Exhibit 10.2


Howard Lake #12-9
 Lease No. 762100
 
 ASSIGNMENT OF WORKING INTEREST
 This Assignment made this 7th day of September from PETROLEUM DEVELOPMENT CORPORATION, a Nevada Corporation, (herein called "Assignor") to PDC 2004C, Limited Partnership, (herein called "Assignee");
 WITNESSETH
 
 Assignor, for the sum of One Dollar ($1.00) and other valuable consideration, the receipt of which is hereby acknowledged, does by these presents GRANT, BARGAIN, SELL, EXCHANGE, CONVEY, ASSIGN, TRANSFER, SET OVER and DELIVER unto Assignee all of the following:
 
 1.  The specific undivided interest shown in Exhibit A in respect of each of the oil and gas leases shown in Exhibit A, but only to the extent such leases cover lands and depths necessary for production of the specific oil and gas well identified in Exhibit A, This is intended to be a "wellbore assignment." Assignee shall be
entitled to receive that share of production from the well identified in Exhibit A which is attributable to the undivided interest here being assigned, but the Assignee shall have, as a result of this Assignment, no interest whatsoever in any other oil and gas well, whether now existing or hereafter drilled, which may be located on the lands described in Exhibit A or on any land pooled therewith. Assignor expressly excepts from this Assignment and reserves to itself, Its successors and assigns, the remainder
of the lease and the leasehold oil and gas estate, including (without limitation) the right to produce other wells which are or may be located on the lands described in Exhibit A and lands pooled therewith, without the obligation to account to Assignee for any such other production.
 
 2.  The specific undivided interest shown in Exhibit A in all valid unitization, pooling, operating and communitization agreements, declarations and orders involving the leasehold interests here being assigned, but only to the extent that such agreements, declarations and orders relate to the well specifically identified In Exhibit
A and in all other respects limited to the manner as set forth in Paragraph 1, above.
 
 3.  The specific undivided interest shown in Exhibit A In all valid oil and gas sales, purchase, exchange and processing contracts, but only to the extent that such contracts relate to the well specifically identified in Exhibit A and in all other respects limited in the manner set forth in Paragraph 1, above.
 
 4.  The specific undivided interest shown in Exhibit A in all personal property, improvements, lease and well equipment, easements, permits, licenses, servitudes and rights-of-way now owned by Assignor and being used in connection with the operation of the well specifically identified in Exhibit A or in connection with the production,
treating, storing, transportation or marketing of oil, gas and other minerals from that well, but In all respects limited in the manner set forth in Paragraph 1, above.
 
 TO HAVE AND TO HOLD the interests described unto Assignee, its successors and assigns, forever.
 
 This Assignment is made without warranties of any type (whether of title, merchantability or fitness for a particular use), either express or Implied, but is made with full substitution of Assignee in all covenants and warranties previously given or made by others, but only to the extent of the interests here assigned. Assignor does, however,
expressly intend that this Assignment convey any title that Assignor may hereafter acquire to the extent that such after-acquired title may be necessary to fulfill the interests herein assigned.
 
 Assignee shall bear its proportionate share of all burdens on production now of record and hereby assumes its proportionate share of all other obligations that relate to the well specifically identified in Exhibit A and the production therefrom.
 Both Assignor and Assignee hereby agree to execute and deliver such additional instruments notices, division orders, transfer orders and other documents as may reasonably be requested by the other, and to do such other acts and things, as may be necessary or convenient to accomplish this Assignment in the manner and to the extent described
in Paragraph 1, above.
  
  Howard Lake #12-9
 Lease No. 762100
 
 IN WITNESS WHEREOF, Petroleum Development Corporation has executed and delivered this instrument, with the intention that it shall be effective as of the date of first production from the well specifically identified in Exhibit A.
 
 PETROLEUM DEVELOPMENT CORPORATIONA Nevada CorporationBY:
/s/ William D. GainorWilliam D. Gainor LandManager
 
 STATE OF WEST VIRGINIA

))
TO-WIT:COUNTY OF HARRISON

)
 
 The foregoing instrument was acknowledged before me this 16thday of September 2004 by William D. Gainor, Land Manager of Petroleum Development Corporation, a Nevada Corporation,
for and on behalf of the Corporation. He executed the foregoing for the purposes therein contained.
 
 OFFICIAL SEAL

/s/Rita A. ClarkNote Public. State of West Virginia

Rita A. ClarkRITA A. CLARK

Notary Public-
State ofWest VirginiaPetroleum Development Corporation


CountyofHarrison103 East Main Street. Box 26

My commission expires:June 2, 2009Bridgeport, WV 26330My commission expires June 2, 2009
 
 
 This Instrument was prepared by:
 Petroleum Development Corporation
 103 East Main Street
 P. O. Box 26
 Bridgeport, WV 26330
 Ph: 1-800-624-3821 or 304-842-6256
  
  Howard Lake 12-9
 Lease No. 762100
 
 AMENDMENT TO
 ASSIGNMENT OF WORKING INTEREST
 
 THIS AMENDMENT TO ASSIGNMENT OF WORKING INTEREST is made March 8, 2006 between Petroleum Development Corporation, a Nevada corporation, and PDC 2004-C Limited Partnership, a West Virginia limited partnership whose address is P. O. Box 26, Bridgeport, West Virginia 26330.
 
 1.    Background. By this instrument, the parties correct and amend the Assignment of Working Interest (the "Original Assignment"), dated September 7, 2004 and recorded as Instrument No, 3282449 in the real property records of Weld County, Colorado.
 
 2.     Amendment. Petroleum Development Corporation and PDC 2004-C Limited Partnership hereby amend the Original Assignment by deleting in its entirety the Exhibit A that is attached to the Original. Assignment and replacing it with the Exhibit A that is attached to this instrument. All other provisions of the Original
Assignment are unchanged.
 
 3.     Effective Date. The parties intend that this amendment be deemed effective at the effective date of the Original Assignment, just as if the Exhibit A that is attached to this instrument had originally been attached to the Original Assignment.
 
 IN WITNESS WHEREOF, this instrument has been executed by the parties.
 
 PDC 2004-C LIMITED PARTNERSHIPBy:
Petroleum Development CorporationBy:
Ersel E. MorganErsel E. Morgan, Jr. as Vice President
 
 STATE OF WEST VIRGINIA

§§
ss.COUNTY OF HARRISON

§
 
 The foregoing instrument was acknowledged before me this 5th day ofApril,2006, by Ersel E. Morgan,
as Vice President of Petroleum Development Corporation, the Managing General Partner of PDC 2004-C Limited Partnership, a West Virginia limited partnership.
 
 Witness my hand and official seal.
 
 OFFICIAL SEAL

/s/Rita A. ClarkNote Public. State of West Virginia

Rita A. ClarkRITA A. CLARK

Harrison County West VirginiaPetroleum Development Corporation

My commission expires:June 2, 2009103 East Main Street. Box 26Bridgeport, WV 26330My commission expires June 2, 2009
  EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC 2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.Howard Lake 12-9
Anadarko E & P Co., LP and Anadarko Land Corp.
09-21-2004
3243321
T6N; R64W Sec. 9: SW4NW4
Weld
Colorado
0.87345125
762100
  
  EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC 2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.Wells Ranch 14-15
Anadarko E & P Co., LP and Anadarko Land Corp.
10-07-2004
3243367
T6N, R63W Sec. 15: SW4SW4
Weld
Colorado
0.87345125
765800
  
  EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC 2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.Cornish 11-3
Anadarko E & P Co., LP and Anadarko Land Corp.
10-13-2004
3243322
T6N, R63W Sec. 3: NW4NW4
Weld
Colorado
0.87345125
765500
  
  EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC 2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.Erickson 34-4
William E. Erickson
02-10-2004
3173745
T6N, R64W Sec. 4: SW4SE4
Weld
Colorado
0.99823
745900
  
  EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC 2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.Christiansen 34-7
Anadarko E & P Co., Inc. and Anadarko Land Corp
10-15-2004
3243320
T6N, R63W Sec. 7: SW4SE4
Weld
Colorado
0.87345125
765300
  
  EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC 2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.Lawley 31-4
Shirley Lawley, et ux
07-06-2004
3208265
T6N, R64W Sec. 4: NW4NE4
Weld
Colorado
0.99823
763700Jack O. Skjoldage, et vir
07-22-2004
3217731
T6N, R64W Sec. 4: PO W2NE4



766400Louise Jane Todd
05-27-2004
3195097




759900David A. Barrell
05-27-2004
3192850




759200Margaret K. Look
06-02-2004
3201749




760900Warren L. Look
09-01-2004
3228245




773500NTB of Florida, N.A. Trustees of the J. Logan Look Trust FBO Linda Eastman
09-01-2004
3228246




773400
  
 
 EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC 2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.Cecil 13-1
Anadarko E & P Co., Inc. and Anadarko Land Corp.
10-26-2004
3243324
T6N, R64W Sec. 1: NW4SW4
Weld
Colorado
0.87345125
765600
  
 
 EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC 2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.Lawley 32-4
Shirley Lawley, et ux
07-06-2004
3208265
T6N, R64W Sec. 4: SE4SE4
Weld
Colorado
0.99823
763600Jack O. Skjoldage, et vir
07-22-2004
3217731
T6N, R64W Sec. 4: PO W2NE4



766400Louise Jane Todd
05-27-2004
3195097




759900David A. Barrell
05-27-2004
3192850




759200Margaret K. Look
06-02-2004
3201749




760900Warren L. Look
09-01-2004
3228245




773500NTB of Florida, N A. Trustees of the J, Logan Look Trust FBO Linda Eastman
09-01-2004
3228246




773400
  
 
 EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC 2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED
INTEREST
LEASE NO.Harper 43-27
Anadarko E & P Co., Inc. and Anadarko Land Corp.
11-01-2004
3258645
T7N, R65W Sec. 27: NESE
Weld
Colorado
0.87345125
763300
  
 
 EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC 2004-CLIMITED PARTNERSHIP
 
 WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.Lawley 44-4D
Sherry Lawley
07-06-2004
3208264
T6N, R64W Sec. 4: SE4SE4
Weld
Colorado
0.99823
763600
  
 
 EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC 2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.Lang 11-35
Anadarko E & P Co., Inc. and Anadarko Land Corp.
11-08-2004
3260970
T7N, R65W Sec. 35: NW4NW4
Weld
Colorado
0.87345125
763200
  
  EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC 2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.Heinze 44-29
Anadarko E & P Co., Inc. and Anadarko Land Corp.
11-18-2004
3274299
T7N, R64W Sec. 29: SESE
Weld
Colorado
0.87345125
765700
  
  EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST .
LEASE NO.Phinney 33-10
Myron A. Phinney, et ux
05-10-2004
3189023
T6N, R64W Sec. 10: NW4SE4
Weld
CO
0.99823
758700Walter James Henderson, III,
Randy Lee Henderson and
Rick Mark Henderson,
Successor Co-Trustees of the Walter J.
& Isobelle I. Henderson Trust
05-14-2004
3201750




761100David Neil Bloomquist, et ux
07-22-2004
3208262




763400
  
  EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC 2004-C LIMTTED PARTNERSHIP
 
 WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.Phinney 44-10
Walter James Henderson III,
Randy Lee Henderson & Rick
Mark Henderson, Successor
Co-Trustees of the Walter J. &
Isobelle L Henderson Trust
05-14-2004
3201751
T6N, R64W Sec. 10: SE4SE4
Weld
Colorado
0.99823
761200Francine H. Nealy
05-18-04
3201745
T6N, R64W Sec. 10: PO S2SE4



760800Edward A. White
05-14-04
3189022
T6N, R64W Sec. 10: PO S2SE4



758600Jessie White
05-14-04
3192848
TOM, R64W Sec. 10: PO S2SE4



759000
  
 
 EXHIBIT "A"
 PDC 2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR or ASSIGNOR
LEASE DATE
RECEPTION NO.
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE #Richter 43-27
Anadarko E & P Co., LP and Anadarko Land Corp.
09-14-2004
3243365
T7N, R64W Sec. 27: NESE
Weld
CO
0.3450
764200
  
  EXHIBIT "A"
 PDC 2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR or ASSIGNOR
LEASE DATE
RECEPTION NO.
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE #Richter 44-27
Anadarko E & P Co., LP and Anadarko Land Corp.
09-14-2004
3243365
T7N, R64W Sec. 27: SESE
Weld
CO
0.3450
764200
  
 
 Chevron-Texaco #33C-12D
 Lease No. 691500
 ASSIGNMENT OF WORKING INTEREST
 
 This Assignment made this 19th day of April 2004 from PETROLEUM DEVELOPMENT CORPORATION, a Nevada Corporation, (herein called "Assignor") to PDC 2004C, Limited Partnership,(herein called "Assignee");
 
 WITNESSETH
 
 Assignor, for the sum of One Dollar ($1.00) and other valuable consideration, the receipt of which is hereby acknowledged, does by these presents GRANT, BARGAIN, SELL, EXCHANGE, CONVEY, ASSIGN, TRANSFER, SET OVER and DELIVER unto Assignee all of the following:
 
 1.  The specific undivided interest shown in Exhibit A in respect of each of the oil and gas leases shown in Exhibit A, but only to the extent such leases cover lands and depths necessary for production of the specific oil and gas well identified In Exhibit A. This is intended to be a "wellbore assignment." Assignee shall be
entitled to receive that share of production from the well identified in Exhibit A which is attributable to the undivided interest here being assigned, but the Assignee shall have, as a result of this Assignment, no interest whatsoever in any other oil and gas well, whether now existing or hereafter drilled, which may be located on the lands described in Exhibit A or on any land pooled therewith. Assignor expressly excepts from this Assignment and reserves to itself, its successors and assigns, the remainder
of the lease and the leasehold oil and gas estate, including (without limitation) the right to produce other wells which are or may be located on the lands described in Exhibit A and lands pooled therewith, without the obligation to account to Assignee for any such other production.
 
 2.  The specific undivided interest shown in Exhibit A in all valid unitization, pooling, operating and communitization agreements, declarations and orders involving the leasehold interests here being assigned, but only to the extent that such agreements, declarations and orders relate to the well specifically identified in Exhibit
A and in all other respects limited to the manner as set forth in Paragraph 1, above.
 
 3.  The specific undivided interest shown in Exhibit A in all valid oil and gas sales, purchase, exchange and processing contracts, but only to the extent that such contracts relate to the well specifically identified in Exhibit A and in all other respects limited in the manner set forth in Paragraph 1, above.
 
 4.  The specific undivided interest shown in Exhibit A in all personal property, improvements, lease and well equipment, easements, permits, licenses, servitudes and rights-of-way now owned by Assignor and being used in connection with the operation of the well specifically identified in Exhibit A or in connection with the production
treating, storing, transportation or marketing of oil, gas and other minerals from that well, but in all respects limited in the manner set forth in Paragraph 1, above.
 
 TO HAVE AND TO HOLD the interests described unto Assignee, its successors and assigns, forever.
 
 This Assignment Is made without warranties of any type (whether of title, merchantability or fitness for a particular use), either express or Implied, but is made with full substitution of Assignee in all covenants and warranties previously given or made by others, but only to the extent of the interests here assigned. Assignor does, however,
expressly intend that this Assignment convey any title that Assignor may hereafter acquire to the extent that such after-acquired title may be necessary to fulfill the interests herein assigned.
 
 Assignee shall bear its proportionate share of all burdens on production now of record and hereby assumes its proportionate share of all other obligations that relate to the well specifically identified in Exhibit A and the production therefrom.
 Both Assignor and Assignee hereby agree to execute and deliver such additional instruments, notices, division orders, transfer orders and other documents as may reasonably be requested by the other, and to do such other acts and things, as may be necessary or convenient to accomplish this Assignment in the manner and to the extent described
in Paragraph 1, above.
  
  Chevron-Texaco #33C-12D
 Lease No. 691500
 
 IN WITNESS WHEREOF, Petroleum Development Corporation has executed and delivered this instrument, with the intention that it shall be effective as of the date of first production from the well specifically identified In Exhibit A.
 
 PETROLEUM DEVELOPMENT CORPORATIONA Nevada CorporationBY:
/s/ William D. GainorWilliam D. GainorLand Manager
 
 STATE OF WEST VIRGINIA

))
TO-WIT:COUNTY OF HARRISON

)
 
 The foregoing instrument was acknowledged before me this 13th day of October 2004 by William D. Gainor, Land Manager of Petroleum Development Corporation, a Nevada Corporation, for and on behalf of the Corporation. Heexecuted
the foregoing for the purposes therein contained.
 
 OFFICIAL SEAL

/s/Rita A. ClarkNote Public. State of West Virginia

Rita A. ClarkRITA A. CLARK

Notary Public-
StateWest VirginiaPetroleum Development Corporation


CountyofHarrison103 East Main Street. Box 26

My commission expires:June 2, 2009Bridgeport, WV 26330My commission expires June 2, 2009
 This Instrument was prepared by:
 Petroleum Development Corporation
 103 East Main Street
 P.O. Box26
 Bridgeport, WV 26330
 Ph: 1-800-624-3821 or 304-842-6256
  
  AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 
 THIS AMENDMENT TO ASSIGNMENT OF WORKING INTEREST is made March 8, 2006 between Petroleum. Development Corporation, a Nevada corporation, and PDC 2004-C Limited Partnership, a West Virginia limited partnership whose address is P. O. Box 26, Bridgeport, West Virginia 26330.
 
 1.     Background. By this instrument, the parties correct and amend the Assignment of Working Interest (the "Original Assignment"), dated April 19, 2004 and recorded as Instrument No. 673354 in the real property records of Garfield County, Colorado.
 
 2.     Amendment. Petroleum Development Corporation and PDC 2004-C Limited Partnership hereby amend the Original Assignment by deleting in its entirety the Exhibit A that is attached to the Original Assign: lent and replacing it with the Exhibit A that is attached to this instrument. All other provisions of the Original
Assignment are unchanged.
 
 3.     Effective Date. The parties intend that this amendment be deemed effective at the effective date of the Original Assignment, just as if the Exhibit A that is attached to this instrument had originally been attached to the Original Assignment,
 
 IN WITNESS WHEREOF, this instrument has been executed by the parties.
 
 PDC 2004-C LIMITED PARTNERSHIPBy:
Petroleum Development CorporationBy:
/s/ Ersel E. MorganErsel E. Morgan, Jr. as Vice President
 
 STATE OF WEST VIRGINIA

§§
ss.COUNTY OF HARRISON

§
 
 The foregoing  instrument was acknowledged before  me  this 5thday
April of 2006, by Ersel E. Morgan, as Vice President of Petroleum Development Corporation, the Managing General Partner of PDC 2004-C Limited Partnership, a West Virginia limited partnership.
 Witness my hand and official seal.
 OFFICIAL SEAL

/s/Rita A. ClarkNote Public. State of West Virginia

Rita A. ClarkRITA A. CLARK

Harrison County West VirginiaPetroleum Development Corporation

My commission expires:June 2, 2009103 East Main Street. Box 26Bridgeport, WV 26330My commission expires June 2, 2009
 
 EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC 2004-C LIMTIED PARTNERSHIP
 
 WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.Chevron Texaco 33C-12D
Chevron USA, Inc.
11-15-2002
623088
T6S, R97W, Sec. 12: NW4SE4
Weld
Colorado
0.99823
691500
  
  EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC 2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.Chevron Texaco 44C-12D
Chevron USA, Inc.
11-15-2002
623088
T6S, R97W, Sec. 12: SE4SE4
Garfield
Colorado
0.99823
691500
  
  EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC 2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.Chevron Texaco 43C-12D
Chevron USA, Inc.
11-15-2002
623088
T6S, R97W, Sec. 12: NE4SE4
Garfield
Colorado
0.99823
691500
  
 
 EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC 2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR. OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.Chevron 14D-17D
Chevron USA, Inc.
11-15-2002
623086
T6S, R96W Sec. 17: SW4SW4
Garfield
Colorado
0.99823
691300
  
 
 EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC 2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.Chevron 14 A-17D
Chevron USA, Inc.
11-15-2002
623086
T6S, R96W Sec. 17: SW4SW4
Garfield
Colorado
0.99823
691300
  
  EXHIBIT "A"
 AMENDMENT TO ASSIGNMENT OF WORKING INTEREST
 PDC 2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.Chevron 12A-17D
Chevron USA, Inc.
11-15-2002
Book 1447, Page 573
T6S, R96W, Sec. 17: SWNW
Garfield
Colorado
0.99823
691300
  
 
 EXHIBIT "A"
 PDC 2004-C LIMITED PARTNERSHIP
 
 WELL NAME
LESSOR or ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK NO.
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE # API#Puckett #43C-25
Puckett Land Company
11-15-1999
556562
T6S, R97W, Sec. 25: NESE
Garfield
CO
0.65
636800