Allocated
      under 995621 NPSU TRACT 34 STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (48)

                  	
                    Allocated
      under 895547 FISHERMAN-A-

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (49)

                  	
                    Allocated
      under 995548 TATE #1 AND #4

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (50)

                  	
                    Allocated
      under 995807 CAMPBELL B#1 & B #2

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (51)

                  	
                    Allocated
      under 995811 ORSON H, I,J BATTERY

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (52)

                  	
                    Allocated
      under 995681 ERWIN G #3,4,5,7,8,9,10

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (53)

                  	
                    Allocated
      under 995845 ERWIN C STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (54)

                  	
                    Allocated
      under 995851 ANCHOR STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (55)

                  	
                    Allocated
      under 995852 CAMPBELL F & G STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (56)

                  	
                    Allocated
      under 995853 CAFFEY STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (57)

                  	
                    Allocated
      under 995854 YORK CONSOLIDATED BATTERY

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (58)

                  	
                    Allocated
      under 995883 HAZELWOOD AA & B

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (59)

                  	
                    Allocated
      under 995885 UNIVERSITY 13-24 STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (60)

                  	
                    Allocated
      under 995887 GULF C STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (61)

                  	
                    Allocated
      under 895888 BABB A STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (62)

                  	
                    Allocated
      under 995872 BROOKS STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (63)

                  	
                    Allocated
      under 995877 RICHARDS STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (64)

                  	
                    Allocated
      under 995889 BOHANAN STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (65)

                  	
                    Allocated
      under 995890ALDWELL L & M STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (66)

                  	
                    Allocated
      under 995901 STIMSON CONS BATTERY

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (67)

                  	
                    Allocated
      under 995912 CARLETON STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (68)

                  	
                    Allocated
      under 995914 KENNETH E & C STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (69)

                  	
                    Allocated
      under 995924 HOLT RANCH A STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (70)

                  	
                    Allocated
      under 995930 POWELL N STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (71)

                  	
                    Allocated
      under 995931 POWELL I STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (72)

                  	
                    Allocated
      under 995933 SCHARBAUER 32 STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (73)

                  	
                    Allocated
      under 995942 MEAL 18-A STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (74)

                  	
                    Allocated
      under 995956 TURNER H STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (75)

                  	
                    Allocated
      under 995984 BOTTS STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (76)

                  	
                    Allocated
      under 995996 BRISTOW B/KENTEX STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (77)

                  	
                    Allocated
      under 995996 POWELL 13 & Q STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (78)

                  	
                    Allocated
      under 998302 UNIVERSITY CTB STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      


             

            
              
                
                

              

              
                
                

                
                  

                

              

              
                
                

              

            

             

            
              
                Exhibit
"A"

                


                Sep
04, 2009

                Page 3
of 3

                Plains Marketing L.P.

                
                  	
                          Plains
      Contract:

                        	
                          2582-1014

                        	
                          Effective:
      09-01-2009

                        	
                        	 
      


                

                 

              

            

            	 
      	 
      	
                    (79)

                  	
                    Allocated
      under 996309 UNIVERSITY 2-4,1-32,2-5 STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (80)

                  	
                    Allocated
      under 996344 CASS STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (81)

                  	
                    Allocated
      under 996384 FRAZIER A STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (82)

                  	
                    Allocated
      under 996381 OWENS/VINA VANCE STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (83)

                  	
                    Allocated
      under 996382 MEEK STORAGE

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (84)

                  	
                    Allocated
      under 996471 FRED CONSOLIDATED

                  	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 
      	 	 
      
	 
      	 
      	
                    (85)

                  	
                    Allocated
      under 999517 MABEE STORAGE