----

----

|   | PETROLEUM DEVELOPMENT CORPORATION |
|--------|-----------------------------------|
|   | A Nevada Corporation         |
|   | BY:                               | /s/ William Gainor |
|   |                              | William D. Gainor Land Manager |

| STATE OF WEST VIRGINIA | ) |    |
|------------------------|---|---------|
|                   | ) | TO-WIT: |
| COUNTY OF HARRISON     | ) |    |

|   | OFFICIAL SEAL                         |   |   |
|--------|---------------------------------------|--------|--------|
|   | Notary Public. State of West Virginia |   |   |
|   | RITA A. CLARK                         |   |   |
|   | Petroleum Development Corporation     |   |   |
|   | 103 East Main Street, Box 26          |   |   |
|   | Bridgeport, WV 26330                  |   |   |
|   | My commission expires June 2, 2009    |   |   |

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

----

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

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

|   | OFFICIAL SEAL                         |   |   |
|--------|---------------------------------------|--------|--------|
|   | Notary Public. State of West Virginia |   |   |
|   | RITA A. CLARK                         |   |   |
|   | Petroleum Development Corporation     |   |   |
|   | 103 East Main Street, Box 26          |   |   |
|   | Bridgeport, WV 26330                  |   |   |
|   | My commission expires June 2, 2009    |   |   |

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

----

| WELL NAME         | LESSOR OR ASSIGNOR                         | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION         | COUNTY | STATE    | ASSIGNED INTEREST | LEASE NO. |
|-------------------|--------------------------------------------|------------|-------------------------|---------------------------|--------|----------|-------------------|-----------|
| Stonebraker 42-28 | Ann M. Stonebraker and William Stonebraker | 09-01-2003 | 3105458                 | T2N, R64W Sec. 28: SE4NE4 | Weld   | Colorado | 0.99848           | 683900    |

----

| WELL NAME              | LESSOR or ASSIGNOR                                          | LEASE DATE | RECEPTION NO. | LEGAL DESCRIPTION         | COUNTY | STATE | ASSIGNED INTEREST | LEASE # |
|------------------------|-------------------------------------------------------------|------------|---------------|---------------------------|--------|-------|-------------------|---------|
| J & L Farms #32-19 | Anadarko E & P Company, LP andAnadarko Land Corporation | 11-29-2004 | 3274292       | T6N, R63W Sec. 19: SW4NE4 | Weld   | CO    | 0.87367           | 762000  |

----

| WELL NAME       | LESSOR or ASSIGNOR                               | LEASE DATE | RECEPTION NO. BOOK NO. | LEGALDESCRIPTION         | COUNTY | STATE | ASSIGNED INTEREST | LEASE NO |
|-----------------|--------------------------------------------------|------------|------------------------|--------------------------|--------|-------|-------------------|----------|
| Fabrizius #41-1 | Anadarko E&P Co., LP and Anadarko Land Corp. | 12-01-2004 | 3274293                | T6N, R65W Sec. 1: NE4NE4 | Weld   | CO    | 0.87367           | 763100   |

----

| WELL NAME         | LESSOR OR ASSIGNOR                         | LEASE DATE. | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION         | COUNTY | STATE    | ASSIGNED INTEREST | LEASE NO. |
|-------------------|--------------------------------------------|-------------|-------------------------|---------------------------|--------|----------|-------------------|-----------|
| Stonebraker 32-28 | Ann M. Stonebraker and William Stonebraker | 09-01-2003  | 3105458                 | T2N, R64W Sec. 28: SW4NE4 | Weld   | Colorado | 0.99848           | 683900    |

----

| WELL NAME     | LESSOR or ASSIGNOR                                       | LEASE DATE | RECEPTION NO. BOOK NO. | LEGAL DESCRIPTION       | COUNTY | STATE | ASSIGNED INTEREST | LEASE# API# |
|---------------|----------------------------------------------------------|------------|------------------------|-------------------------|--------|-------|-------------------|-------------|
| Uyemura 33-31 | Anadarko E&P Company, LP and Anadarko Land Corp | 02-06-2004 | 3225684                | T7N, R64W Sec. 31: NWSE | Weld   | CO    | 0.798784          | 731400      |

----

| WELL NAME       | LESSOR or ASSIGNOR                                   | LEASE DATE | RECEPTION NO. BOOK NO. | LEGALDESCRIPTION          | COUNTY | STATE | ASSIGNED INTEREST | LEASE # |
|-----------------|------------------------------------------------------|------------|------------------------|---------------------------|--------|-------|-------------------|---------|
| Pfenning #44-31 | Anadarko E&P Company, LP and Anadarko Land Corp. | 02-06-2004 | 3225684                | T7N, R64W Sec. 31: SE4SE4 | Weld   | CO    | 0.798784          | 731400  |

----

| WELL NAME   | LESSOR OR ASSIGNOR                   | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION         | COUNTY | STATE    | ASSIGNED INTEREST | LEASE NO. |
|-------------|--------------------------------------|------------|-------------------------|---------------------------|--------|----------|-------------------|-----------|
| Cecil 11-12 | Stephen W. Cecil and Joanna M. Cecil | 05-20-2004 | 3192852                 | T6N, R64W Sec. 12: NW4NW4 | Weld   | Colorado | 0.99848           | 759400    |

----

| WELL NAME       | LESSOR or ASSIGNOR                                        | LEASE DATE | RECEPTION NO. BOOK NO. | LEGALDESCRIPTION          | COUNTY | STATE | ASSIGNED INTEREST | LEASE # |
|-----------------|-----------------------------------------------------------|------------|------------------------|---------------------------|--------|-------|-------------------|---------|
| Pfenning #43-31 | Anadarko E&P Company, LP and Anadarko Land Corp. | 02-06-2004 | 3225684                | T7N, R64W Sec. 31: NE4SE4 | Weld   | CO    | 0.798784          | 731400  |

----

| WELL NAME   | LESSOR OR ASSIGNOR                   | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION         | COUNTY | STATE    | ASSIGNED INTEREST | LEASE NO. |
|-------------|--------------------------------------|------------|-------------------------|---------------------------|--------|----------|-------------------|-----------|
| Cecil 21-12 | Stephen W. Cecil and Joanna M. Cecil | 05-20-2004 | 3192852                 | T6N, R64W Sec. 12: NE4NW4 | Weld   | Colorado | 0.99848           | 759400    |

----

| WELL NAME    | LESSOR OR ASSIGNOR                                                                                    | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION            | COUNTY | STATE    | ASSIGNED INTEREST | LEASE NO. |
|--------------|-------------------------------------------------------------------------------------------------------|------------|-------------------------|------------------------------|--------|----------|-------------------|-----------|
| Barrell-41-4 | David A. Barrell                                                                                      | 05-27-2004 | 3192850                 | T6N, R64W Sec. 4: NE4NE4     | Weld   | Colorado | 0.99848           | 759200    |
|         | Louise J. Todd                                                                                        | 05-27-2004 | 3195097                 | T6N,R64WSec. 4: E2NE4        |   |     |              | 760000    |
|         | Margaret K. Look                                                                                      | 06-02-2004 | 3201749                 |  6N, 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    |

----

| WELL NAME   | LESSOR OR ASSIGNOR                                                           | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION         | COUNTY | STATE    | ASSIGNED INTEREST | LEASE NO. |
|-------------|------------------------------------------------------------------------------|------------|-------------------------|---------------------------|--------|----------|-------------------|-----------|
| Riggs 43-16 | Ressie M. Riggs                                                              | 10-31-1986 | 2079780                 | T6N, R65W Sec. 16: NE4SE4 | Weld   | Colorado | 0.99848           | 730800    |
|        | Ressie M. Riggs, by William 0. Riggs, AIF                                    | 10-26-1989 | 2196506                 |                      |   |     |              |      |
|        | Ressie M. Riggs                                                              | 02-23-1990 | 2206103                 |                      |   |     |              |      |
|        | Melvin T. Bickling, et ux                                                    | 02-23-1981 | 1870971                 |                      |   |     |              |      |
|        | Marjorie A. Norris, et vir, Fred Cozzins, Jr., et ux, Charles Cozzins, et ux | 08-07-1982 | 1953448                 |                      |   |     |              |      |

----

| WELL NAME    | LESSOR OR ASSIGNOR        | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION                  | COUNTY | STATE    | ASSIGNED INTEREST | LEASE NO. |
|--------------|---------------------------|------------|-------------------------|------------------------------------|--------|----------|-------------------|-----------|
| Francis 11-8 | Sharon A. Bonnell, et vir | 07-22-2004 | 32177125                | T6N, R64W Sec. 8: PO NW4           | Weld   | Colorado | 0.99848           | 766600    |
|         | DK & F Investments    | 07-06-2004 | 3226023                 | T6N, R64W Sec. 8: NW4 w/exceptions |   |     |              | 772800    |
|         | Sharon Bonnell            | 07-30-2004 | 3217721                 | T6N, R64W Sec. 8: PO NW4           |   |     |              | 766900    |
|         | Betty Jean Ferrin         | 07-30-2004 | 3217722                 | T6N, R64W Sec. 8: PO NW4           |   |     |              | 766800    |
|         | Marvin Dean Meissinger    | 07-30-2004 | 3217723                 | T6N, R64W Sec. 8: PO NW4           |   |     |              | 766700    |

----

| WELL NAME     | LESSOR OR ASSIGNOR        | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION         | COUNTY | STATE    | ASSIGNED INTEREST | LEASE NO. |
|---------------|---------------------------|------------|-------------------------|---------------------------|--------|----------|-------------------|-----------|
| Wolfrum 42-10 | Jimmie L. Wolfrum, et ux  | 05-12-2004 | 3192851                 | T6N, R64W Sec. 10: SE4NE4 | Weld   | Colorado | 0.99848           | 759300    |
|          | Arnold C. Hoffman, et ux. | 04-22-2004 | 3179779                 | T6N, R64W Sec. 10: S2NE4  |   |     |              | 755100    |

----

| WELL NAME    | LESSOR OR ASSIGNOR   | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION        | COUNTY | STATE    | ASSIGNED INTEREST | LEASE NO. |
|--------------|----------------------|------------|-------------------------|--------------------------|--------|----------|-------------------|-----------|
| Francis 22-8 | DK&F Investments | 07-06-2004 | 3226023                 | T6N, R64W Sec. 8: SE4NW4 | Weld   | Colorado | 0.99848           | 772800    |

----

| WELL NAME   | LESSOR OR ASSIGNOR                                                         | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION                | COUNTY | STATE    | ASSIGNED INTEREST | LEASE NO. |
|-------------|----------------------------------------------------------------------------|------------|-------------------------|----------------------------------|--------|----------|-------------------|-----------|
| Adams 31-10 | June A. Adams                                                              | 04-22-2004 | 3189021                 | T6N, R64W Sec. 10: NW4NE4        | Weld   | Colorado | 0.99848           | 758500    |
|        | Alice L. Heidenreich, Jack 0. Heidenreich and Pamela L. Heidenreich, et ux | 04-22-2004 | 3184274                 | T6N, R64W Sec. 10: N2NE4         |   |     |              |      |
|        | Arnold C. HoffmanAnd Donna J. Hoffman, et ux                               | 04-22-2004 | 3179778                 | T6N,R64W Sec. 10: Sec. 10: N2NE4 |   |     |              |      |

----

| WELL NAME         | LESSOR OR ASSIGNOR                                                      | LEASE DATE  | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION       | COUNTY | STATE | ASSIGNED INTEREST | LEASE NO. |
|-------------------|-------------------------------------------------------------------------|-------------|-------------------------|-------------------------|--------|-------|-------------------|-----------|
| Wells Ranch 13-20 | Steven T. Wells and Teresa L. Wells, his wife And Katherine Wells Calve | 11 -14-2003 | 3144988                 | T6N, R63W Sec. 20: NWSW | Weld   | CO    | 0.99848           | 731500    |

----

| WELL NAME  | LESSOR OR ASSIGNOR                 | LEASE DATE | RECEPTION NO, BOOK/PAGE | LEGAL DESCRIPTION        | COUNTY | STATE    | ASSIGNED INTEREST | LEASE NO. |
|------------|------------------------------------|------------|-------------------------|--------------------------|--------|----------|-------------------|-----------|
| Moody 12-6 | J. Gale Moody and Valerie A. Moody | 03-12-2004 | 3163796                 | T6N, R64W Sec. 6: SW4NW4 | Weld   | Colorado | 0.99848           | 737800    |

----

| WELL NAME         | LESSOR OR ASSIGNOR                                                      | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION       | COUNTY | STATE | ASSIGNED INTEREST | LEASE NO. |
|-------------------|-------------------------------------------------------------------------|------------|-------------------------|-------------------------|--------|-------|-------------------|-----------|
| Wells Ranch 24-20 | Steven T. Wells and Teresa L. Wells, his wife And Katherine Wells Calve | 11-14-2003 | 3144988                 | T6N, R63W Sec. 20: SESW | Weld   | CO    | 0.99848           | 731500    |

----

| WELL NAME         | LESSOR OR ASSIGNOR                                                  | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION          | COUNTY | STATE | ASSIGNED INTEREST | LEASE NO. |
|-------------------|---------------------------------------------------------------------|------------|-------------------------|----------------------------|--------|-------|-------------------|-----------|
| Wells Ranch 43-34 | Wells Ranch, a generalpartnership and Katherine Wells Calve, et vir | 03-23-1988 | 2136098                 | T6N, R63W, Sec. 34: NE4SE4 | Weld   | CO    | 0.99848           | 651500    |

----

| WELL NAME  | LESSOR OR ASSIGNOR                 | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION        | COUNTY | STATE    | ASSIGNED INTEREST | LEASE NO. |
|------------|------------------------------------|------------|-------------------------|--------------------------|--------|----------|-------------------|-----------|
| Moody 22-6 | J. Gale Moody and Valerie A. Moody | 03-12-2004 | 3163796                 | T6N, R64W Sec. 6: SE4NW4 | Weld   | Colorado | 0.99848           | 737800    |

----

| WELL NAME         | LESSOR OR ASSIGNOR                                         | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION          | COUNTY | STATE | ASSIGNED INTEREST | LEASE NO. |
|-------------------|------------------------------------------------------------|------------|-------------------------|----------------------------|--------|-------|-------------------|-----------|
| Wells Ranch 44-34 | Wells Ranch, a generalpartership and Katherine Wells Calve | 03-23-1988 | 2136098                 | T6N, R63W, Sec. 63: SE4SE4 | Weld   | CO    | 0.99848           | 651500    |

----

| WELL NAME  | LESSOR OR ASSIGNOR         | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION         | COUNTY | STATE  | ASSIGNED INTEREST | LEASE NO. |
|------------|----------------------------|------------|-------------------------|---------------------------|--------|--------|-------------------|-----------|
| Kreps 33-6 | David Kreps, Jr.           | 10-29-2000 | 2803092                 | T6N, R64W, Sec. 6: NW4SE4 | Weld   | CO     | 0.99848           | 658600    |
|       | Elmer C. Rossman           | 10-24-2000 | 2803089                 |                      |   |   |              | 658900    |
|       | Alfred J. Greenwalt, et ux | 11-06-2000 | 2808947                 |                      |   |   |              | 659800    |
|       | Dorothy R. Hoff            | 10-27-2000 | 2803090                 |                      |   |   |              | 658800    |
|       | Marion Forbes              | 10-25-2000 | 2803091                 |                      |   |   |              | 658700    |

----

| WELL NAME         | LESSOR OR ASSIGNOR                                                    | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION         | COUNTY | STATE | ASSIGNED INTEREST | LEASE NO. |
|-------------------|-----------------------------------------------------------------------|------------|-------------------------|---------------------------|--------|-------|-------------------|-----------|
| Wells Ranch 14-14 | Wells Ranch, a Colorado General Partnership and Katherine Wells Calve | 11-14-2003 | 3130700                 | T5N, R63W Sec. 14: SW4SW4 | Weld   | CO    | 0.99848           | 687700    |

----

| WELL NAME  | LESSOR OR ASSIGNOR         | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION         | COUNTY | STATE  | ASSIGNED INTEREST | LEASE NO. |
|------------|----------------------------|------------|-------------------------|---------------------------|--------|--------|-------------------|-----------|
| Kreps 43-6 | David Kreps, Jr.           | 10-29-2000 | 2803092                 | T6N, R64W, Sec. 6: NE4SE4 | Weld   | CO     | 0.99848           | 658600    |
|       | Elmer C. Rossman           | 10-24-2000 | 2803089                 |                      |   |   |              | 658900    |
|       | Alfred J. Greenwalt, et ux | 11-06-2000 | 2808947                 |                      |   |   |              | 659800    |
|       | Dorothy R. Hoff            | 10-27-2000 | 2803090                 |                      |   |   |              | 658800    |
|       | Marion Forbes              | 10-25-2000 | 2803091                 |                      |   |   |              | 658700    |

----

| WELL NAME         | LESSOR OR ASSIGNOR                                                    | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION         | COUNTY | STATE | ASSIGNED INTEREST | LEASE NO. |
|-------------------|-----------------------------------------------------------------------|------------|-------------------------|---------------------------|--------|-------|-------------------|-----------|
| Wells Ranch 23-14 | Wells Ranch, a Colorado General Partnership and Katherine Wells Calve | 11-14-2003 | 3130700                 | T5N, R63W Sec. 14: NE4SW4 | Weld   | CO    | 0.99848           | 687700    |

----

| WELL NAME  | LESSOR OR ASSIGNOR | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION        | COUNTY | STATE  | ASSIGNED INTEREST | LEASE NO. |
|------------|--------------------|------------|-------------------------|--------------------------|--------|--------|-------------------|-----------|
| Kreps 32-6 | James G. Woods     | 06-30-2004 | 3213216                 | T6N, R64W Sec. 6: SW4NE4 | Weld   | CO     | 0.99848           | 765000    |
|       | Joan E. Taggert    | 06-30-2004 | 3213217                 |                     |   |   |              | 765200    |
|       | Doris S. Wood      | 06-30-2004 | 3213218                 |                     |   |   |              | 766500    |
|       | Catherine Kuhlman  | 06-30-2004 | 3217729                 |                     |   |   |              | 765100    |
|       | Bette Sue Wood     | 06-30-2004 | 3217730                 |                     |   |   |              | 766300    |
|       | Keith Klussman     | 06-30-2004 | 3228248                 |                     |   |   |              | 773100    |
|       | Ronald D. Kreps    | 07-14-2004 | 3253730                 |                     |   |   |              | 779500    |

----

| WELL NAME            | LESSOR or ASSIGNOR                                   | LEASE DATE | RECEPTION NO. | LEGAL DESCRIPTION         | COUNTY | STATE | ASSIGNED INTEREST | LEASE # |
|----------------------|------------------------------------------------------|------------|---------------|---------------------------|--------|-------|-------------------|---------|
| J&L Farms #42-19 | Anadarko E&P LP Co. andAnadarko Land Corporation | 11-29-2004 | 3274292       | T6N, R63W Sec. 19: SE4SE4 | Weld   | CO    | 0.87367           | 762000  |

----

| WELL NAME  | LESSOR OR ASSIGNOR | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION        | COUNTY | STATE  | ASSIGNED INTEREST | LEASE NO. |
|------------|--------------------|------------|-------------------------|--------------------------|--------|--------|-------------------|-----------|
| Kreps 31-6 | James G. Woods     | 06-30-2004 | 3213216                 | T6N, R64W Sec. 6: NW4NE4 | Weld   | CO     | 0.99848           | 765000    |
|       | Joan E. Taggert    | 06-30-2004 | 3213217                 |                     |   |   |              | 765200    |
|       | Doris S. Wood      | 06-30-2004 | 3213218                 |                     |   |   |              | 766500    |
|       | Catherine Kuhlman  | 06-30-2004 | 3217729                 |                     |   |   |              | 765100    |
|       | Bette Sue Wood     | 06-30-2004 | 3217730                 |                     |   |   |              | 766300    |
|       | Keith Klussman     | 06-30-2004 | 3228248                 |                     |   |   |              | 773100    |
|       | Ronald D. Kreps    | 07-14-2004 | 3253730                 |                     |   |   |              | 779500    |

----

| WELL NAME            | LESSOR or ASSIGNOR                                   | LEASE DATE | RECEPTION NO. | LEGAL DESCRIPTION         | COUNTY | STATE | ASSIGNED INTEREST | LEASE# |
|----------------------|------------------------------------------------------|------------|---------------|---------------------------|--------|-------|-------------------|--------|
| J&L Farms #41-19 | Anadarko E&P LP Co. andAnadarko Land Corporation | 11-29-2004 | 3274292       | T6N, R63W Sec. 19: NE4NE4 | Weld   | CO    | 0.87367           | 762000 |

----

| WELL NAME            | LESSOR or ASSIGNOR                                        | LEASE DATE | RECEPTION NO. | LEGAL DESCRIPTION         | COUNTY | STATE | ASSIGNED INTEREST | LEASE # |
|----------------------|-----------------------------------------------------------|------------|---------------|---------------------------|--------|-------|-------------------|---------|
| J&L Farms #31-19 | Anadarko E&P Company, LP andAnadarko Land Corporation | 11-29-2004 | 3274292       | T6N, R63W Sec. 19: NW4NE4 | Weld   | CO    | 0.87367           | 762000  |

----

| WELL NAME         | LESSOR OR ASSIGNOR  | LEASE DATE       | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION               | COUNTY     | STATE    | ASSIGNED INTEREST | LEASE NO.    |
|-------------------|---------------------|------------------|-------------------------|---------------------------------|------------|----------|-------------------|--------------|
| Wells Ranch 41-30 | William W.Carpenter |  02-02-2004 |  3163797           |  T6N, R63W Sec. 30: NE4NE4 |  Weld |  CO |  0.99848     |  737900 |
|              | Ward Carpenter      |  02-02-2004 |  3184272           |  T6N, R63W Sec. 30: E2NE4  |       |     |              |  757900 |

----

| WELL NAME         | LESSOR OR ASSIGNOR   | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION         | COUNTY | STATE  | ASSIGNED INTEREST | LEASE NO. |
|-------------------|----------------------|------------|-------------------------|---------------------------|--------|--------|-------------------|-----------|
| Wells Ranch 42-30 | William W. Carpenter | 02-02-2004 | 3163797                 | T6N, R63W Sec. 30: SE4NE4 | Weld   | CO     | 0.99848           | 737900    |
|              | Ward Carpenter       | 02-02-2004 | 3184272                 | T6N, R63W Sec. 30: E2NE4  |   |   |              | 757900    |

----

----

|   | PETROLEUM DEVELOPMENT CORPORATION |
|--------|-----------------------------------|
|   | A Nevada Corporation              |
|   |                              |   |
|   | BY:                               | /s/ William Gainor |
|   |                              | William D. GainorLand Manager |

| STATE OF WEST VIRGINIA | ) |    |
|------------------------|---|---------|
|                   | ) | TO-WIT: |
| COUNTY OF HARRISON     | ) |    |

|   | OFFICIAL SEAL                         |   |   |
|--------|---------------------------------------|--------|--------|
|   | Notary Public. State of West Virginia |   |   |
|   | RITA A. CLARK                         |   |   |
|   | Petroleum Development Corporation     |   |   |
|   | 103 East Main Street, Box 26          |   |   |
|   | Bridgeport, WV 26330                  |   |   |
|   | My commission expires June 2, 2009    |   |   |

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

----

|   | PDC 2004-D LIMITED PARTNERSHIP |
|--------|--------------------------------|
|   |                           |
|   | By:                            | Petroleum Development Corporation |
|   |                           |   |
|   | By:                            | /s/ Ensel E. Morgan |
|   |                           | Ensel E. Morgan Jr. as Vice President |

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

|   | OFFICIAL SEAL                         |   |   |
|--------|---------------------------------------|--------|--------|
|   | Notary Public. State of West Virginia |   |   |
|   | RITA A. CLARK                         |   |   |
|   | Petroleum Development Corporation     |   |   |
|   | 103 East Main Street, Box 26          |   |   |
|   | Bridgeport, WV 26330                  |   |   |
|   | My commission expires June 2, 2009    |   |   |

|   | /s/ Rita A. Clark                   |
|--------|-------------------------------------|
|   | Rita A. Clark as Notary Public      |
|   | Harrison County, West Virginia      |
|   | My commission expires; June 2, 2009 |

----

| WELL NAME      | LESSOR OR ASSIGNOR   | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION         | COUNTY   | STATE    | ASSIGNED INTEREST | LEASE NO. |
|----------------|----------------------|------------|-------------------------|---------------------------|----------|----------|-------------------|-----------|
| Puckett2lC-31D | Puckett Land Company | 11-15-1999 | 556562                  | T6S, R96W Sec. 31: NE4NW4 | Garfield | Colorado | 0.99848           | 636800    |

----

| WELL NAME       | LESSOR OR ASSIGNOR   | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION         | COUNTY   | STATE    | ASSIGNED INTEREST | LEASE NO. |
|-----------------|----------------------|------------|-------------------------|---------------------------|----------|----------|-------------------|-----------|
| Puckett 2lD-31D | Puckett Land Company | 11-15-1999 | 556562                  | T6S, R96W Sec. 31: NE4NW4 | Garfield | Colorado | 0.99848           | 636800    |

----

| WELL NAME       | LESSOR OR ASSIGNOR | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION         | COUNTY   | STATE    | ASSIGNED INTEREST | LEASE NO. |
|-----------------|--------------------|------------|-------------------------|---------------------------|----------|----------|-------------------|-----------|
| Chevron 13D-17D | Chevron USA Inc.   | 11-15-2002 | Book 1447, Page 573     | T6S, R96W Sec. 17: SW4SW4 | Garfield | Colorado | 0.99484           | 691300    |

----

| WELL NAME       | LESSOR OR ASSIGNOR   | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION         | COUNTY   | STATE    | ASSIGNED INTEREST | LEASE NO. |
|-----------------|----------------------|------------|-------------------------|---------------------------|----------|----------|-------------------|-----------|
| Puckett 22C-31D | Puckett Land Company | 11-15-1999 | 556562                  | T6S, R96W Sec. 31; SE4NW4 | Garfield | Colorado | 0.99848           | 636800    |

----

| WELL NAME       | LESSOR OR ASSIGNOR | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION         | COUNTY   | STATE    | ASSIGNED INTEREST | LEASE NO. |
|-----------------|--------------------|------------|-------------------------|---------------------------|----------|----------|-------------------|-----------|
| Chevron 12B-17D | Chevron USA, Inc.  | 11-15-2002 | Book 1447, Page 573     | T6S, R96W Sec. 17: SW4SW4 | Garfield | Colorado | 0.99848           | 691300    |

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| WELL NAME     | LESSOR OR ASSIGNOR | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION        | COUNTY   | STATE    | ASSIGNED INTEREST | LEASE NO. |
|---------------|--------------------|------------|-------------------------|--------------------------|----------|----------|-------------------|-----------|
| Chevron 42D-8 | Chevron USA, Inc.  | 11-02-2002 | 623085                  | T6S, R96W Sec. 8: SE4NE4 | Garfield | Colorado | 0.99848           | 687400    |

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| WELL NAME       | LESSOR OR ASSIGNOR | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION         | COUNTY   | STATE    | ASSIGNED INTEREST | LEASE NO. |
|-----------------|--------------------|------------|-------------------------|---------------------------|----------|----------|-------------------|-----------|
| Chevron 13A-17D | Chevron USA, Inc.  | 11-15-2002 | Book 1447, Page 573     | T6S, R96W Sec. 17: NW4SW4 | Garfield | Colorado | 0.99848           | 691300    |

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| WELL NAME      | LESSOR OR ASSIGNOR | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION        | COUNTY   | STATE    | ASSIGNED INTEREST | LEASE NO. |
|----------------|--------------------|------------|-------------------------|--------------------------|----------|----------|-------------------|-----------|
| Chevron 42A-8D | Chevron USA, Inc.  | 11-02-2002 | 623085                  | T6S, R96W Sec. 8: SE4NE4 | Garfield | Colorado | 0.99848           | 687400    |

----

| WELL NAME      | LESSOR OR ASSIGNOR | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION        | COUNTY   | STATE    | ASSIGNED INTEREST | LEASE NO. |
|----------------|--------------------|------------|-------------------------|--------------------------|----------|----------|-------------------|-----------|
| Chevron 41D-8D | Chevron USA, Inc.  | 11-02-2002 | 623085                  | T6S, R96W Sec. 8: SE4NE4 | Garfield | Colorado | 0.99848           | 687400    |

----

| WELL NAME      | LESSOR OR ASSIGNOR   | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION         | COUNTY   | STATE    | ASSIGNED INTEREST | LEASE NO. |
|----------------|----------------------|------------|-------------------------|---------------------------|----------|----------|-------------------|-----------|
| Puckett44D-30D | Puckett Land Company | 11-15-1999 | 556562                  | T6S, R96W Sec. 30: SE4SE4 | Garfield | Colorado | 0.44848           | 636800    |

----

| WELL NAME      | LESSOR OR ASSIGNOR | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION        | COUNTY   | STATE    | ASSIGNED INTEREST | LEASE NO. |
|----------------|--------------------|------------|-------------------------|--------------------------|----------|----------|-------------------|-----------|
| Chevron 41A-8D | Chevron USA, Inc.  | 11-02-2002 | 623085                  | T6S, R96W Sec. 8: NE4NE4 | Garfield | Colorado | 0.99848           | 687400    |

----

| WELL NAME       | LESSOR OR ASSIGNOR   | LEASE DATE | RECEPTION NO. BOOK/PAGE | LEGAL DESCRIPTION         | COUNTY   | STATE    | ASSIGNED INTEREST | LEASE NO. |
|-----------------|----------------------|------------|-------------------------|---------------------------|----------|----------|-------------------|-----------|
| Puckett 44B-30D | Puckett Land Company | 11-15-1999 | 556562                  | T6S, R96W Sec. 30: SE4SE4 | Garfield | Colorado | 0.99848           | 636800    |

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