Document:

ex10_1.htm

    
      

    

    EXHIBIT
10.1

     

     

    FORM
OF DRILLING AND OPERATING AGREEMENT

    

     

    DRILLING
AND OPERATING AGREEMENT

     

    This
Agreement is entered into by and between PDC 2005-B Limited Partnership,
hereinafter designated and referred to as the "Partnership", and Petroleum
Development Corporation, hereinafter referred to and designated as
"PDC".

     

    Whereas,
the parties to this agreement desire to enter into an agreement to explore and
develop certain Prospects for the production of oil and gas as hereinafter
provided,

     

    It is
agreed as follows:

    ARTICLE
I

     

    DEFINITIONS

     

    As used
in this agreement, the following words and terms shall be defined as
follows:

     

    A.           The
term "oil and gas" shall mean oil, gas, casinghead gas, gas condensate, and all
other liquid or gaseous hydrocarbons and other marketable substances produced
therewith, unless an intent to limit the inclusiveness of this term is
specifically stated.

     

    B.           The
term "Prospect" shall mean a spacing unit established according to state
regulatory guidelines and industry practice on which the Partnership proposes to
drill a well. Generally, the spacing unit for Colorado wells will encompass
approximately 32 acres for wells drilled in the Wattenberg Field and
approximately 20 acres for wells drilled in the Grand Valley Field.

     

    C.           "Royalty"
shall mean a payment from gross revenues made to the owner of the oil and gas
mineral rights of a Prospect.

     

    D.           "Overriding
royalty" shall mean a payment from gross revenues to a party other than the
owner of oil and gas mineral rights of a Prospect.

     

    E.           "Proportionate
Working Interest" shall mean an interest in a well or Prospect of less than 100%
which bears that same percentage of costs of development and production as it
receives in production revenues after deducting for royalty and overriding
royalties.

     

    F.           "Non-operators"
shall mean all parties holding a proportionate working interest in a Prospect,
including the Additional General Partners and the Limited Partners, but
excluding PDC if it is also serving as Operator.

     

    ARTICLE
II

     

    EXHIBITS

     

    The
following exhibits are incorporated in and made a part of this
agreement:

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    
      	
               
      

            	
              A.

            	
              Exhibit
      "A", Prospects.

            

    

    
      	
               
      

            	
              1.

            	
              Identification
      of each Prospect to be drilled.

            

    

    
      	
               
      

            	
              2.

            	
              Target
      formation.

            

    

    
      	
               
      

            	
              3.

            	
              The
      Partnership fractional interest
therein.

            

    

    
      	
               
      

            	
              B.

            	
              Exhibit
      "B", Insurance.

            

    

    
      	
               
      

            	
              C.

            	
              Exhibit
      "C", Additional Prospects.

            

    

     

    1.       
     Identification of additional Prospects added or
substituted after the original date of this agreement, and if substituted,
identification of the Prospect which is replaced.

     

    2.        
    Target formation.

     

    3.        
    The Partnership fractional interest
therein.

     

    4.        
    Approval by the Partnership and PDC.

    

    ARTICLE
III

    

    OPERATOR

     

    
      	
               
      

            	
              A.

            	
              Designation
      and Responsibilities of Operator:

            

    

     

    PDC shall
be the Operator of the Prospects, and shall conduct and direct and have full
control of all operations on the Prospects as permitted and required by, and
within the limits of this agreement. It shall conduct all such operations in a
good workmanlike manner, but it shall have no liability as Operator to the
Partnership for losses sustained or liabilities incurred, except such as may
result from negligence or misconduct. The Managing General Partner may
subcontract with another operator or operators to perform some of all of the
duties of the operator, on Terms and conditions substantially the same as those
discussed herein. The Managing General Partner will supervise operations by
other non-affiliated drilling contractors and subcontractors.

    

     

    
      	
               
      

            	
              B.

            	
              Resignation
      or Removal of Operator and Selection of
  Successor:

            

    

     

    1.           Resignation
or Removal of Operator: PDC may resign as Operator at any time by giving written
notice thereof to the Partnership. If PDC terminates its legal existence, no
longer owns an interest in the Prospects, has filed a petition under the Federal
bankruptcy laws or any state insolvency law or a receiver, fiscal agent, or
similar officer has been appointed by a court for the business or property of
PDC, or is otherwise no longer capable of serving as Operator, PDC shall be
deemed to have resigned without any action by the Partnership, except the
selection of a successor. PDC may be removed by the affirmative vote of
Non-Operators owning a majority working interest in each Prospect after
excluding the voting interest of Operator. Such resignation or removal shall not
become effective until 7:00 o'clock A.M., Eastern time, on the first day of
calendar month following the expiration of ninety (90) days after the giving of
notice of resignation of PDC or action by the Non-Operators to remove PDC as
Operator, unless a successor Operator has been selected and assumes the duties
of PDC at an earlier date. PDC, alter effective date of resignation or removal,
shall be bound by the terms hereof as a Non-Operator. A change of a corporate
name or structure of PDC or transfer of PDC's interest to any single subsidiary,
parent or successor corporation shall not be the basis for removal of PDC as
Operator.

     

    2.           Selection
of Successor Operator: Upon the resignation or removal of PDC, a successor
Operator shall be selected by the parties. The successor Operator shall be
selected by the affirmative vote of parties owning a majority working interest
in each Prospect; provided, however, if an Operator which has been removed fails to vote
or votes only to succeed itself, the successor Operator shall be selected by the
affirmative vote of parties owning a majority interest after excluding the
voting interest of the Operator that was removed.

    
      
         

      

      
        2

        
          

        

      

      
         

      

    

     

    
      	
               
      

            	
              C.

            	
              Employees:

            

    

    

    The
number of employees used by PDC in conducting operations hereunder, their
selection, and the hours of labor and the compensation for services performed
shall be determined by PDC.

     

    ARTICLE
IV

     

    DRILLING
PROSPECTS

     

    
      	
               
      

            	
              A.

            	
              Prospects:

            

    

     

    Exhibit
"A" lists Prospects initially to be acquired by the Partnership, and its
proportionate working interest in each Prospect. Most wells to be drilled by the
Partnerships will be offsets to producing wells. Therefore, it is unlikely that
a well drilled on a Prospect will prove up any additional acreage outside the
Prospect. If a Partnership well does prove up additional acreage, PDC will
assign the Partnership a proportionate interest in such spacing
units.

     

    
      	
               
      

            	
              B.

            	
              Cost:

            

    

     

    The
Partnership shall reimburse PDC for its proportionate share of the lesser
of:

     

    
      	
               
      

            	
              1.

            	
              The
      fair market value of the Prospect,
or

            

    

     

    
      	
               
      

            	
              2.

            	
              The
      "Cost" of acquisition of the Prospect including: (a) the price paid by PDC
      for such property; (b) title examination, abstracting, brokers
      commissions, filing fees, recording costs, transfer taxes, and other
      charges incurred in connection with the acquisition of the property; (c)
      bonuses, rentals and ad valorem taxes paid by PDC with respect to the
      Prospect to the date of its transfer to the Partnership, interest on funds
      used to acquire or maintain such property, and such portion of PDC's
      expenses for geological, drafting, accounting, legal and other like
      services allocated to the Prospect in accordance with generally accepted
      accounting principles, not including for expenses incurred in the prior
      drilling of wells, and provided such expenses shall have been incurred not
      more than 36 months prior to the purchase by the
  program.

            

    

     

    
      	
               
      

            	
              C.

            	
              Substitution:

            

    

     

    As
drilling progresses other, more desirable Prospects may become may become less
desirable as a result of additional information not available as of the date of
this agreement. For any undrilled Prospect, the Partnership may request that PDC
substitute another Prospect, in which case the entire acquisition cost paid for
the Prospect or a substitute thereof will be applied against the cost of the
substituted Prospect, and against other costs of this contract if and to the
extent the cost of the substitute Prospect is less than the cost of the original
Prospect it replaces. An amendment to this agreement in the form of Exhibit "C"
shall be used for the addition or substitution of a Prospect.

      

    
      	
               
      

            	
              D.

            	
              Title
      Examination and Opinion:

            

    

     

    Title
examination shall be made by outside attorneys on the drillsite of any proposed
well prior to commencement of drilling operations. The opinion will include
ownership of the working interest, mineral, royalty, overriding royalty, and
production payments under the applicable leases. A copy of the opinion will be
furnished to the Partnership.

     

    PDC shall
take such steps as are necessary in its best judgment to render title to the
leases assigned to the Partnership acceptable for the purposes of the
Partnership.  No operation shall be commenced on leases acquired by
the Partnership unless the Partnership Manager is satisfied that necessary title
requirements have been satisfied by PDC and that the undertaking of such
operation would be in the interest of the Partnership. PDC shall be free,
however, to use their own best judgment in waiving title requirements and shall
not be liable to the Partnership, or Participants for any mistakes of judgment;
nor shall PDC be deemed to be making any warranties or representations, express
or implied, as to the validity or merchantability of the title to any lease
assigned to the Partnership or the extent of the interest covered
thereby.

    
      
         

      

      
        3

        
          

        

      

      
         

      

    

    ARTICLE
V

     

    INTEREST
IN COSTS AND PRODUCTION

    

     

    
      	
               
      

            	
              A.

            	
              Royalties
      and Overriding Royalties:

            

    

     

    The
Partnership interest in production from drilling Prospects will be subject to
the payment to non-affiliated parties of royalties and overriding royalties ,
provided the weighted average of all royalties for all Partnership Prospects
drilled shall not exceed 25% gross revenues. No such royalty or overriding
royalty will be paid to PDC or its affiliates.

      

    
      	
               
      

            	
              B.

            	
              Proportionate
      Working Interest:

            

    

     

    The
Partnership may acquire 100% of the working interest in a Prospect or a
proportionate interest of less than 100%. In the event the Partnership acquires
a proportionate interest, the respective obligations and benefits acquired by
the Partnership will be proportionately the same as the working interest
acquired. PDC and its affiliates may not retain any overrides or other burdens
on the interest conveyed to the Partnership. The Partnership will pay a
proportionate share of the total of lease, development, and operating costs, and
will be entitled to receive a proportionate share of production subject only to
royalties and overriding royalties discussed in Article V, A.

      

    
      	
               
      

            	
              C.

            	
              Joint
      Venture Activities:

            

    

     

    PDC may
retain an interest or convey interests in undrilled Prospects to other Joint
Venturers, retaining for its own account a profit or promotional interest on the
interest conveyed. PDC shall require any party acquiring such an interest to
acquire a proportionate working interest and to assume and bear alone all
obligation associated with such an interest, and to bear alone and hold the
Partnership and other Joint Venturers harmless from all costs, claims, and
burdens associated with the interest acquired. At the discretion of the Managing
General Partner, the Partnership may enter into joint ventures which allow a
functional allocation of tangible, intangible and lease costs, where each joint
venturer is responsible for its overhead costs, provided the Partnerships
interest in the revenues and income of such a joint venture is proportional to
its contribution to the total cost of such venture.

      

    
      	
               
      

            	
              D.

            	
              Adjustments:

            

    

     

    Payment
of any bill shall not prejudice the right of Partnership to protest or question
the correctness thereof: provided, however, all bills and statements rendered to
Partnership by PDC during any calendar year shall conclusively be presumed to be
true and correct after a twenty-four (24) month period unless the Partnership
takes written exception thereto and makes claim on PDC for adjustment. No
adjustment favorable to PDC shall be made unless it is made within the same
prescribed period. The provisions of this paragraph shall not prevent
adjustments resulting from a physical inventory of controllable
material.

      

    
      	
               
      

            	
              E.

            	
              Audits:

            

    

     

    The
Partnership, upon notice in writing to PDC and all other Non-Operators, shall
have the right to audit PDC's accounts and records relating to the Partnership
wells for any calendar year within the twenty-four (24) month period following
the end of such calendar year; provided, however the making of an audit shall
not extend the time for the taking of written exception to and the adjustments
of account. Where there are two or more Non- Operators, the Non-Operators shall
make every reasonable effort to conduct a joint audit in a manner which will
result in a minimum of inconvenience to PDC. PDC shall bear no portion of the
Non-Operators audit cost incurred under this paragraph unless agreed to by
PDC.  The audits shall not be conducted more than once each year
without prior approval of PDC, except upon the resignation or removal of PDC as
operator, and shall be made at the expense of those Non-Operators requesting
such audit.

      

    PDC shall
reply in writing to an audit report within 75 days after receipt of such
report.

    
      
         

      

      
        4

        
          

        

      

      
         

      

    

     

    ARTICLE
VI

    

    DRILLING
AND DEVELOPMENT

    

     

    
      	
               
      

            	
              A.

            	
              Agreement
      To Drill and Complete:

            

    

     

    PDC shall
commence drilling of a well or wells on each Prospect within 180 days of the
date of the initial formation of the Partnerships, but in no case later than
March 30, 2005 [2006 for PDC 2005-designated Partnerships and 2007 for PDC
2006-designated Partnerships] and shall continue drilling thereafter with due
diligence to the Target formation unless a condition which renders further
drilling impractical is encountered at a lesser depth, or unless the Partnership
agrees to complete or abandon the well at a lesser depth.

     

    PDC shall
make reasonable tests of all formations encountered during drilling which give
indication of containing economic quantities of oil and/or gas. If such tests
indicate the presence of economic quantities of oil and/or gas, PDC shall
complete the well and install such surface and well equipment, gathering
pipelines, heaters, separators, etc., as are necessary and normal in the area in
which the Prospect is located. If it is determined that the well is not likely
to produce oil and/or gas in commercial quantities PDC shall plug and abandon
the well in accordance with applicable regulations.

      

    
      	
               
      

            	
              B.

            	
              Cost
      of Drilling and Completion:

            

    

     

    The
Partnership shall bear its proportionate share of the cost of drilling and
completing or drilling and abandoning each Partnership well, where the Managing
General Partner serves as operator as follows:

     

    1.           The
Cost of the Prospect, as defined; and

     

    2.           For
intangible well Costs:

     

    
      	
               
      

            	
              a.

            	
              For
      each well completed and placed in production, an amount equal to the depth
      of the well in feet at its deepest penetration as recorded by the drilling
      contractor multiplied by the "intangible drilling and completion cost" in
      the following table, plus the actual extra completion cost of zones
      completed in excess of the cost of the first zone and actual additional
      costs incurred in the event that an intermediate or third string of
      surface casing is run, rig mobilization and trucking costs, the additional
      cost for directional drilling and drill stem testing, sidetracking,
      fishing of drilling tools; or

            

    

     

    
      	
               
      

            	
              b.

            	
              For
      each well which the partnership elects not to complete, an amount equal to
      the "intangible dry hole cost" in the following table, plus the additional
      costs incurred in the event that an intermediate or third string of
      surface casing is run, rig mobilization and trucking costs, the additional
      cost for directional drilling and drill stem testing, sidetracking,
      fishing of drilling tools; and

            

    

     

    
      	
               
      

            	
              3.

            	
              The
      tangible Costs of drilling and completing the Partnership wells and of
      gathering pipelines necessary to connect the well to the nearest
      appropriate sales point or delivery
point.

            

    

     

    To the
extent that a Partnership acquires less than 100% of a Prospect, its Drilling
and Completion Costs of that Prospect will proportionately
decrease.

    
      
         

      

      
        5

        
          

        

      

      
         

      

    

    FOOTAGE
BASED RATES

     

    

    
      
        
          
            
              
                	
                        Location

                      	
                        Target
      Formations

                      	
                        Approximate
      Well Depth

                      	
                        Intangible
      Drilling And Completion Costs

                      	
                        Intangible
      Dry Hole Cost

                      
	
                        Wattenberg
      Field Colorado

                      	
                        Cretaceous
      Codell

                      	
                        6,500'
      - 7,800'

                      	
                        $60
      per foot

                      	
                        $20
      per foot

                      
	
                        Wattenberg
      Field Colorado

                      	
                        Cretaceous
      J Sandstone

                      	
                        7,000'
      - 8,000'

                      	
                        $72
      per foot

                      	
                        $23
      per foot

                      
	
                        Piceance
      Basin Colorado

                      	
                        Cretaceous
      Mesaverde

                      	
                        7,000'-
      10,000'

                      	
                        $150
      per foot

                      	
                        $85
      per foot

                      
	
                        Sand
      Wash Basin Colorado

                      	
                        Cretaceous
      and Tertiary Sands

                      	
                        8000'-
      12,000'

                      	
                        $150
      per foot

                      	
                        $85
      per foot

                      
	
                        Red
      Desert Basin Wyoming

                      	
                        Cretaceous
      and Tertiary Sands

                      	
                        8,000
      to 12,000 Ft.

                      	
                        $150
      per foot.

                      	
                        $85
      per
foot.

                      

              

            

          

        

      

    

    

     

    * The
depth used for determination well charges will be the deepest penetration by the
drilling bit.

     

    In the
event the foregoing rates exceed competitive rates available from other
non-affiliated persons in the area engaged in the business of rendering or
providing comparable services or equipment, the foregoing rates will adjust to
an amount equal to that competitive rate.

     

    In the
event the foregoing rates exceed competitive rates available from other persons
in the area engaged in the business of rendering comparable services or
equipment, the foregoing rates will be adjusted to an amount equal to that
competitive rate, but not less than the cost of providing such services or
equipment.

      

    
      	
               
      

            	
              C.

            	
              Completion
      By Less Than All Parties:

            

    

     

    In the
event not all Participants in a well wish to participate in a completion
attempt, the parties desiring to do so may pay all costs of the completion
attempt including the cost of necessary well equipment and a gathering pipeline,
and such parties shall receive all income and pay all operating costs from the
well until they have received an amount equal to 300% of the completion and
connection costs, after which time the non-consenting parties shall have the
right to receive their original interest in further revenues and
expenses.

      

    
      	
               
      

            	
              D.

            	
              Prepayment:

            

    

     

    The
Partnership agrees to pay PDC the Prospect cost for each planned well prior to
the spud date. The Partnership shall pay drilling and completion costs of the
Operator as incurred. Notwithstanding the foregoing, PDC may require full
prepayment by December 31, 2004 with respect to partnership PDC 2004-D Limited
Partnership, 2005 with respect to PDC 2005-D Limited Partnership and 2006 with
respect to PDC 2006-D Limited Partnership in order to assure the Partnership of
the rates quoted in Article VI, B, to arrange for the drilling equipment for the
wells through subcontractors and to provide PDC with working capital for the
drilling of the wells.

     

    
      	
               
      

            	
              E.

            	
              Refunds:

            

    

     

    In no
event shall PDC be obligated to refund any moneys paid to it by the Partnership
under this Agreement. In the event any amounts paid under Article VI, D exceed
costs due under Article VI, B, such excess shall be credited to the Partnership
and shall be expended for additional drilling.

    

     

    ARTICLE
VII

     

    PRODUCTION
AND SUBSEQUENT OPERATIONS

     

    
      	
               
      

            	
              A.

            	
              Commencement
      of Production:

            

    

     

    For
purposes of this agreement, production will commence:

     

    
      	
               
      

            	
              1.

            	
              In
      the case of gas wells when gas is first delivered from the well through a
      pipeline or other delivery system to a
  purchaser;

            

    

    
      
         

      

      
        6

        
          

        

      

      
         

      

    

    
      	
               
      

            	
              2.

            	
              In
      the case of oil wells when the well has produced 100 barrels;
      or

            

    

     

    
      	
               
      

            	
              3.

            	
              In
      the case of combination wells when either of criteria have been
      satisfied.

            

    

     

    A well
will be deemed to be "in production" in any month thereafter in which oil or gas
are produced in commercial quantities.

     

    
      	
               
      

            	
              B.

            	
              Production
      Operations:

            

    

     

    PDC shall
provide all necessary labor, vehicles, supervision, management, accounting, and
overhead services for normal production operations, and lease accounting, and
shall be entitled to deduct from Partnership revenues a monthly well-tending fee
of $325 per Wattenberg Field well and $600 per Piceance Basin , Sand Wash Basin
or Red Desert Basin well and a monthly Partnership Administration charge of $75
per well. If the Partnership has producing wells in areas different from those
above, the operator will charge a monthly Partnership Administration fee of $75
per well plus a competitive industry rate for operations and field supervision.
Nonroutine operations will be billed to the Partnership at their proportionate
cost. Any nonroutine operation with an estimated cost exceeding $2,000 will be
authorized for expenditure ("AFE" or "AFE'd") and submitted to the Non-Operators
for approval. Approval of a majority of the working interest owners will be
required to authorize such operations. If the Partnership authorized such
operations PDC shall have the right to deduct payment for the cost from
Partnership revenues.

     

    
      	
               
      

            	
              C.

            	
              Abandonment
      of Wells That Have Produced:

            

    

     

    Any well
which has been completed as a producer shall not be plugged and abandoned
without the consent of all Non-Operators. If all parties consent to such
abandonment, the well shall be plugged and abandoned in accordance with
applicable regulations and at the cost, risk of expense of all owners. If,
within (30) days after receipt of the notice of the proposed abandonment of any
well, all parties do not agree to the abandonment of such well, those wishing to
continue its operations from the interval(s) of the formation(s) then open to
production shall tender to each of the other parties its proportionate shale of
the value of the wells salvageable material and equipment, less the estimated
cost of salvaging and assign the non-abandoning parties, without warranty,
express or implied, as to title or as to quantity, or fitness for use of the
equipment and material, all of its interest in the well and related equipment,
together with its interest in leasehold estate as to, but only as to, the
interval or intervals of the formation or formations then open to
production.

     

    
      	
               
      

            	
              D.

            	
              Marketing
      of Production:

            

    

     

    The
Partnership shall have the right to take in kind and separately dispose of its
share of all oil and gas produced from the Prospects, excluding its
proportionate share of production required for lease operations and production
unavoidably lost. Initially the Partnership designates PDC as its agent to
market such production and authorizes PDC to enter into and bind the Partnership
in such agreements as it deems in the best interest of the Partnership for the
sale of such oil and/or gas. The Partnership may rescind the designation of PDC
as its agent with regard to all subsequent marketing agreements by written
notice at any time, but agrees to be bound by such agreements as may then be in
effect during their terms. The Partnership shall bear its proportionate share of
all marketing costs, if any. In the event PDC provides marketing services, its
charge shall be no greater than those charges made by unaffiliated marketers. If
pipelines which have been built by PDC are used in the delivery of natural gas
to market, PDC may charge a gathering fee not to exceed that which would be
charged by a nonaffiliated third party for a similar service.

     

    
      	
               
      

            	
              E.

            	
              Escalation
      in the Event of Rising Costs:

            

    

     

    The
production and accounting charges provided in Article VII, B, may be adjusted
annually beginning January 1, 2005, to an amount equal to the rates from Article
VII, B, multiplied by the ratio of the then current average weekly earnings of
Crude Petroleum and Gas Production workers to the average weekly earnings of
Crude Petroleum and Gas Production workers for 2004, as published by the United
States Department of Labor, Bureau of Labor Statistics, provided that the charge
may not exceed the rate which would be charged by other comparable operators in
the area of operations.

    
      
         

      

      
        7

        
          

        

      

      
         

      

    

    ARTICLE
VIII

     

    LIABILITY
OF PARTIES

     

    
      	
               
      

            	
              A.

            	
              Liability
      of Parties:

            

    

     

    If the
Partnership participates in a well with third parties the liability of the
parties shall be several, not joint or collective. The Partnership shall be
responsible only for its obligations, and shall be liable only for its
proportionate share of the costs of developing and operating the Prospects. It
is not the intention of the parties to create, nor shall this agreement be
construed as creating, a mining or other partnership or association, or to
render the parties liable as partners.

     

    
      	
               
      

            	
              B.

            	
              Liens
      and Payment Defaults:

            

    

     

    The
Partnership grants to PDC a lien upon its oil and gas rights in the Contract
Area, and a security interest in its share of oil and/or gas when extracted and
its interest in all equipment, to secure payment of its share of expense,
together with interest thereon. To the extent that PDC has a security interest
under the Uniform Commercial Code of the state, PDC shall be entitled to
exercise the rights and remedies of a secured party under the Code. The bringing
of a suit and the obtaining of judgment by PDC for the secured indebtedness
shall not be deemed an election of remedies or otherwise affect the lien rights
or security interest as security for the payment thereof. In addition, upon
default by the Partnership in the payment of its share of expense, PDC shall
have the right, without prejudice to other rights or remedies, to collect from
the purchaser the proceeds from the sale of the Partnership's share of oil
and/or gas until the amount owed by the Partnership, plus interest, has been
paid. Each purchaser shall be entitled to rely upon PDC's written statement
concerning the amount of any default. PDC grants a like lien and security
interest to the Partnership to secure payment of PDC's proportionate share of
expenses.

     

    If any
party fails or is unable to pay its share of expense within sixty (60) days
after rendition of a statement therefor by PDC, PDC shall pay the unpaid amount
in the proportion that the interest of each such party bears to the interest of
all such parties.

     

    
      	
               
      

            	
              C.

            	
              Payments
      and Accounting:

            

    

     

    Except as
herein otherwise specifically provided, PDC shall promptly pay and discharge
expenses incurred in the development and operation of the Contract Area pursuant
to this agreement. PDC shall keep an accurate record of the account hereunder,
showing expenses incurred and charges and credits made and
received.

     

    Regardless
of which party has contributed the lease(s) and/or oil and gas interest(s)
hereto on which royalty is due and payable, PDC shall pay or deliver or cause to
be paid or delivered the royalty and overriding royalty payments due under the
terms associated with the acquisition of each Prospect, and shall deduct such
payments from the revenue of the Partnership.

     

    
      	
               
      

            	
              D.

            	
              Taxes:

            

    

     

    Unless
Partnership elects to take production in kind, PDC shall pay or cause to be paid
all production, severance, excise, gathering and other taxes imposed upon or
with respect to the production or handling of such party's share of oil and/or
gas produced under the terms of this agreement, and shall be entitled to
reimbursement for such taxes from partnership revenue.

     

    
      	
               
      

            	
              E.

            	
              Insurance:

            

    

     

    At all
times while operations are conducted hereunder, PDC shall comply with the
workmen's compensation laws of the state of West Virginia. PDC shall also carry
or provide insurance as outlined in Exhibit "B", attached to and made a part
hereof. PDC shall require all contractors engaged in work on or for the Contract
Area to comply with the workmen's compensation law of the state where the
operations are being conducted and to maintain such other insurance as PDC may
require.

    
      
         

      

      
        8

        
          

        

      

      
         

      

    

    No
additional charge will be made for such insurance during drilling and completion
operations. When wells have been placed in production PDC may bill for the cost
of providing such insurance, allocated among wells and operations in accordance
with generally accepted accounting principles.

     

    ARTICLE
IX

     

    INTERNAL
REVENUE CODE ELECTION

     

    This
agreement is not intended to create, and shall not be construed to create, a
relationship of partnership or an association for profit between or among the
parties hereto. Notwithstanding any provision herein that the rights and
liabilities hereunder are several and not joint or collective, or that this
agreement and operations hereunder shall not constitute a partnership, if, for
federal income tax purposes, this agreement and the operations hereunder are
regarded as a partnership, each party hereby affected elects to be excluded from
the application of all of the provisions of Subchapter "K", Chapter 1, Subtitle
"A", of the Internal Revenue Code of 1986, as amended (the "Code") as permitted
and authorized by Code Section 761 and the regulations promulgated thereunder.
PDC is authorized and directed to execute on behalf of the Partnership such
evidence of this election as may be required by the Secretary of the Treasury of
the United States or the Federal Internal Revenue Service, including
specifically, but not by way of limitation, all of the returns, statements, and
the data required by Regulations 1.761. Should there be any requirement that
each party hereby affected to give further evidence of this election, each such
party shall execute such documents and furnish such other evidence as may be
required by the Federal Internal Revenue Service or as may be necessary to
evidence this election. No such party shall give any notices or take any other
action inconsistent with the election made hereby. If any present or future
income tax laws of the state or states in which the Contract Area is located or
any future income tax laws of the United States contain provisions similar to
those in Subchapter "K", Chapter 1, Subtitle "A", of the Code, under which an
election similar to that provided by Section 761 of the Code is permitted, each
party hereby affected shall make such election as may be permitted or required
by such laws. In making the foregoing election, each such party states that the
income derived by such party from operations hereunder can be adequately
determined without the computation of partnership taxable income.

     

    ARTICLE
X

     

    CLAIMS
AND LAWSUITS

     

    PDC may
settle any single uninsured third party damage claim or suit arising from
operations hereunder if the expenditure does not exceed One Thousand Dollars
($1,000.00) and if the payment is in complete settlement of such claim or suit.
If the amount required for settlement exceeds the above amount, the Partnership
shall assume and take over the further handling of its interest in the claim
suit, unless such authority is delegated to PDC. All costs and expenses of
handling, settling, or otherwise discharging such claim or suit shall be at the
joint expenses of the parties participating in the operation from which the
claim or suit arises. If a claim is made against any party or if any party is
sued on account of any matter arising from operations hereunder over which such
individual has no control because of the rights given Operator by this
agreement, such party shall immediately notify all other parties, and the claim
or suit shall be treated as any other claim or suit involving operations
hereunder all claims and suits involving title to any interest subject to this
Agreement shall be treated as a claim or suit against all parties participating
in the Prospect so affected.

    

    ARTICLE
XI

    

    FORCE
MAJEURE

     

    If either
party is rendered unable, wholly or in part, by force majeure to carry out its
obligations under this agreement, other than the obligation to make money
payments, that party shall give to the other party prompt written notice of the
force majeure with reasonably full particulars concerning its; thereupon, the
obligations of the party giving the notice, so far as they are affected by the
force majeure, shall be suspended during, but no longer than, the continuance of
the force majeure. The affected party shall use all reasonable diligence to
remove the force majeure situation as quickly as practicable.

    
      
         

      

      
        9

        
          

        

      

      
         

      

    

    The
requirement that any force majeure shall be remedied with all reasonable
dispatch shall not require the settlement of strikes, lockouts, or other labor
difficulty by the party involved, contrary to its wishes; how all such
difficulties shall be handled shall be entirely within the discretion of the
party concerned.

     

    The term
"force majeure", as here employed, shall mean act of God, strike, lockout, or
other industrial disturbance act of the public enemy, war, blockade, public
riot, lightning, fire, storm, flood, explosion, governmental action,
governmental delay, restraint or inaction, unavailability of equipment or market
for oil and/or gas, and any other cause, whether of the kind specifically
enumerated above or otherwise, which is not reasonably within the control of the
party claiming suspension.

     

    ARTICLE
XII

     

    NOTICES

     

    All
notices required by this agreement shall be given in writing addressed to the
parties as follows:

     

    1.         
   For the Partnership:

     

    Petroleum
Development Corporation, Managing General Partner PDC 2004- Limited Partnership
[PDC 2005- Limited Partnership; PDC 2006- Limited Partnership] P.O. Box 26
Bridgeport, WV 26330

     

    2.         
   For PDC:

     

    Petroleum
Development Corporation P.O. Box 26 Bridgeport, WV 26330

    

    Each
party shall have the right to change its address at any time, by giving written
notice to all other parties.

     

    ARTICLE
XIII

     

    TERM OF
AGREEMENT

     

    In the
event a well drilled under any provision of this agreement, results in
production of oil and/or gas in paying quantities, this agreement shall continue
in force so long as any such well or wells produce, or are capable of
production, and for an additional period of 180 days from cessation of all
production; provided, however, if, prior to the expiration of such additional
period, one or more of the parties hereto are engaged in drilling, reworking,
deepening, plugging back, testing or attempting to complete a well or wells
hereunder, this agreement shall continue in force until such operations have
been completed and if production results therefrom, this agreement shall
continue in force as provided herein.

     

    It is
agreed, however, that the termination of this agreement shall not relieve any
party hereto from any liability which has accrued or attached prior to the date
of such termination.

     

    ARTICLE
XIV

     

    COMPLIANCE
WITH LAWS AND REGULATIONS

     

    
      	
               
      

            	
              A.

            	
              Laws,
      Regulations and Order:

            

    

     

    This
agreement shall be subject to the conservation laws of the state in which the
Prospects are located, to the valid rules, regulations, and orders of any duly
constituted regulatory body of said state; and to all other applicable federal,
state, and local laws, ordinances, rules, regulations, and
orders.

    
      
         

      

      
        10

        
          

        

      

      
         

      

    

     

    
      	
               
      

            	
              B.

            	
              Governing
      Law:

            

    

     

    This
agreement and all matters pertaining hereto, including, but not limited to,
matters of performance, non-performance, breach, remedies, procedures, rights,
duties and interpretation or construction, shall be governed and determined by
the law of the state in which the Prospect is located.

     

    
      	
               
      

            	
              C.

            	
              Regulatory
      Agencies:

            

    

     

    Nothing
herein contained shall grant, or be construed to grant, PDC the right or
authority to waive or release any rights, privileges, or obligations which
Partnership may have federal or state laws or under rules, regulations or orders
promulgated under such laws in reference to oil, gas and mineral operations,
including the location, operation, or production of wells, on tracts offsetting
or adjacent to the Contract Area.

     

    With
respect to operations hereunder, the Partnership agrees to release PDC from any
and all losses, damages, injuries, claims and causes of action arising out of,
incident to or resulting directly or indirectly from Operator's interpretation
or application of rules, rulings, regulations, or orders of the Department of
Energy or predecessor or successor agencies to the extent such interpretation or
application was made in good faith. The Partnership further agrees to reimburse
PDC for any amounts applicable to Partnerships share of production that PDC may
be required to refund, rebate or pay as a result of such an incorrect
interpretation or application.

     

    ARTICLE
XV

     

    MISCELLANEOUS

     

    This
agreement shall be binding upon and shall inure to the benefit of the parties
hereto and to their respective heirs, devisees, legal representative, successors
and assigns.

     

    This
instrument may be executed in any number of counterparts, each of which shall be
considered an original for all purposes.

     

    IN
WITNESS WHEREOF, this agreement shall be effective as of 30th
day of April
2005.

    

    

    /s/ Darwin L.
Stump

    Darwin L.
Stump,

    CFO and
Treasurer

    Petroleum
Development Corporation

    

    

    /s/ Thomas E.
Riley

    Thomas E.
Riley, President

    Petroleum
Development Corporation,

    Managing
General Partner

    PDC
2005-B Limited Partnership

     

     

    11ex10_2.htm

    
      
        

      

      Exhibit
10.2

       

      Barrell
42-4

      Lease
No. 759200

       

      ASSIGNMENT
OF WORKING INTEREST

       

      

      This
Assignment made this 4th day of August 2005 from PETROLEUM DEVELOPMENT
CORPORATION, a Nevada Corporation, (herein called "Assignor") to PDC 2005B,
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.

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      Barrell
42-4

      Lease
No. 759200

      

      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 CORPORATION

                
	 
      	
                  A
      Nevada Corporation

                
	 
      	
                  BY:

                	
                  /s/
      William D. Gainor

                
	 
      	 
      	
                  William
      D. Gainor

                
	 
      	 
      	
                  Land
      Manager

                

        

      

      

      
        
          	
                  STATE
      OF WEST VIRGINIA

                	
                  )

                	 
      
	 
      	
                  )

                	
                  TO-WIT:

                
	
                  COUNTY
      OF HARRISON

                	
                  )

                	 
      

        

      

      

      The
foregoing instrument was acknowledged before me this 18th day of
August 2005 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.

      

      

      
        
          
            
              
                
                  
                    
                      	 
      	 
      	
                              /s/ Rita A. Clark

                            
	 
      	 
      	
                              Rita
      A. Clark

                            
	 
      	 
      	
                              Notary
      Public - State of West Virginia

                            
	
                              OFFICIAL
      SEAL

                            	 
      	
                              County
      of Harrison

                            
	
                              Notary Public, State of West Virginia

                            	 
      	
                              My
      Commission expires: June 2, 2009

                            
	
                              RITA
      A. CLARK

                            	 
      	 
      
	
                              Petroleum
      Development Corporation

                            	 
      	 
      
	
                              103
      East Main Street, Box 26

                            	 
      	 
      
	
                              Bridgeport,
      WV 26330

                            	 
      	 
      
	
                              My
      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

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          
            
              
                	
                        WELL

                        NAME

                      	
                        LESSOR
      or

                        ASSIGNOR

                      	
                        LEASE

                        DATE

                      	
                        RECEPTION
      NO.

                      	
                        LEGAL
      DESCRIPTION

                      	
                        COUNTY

                      	
                        STATE

                      	
                        ASSIGNED
      INTEREST

                      	
                        LEASE#

                      
	
                        Barrell
      42-4

                      	
                        David
      A. Barrell

                      	
                        05-27-2004

                      	
                        3192850

                      	
                        T6N,
      R64W, Sec. 4: SE4NE4

                      	
                        Weld

                      	
                        CO

                      	
                        99.6446%

                      	
                        759200

                      
	 
      	
                        Louise
      J. Todd

                      	
                        05-27-2004

                      	
                        3195097

                      	
                        T6N,
      R64W, Sec. 4: E2NE4

                      	 
      	 
      	 
      	
                        760000

                      
	 
      	
                        Margaret
      K. Look

                      	
                        06-02-2004

                      	
                        3201749

                      	
                        T6N,
      R64W, Sec. 4: E2NE4

                      	 
      	 
      	 
      	
                        761000

                      
	 
      	
                        Warren
      L. Look

                      	
                        09-01-2004

                      	
                        3228250

                      	
                        T6N,
      R64W, Sec. 4: E2NE4

                      	 
      	 
      	 
      	
                        773300

                      
	 
      	
                        Northern
      Trust Bank of Florida, N.A, Trustee of the J. Logan Look Irrevocable
      Trust FBO
      Linda Eastman

                      	
                        09-01-2004

                      	
                        3228244

                      	
                        T6N,
      R64W, Sec. 4: E2NE4

                      	 
      	 
      	 
      	
                        773200

                      

              

            

          

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      
        EXHIBIT
"A"

        PDC
2005B LIMITED PARTNERSHIP

      

      

      
        
          
            
              
                
                  	
                          WELL

                          NAME

                        	
                          LESSOR
      or

                          ASSIGNOR

                        	
                          LEASE

                          DATE

                        	
                          RECEPTION
      NO.

                        	
                          LEGAL

                          DESCRIPTION

                        	
                          COUNTY

                        	
                          STATE

                        	
                          ASSIGNED

                          INTEREST

                        	
                          LEASE
      #

                        
	
                          Cervi
      14-24

                        	
                          Hobe
      Minerals LLC

                        	
                          11-23-2004

                        	
                          3242543

                        	
                          T4N,
      R63W

                          Sec.
      24: SW4SW4

                        	
                          Weld

                        	
                          CO

                        	
                          99.6446%

                        	
                          800800

                        

                

              

            

          

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          
            	
                    WELL

                    NAME

                  	
                    LESSOR or

                    ASSIGNOR

                  	
                    LEASE

                    DATE

                  	
                    RECEPTION
      NO.

                  	
                    LEGAL

                    DESCRIPTION

                  	
                    COUNTY

                  	
                    STATE

                  	
                    ASSIGNED

                    INTEREST

                  	
                    LEASE
      #

                  
	
                    Cervi
      24-24

                  	
                    Hobe
      Minerals, LLC

                  	
                    11-23-2004

                  	
                    3242543

                  	
                    T4N,
      R63W

                    Sec.
      24: SE4NW4

                  	
                    Weld

                  	
                    CO

                  	
                    99.6446%

                  	
                    800800

                  

          

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          
            	
                    WELL

                    NAME

                  	
                    LESSOR
      or

                    ASSIGNOR

                  	
                    LEASE

                    DATE

                  	
                    RECEPTION
      NO.

                  	
                    LEGAL

                    DESCRIPTION

                  	
                    COUNTY

                  	
                    STATE

                  	
                    ASSIGNED

                    INTEREST

                  	
                    LEASE
      8

                  
	
                    Cervi
      31-26

                  	
                    Hobe
      Minerals, LLC

                  	
                    11-23-2004

                  	
                    3242543

                  	
                    T4N,
      R63W

                    Sec.
      26: NW4NE4

                  	
                    Weld

                  	
                    CO

                  	
                    99.6446%

                  	
                    800800

                  

          

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          
            	
                    WELL

                    NAME

                  	
                    LESSOR
      or

                    ASSIGNOR

                  	
                    LEASE

                    DATE

                  	
                    RECEPTION
      NO.

                  	
                    LEGAL

                    DESCRIPTION

                  	
                    COUNTY

                  	
                    STATE

                  	
                    ASSIGNED

                    INTEREST

                  	
                    LEASE
      #

                  
	
                    Cervi
      41-26

                  	
                    Hobe
      Minerals LLC

                  	
                    11-23-2004

                  	
                    3242543

                  	
                    T4N,
      R63W

                    Sec.
      26: NE4NE4

                  	
                    Weld

                  	
                    CO

                  	
                    99.6446%

                  	
                    800800

                  

          

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          
            	
                    WELL

                    NAME

                  	
                    LESSOR or

                    ASSIGNOR

                  	
                    LEASE

                    DATE

                  	
                    RECEPTION
      NO.

                  	
                    LEGAL

                    DESCRIPTION

                  	
                    COUNTY

                  	
                    STATE

                  	
                    ASSIGNED

                    INTEREST

                  	
                    LEASE
      #

                  
	
                    Chevron
      12-4

                  	
                    Chevron
      Shale Oil Co.

                  	
                    09-20-2001

                  	
                    623084

                  	
                    T6S,
      R96W

                    Sec.
      4: SWNW

                  	
                    Garfield

                  	
                    CO

                  	
                    99.6446%

                  	
                    687100

                  

          

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Clark
      12-27

                	
                  Eugene
      W. Clark and Margaret Ann Clark

                	
                  09-16-2003

                	
                  3135738

                	
                  T7N,
      R65W

                  Sec.
      27: SW4NW4

                	
                  Weld

                	
                  CO

                	
                  99.6446%

                	
                  730000

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Cornish
      12-3

                	
                  Anadarko
      E & P Co., LP and Anadarko Land Corporation

                	
                  10-13-2004

                	
                  3243322

                	
                  T6N,
      R63W

                  Sec.
      3: SW4NW4

                	
                  Weld

                	
                  CO

                	
                  87.1885%

                	
                  765500

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE#

                
	
                  Cornish
      21-3

                	
                  Anadarko
      E & P Company, LP and Anadarko Land Corp.

                	
                  10-13-2004

                	
                  3243322

                	
                  T6N,
      R63W

                  Sec.
      3: NE4NW4

                	
                  Weld

                	
                  CO

                	
                  87.1885%

                	
                  765500

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASES

                
	
                  Cornish
      22-3

                	
                  Anadarko
      E & P Company, LP and Anadarko Land Corp.

                	
                  10-13-2004

                	
                  3243322

                	
                  T6N,
      R63W

                  Sec.
      3: SE4NW4

                	
                  Weld

                	
                  CO

                	
                  87.1885%

                	
                  765500

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL
      DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Dillard
      31-20

                	
                  Dillard
      Family, LLC

                	
                  09-13-2004

                	
                  3228247

                	
                  T7N,
      R64W, Sec. 20 NE4NE4

                	
                  Weld

                	
                  CO

                	
                  99.6446%

                	
                  772900

                
	 
      	
                  Mary
      Beth Elizabeth Rivera by her AIF Andrea E. Bauer

                	
                  09-13-2004

                	
                  3235727

                	
                  T7N,
      R64W, Sec. 20 NE4NE4

                	 
      	 
      	 
      	
                  777000

                
	 
      	
                  Gretchen
      Lynne Groves, Webb

                	
                  09-13-2004

                	
                  3247199

                	
                  T7N,
      R64W, Sec. 20 NE4NE4

                	 
      	 
      	 
      	
                  778900

                
	 
      	
                  Jane
      Gwynne Groves

                	
                  09-13-2004

                	
                  3242744

                	
                  T7N,
      R64W, Sec. 20 NE4NE4

                	 
      	 
      	 
      	
                  778100

                
	 
      	
                  Julianne
      Fritz

                	
                  09-13-2004

                	
                  3233836

                	
                  T7N,
      R64W, Sec. 20 NE4NE4

                	 
      	 
      	 
      	
                  776400

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION

                  NO.

                	
                  LEGAL
      DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE#

                
	
                  Dillard
      41-20

                	
                  Dillard
      Family, LLC

                	
                  09-13-2004

                	
                  3228247

                	
                  T7N,
      R64W, Sec. 20 NE4NE4

                	
                  Weld

                	
                  CO

                	
                  99.6446%

                	
                  772900

                
	 
      	
                  Mary
      Beth Elizabeth Rivera by her AIF Andrea E. Bauer

                	
                  09-13-2004

                	
                  3235727

                	
                  T7N,
      R64W, Sec. 20 NE4NE4

                	 
      	 
      	 
      	
                  777000

                
	 
      	
                  Gretchen
      Lynne Groves Webb

                	
                  09-13-2004

                	
                  3247199

                	
                  T7N,
      R64W, Sec. 20 NE4NE4

                	 
      	 
      	 
      	
                  778900

                
	 
      	
                  Jane
      Gwynne Groves

                	
                  09-13-2004

                	
                  3242744

                	
                  T7N,
      R64W, Sec. 20 NE4NE4

                	 
      	 
      	 
      	
                  778100

                
	 
      	
                  Julianne
      Fritz

                	
                  09-13-2004

                	
                  3233836

                	
                  T7N,
      R64W, Sec. 20 NE4NE4

                	 
      	 
      	 
      	
                  776400

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          
            	
                    WELL

                    NAME

                  	
                    LESSOR or

                    ASSIGNOR

                  	
                    LEASE

                    DATE

                  	
                    RECEPTION
      NO.

                  	
                    LEGAL

                    DESCRIPTION

                  	
                    COUNTY

                  	
                    STATE

                  	
                    ASSIGNED

                    INTEREST

                  	
                    LEASE
      #

                  
	
                    Erickson
      14-4

                  	
                    William
      E. Erickson

                  	
                    02-10-2004

                  	
                    3173745

                  	
                    T6N,
      R64W

                    Sec.
      4: SW4SW4

                  	
                    Weld

                  	
                    CO

                  	
                    99.6446%

                  	
                    745900

                  

          

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE#

                
	
                  Erickson
      24-4

                	
                  William
      E. Erickson

                	
                  02-10-2004

                	
                  3173745

                	
                  T6N,
      R64W

                  Sec.
      4: SE4SW4

                	
                  Weld

                	
                  CO

                	
                  99.6446%

                	
                  745900

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Hazen
      21-33

                	
                  Gary
      Lynn Hazan and Mary A. Hazen H&W

                	
                  08-13-2004

                	
                  3217726

                	
                  T7N,
      R65W 

                  Sec.
      33: NE4NW4

                	
                  Weld

                	
                  CO

                	
                  99.6446%

                	
                  767000

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Hazen
      22-33

                	
                  Gary
      Lynn Hazen and Mary A. Hazen, H&W

                	
                  08-13-2004

                	
                  3217726

                	
                  T7N,
      R65W

                  Sec.
      33: SE4NW4

                	
                  Weld

                	
                  CO

                	
                  99.6446%

                	
                  767000

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Hazen
      23-28

                	
                  Gary
      Lynn Hazen and Mary A. Hazen H&W

                	
                  09-30-2003

                	
                  3232682

                	
                  T7N,
      R65W

                  Sec.
      28: NE4SW4

                	
                  Weld

                	
                  CO

                	
                  99.6446%

                	
                  730400

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Howard
      Lake 21-9

                	
                  Anadarko
      E & P Company, LP and Anadarko Land Corporation

                	
                  09-21-2004

                	
                  3243321

                	
                  T6N,
      R64W

                  Sec.
      9: NE4NW4

                	
                  Weld

                	
                  CO

                	
                  87.1885%

                	
                  762100

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE#

                
	
                  Howard
      Lake 41-9

                	
                  Anadarko
      E & P Company, LP and Anadarko Land Corporation

                	
                  09-21-2004

                	
                  3243321

                	
                  T6N,
      R64W

                  Sec.
      9: NE4NE4

                	
                  Weld

                	
                  CO

                	
                  87.1885%

                	
                  762100

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE#

                
	
                  Howard
      Lake 42-9

                	
                  Anadarko
      E & P Company, LP and Anadarko Land Corporation

                	
                  09-21-2004

                	
                  3243321

                	
                  T6N,
      R64W

                  Sec.
      9: SE4NE4

                	
                  Weld

                	
                  CO

                	
                  87.1885%

                	
                  762100

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          
            	
                    WELL

                    NAME

                  	
                    LESSOR
      or

                    ASSIGNOR

                  	
                    LEASE

                    DATE

                  	
                    RECEPTION
      NO.

                  	
                    LEGAL

                    DESCRIPTION

                  	
                    COUNTY

                  	
                    STATE

                  	
                    ASSIGNED

                    INTEREST

                  	
                    LEASE#

                  
	
                    Kolhoff
      23-22

                  	
                    Henry
      F. Kolhoff

                  	
                    11-22-2004

                  	
                    3247201

                  	
                    T7N,
      R64W

                    Sec.
      22: NE4SW4

                  	
                    Weld

                  	
                    CO

                  	
                    99.6446%

                  	
                    778700

                  

          

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Kohlhoff
      24-22

                	
                  Henry
      F. Kohlhoff

                	
                  11-22-2004

                	
                  3247201

                	
                  T7N,
      R64W

                  Sec.
      22: SE4SW4

                	
                  Weld

                	
                  CO

                	
                  99.6446%

                	
                  778700

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Northern
      Property 23-29

                	
                  Anadarko
      E & P LP and Anadarko Land Corp

                	
                  09-28-2004

                	
                  3258643

                	
                  T7N,
      R65W

                  Sec.
      29: NE4SW4

                	
                  Weld

                	
                  CO

                	
                  87.1885%

                	
                  764100

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Northern
      Property 24-29

                	
                  Anadarko
      E & P LP and Anadarko Land Corp

                	
                  09-28-2004

                	
                  3258643

                	
                  T7N,
      R65W

                  Sec.
      29: SE4SW4

                	
                  Weld

                	
                  CO

                	
                  87.1885%

                	
                  764100

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          
            
              
                
                  	
                          WELL

                          NAME

                        	
                          LESSOR
      or

                          ASSIGNOR

                        	
                          LEASE

                          DATE

                        	
                          RECEPTION
      NO.

                        	
                          LEGAL
      DESCRIPTION

                        	
                          COUNTY

                        	
                          STATE

                        	
                          ASSIGNED

                          INTEREST

                        	
                          LEASE
      #

                        
	
                          Paxton
      11-33

                        	
                          Dorothy
      Paxton

                        	
                          09-23-2003

                        	
                          3135740

                        	
                          T7N,
      R65W, Sec. 33: NW4NW4

                        	
                          Weld

                        	
                          CO

                        	
                          99.6446%

                        	
                          729700

                        
	 
      	
                          Ronald
      Lee Anderson, et ux

                        	
                          12-07-2003

                        	
                          3157660

                        	
                          T7N,
      R65W, Sec. 33: PO W2NW4

                        	 
      	 
      	 
      	
                          735000

                        
	 
      	
                          Carol
      L. Honstein

                        	
                          12-07-2003

                        	
                          3157661

                        	
                          T7N,
      R65W, Sec. 33: PO W2NW4

                        	 
      	 
      	 
      	
                          735100

                        
	 
      	
                          Joyce
      E. Heimbickner

                        	
                          12-07-2003

                        	
                          3163798

                        	
                          T7N,
      R65W, Sea 33: PO W2NW4

                        	 
      	 
      	 
      	
                          738000

                        
	 
      	
                          Darrell
      W. Anderson, et ux

                        	
                          12-07-2003

                        	
                          3157664

                        	
                          T7N,
      R65W, Sec. 33: PO W2NW4

                        	 
      	 
      	 
      	
                          735400

                        
	 
      	
                          Richard
      A Bloom, et ux

                        	
                          12-07-2003

                        	
                          3157662

                        	
                          T7N,
      R65W, Sec. 33: PO W2NW4

                        	 
      	 
      	 
      	
                          735200

                        
	 
      	
                          Earl
      C. Bowlsby,
      et ux

                        	
                          12-07-2003

                        	
                          3157663

                        	
                          T7N,
      R65W, Sec. 33: PO W2NW4

                        	 
      	 
      	 
      	
                          735300

                        
	 
      	
                          Janice
      E. (Anderson) Glines

                        	
                          12-07-2003

                        	
                          3157665

                        	
                          T7N,
      R65W, Sec. 33: PO W2NW4

                        	 
      	 
      	 
      	
                          735500

                        
	 
      	
                          Heather
      L. Anthony

                        	
                          12-07-2003

                        	
                          3157666

                        	
                          T7N,
      R65W, Sec. 33: PO W2NW4

                        	 
      	 
      	 
      	
                          735600

                        

                

              

            

          

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          
            
              	
                      WELL

                      NAME

                    	
                      LESSOR
      or

                      ASSIGNOR

                    	
                      LEASE

                      DATE

                    	
                      RECEPTION

                      NO.

                    	
                      LEGAL
      DESCRIPTION

                    	
                      COUNTY

                    	
                      STATE

                    	
                      ASSIGNED

                      INTEREST

                    	
                      LEASE
      #

                    
	
                      Paxton
      12-33

                    	
                      Dorothy
      Paxton

                    	
                      09-23-2003

                    	
                      3135740

                    	
                      T7N,
      R65W, Sec. 33: SW4NW4

                    	
                      Weld

                    	
                      CO

                    	
                      99.6446%

                    	
                      729700

                    
	 
      	
                      Ronald
      Lee Anderson, et ux

                    	
                      12-07-2003

                    	
                      3157660

                    	
                      T7N,
      R65W, Sec. 33: POW2NW4

                    	 
      	 
      	 
      	
                      735000

                    
	 
      	
                      Carol
      L. Honstein

                    	
                      12-07-2003

                    	
                      3157661

                    	
                      T7N,
      R65W, Sec. 33: PO W2NW4

                    	 
      	 
      	 
      	
                      735100

                    
	 
      	
                      Joyce
      E. Heimbickner

                    	
                      12-07-2003

                    	
                      3163798

                    	
                      T7N,
      R65W, Sec. 33: PO W2NW4

                    	 
      	 
      	 
      	
                      738000

                    
	 
      	
                      Darrell
      W. Anderson, et ux

                    	
                      12-07-2003

                    	
                      3157664

                    	
                      T7N,
      R65W, Sec. 33: PO W2NW4

                    	 
      	 
      	 
      	
                      735400

                    
	 
      	
                      Richard
      A. Bloom, et ux

                    	
                      12-07-2003

                    	
                      3157662

                    	
                      T7N,
      R65W, Sec. 33: POW2NW4

                    	 
      	 
      	 
      	
                      735200

                    
	 
      	
                      Earl
      C. Bowlsby, et ux

                    	
                      12-07-2003

                    	
                      3157663

                    	
                      T7N,
      R65W, Sec. 33: PO W2NW4

                    	 
      	 
      	 
      	
                      735300

                    
	 
      	
                      Janice
      E. (Anderson) Glines

                    	
                      12-07-2003

                    	
                      3157665

                    	
                      T7N,
      R65W, Sec. 33: PO W2NW4

                    	 
      	 
      	 
      	
                      735500

                    
	 
      	
                      Heather
      L.
      Anthony

                    	
                      12-07-2003

                    	
                      3157666

                    	
                      T7N,
      R65W, Sec. 33: PO W2NW4

                    	 
      	 
      	 
      	
                      735600

                    

            

          

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Puckett
      11C-7

                	
                  Puckett
      Land Company

                	
                  11-15-1999

                	
                  556562

                	
                  T7S,
      R96W

                  Sec.
      7: NWNW

                	
                  Garfield

                	
                  CO

                	
                  99.6446%

                	
                  636800

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Puckett
      12B-7

                	
                  Puckett
      Land Company

                	
                  11-15-1999

                	
                  556562

                	
                  T7S,
      R96W

                  Sec.
      7: SW4NW4

                	
                  Garfield

                	
                  CO

                	
                  10.0000%

                	
                  636800

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Puckett
      13C-13D

                	
                  Puckett
      Land Company

                	
                  11-15-1999

                	
                  556562

                	
                  T6S,
      R96W

                  Sec.
      31: NESW

                	
                  Garfield

                	
                  CO

                	
                  69.6446%

                	
                  636800

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Puckett
      24B-6

                	
                  Puckett
      Land Company

                	
                  11-15-1999

                	
                  556562

                	
                  T7S,
      R96W

                  Sec.
      6: SESW

                	
                  Garfield

                	
                  CO

                	
                  80.0000%

                	
                  636800

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Puckett
      234-25

                	
                  Puckett
      Land Co.

                	
                  11-15-1999

                	
                  556562

                	
                  T6S,
      R97W

                  Sec.
      25: SENW

                	
                  Garfield

                	
                  CO

                	
                  99.6446%

                	
                  636800

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Puckett
      245-1

                	
                  Puckett
      Land Company

                	
                  11-15-1999

                	
                  556562

                	
                  T7S,
      R97W

                  Sec.
      1: SENW

                	
                  Garfield

                	
                  CO

                	
                  99.6446%

                	
                  636800

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Puckett
      247-25

                	
                  Puckett
      Land Co.

                	
                  11-15-1999

                	
                  556562

                	
                  T6S,
      R97W

                  Sec.
      25: SESW

                	
                  Garfield

                	
                  CO

                	
                  99.6446%

                	
                  636800

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Puckett
      251-25

                	
                  Puckett
      Land Co.

                	
                  11-15-1999

                	
                  556562

                	
                  T6S,
      R97W

                  Sec.
      25: SW4NE4

                	
                  Garfield

                	
                  CO

                	
                  99.6446%

                	
                  636800

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Puckett
      264-1

                	
                  Puckett
      Land Company

                	
                  11-15-1999

                	
                  556562

                	
                  T7S,
      R97W

                  Sec.
      1: SW4NE4

                	
                  Garfield

                	
                  CO

                	
                  99.6446%

                	
                  636800

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005A LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Puckett
      266-1

                	
                  Puckett
      Land Co.

                	
                  11-15-1999

                	
                  556562

                	
                  T7S,
      R97W

                  Sec
      1: NW4SE4

                	
                  Garfield

                	
                  CO

                	
                  31.7304%

                	
                  636800

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005A LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Puckett
      275-1

                	
                  Puckett
      Land Company

                	
                  11-15-1999

                	
                  556562

                	
                  T7S,
      R97W

                  Sec.
      1: NE4SE4

                	
                  Garfield

                	
                  CO

                	
                  31.7304%

                	
                  636800

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Ruff
      22-3

                	
                  Anadarko
      E & P Company, LP and Anadarko Land Corp.

                	
                  08-26-2004

                	
                  3243366

                	
                  T6N,
      R64W

                  Sec.
      3: SE4NW4

                	
                  Weld

                	
                  CO

                	
                  87.1885%

                	
                  762200

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      Or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL
      DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Schmerge
      33-4

                	
                  Tom
      Schmerge 

                  Elisabeth
      Schmerge

                	
                  05-09-2005

                	
                  3297661

                	
                  T5N,
      R67W, Sec. 4: NW4SE4

                	
                  Weld

                	
                  CO

                	
                  99.6446%

                	
                  801800

                
	 
      	
                  Diane
      Bette Lapp

                	
                  12-17-2004

                	
                  3280314

                	 
      	 
      	 
      	 
      	
                  799300

                
	 
      	
                  Georqe
      Lapp

                	
                  12-10-2004

                	
                  3264224

                	 
      	 
      	 
      	 
      	
                  779800

                
	 
      	
                  Henry
      Lapp, Jr.

                	
                  01-11-2005

                	
                  3260399

                	 
      	 
      	 
      	 
      	
                  780100

                
	 
      	
                  Jack
      J. Lapp

                	
                  12-10-2004

                	
                  3252935

                	 
      	 
      	 
      	 
      	
                  779600

                
	 
      	
                  Leland
      Lapp

                	
                  12-10-2004

                	
                  3264226

                	 
      	 
      	 
      	 
      	
                  779700

                
	 
      	
                  Dewey
      R. Holland

                	
                  12-10-2004

                	
                  3260400

                	 
      	 
      	 
      	 
      	
                  780200

                
	 
      	
                  Jesse
      L. Holland, et ux

                	
                  12-17-2004

                	
                  3275988

                	 
      	 
      	 
      	 
      	
                  780000

                
	 
      	
                  Mary
      Jane Duncan

                	
                  09-19-2005

                	
                  3324226

                	 
      	 
      	 
      	 
      	
                  802500

                
	 
      	
                  Anthony
      A. Holland

                	
                  11-07-2005

                	
                  3338286

                	 
      	 
      	 
      	 
      	 
      
	 
      	
                  Holland
      Revocable Living Trust

                	
                  11-07-2005

                	
                  3338287

                	 
      	 
      	 
      	 
      	 
      

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL
      DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Schmerge
      34-4

                	
                  Tom
      Schmerge 

                  Elisabeth
      Schmerge

                	
                  05-09-2005

                	
                  3297661

                	
                  T5N,
      R67W, Sec. 4: SW4SE4

                	
                  Weld

                	
                  CO

                	
                  99.6446%

                	
                  801800

                
	 
      	
                  Diane
      Bette Lapp

                	
                  12-17-2004

                	
                  3280314

                	 
      	 
      	 
      	 
      	
                  799300

                
	 
      	
                  George
      Lapp

                	
                  12-10-2004

                	
                  3264224

                	 
      	 
      	 
      	 
      	
                  779800

                
	 
      	
                  Henry
      Lapp, Jr.

                	
                  01-11-2005

                	
                  3260399

                	 
      	 
      	 
      	 
      	
                  780100

                
	 
      	
                  Jack
      J. Lapp

                	
                  12-10-2004

                	
                  3252935

                	 
      	 
      	 
      	 
      	
                  779600

                
	 
      	
                  Leland
      Lapp

                	
                  12-10-2004

                	
                  3264226

                	 
      	 
      	 
      	 
      	
                  779700

                
	 
      	
                  Dewey
      R. Holland

                	
                  12-10-2004

                	
                  3260400

                	 
      	 
      	 
      	 
      	
                  780200

                
	 
      	
                  Jesse
      L. Holland, et ux

                	
                  12-17-2004

                	
                  3275988

                	 
      	 
      	 
      	 
      	
                  780000

                
	 
      	
                  Mary
      Jane Duncan

                	
                  09-19-2005

                	
                  3324226

                	 
      	 
      	 
      	 
      	
                  802500

                
	 
      	
                  Anthony
      A. Holland

                	
                  11-07-2005

                	
                  3338266

                	 
      	 
      	 
      	 
      	 
      
	 
      	
                  Holland
      Revocable Living Trust

                	
                  11-07-2005

                	
                  3338287

                	 
      	 
      	 
      	 
      	 
      

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL
      DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Schmerge
      43-4

                	
                  Tom
      Schmerge 

                  Elisabeth
      Schmerge

                	
                  05-09-2005

                	
                  3297661

                	
                  T5N,
      R67W, Sec 4: NE4SE4

                	
                  Weld

                	
                  CO

                	
                  99.6446%

                	
                  801800

                
	 
      	
                  Diane
      Bette Lapp

                	
                  12-17-2004

                	
                  3280314

                	 
      	 
      	 
      	 
      	
                  799300

                
	 
      	
                  George
      Lapp

                	
                  12-10-2004

                	
                  3264224

                	 
      	 
      	 
      	 
      	
                  779800

                
	 
      	
                  Henry
      Lapp. Jr.

                	
                  01-11-2005

                	
                  3260399

                	 
      	 
      	 
      	 
      	
                  780100

                
	 
      	
                  Jack
      J. Lapp

                	
                  12-10-2004

                	
                  3252935

                	 
      	 
      	 
      	 
      	
                  779600

                
	 
      	
                  Leland
      Lapp

                	
                  12-10-2004

                	
                  3264226

                	 
      	 
      	 
      	 
      	
                  779700

                
	 
      	
                  Dewey
      R. Holland

                	
                  12-10-2004

                	
                  3260400

                	 
      	 
      	 
      	 
      	
                  780200

                
	 
      	
                  Jesse
      L. Holland, et ux

                	
                  12-17-2004

                	
                  3275968

                	 
      	 
      	 
      	 
      	
                  780000

                
	 
      	
                  Mary
      Jane Duncan

                	
                  09-19-2005

                	
                  3324226

                	 
      	 
      	 
      	 
      	
                  802500

                
	 
      	
                  Anthony
      A. Holland

                	
                  11-07-2005

                	
                  3338286

                	 
      	 
      	 
      	 
      	 
      
	 
      	
                  Holland
      Revocable Living Trust

                	
                  11-07-2005

                	
                  3338287

                	 
      	 
      	 
      	 
      	 
      

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL
      DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Schmerge
      44-4

                	
                  Tom
      Schmerge 

                  Elisabeth
      Schmerge

                	
                  05-09-2005

                	
                  3297661

                	
                  T5N,
      R67W, Sec. 4: SE4SE4

                	
                  Weld

                	
                  CO

                	
                  99.6446%

                	
                  801800

                
	 
      	
                  Diane
      Bette Lapp

                	
                  12-17-2004

                	
                  3260314

                	 
      	 
      	 
      	 
      	
                  799300

                
	 
      	
                  George
      Lapp

                	
                  12-10-2004

                	
                  3264224

                	 
      	 
      	 
      	 
      	
                  779800

                
	 
      	
                  Henry
      Lapp, Jr.

                	
                  01-11-2005

                	
                  3260399

                	 
      	 
      	 
      	 
      	
                  780100

                
	 
      	
                  Jack
      J. Lapp

                	
                  12-10-2004

                	
                  3252935

                	 
      	 
      	 
      	 
      	
                  779600

                
	 
      	
                  Leland
      Lapp

                	
                  12-10-2004

                	
                  3264226

                	 
      	 
      	 
      	 
      	
                  779700

                
	 
      	
                  Dewey
      R. Holland

                	
                  12-10-2004

                	
                  3260400

                	 
      	 
      	 
      	 
      	
                  780200

                
	 
      	
                  Jesse
      L Holland, et ux

                	
                  12-17-2004

                	
                  3275988

                	 
      	 
      	 
      	 
      	
                  780000

                
	 
      	
                  Mary
      Jane Duncan

                	
                  09-19-2005

                	
                  3324226

                	 
      	 
      	 
      	 
      	
                  802500

                
	 
      	
                  Anthony
      A. Holland

                	
                  11-07-2005

                	
                  3338286

                	 
      	 
      	 
      	 
      	 
      
	 
      	
                  Holland
      Revocable Living Trust

                	
                  11-07-2005

                	
                  3338287

                	 
      	 
      	 
      	 
      	 
      

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Vega
      11-3

                	
                  Anadarko
      E & P Company. LP and Anadarko Land Corp.

                	
                  08-26-04

                	
                  3243366

                	
                  T6N,
      R64W

                  Sec.
      3: NW4NW4

                	
                  Weld

                	
                  CO

                	
                  87.1885%

                	
                  762200

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR  or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Wells
      Ranch 21-34

                	
                  Wells
      Ranch, Katherine Wells Calve and Francis J. Calve

                	
                  03-23-1988

                	
                  2136098

                	
                  T6N,
      R63W

                  Sec.
      34: NENW

                	
                  Weld

                	
                  CO

                	
                  99.6446%

                	
                  651500

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Wells
      Ranch 22-34

                	
                  Wells
      Ranch, Katherine Wells Calve and Francis J. Calve

                	
                  03-23-1988

                	
                  2136098

                	
                  T6N,
      R63W

                  Sec.
      34: SENW

                	
                  Weld

                	
                  CO

                	
                  99.6446%

                	
                  651500

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL
      NAME

                	
                  LESSOR
      or ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL
      DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Wells
      Ranch 23-27

                	
                  Anadarko
      E & P Company. LP and Anadarko Land Corporation

                	
                  08-18-2004

                	
                  3258642

                	
                  T6N,
      R63W, Sec. 27; NE4SW4

                	
                  Weld

                	
                  CO

                	
                  87.1885%

                	
                  760600

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Wells
      Ranch 24-15

                	
                  Anadarko
      E & P Company, LP and Anadarko Land Corporation

                	
                  10-07-2004

                	
                  3243367

                	
                  T6N,
      R63W

                  Sec.
      15: SE4SW4

                	
                  Weld

                	
                  CO

                	
                  87.1885%

                	
                  765800

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Wells
      Ranch 33-15

                	
                  Anadarko
      E & P Company, LP and Anadarko Land
      Corporation

                	
                  10-07-2004

                	
                  3243367

                	
                  T6N,
      R63W

                  Sec.
      15; NWSE

                	
                  Weld

                	
                  CO

                	
                  87.1885%

                	
                  765800

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Wells
      Ranch 33-27

                	
                  Anadarko
      E & P Company, LP and Anadarko Land Corporation

                	
                  08-18-2004

                	
                  3258642

                	
                  T6N,
      R63W

                  Sec.
      27: NW4SE4

                	
                  Weld

                	
                  CO

                	
                  87.1885%

                	
                  760600

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Wells
      Ranch 34-15

                	
                  Anadarko
      E & P Company, LP and Anadarko Land Corporation

                	
                  10-07-2004

                	
                  3243367

                	
                  T6N,
      R63W

                  Sec.
      15: SW4SE4

                	
                  Weld

                	
                  CO

                	
                  87.1885%

                	
                  765800

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Wells
      Ranch 34-27

                	
                  Anadarko
      E & P Company, LP and Anadarko Land Corporation

                	
                  08-18-2004

                	
                  3258642

                	
                  T6N,
      R63W

                  Sec.
      27: SW4SE4

                	
                  Weld

                	
                  CO

                	
                  87.1885%

                	
                  760600

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Wells
      Ranch 43-15

                	
                  Anadarko
      E&P Company, LP and Anadarko Land Corporation

                	
                  10-07-2004

                	
                  3243367

                	
                  T6N,
      R63W

                  Sec.
      15: NESE

                	
                  Weld

                	
                  CO

                	
                  87.1685%

                	
                  765800

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2005B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Wells
      Ranch 43-27

                	
                  Anadarko
      E & P Company, LP and Anadarko Land Corporation

                	
                  08-18-2004

                	
                  3258642

                	
                  T6N,
      R63W

                  Sec.
      27: NESE

                	
                  Weld

                	
                  CO

                	
                  87.1885%

                	
                  760600

                

        

      

      
        
           

        

        
           

          
            

          

        

        
           

        

      

      EXHIBIT
"A"

      PDC
2O05B LIMITED PARTNERSHIP

      

      
        
          	
                  WELL

                  NAME

                	
                  LESSOR
      or

                  ASSIGNOR

                	
                  LEASE

                  DATE

                	
                  RECEPTION
      NO.

                	
                  LEGAL

                  DESCRIPTION

                	
                  COUNTY

                	
                  STATE

                	
                  ASSIGNED

                  INTEREST

                	
                  LEASE
      #

                
	
                  Wells
      Ranch 44-27

                	
                  Anadarko
      E & P Company, LP and Anadarko Land Corp.

                	
                  08-18-2004

                	
                  3258642

                	
                  T6N,
      R63W

                  Sec.
      27: SE4SE4

                	
                  Weld

                	
                  CO

                	
                  87.1885%

                	
                  760600

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00153-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00153-of-00352.parquet"}]]