Exhibit 10.2




Chevron #12-7D
Lease No. 691300

 


ASSIGNMENT OF WORKING INTEREST

 

This Assignment made this 22nd day of August 2003 from PETROLEUM DEVELOPMENT CORPORATION, a Nevada Corporation, (herein called "Assignor") to
PDC 2003-C, 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 comrnunitization 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 #12-7D

Lease No. 691300

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.
  



 

 

 










 












AMENDMENT TO
ASSIGNMENT OF WORKING INTEREST

THIS AMENDMENT TO
ASSIGNMENT OF WORKING INTEREST is made February 15, 2006 between Petroleum
Development Corporation, a Nevada corporation, and PDC 2003-C Limited
Partnership, a West Virginia limited partnership whose address is P. O. Box 26, Bridgeport, West
Virginia 26330.

1. Background. By this instrument, the parties
correct and amend the Assignment of Working Interest (the "Original
Assignment"), dated August 22, 2003 and recorded as Instrument No. 649940 in the real property records of Garfield County, Colorado.

      2. Amendment. Petroleum Development
Corporation and PDC 2003-C Limited Partnership hereby amend the Original ,Assignment by deleting in its entirety the Exhibit
A that is attached to the Original
Assignment and replacing it with the Exhibit A that is attached to this instrument.
All other provisions of the Original Assignment are unchanged.

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

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

 



 

 










 











 

 

EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	
		Chevron 12-7D	
		Chevron USA, Inc.	
		11-15-2002	
		623086	
		T6S, R96W, Sec. 7:SW4NW4	
		Garfield	
		Colorado	
		1.00	691300


 

 

 

 


 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	
		Chevron 22A-17D	
		Chevron USA, Inc.	
		11-15-2002	
		623086	
		T6S, R96W, Sec. 17:SENW	
		Garfield	
		Colorado	
		1.00	691300


 

 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	
		Chevron 21C-17D	
		Chevron USA, Inc.	
		11-15-2002	
		623086	
		T6S, R96W, Sec. 17:NENW	
		Garfield	
		Colorado	
		1.00	691300


 

 

 


	


 



 

EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	Chevron 23-7D	
		Chevron USA, Inc.	11-15-2002	623086	
		T6S, R96W, Sec. 7:NESW	Garfield	Colorado	0.40	691300


 

 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	Chevron 22-8D	
		Chevron USA, Inc.	11-15-2002	623086	
		T6S, R96W, Sec. 8 :SE4NW4	Garfield	Colorado	0.85	687400


 

 

 

 

 


	


 



 



ASSIGNMENT
OF WORKING INTEREST


This Assignment made this 13th day of  November 2003 from PETROLEUM DEVELOPMENT CORPORATION, a Nevada
Corporation, (herein called "Assignor") to PDC
2003-C, 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.

 

 

 

 


	


 



 

               
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.

 




 

 

 


	


 



 

AMENDMENT TO 

ASSIGNMENT OF WORKING INTEREST

 



THIS AMENDMENT TO
ASSIGNMENT OF WORKING INTEREST is made February
16, 2006 between Petroleum Development Corporation, a Nevada corporation, and PDC 2003-C Limited Partnership, a West Virginia limited partnership whose
address is P. 0. 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
November 12, 2003 and recorded as Instrument No. 3169805 in the real property records of Weld
County, Colorado.

2.  Amendment. 
Petroleum Development Corporation and PDC 2003-C Limited Partnership hereby
amend the Original Assignment by deleting in its entirety the Exhibit A that is
attached to the Original Assignment and replacing it with the Exhibit A that is
attached to this instrument.  All other provisions of the Original
Assignment are unchanged.

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

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

 




 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	
		Edwards 43-9	
		Chevron USA, Inc.	
		03-14-2001	
		2885962	
		T5N, R67W Sec 9: NESE	Weld	
		Colorado	
		0.80	654100


 

 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	J & L Farms 32-30	J & L Farms	03-23-1988	2136094/1190	T6N, R63W Sec. 30:SW4NE4	Weld	Colorado	1.0	729600


 

 

 

 

 



	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	Edwards 44-9	RME Land Corporation	03-14-2001	2885962	T5N, R67W Sec 9: SE4SE4	Weld	Colorado	0.80	654100


 

 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	J & L Farms 31-30	J & L Farms	03-23-1988	2136094/1190	T6N, R63W Sec. 30: NW4NE4	Weld	Colorado	1.0	729600


 

 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	Edwards 34-9	RME Land Corporation	03-14-2001	2885962	T5N, R67W Sec 9: SW4SE4	Weld	Colorado	0.80	654100


 

 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	National Hog Farm 24-9	RME Land Corporation	06-11-2001	2911643	T5N, R63W Sec 9: SE4SW4	Weld 	Colorado	0.80	656000


 

 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	B. Johnson 11-11	Anadarko E & P Co., LP and
		

		Anadarko Land Corp.	12-27-2002	3243364	T6N, R65W Sec. 11:NW4NW4	Weld	Colorado	1.00	688300


 

 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	National Hog Farm 21-9	RME Land Corporation	06-11-2001	2911643	T5N, R63W Sec 9: NE4NW4	Weld	Colorado	0.80	656000


 

 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	B. Johnson 12-11	Anadarko E & P Co., LP and
		

		Anadarko Land Corp.	12-27-2002	3243364	T6N, R65W Sec 11: SW4NW4	Weld	Colorado	1.00	688300


 

 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	Kerbs 23-15	Anadarko E & P Co., LP and
		

		Anadarko Land Corp.	12-20-2002	3040479	T6N, R64W Sec.15: NE4SW4	Weld	Colorado	1.00	688100


 

 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	Booth 34-35	Anadarko E & P Co., LP	12-04-2002	3040481	T7N, R65W Sec. 35: SWSE	Weld	Colorado	1.00	687800


 

 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	Kerbs 24-15	Anadarko E & P Co., LP and
		

		Anadarko Land Corp.	12-20-2002	3040479	T6N, R64W Sec 15: SE4SW4	Weld	Colorado	1.00	688100


 

 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	Booth 43-35	Anadarko E & P Co., LP
			12-04-2002	3040481	T7N, R65W Sec. 35: NESE	Weld	Colorado	1.00	687800


 

 

 

 


	


 



 

EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	Booth 33-35	Anadarko E & P Company.,
		LP 	12-04-2002	3040481	T7N, R65W Sec. 35: NWSE	Weld	Colorado	1.00	687800


 

 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	Gaddis 41-36	The Gaddis Family

		Registered Limited Liability

		Limited Partnership	11-01-2001	2949208	T4N, R68W Sec 36: NENE	Weld	Colorado	1.00	683300


 

 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	Booth 44-35	Anadarko E & P Company.,
		LP	12-04-2002	3040481	T7N, R65W Sec 35: SESE	Weld	Colorado	1.00	687800


 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	LEASE NO.
	Gaddis 32-36	The Gaddis Family
		Registered Limited

		Liability Limited Partnership	11-01-2001	2949208	T4N, R68W
		Sec. 36: SWNE	Weld	Colorado	1.0	683300
	Booth Land & Livestock
		Company	10-22-2002	3159884	736500
	Ronald L. Morris and
		Nanette L. Morris	11-18-2001	2926205	686300


 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	
		LEASE NO.
	
		Carlson 43-7	Roy I.
		Carlson	03-10-1987	2092475	
		T6N, R64W Sec. 7: NESE	
		Weld	
		Colorado	
		1.00	730300
	Robert L.
		Carlson	12-08-1981	1876779


 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	
		LEASE NO.
	Booth 23-35	Anadarko E &
		P Company., LP	12-04-2002	3040481	T7N, R65W
		Sec. 35: NE4SW4	Weld	Colorado	1.0	687800


 

 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	
		LEASE NO.
	Booth 14-35	Anadarko E &
		P Company., LP	12-04-2002	3040481	T7N, R65W
		Sec. 35: SWSW	Weld	Colorado	1.0	687800


 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	
		LEASE NO.
	Richter
		43-27	Anadarko E &
		P Co., LP

		and Anadarko Land Corp.	09-14-2004	3243365	T7N, R64W
		Sec. 27: NESE	Weld	CO	0.385000	764200


 

 

 


	


 



EXHIBIT "A"

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

PDC 2003-C LIMITED PARTNERSHIP

 

	
		WELL NAME	
		LESSOR OR ASSIGNOR	
		LEASE DATE	
		RECEPTION NO.

		BOOK/PAGE	
		LEGAL DESCRIPTION	
		COUNTY	
		STATE	
		ASSIGNED 

		INTEREST	
		LEASE NO.
	Richter
		44-27	Anadarko E &
		P Co., LP

		and Anadarko Land Corp.	09-14-2004	3243365	T7N, R64W
		Sec. 27: SESE	Weld	Co	0.385000	764200