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

Exhibit 10.2

Howard Lake #12-9
Lease No. 762100

ASSIGNMENT OF WORKING INTEREST

This Assignment made this 7th day of September from PETROLEUM DEVELOPMENT
CORPORATION, a Nevada Corporation, (herein called "Assignor") to PDC 2004C,
Limited Partnership, (herein called "Assignee");

WITNESSETH

Assignor, for the sum of One Dollar ($1.00) and other valuable consideration,
the receipt of which is hereby acknowledged, does by these presents GRANT,
BARGAIN, SELL, EXCHANGE, CONVEY, ASSIGN, TRANSFER, SET OVER and DELIVER unto
Assignee all of the following:

1.  The specific undivided interest shown in Exhibit A in respect of each of the
oil and gas leases shown in Exhibit A, but only to the extent such leases cover
lands and depths necessary for production of the specific oil and gas well
identified in Exhibit A, This is intended to be a "wellbore assignment."
Assignee shall be entitled to receive that share of production from the well
identified in Exhibit A which is attributable to the undivided interest here
being assigned, but the Assignee shall have, as a result of this Assignment, no
interest whatsoever in any other oil and gas well, whether now existing or
hereafter drilled, which may be located on the lands described in Exhibit A or
on any land pooled therewith. Assignor expressly excepts from this Assignment
and reserves to itself, Its successors and assigns, the remainder of the lease
and the leasehold oil and gas estate, including (without limitation) the right
to produce other wells which are or may be located on the lands described in
Exhibit A and lands pooled therewith, without the obligation to account to
Assignee for any such other production.

2.  The specific undivided interest shown in Exhibit A in all valid unitization,
pooling, operating and communitization agreements, declarations and orders
involving the leasehold interests here being assigned, but only to the extent
that such agreements, declarations and orders relate to the well specifically
identified In Exhibit A and in all other respects limited to the manner as set
forth in Paragraph 1, above.

3.  The specific undivided interest shown in Exhibit A In all valid oil and gas
sales, purchase, exchange and processing contracts, but only to the extent that
such contracts relate to the well specifically identified in Exhibit A and in
all other respects limited in the manner set forth in Paragraph 1, above.

4.  The specific undivided interest shown in Exhibit A in all personal property,
improvements, lease and well equipment, easements, permits, licenses, servitudes
and rights-of-way now owned by Assignor and being used in connection with the
operation of the well specifically identified in Exhibit A or in connection with
the production, treating, storing, transportation or marketing of oil, gas and
other minerals from that well, but In all respects limited in the manner set
forth in Paragraph 1, above.

TO HAVE AND TO HOLD the interests described unto Assignee, its successors and
assigns, forever.

This Assignment is made without warranties of any type (whether of title,
merchantability or fitness for a particular use), either express or Implied, but
is made with full substitution of Assignee in all covenants and warranties
previously given or made by others, but only to the extent of the interests here
assigned. Assignor does, however, expressly intend that this Assignment convey
any title that Assignor may hereafter acquire to the extent that such
after-acquired title may be necessary to fulfill the interests herein assigned.

Assignee shall bear its proportionate share of all burdens on production now of
record and hereby assumes its proportionate share of all other obligations that
relate to the well specifically identified in Exhibit A and the production
therefrom.

Both Assignor and Assignee hereby agree to execute and deliver such additional
instruments notices, division orders, transfer orders and other documents as may
reasonably be requested by the other, and to do such other acts and things, as
may be necessary or convenient to accomplish this Assignment in the manner and
to the extent described in Paragraph 1, above.

 
 

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

 

Howard Lake #12-9
Lease No. 762100

IN WITNESS WHEREOF, Petroleum Development Corporation has executed and delivered
this instrument, with the intention that it shall be effective as of the date of
first production from the well specifically identified in Exhibit A.

 
PETROLEUM DEVELOPMENT 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 16th day of September
2004 by William D. Gainor, Land Manager of Petroleum Development Corporation, a
Nevada Corporation, for and on behalf of the Corporation. He executed the
foregoing for the purposes therein contained.

OFFICIAL SEAL
 
/s/ Rita A. Clark
Note 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

 
 

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

 

Howard Lake 12-9
Lease No. 762100

AMENDMENT TO
ASSIGNMENT OF WORKING INTEREST

THIS AMENDMENT TO ASSIGNMENT OF WORKING INTEREST is made March 8, 2006 between
Petroleum Development Corporation, a Nevada corporation, and PDC 2004-C Limited
Partnership, a West Virginia limited partnership whose address is P. O. Box 26,
Bridgeport, West Virginia 26330.

1.    Background. By this instrument, the parties correct and amend the
Assignment of Working Interest (the "Original Assignment"), dated September 7,
2004 and recorded as Instrument No, 3282449 in the real property records of Weld
County, Colorado.

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

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

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

 
PDC 2004-C LIMITED PARTNERSHIP
     
By:
Petroleum Development Corporation
             
By:
Ersel E. Morgan
   
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-C Limited Partnership, a West Virginia
limited partnership.

Witness my hand and official seal.

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

 
 
 

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

 

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

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Howard Lake 12-9
Anadarko E & P Co., LP and Anadarko Land Corp.
09-21-2004
3243321
T6N; R64W Sec. 9: SW4NW4
Weld
Colorado
0.87345125
762100

 
 

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

 

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

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Wells Ranch 14-15
Anadarko E & P Co., LP and Anadarko Land Corp.
10-07-2004
3243367
T6N, R63W Sec. 15: SW4SW4
Weld
Colorado
0.87345125
765800

 
 

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

 

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

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Cornish 11-3
Anadarko E & P Co., LP and Anadarko Land Corp.
10-13-2004
3243322
T6N, R63W Sec. 3: NW4NW4
Weld
Colorado
0.87345125
765500

 
 

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

 

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

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Erickson 34-4
William E. Erickson
02-10-2004
3173745
T6N, R64W Sec. 4: SW4SE4
Weld
Colorado
0.99823
745900

 
 

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

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

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Christiansen 34-7
Anadarko E & P Co., Inc. and Anadarko Land Corp
10-15-2004
3243320
T6N, R63W Sec. 7: SW4SE4
Weld
Colorado
0.87345125
765300

 
 

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

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

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Lawley 31-4
Shirley Lawley, et ux
07-06-2004
3208265
T6N, R64W Sec. 4: NW4NE4
Weld
Colorado
0.99823
763700
 
Jack O. Skjoldage, et vir
07-22-2004
3217731
T6N, R64W Sec. 4: PO W2NE4
     
766400
 
Louise Jane Todd
05-27-2004
3195097
       
759900
 
David A. Barrell
05-27-2004
3192850
       
759200
 
Margaret K. Look
06-02-2004
3201749
       
760900
 
Warren L. Look
09-01-2004
3228245
       
773500
 
NTB of Florida, N.A. Trustees of the J. Logan Look Trust FBO Linda Eastman
09-01-2004
3228246
       
773400

 
 

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

 

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

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Cecil 13-1
Anadarko E & P Co., Inc. and Anadarko Land Corp.
10-26-2004
3243324
T6N, R64W Sec. 1: NW4SW4
Weld
Colorado
0.87345125
765600

 
 

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

 

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

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Lawley 32-4
Shirley Lawley, et ux
07-06-2004
3208265
T6N, R64W Sec. 4: SE4SE4
Weld
Colorado
0.99823
763600
 
Jack O. Skjoldage, et vir
07-22-2004
3217731
T6N, R64W Sec. 4: PO W2NE4
     
766400
 
Louise Jane Todd
05-27-2004
3195097
       
759900
 
David A. Barrell
05-27-2004
3192850
       
759200
 
Margaret K. Look
06-02-2004
3201749
       
760900
 
Warren L. Look
09-01-2004
3228245
       
773500
 
NTB of Florida, N A. Trustees of the J, Logan Look Trust FBO Linda Eastman
09-01-2004
3228246
       
773400

 
 

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

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

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED
INTEREST
LEASE NO.
Harper 43-27
Anadarko E & P Co., Inc. and Anadarko Land Corp.
11-01-2004
3258645
T7N, R65W Sec. 27: NESE
Weld
Colorado
0.87345125
763300

 
 

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

 

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

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Lawley 44-4D
Sherry Lawley
07-06-2004
3208264
T6N, R64W Sec. 4: SE4SE4
Weld
Colorado
0.99823
763600

 
 

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

 

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

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Lang 11-35
Anadarko E & P Co., Inc. and Anadarko Land Corp.
11-08-2004
3260970
T7N, R65W Sec. 35: NW4NW4
Weld
Colorado
0.87345125
763200

 
 

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

 

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

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Heinze 44-29
Anadarko E & P Co., Inc. and Anadarko Land Corp.
11-18-2004
3274299
T7N, R64W Sec. 29: SESE
Weld
Colorado
0.87345125
765700

 
 

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

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

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST .
LEASE NO.
Phinney 33-10
Myron A. Phinney, et ux
05-10-2004
3189023
T6N, R64W Sec. 10: NW4SE4
Weld
CO
0.99823
758700
 
Walter James Henderson, III,
Randy Lee Henderson and
Rick Mark Henderson,
Successor Co-Trustees of the Walter J.
& Isobelle I. Henderson Trust
05-14-2004
3201750
       
761100
 
David Neil Bloomquist, et ux
07-22-2004
3208262
       
763400

 
 

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

 

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

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Phinney 44-10
Walter James Henderson III,
Randy Lee Henderson & Rick
Mark Henderson, Successor
Co-Trustees of the Walter J. &
Isobelle L Henderson Trust
05-14-2004
3201751
T6N, R64W Sec. 10: SE4SE4
Weld
Colorado
0.99823
761200
 
Francine H. Nealy
05-18-04
3201745
T6N, R64W Sec. 10: PO S2SE4
     
760800
 
Edward A. White
05-14-04
3189022
T6N, R64W Sec. 10: PO S2SE4
     
758600
 
Jessie White
05-14-04
3192848
TOM, R64W Sec. 10: PO S2SE4
     
759000

 
 

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

 

EXHIBIT "A"
PDC 2004-C LIMITED PARTNERSHIP

WELL NAME
LESSOR or ASSIGNOR
LEASE DATE
RECEPTION NO.
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE #
Richter 43-27
Anadarko E & P Co., LP and Anadarko Land Corp.
09-14-2004
3243365
T7N, R64W Sec. 27: NESE
Weld
CO
0.3450
764200

 
 

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

 

EXHIBIT "A"
PDC 2004-C LIMITED PARTNERSHIP

WELL NAME
LESSOR or ASSIGNOR
LEASE DATE
RECEPTION NO.
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE #
Richter 44-27
Anadarko E & P Co., LP and Anadarko Land Corp.
09-14-2004
3243365
T7N, R64W Sec. 27: SESE
Weld
CO
0.3450
764200

 
 

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

 

Chevron-Texaco #33C-12D
Lease No. 691500
 
ASSIGNMENT OF WORKING INTEREST

This Assignment made this 19th day of April 2004 from PETROLEUM DEVELOPMENT
CORPORATION, a Nevada Corporation, (herein called "Assignor") to PDC 2004C,
Limited Partnership, (herein called "Assignee");

WITNESSETH

Assignor, for the sum of One Dollar ($1.00) and other valuable consideration,
the receipt of which is hereby acknowledged, does by these presents GRANT,
BARGAIN, SELL, EXCHANGE, CONVEY, ASSIGN, TRANSFER, SET OVER and DELIVER unto
Assignee all of the following:

1.  The specific undivided interest shown in Exhibit A in respect of each of the
oil and gas leases shown in Exhibit A, but only to the extent such leases cover
lands and depths necessary for production of the specific oil and gas well
identified In Exhibit A. This is intended to be a "wellbore assignment."
Assignee shall be entitled to receive that share of production from the well
identified in Exhibit A which is attributable to the undivided interest here
being assigned, but the Assignee shall have, as a result of this Assignment, no
interest whatsoever in any other oil and gas well, whether now existing or
hereafter drilled, which may be located on the lands described in Exhibit A or
on any land pooled therewith. Assignor expressly excepts from this Assignment
and reserves to itself, its successors and assigns, the remainder of the lease
and the leasehold oil and gas estate, including (without limitation) the right
to produce other wells which are or may be located on the lands described in
Exhibit A and lands pooled therewith, without the obligation to account to
Assignee for any such other production.

2.  The specific undivided interest shown in Exhibit A in all valid unitization,
pooling, operating and communitization agreements, declarations and orders
involving the leasehold interests here being assigned, but only to the extent
that such agreements, declarations and orders relate to the well specifically
identified in Exhibit A and in all other respects limited to the manner as set
forth in Paragraph 1, above.

3.  The specific undivided interest shown in Exhibit A in all valid oil and gas
sales, purchase, exchange and processing contracts, but only to the extent that
such contracts relate to the well specifically identified in Exhibit A and in
all other respects limited in the manner set forth in Paragraph 1, above.

4.  The specific undivided interest shown in Exhibit A in all personal property,
improvements, lease and well equipment, easements, permits, licenses, servitudes
and rights-of-way now owned by Assignor and being used in connection with the
operation of the well specifically identified in Exhibit A or in connection with
the production treating, storing, transportation or marketing of oil, gas and
other minerals from that well, but in all respects limited in the manner set
forth in Paragraph 1, above.

TO HAVE AND TO HOLD the interests described unto Assignee, its successors and
assigns, forever.

This Assignment Is made without warranties of any type (whether of title,
merchantability or fitness for a particular use), either express or Implied, but
is made with full substitution of Assignee in all covenants and warranties
previously given or made by others, but only to the extent of the interests here
assigned. Assignor does, however, expressly intend that this Assignment convey
any title that Assignor may hereafter acquire to the extent that such
after-acquired title may be necessary to fulfill the interests herein assigned.

Assignee shall bear its proportionate share of all burdens on production now of
record and hereby assumes its proportionate share of all other obligations that
relate to the well specifically identified in Exhibit A and the production
therefrom.

Both Assignor and Assignee hereby agree to execute and deliver such additional
instruments, notices, division orders, transfer orders and other documents as
may reasonably be requested by the other, and to do such other acts and things,
as may be necessary or convenient to accomplish this Assignment in the manner
and to the extent described in Paragraph 1, above.

 
 

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

 

Chevron-Texaco #33C-12D
Lease No. 691500

IN WITNESS WHEREOF, Petroleum Development Corporation has executed and delivered
this instrument, with the intention that it shall be effective as of the date of
first production from the well specifically identified In Exhibit A.

 
PETROLEUM DEVELOPMENT 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 October
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
Note Public. State of West Virginia
 
Rita A. Clark
RITA A. CLARK
 
Notary Public -
State 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. Box26
Bridgeport, WV 26330
Ph: 1-800-624-3821 or 304-842-6256

 
 

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

 

AMENDMENT TO ASSIGNMENT OF WORKING INTEREST

THIS AMENDMENT TO ASSIGNMENT OF WORKING INTEREST is made March 8, 2006 between
Petroleum. Development Corporation, a Nevada corporation, and PDC 2004-C Limited
Partnership, a West Virginia limited partnership whose address is P. O. Box 26,
Bridgeport, West Virginia 26330.

1.     Background. By this instrument, the parties correct and amend the
Assignment of Working Interest (the "Original Assignment"), dated April 19, 2004
and recorded as Instrument No. 673354 in the real property records of Garfield
County, Colorado.

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

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

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

 
PDC 2004-C LIMITED PARTNERSHIP
       
By:
Petroleum Development Corporation
       
By:
/s/ Ersel E. Morgan
   
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 April of
2006, by Ersel E. Morgan, as Vice President of Petroleum Development
Corporation, the Managing General Partner of PDC 2004-C Limited Partnership, a
West Virginia limited partnership.

Witness my hand and official seal.

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

 

 
 

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

 

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

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Chevron Texaco 33C-12D
Chevron USA, Inc.
11-15-2002
623088
T6S, R97W, Sec. 12: NW4SE4
Weld
Colorado
0.99823
691500

 
 

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

 

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

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Chevron Texaco 44C-12D
Chevron USA, Inc.
11-15-2002
623088
T6S, R97W, Sec. 12: SE4SE4
Garfield
Colorado
0.99823
691500

 
 

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

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

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Chevron Texaco 43C-12D
Chevron USA, Inc.
11-15-2002
623088
T6S, R97W, Sec. 12: NE4SE4
Garfield
Colorado
0.99823
691500

 
 

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

 

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

WELL NAME
LESSOR. OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Chevron 14D-17D
Chevron USA, Inc.
11-15-2002
623086
T6S, R96W Sec. 17: SW4SW4
Garfield
Colorado
0.99823
691300

 
 

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

 

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

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Chevron 14 A-17D
Chevron USA, Inc.
11-15-2002
623086
T6S, R96W Sec. 17: SW4SW4
Garfield
Colorado
0.99823
691300

 
 

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

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

WELL NAME
LESSOR OR ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK/PAGE
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE NO.
Chevron 12A-17D
Chevron USA, Inc.
11-15-2002
Book 1447, Page 573
T6S, R96W, Sec. 17: SWNW
Garfield
Colorado
0.99823
691300

 
 

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

 

EXHIBIT "A"
PDC 2004-C LIMITED PARTNERSHIP

WELL NAME
LESSOR or ASSIGNOR
LEASE DATE
RECEPTION NO. BOOK NO.
LEGAL DESCRIPTION
COUNTY
STATE
ASSIGNED INTEREST
LEASE # API#
Puckett #43C-25
Puckett Land Company
11-15-1999
556562
T6S, R97W, Sec. 25: NESE
Garfield
CO
0.65
636800

 
 

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