--------------------------------------------------------------------------------

Exhibit 10.2

Wells Ranch #42-6
Lease No. 688000

ASSIGNMENT OF WORKING INTEREST

This Assignment made this 2nd day of May 2004 from PETROLEUM DEVELOPMENT
CORPORATION, a Nevada Corporation, (herein called "Assignor") to PDC 2004-A,
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 oft 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.

 
 

--------------------------------------------------------------------------------

 

Wells Ranch #42-5
Lease No. 669000

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 6th day of May 2004 by
William D. Galnor, Land Manager of Petroleum Development Corporation, a Nevada
Corporation, for and on behalf of the Corporation. He executed the foregoing for
the purposes therein contained.

OFFICIAL SEAL
 
/s/ Rita A. Clark
Notary Public, State of West Virginia
 
Rita A. Clark
RITA A. CLARK
 
Notary Public -
State of West Virginia
Petroleum Development Corporation
   
County of Harrison
103 East Main Street, Box 26
 
My Commission expires: June 2, 2009
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

 
 

--------------------------------------------------------------------------------

 

Wells Ranch 42-5
Lease No. 688000

AMENDMENT TO
ASSIGNMENT OF WORKING INTEREST

THIS AMENDMENT TO ASSIGNMENT OF WORKING INTEREST is made March 2, 2006 between
Petroleum Development Corporation, a Nevada corporation, and PDC 2004-A Limited
Partnership, a West Virginia limited partnership whose address is P. O. Box 26,
Bridgeport, West Virginia 26330.

1.     Background. By this instrument, the parties correct and amend the
Assignment of Working Interest (the "Original Assignment"), dated May 2, 2004
and recorded as Instrument No. 3220266 in the real property records of Weld
County, Colorado.

2.    Amendment. Petroleum Development Corporation and PDC 2004-A Limited
Partnership hereby amend the Original Assignment by deleting in its entirely the
Exhibit A that is attached to the Original Assignment and replacing it with the
Exhibit A that is attached to this instrument. All other provisions of the
Original Assignment are unchanged.

3.    Effective Date. The parties intend that this amendment be deemed effective
at the effective date of the Original Assignment, just as if the Exhibit A that
is attached to this instrument had originally been attached to the Original
Assignment.

IN WITNESS WHEREOF, this instrument has been executed by the parties.

 
PDC 2004-A LIMITED PARTNERSHIP
     
By:
Petroleum Development Corporation
     
By:
/s/ Ersel E. Morgan, Jr
   
Ersel E. Morgan, Jr. as Vice President

STATE OF WEST VIRGINIA
 
§
     
§
ss
COUNTY OF HARRISON
 
§
 

The foregoing  instrument was acknowledged before me this 5th day of April,
2006, by Ersel E. Morgan, as Vice President of Petroleum Development
Corporation, the Managing General Partner of PDC 2004-A Limited Partnership, a
West Virginia limited partnership.

Witness my hand and official seal.

OFFICIAL SEAL
 
/s/ Rita A. Clark
Notary Public, State of West Virginia
 
Rita A. Clark as Notary Public
RITA A. CLARK
 
Harrison County, West Virginia
Petroleum Development Corporation
     
103 East Main Street, Box 26
 
My Commission expires: June 2, 2009
Bridgeport, WV 26330
     
My commission expires June 2, 2009
     

 
 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A”
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 42-5
Anadarko E & P Co., LP and Anadarko Land Corp.
12-18-2002
3040480
T5N, R63W Sec. 5: SE4NE4
Weld
Colorado
0.7998344
688000

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
State 21-4
State of Colorado
06-01-1981
2153523
T5N, R63W Sec. 4: NE4NW4
Weld
Colorado
0.999793
678900

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 32-5
Anadarko E & P Co. and Anadarko Land Corp.
12-18-2002
3040480
T5N, R63W Sec. 5: SW4NE4
Weld
Colorado
0.7998344
688000

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 41-5
Anadarko E & P Co. and Anadarko Land Corp.
12-18-2002
3040480
T5N, R63W Sec. 5: NE4NE4
Weld
Colorado
0.7998344
688000

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
State 13-4
State of Colorado
06-01-1981
2153523
T5N, R63W Sec. 4: NW4SW4
Weld
Colorado
0.999793
679300

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
State 23-4
State of Colorado
06-01-1981
2153523
T5N, R63W Sec. 4: NE4SW4
Weld
Colorado
0.999793
679300

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 32-2
Wells Ranch
02-20-2004
3162341
T5N, R63W Sec. 2: SW4NE4
Weld
Colorado
0.999793
687600

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Cattleman 24-31D
Farr Farms Company
11-18-1981
1876411
T6N, R64W Sec. 31: SE4SW4
Weld
Colorado
0.999793
639700

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 12-3
Anadarko E & P Co. and Anadarko Land Corp,
11-28-2002
3030427
T5N, R63W Sec. 3: SW4NW4
Weld
Colorado
0.7998344
691100

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Cattleman 14-31D
Farr Farms Company
11-18-1981
1876411
T6N, R64W Sec. 31: SW4SW4
Weld
Colorado
0.999793
639700

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 21-3
Anadarko E & P Co. and Anadarko Land Corp.
11-28-2002
3030427
T5N, R63W Sec. 3: NE4NW4
Weld
Colorado
0.7998344
691100

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 41-3
Anadarko E & P Co. and Anadarko Land Corp.
11-28-2002
3030427
T5N, R63W Sec. 3: NE4NE4
Weld
Colorado
0.7998344
691100

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Cattleman 23-31D
Farr Farms Company
11-18-1981
1876411
T6N, R64W Sec. 31: NE4SW4
Weld
Colorado
0.999793
639700

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 13-11
Anadarko E & P Company
05-05-2003
3158654
T5N, R63W Sec. 11: NW4SW4
Weld
Colorado
0.7998344
688200

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 24-11
Anadarko E & P Co.
05-05-2003
3158654
T5N, R63W Sec. 11: SE4SW4
Weld
Colorado
0.7998344
688200

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Cattleman 13-31D
Farr Farms Company
11-18-1981
1876411
T6N, R64W Sec. 31: NW4SW4
Weld
Colorado
0.999793
639700

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 14-11
Anadarko E & P Co. and Anadarko Land Corp.
05-05-2003
3158654
T5N, R63W Sec. 11: SW4SW4
Weld
Colorado
0.7998344
688200

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 24-1
Anadarko E & P Co. and Anadarko Land Corp.
10-03-2003
3230201
T5N, R63W Sec. 1: SESW
Weld
Colorado
0.799S344
691000

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 24-33
Anadarko E & P Co. and Anadarko Land Corp.
12-23-2002
3225680
T6N, R63W Sec. 33: SESW
Weld
Colorado
0.7998344
688400

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 23-1
Anadarko E & P Co. and Anadarko Land Corp.
10-03-2003
3230201
T5N, R63W Sec. 1: NE4SW4
Weld
Colorado
0.7998344
691000

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 23-34
Wells Ranch
03-23-1988
2136098
T6N, R63W Sec. 34: NESW
Weld
Colorado
0.999793
651500

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 23-33
Anadarko E & P Co. and Anadarko Land Corp.
12-23-2002
3225680
T6N,R63WSec. 33:NESW
Weld
Colorado
0.7998344
688400

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 24-34
Wells Ranch
03-23-1988
2136098
T6N, R63W Sec. 34: SESW
Weld
Colorado
0.999793
651500

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 13-33
Anadarko E & P Co. and Anadarko Land Corp.
12-23-2002
3225680
T6N, R63W Sec. 33: NWSW
Weld
Colorado
0.7998344
688400

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 34-34
Wells Ranch
03-23-1988
2136098
T6N, R63W Sec. 34: SW4SE4
Weld
Colorado
0.999793
651500

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 33-34
Wells Ranch
03-23-1988
2136098
T6N, R63W Sec. 34: NW4SE4
Weld
Colorado
0.999793
651500

 
 

--------------------------------------------------------------------------------

 

Chevron Texaco#24C-12D
Lease No. 691300

ASSIGNMENT OF WORKING INTEREST

This Assignment made this 13th day of May, 2004 from PETROLEUM DEVELOPMENT
CORPORATION, a Nevada Corporation, (herein called "Assignor"} to PDC 2004-A,
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 "wellborn assignment."
Assignee shall be entitled to receive that share of production from the well
identified in Exhibit A which is attributable to the undivided interest here
being assigned, but the Assignee shall have, as a result of this Assignment, no
interest whatsoever in any other oil and gas well, whether now existing or
hereafter drilled, which may be located on the lands described in Exhibit A or
on any land pooled therewith. Assignor expressly excepts from this Assignment
and reserves to itself, its successors and assigns, the remainder of the lease
and the leasehold oil and gas estate, including (without limitation) the right
to produce other wells which are or may be located on the lands described in
Exhibit A and lands pooled therewith, without the obligation to account to
Assignee for any such other production.
 
2.  The specific undivided interest shown in Exhibit A in all valid unitization,
pooling, operating and communitization agreements, declarations and orders
involving the leasehold interests here being assigned, but only to the extent
that such agreements, declarations and orders relate to the well specifically
Identified In Exhibit A and In all other respects limited to the manner as set
forth in Paragraph 1,above.
 
3.  The specific undivided interest shown in Exhibit A in all valid oil and gas
sales, purchase, exchange and processing contracts, but only to the extent that
such contracts relate to the well specifically identified in Exhibit A and in
all other respects limited in the manner set forth in Paragraph 1, above.
 
4. The specific undivided interest shown in Exhibit A in all personal property,
improvements, lease and well equipment, easements, permits, licenses, servitudes
and rights-of-way now owned by Assignor and being used in connection with the
operation of the well specifically identified in Exhibit A or In connection with
the production, treating, storing, transportation or marketing of oil, gas and
other minerals from that well, but in all respects limited in the manner set
forth In Paragraph 1, above.
 
TO HAVE AND TO HOLD the interests described unto Assignee, its successors and
assigns, forever.
 
This Assignment is made without warranties of any type (whether of title,
merchantability or fitness for a particular use), either express or implied, but
is made with full substitution of Assignee in all covenants and warranties
previously given or made by others, but only to the extent of the interests here
assigned. Assignor does, however, expressly intend that this Assignment convey
any title that Assignor may hereafter acquire to the extent that such
after-acquired title may be necessary to fulfill the interests herein assigned.
 
Assignee shall bear its proportionate share of all burdens on production now of
record and hereby assumes its proportionate share of all other obligations that
relate to the well specifically identified In Exhibit A and the production
therefrom.
 
Both Assignor and Assignee hereby agree to execute and deliver such additional
instruments, notices, division orders, transfer orders and other documents as
may reasonably be requested by the other, and to do such other acts and things,
as may be necessary or convenient to accomplish this Assignment in the manner
and to the extent described in Paragraph 1, above.

 
 

--------------------------------------------------------------------------------

 

Chevron Texaco #24C-12D
Lease No. 691300

IN WITNESS WHEREOF, Petroleum Development Corporation hag 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 13th day of May 2004 by
William D. Gainor, Land Manager of Petroleum Development Corporation, a Nevada
Corporation, for and on behalf of the Corporation. He executed the foregoing for
the purposes therein contained.

OFFICIAL SEAL
 
/s/ Rita A. Clark
Notary Public, State of West Virginia
 
Rita A. Clark
RITA A. CLARK
 
Notary Public -
State of West Virginia
Petroleum Development Corporation
   
County of Harrison
103 East Main Street, Box 26
 
My Commission expires: June 2, 2009
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: 1-800-624-3621 or 304-842-6256

 
 

--------------------------------------------------------------------------------

 

Chevron Texaco 24C-12D
Lease No. 691300

AMENDED ASSIGNMENT OF WORKING INTEREST

This Amended Assignment of Working Interest made March 2, 2006,2006 from
PETROLEUM DEVELOPMENT CORPORATION, a Nevada Corporation, (herein called
"Assignor") to PDC 2004-A, Limited Partnership, (herein called "Assignee");

WHEREAS: Petroleum Development Corporation has made two separate Assignments of
Working Interest to the PDC 2004-A Limited Partnership as set forth below:

 
a.
Assignment of Working Interest dated May 13, 2004 and recorded as Instrument No.
661507 in the real property records of Garfield County, Colorado.

 
b.
Assignment of Working Interest dated December 8, 2004 and recorded as Instrument
No. 665532 in the real property records of Garfield County, Colorado.

WHEREAS: It is the intent of this Amended Assignment of Working Interest that
Petroleum Development Corporation correct, replace and supercede any past
Assignments of Working Interest to the PDC 2004-A Limited Partnership in
relation to wells and interests listed on the respective Exhibit A's to the
assignments.

NOW THEREFORE: Petroleum Development Corporation hereby replaces, in their
entirety, the above listed Assignments of Working Interest and replaces both
instruments with this Amended Assignment of Working Interest as set forth by the
terms and conditions listed below.

3.   Effective Date. The parlies intend that this amendment be deemed effective
at the effective date of the Original Assignment, just as if the Exhibit A that
is attached to this instrument had originally been attached to the Original
Assignment.
 
IN WITNESS WHEREOF, this instrument has been executed by the parties.

 
PDC 2004-A LIMITED PARTNERSHIP
       
By:
Petroleum Development Corporation
       
By:
/s/ Ersel E. Morgan, Jr
   
Ersel E. Morgan, Jr as Vice President

 
STATE OF WEST VIRGINIA
 
§
     
§
ss.
COUNTY OF HARRISON
 
§
 

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

   
/s/ Rita A. Clark
   
Rita A. Clark as Notary Public
   
Harrison County, West Virginia
   
My Commission expires: June 2, 2009

 
 

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EXHIBIT "A"
AMENDED ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Chevron Texaco 24C-12D
Chevron USA, Inc.
05-12-2002
614407
T6S, R97W Sec. 12: SE4SW4
Garfield
Colorado
0.199793
691300

 
 

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EXHIBIT WA"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Puckett 238-25
Puckett Land Company
11-15-1999
586562
T6S, R97W Sec. 25: SE4SW4
Garfield
Colorado
0.999793
636800

 
 

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EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Puckett 11C-17D
Puckett Land Company
11-15-1999
556562
T7S, R96W Sec. 17: NW4NW4
Garfield
Colorado
0.999793
636800

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Puckett 21C-25
Puckett Land Company
11-15-1999
556562
T6S, R97W Sec. 25: NE4NW4
Garfield
Colorado
0.999793
636800

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR, OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Puckett 21C-17D
Puckett Land Company
11-15-1999
556562
T7S, R96W Sec. 17: NE4NW4
Garfield
Colorado
0.999793
636800

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR. OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Puckett 33C-25
Puckett Land Company
11-15-1999
556562
T6S, R97W Sec. 25: NW4SE4
Garfield
Colorado
0.999793
636800

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Puckett 22C-17D
Puckett Land Company
11-15-1999
556562
T7S, R96W Sec. 17: SE4NW4
Weld
Colorado
0.999793
636800

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Puckett 22B-1
Puckett Land Company
11-15-1999
556562
T7S, R97W Sec 1: SE4NW4
Garfield
Colorado
0.999793
636800

 
 

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EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Puckett 34C-25
Puckett Land Company
11-15-1999
556562
T6S, R97W Sec 25:SWSE
Garfield
Colorado
0.999793
636800

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDMENT TO ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Puckett 31-36
Puckett Land Company
11-15-1999
556562
T6S, R97W Sec 36: NW4NE4
Garfield
Colorado
0.999793
636800

 
 

--------------------------------------------------------------------------------

 

EXHIBIT "A"
AMENDED ASSIGNMENT OF WORKING INTEREST PDC 2004-A LIMITED PARTNERSHIP

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Puckett 43C-25
Puckett Land Company
11-15-1999
556562
T6S, 97W, Sec 25: NESE
Garfield
Colorado
0.99793
636800

 

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