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

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

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

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|   |                              |   | PDC 2002-B LIMITED PARTNERSHIP |                                                         |
|--------|-----------------------------------|--------|--------------------------------|--------------------------------------------------------------|
|   |                              |   | By:                            | Steven R. Williams as President of the Managing Partnership. |   |
| By:    | /s/ William D. Gainor   |   | By:                            | /s/ Steven R. William, President                             |   |
|   | William D. Gainor, Land Manager   |   |                           | Steven R. Williams, President                                |   |

| STATE OF WEST VIRGINIA | ) |   |   |   |
|------------------------|---|--------|--------|--------|
|                   | ) |   | ss:    |   |
| COUNTY OF HARRISON     | ) |   |   |   |

| WITNESS my hand and seal |                                                                           |
|--------------------------|--------------------------------------------------------------------------------|
|                          | /s/ Rita A. ClarkRita A. ClarkNotary PublicMy Commission expires: June 2, 2009 |

| STATE OF WEST VIRGINIA | ) |   |   |   |
|------------------------|---|--------|--------|--------|
|                   | ) |   | ss:    |   |
| COUNTY OF HARRISON     | ) |   |   |   |

| WITNESS my hand and seal |                                                                           |
|--------------------------|--------------------------------------------------------------------------------|
|                          | /s/ Rita A. ClarkRita A. ClarkNotary PublicMy Commission expires: June 2, 2009 |

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| WELL NAME | LESSOR             | LEASE DATE | RECEPTION NO. BOOK NO. | ACREAGE          | COUNTY | STATE  | WORKING INTEREST | NET INTEREST | LEASE # API # | LEGAL DESCRIPTION         |
|----------------|--------------------|------------|------------------------|------------------|--------|--------|------------------|-------------------|--------------------|---------------------------|
| Foe #33-20     | Edward Dorn        | 01/15/1982 | 1885303/963            | Part of SE/4     | Weld   | CO     | 0.872375         | 0.70339596        | 684200             | T6N, R64WSec.20: NW/4SE/4 |
|           | Lois E. Foe        | 01/01/1982 | 1885304/963            | SE/4             |   |   |             |              |               |                      |
|           | Brooks Cole, et ux | 01/26/1989 | 2184014/ 1236          | Part of NW/4SE/4 |   |   |             |              |               |                      |
|           | Robert Roth, et ux | 01/22/1989 | 2184015/ 1236          | Part of NW/4SE/4 |   |   |             |              |               |                      |

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| WELL NAME | LESSOR             | LEASE DATE | RECEPTION NO. BOOK NO. | ACREAGE   | county | STATE  | WORKING INTEREST | NET INTEREST | LEASE # API# | LEGAL DESCRIPTION        |
|----------------|--------------------|------------|------------------------|-----------|--------|--------|------------------|-------------------|--------------|--------------------------|
| Millage #13-3D | Millage Bros, Inc. | 11/28/2000 | 2832260                | N/2SW/4   | Weld   | CO     | .9502407         | .78632418         | 657800       | T5N, R64WSec. 3: W/2SW/4 |
|           | H. Joan Englehart  | 04/13/1981 | 1865240/943            | PON/2SW/4 |   |   |             |              |         |                     |

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| WELL NAME | LESSOR or ASSIGNOR          | LEASE DATE | RECEPTION NO.      | LEGAL DESCRIPTION                              | COUNTY | STATE  | ASSIGNED INTEREST | LEASE# API# |
|----------------|-----------------------------|------------|--------------------|------------------------------------------------|--------|--------|-------------------|------------------|
| Bryce # 21-28  | John F. Biggs (Jack)        | 11-15-2001 | 2911978            | T2N, R64W, Sec. 28: Tracts 026, 027,028        | Weld   | CO     | 0.79904834        | 683900           |
|           | Kurt Conner                 | 07-15-2001 | 2864271            | T2N, R64W, Sec. 28: Tacts 026,027,028          |   |   |              |             |
|           | Sandra K. Conner            | 07-15-2001 | 2864272            | T2N, R64W. Sec. 28: Tracts 026, 027, 028       |   |   |              |             |
|           | Jeanette Frasco             | 11-15-2001 | 2911977            | T2N, R64W, Sec. 28: Tracts 026, 027, 028       |   |   |              |             |
|           | John M. Hefner, et ux       | 09-15-2002 | Now Being Recorded | T2N, R64W, Sec. 28: W/2                        |   |   |              |             |
|           | Nancy S. Keeth              | 07-15-2001 | 2864270            | T2N. R64W, Sec. 28: Tracts 026,027,028         |   |   |              |             |
|           | Ellis Knoll                 | 11-15-2001 | 2911980            | T2N, R64W, Sec. 28: Tracts 026,027,028         |   |   |              |             |
|           | Richard Moore               | 11-15-2001 | 2911979            | T2N, R64W, Sec. 28: Tracts 026, 027, 028       |   |   |              |             |
|           | Helen Ries & James Ries | 08-28-2002 | Now Being Recorded | T2N, R64W, Sec. 28: Tract 027                  |   |   |              |             |
|           | Arnold Thurow               | 09-15-2002 | Now Being Recorded | T2N. R64W, Sec. 28: Tracts 026, 027, 028       |   |   |              |             |
|           | James M. Thomson            | 01-17-2002 | 2951301            | T2N, R64W, Sec. 28: Tacts 026,027,028          |   |   |              |             |
|           | The Great Western Sugar Co. | 09-15-1972 | 1605092            | T2N, R64W, Sec. 28: P/O SW/4NW/4 & P/O W/2 |   |   |              |             |

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| WELL NAME    | LESSOR            | LEASE DATE | RECEPTION NO. BOOK NO. | ACREAGE | COUNTY | STATE | WORKING INTEREST | NET INTEREST | LEASE#API# | LEGAL DESCRIPTION           |
|-------------------|-------------------|-----------------|------------------------|---------|--------|-------|------------------|-------------------|------------|-----------------------------|
| State 6525 #44-32 | State of Colorado | 06-01-81        | 2140511 / 1195         | 640     | Weld   | CO    | 0.872375         | 0.6979            | 646900     | T6N, R63W Sec. 32: SE/4SE/4 |

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| WELL NAME     | LESSOR      | LEASE DATE | RECEPTION NO. BOOK NO. | ACREAGE | COUNTY | STATE | WORKING INTEREST | NET INTEREST | LEASE # API # | LEGAL DESCRIPTION       |
|--------------------|-------------|------------|------------------------|---------|--------|-------|------------------|--------------|---------------|-------------------------|
| Wells Ranch #33-10 | Wells Ranch | 03-23-1988 | 2136096/1190           | 640     | Weld   | CO    | 0.872375         | 0.70237912   | 680400        | T5N, R63W Sec. 10: NWSE |

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| WELL NAME          |  LESSOR |  LEASEDATE | RECEPTION NO. BOOK NO. | ACREAGE | COUNTY | STATE | WORKING INTEREST | NET INTEREST | LEASE # API # | LEGAL DESCRIPTION       |
|--------------------|--------------|-----------------|------------------------|---------|--------|-------|------------------|--------------|---------------|-------------------------|
| Wells Ranch #31-10 | Wells Ranch  |  03-23-88  | 2136096                | 640     | Weld   | CO    | 0.872375         | 0.70062617   | 680300        | T5N, R63W Sec. 10: NWNE |

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| WELL NAME     | LESSOR      | LEASE DATE | RECEPTION NO. BOOK NO. | ACREAGE       |  COUNTY | STATE | WORKING INTEREST |  NET INTEREST |  LEASE # API # | LEGAL DESCRIPTION       |
|--------------------|-------------|------------|------------------------|---------------------------------------------|--------------|-------|------------------|--------------------|---------------------|-------------------------|
| Wells Ranch #44-10 | Wells Ranch | 3/23/1988  | 2136096/1190           | 640                                         |  Weld   | CO    | 0.872375         | 0.70237912         | 680400              | T5N, R63W Sec. 10: SESE |

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| WELL NAME | LESSOR                             | LEASE DATE | RECEPTION NO. BOOK NO. | ACREAGE                            | COUNTY | STATE  | WORKING INTEREST | NET INTEREST | LEASE # API # | LEGAL DESCRIPTION         |
|----------------|------------------------------------|------------|------------------------|------------------------------------|--------|--------|------------------|--------------|---------------|---------------------------|
| Miller #43-29  | Rhinie A. Miller                   | 12/16/1981 | 1882508/960            | Sec. 29: PO N/2SE/4 and PO S/2SE/4 | Weld   | CO     | 0.872375         | 0.6979       | 660200        | T6N, R64w Sec 29 NE/4SE/4 |
|           | Union Pacific Land Resources Corp. | 12/24/1997 | 2589845                | Sec. 29: ROW Across NW/4SE/4       |   |   |             |         |          |                      |

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| WELL NAME         | LESSOR                      | LEASE DATE | RECEPTION NO. BOOK NO. | ACREAGE | COUNTY | STATE | WORKING INTEREST | NET INTEREST | LEASE # API # | LEGAL DESCRIPTION           |
|-------------------|-----------------------------|-----------------|------------------------|---------|--------|-------|------------------|--------------|---------------|-----------------------------|
| Noffsinger #22-33 | Union Pacific Resources Co. | 04/24/1989      | 2179583/ 1232          | E/2NW/4 | Weld   | CO    | 0.872375         | 0.6979       | 652000        | T6N, R64W Sec. 33: SE/4NW/4 |

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| WELL NAME      | LESSOR                | LEASE DATE | RECEPTION NO. BOOK NO. | ACREAGE             | COUNTY | STATE  | WORKING INTEREST | NET INTEREST | LEASE # API # | LEGAL DESCRIPTION      |
|----------------|-----------------------|------------|------------------------|---------------------|--------|--------|------------------|--------------|---------------|------------------------|
| Howard # 14-18 | Marjorie Carey        | 02-7-1983  | 1920405/991            | PO Sec. 18: S/2SW/4 | Weld   | CO     | 0.872375         | 0.6979       | 652800        | T5N, R64W Sec 18: SWSW |
|           | Almira Carlson        | 02-07-1983 | 1920416 / 991          | PO Sec. 18: S/2SW/4 |   |   |             |         |          |                   |
|           | Helen Croissant       | 02-07-1983 | 1920412 / 991          | PO Sec. 18: S/2SW/4 |   |   |             |         |          |                   |
|           | Alan Fahrenbruch      | 02-07-1983 | 1920404 / 991          | PO Sec. 18: S/2SW/4 |   |   |             |         |          |                   |
|           | Edward Fahrenbruch    | 02-07-1983 | 1920406 / 991          | PO Box 18: S/2SW/4  |   |   |             |         |          |                   |
|           | Elmer Fahrenbruch     | 02-07-1983 | 1920415 / 991          | PO Sec. 18: S/2SW/4 |   |   |             |         |          |                   |
|           | Harold Fahrenbruch    | 02-07-1983 | 1920417 / 991          | PO Sec. 18: S/2SW/4 |   |   |             |         |          |                   |
|           | Emma Fahrenbruch      | 02-07-1983 | 1920410 / 991          | PO Sec. 18: S/2SW/4 |   |   |             |         |          |                   |
|           | Roland Fahrenbruch    | 02-07-1983 | 1923681 / 993          | PO Sec. 18: S/2SW/4 |   |   |             |         |          |                   |
|           | Emma Haas             | 02-07-1983 | 1920411 / 991          | PO Sec. 18: S/2SW/4 |   |   |             |         |          |                   |
|           | Cecil J.Howard, et ux | 06-25-1981 | 1870845 / 949          | PO Soc. 18: S/2SW/4 |   |   |             |         |          |                   |
|           | Lydia Kindsfather     | 02-07-1983 | 1920414 / 991          | PO Sec. 18: S/2SW/4 |   |   |             |         |          |                   |
|           | Betty Schott          | 02-07-1983 | 1920403 / 991          | PO Sec. 18: S/2SW/4 |   |   |             |         |          |                   |
|           | Delbert Steinmetz     | 02-07-1983 | 1920408 / 991          | PO Sec. 18: S/2SW/4 |   |   |             |         |          |                   |
|           | Donald Steinmetz      | 02-07-1983 | 1920407 / 991          | PO Sec. 18: S/2SW/4 |   |   |             |         |          |                   |
|           | Ruth Stoll            | 02-07-1983 | 1920413 / 991          | PO Sec. 18: S/2SW/4 |   |   |             |         |          |                   |
|           | Shirley Taylor        | 02-07-1983 | 1920402 / 991          | PO Sec. 18: S/2SW/4 |   |   |             |         |          |                   |
|           | Anna Margaret Walters | 02-17-1983 | 1920409 / 991          | PO Sec. 18: S/2SW/4 |   |   |             |         |          |                   |

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| WELL NAME         | LESSOR                          | LEASE DATE | RECEPTION NO. BOOK NO. | ACREAGE | COUNTY | STATE | WORKING INTEREST | NET INTEREST | LEASE # API# | LEGAL DESCRJPTIOT       |
|-------------------|---------------------------------|------------|------------------------|---------|--------|-------|------------------|-------------------|--------------|-------------------------|
| Noffsinger #32-33 | Union Pacific Resources Company | 04-24-89   | 2179582 / 1232         | W/2NE/4 | Weld   | CO    | 0.872375         | 0.6979            | 687000       | T6N, R64W Sec. 33: SWNE |

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| Witnesses:          |   | PETROLEUM DEVELOPMENT CORPORATION |
|---------------------|--------|-----------------------------------|
|                |   | A Nevada Corporation              |
| /s/ Susan A. Foster |   |                              |   |
| Susan A. Foster     |   |                              |   |
|                |   |                              |   |
| /s/ P. Wayne Ammons |   | BY:                               | /s/ William D. Gainor |
| P. Wayne Ammons     |   |                              | William D. Gainor |
|                |   |                              | Land Manager |

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

|  | /s/ Rita A. ClarkRita A. ClarkNotary Public - State of West VirginiaCounty of HarrisonMy Commission expires: June 2, 2009 |
|--|---------------------------------------------------------------------------------------------------------------------------|

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| WELL NAME  | LESSOR               | LEASE DATE | RECEPTION NO. BOOK NO | ACREAGE | COUNTY   | STATE | WORKING INTEREST | NET INTEREST | LEASE # API# | LEGAL DESCRIPTION           |
|-----------------|----------------------|------------|-----------------------|---------|----------|-------|------------------|--------------|--------------|-----------------------------|
| Puckett #218-25 | Puckett Land Company | 11/15/1999 | 556562/ 1164/400      | 7393.69 | Garfield | CO    | .997             | .84745       | 636800       | T6S, R97W Sec. 25: SW/SW/SW |

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| WELL NAME  | LESSOR               | LEASE DATE | RECEPTION NO. | ACREAGE | COUNTY   | STATE | WORKING INTEREST | NET INTEREST | LEASE# API# | LEGAL DESCRIPTION           |
|-----------------|----------------------|------------|---------------|---------|----------|-------|------------------|-------------------|-------------|-----------------------------|
| Puckett #236-25 | Puckett Land Company | 11/15/1999 | 556562        | 7393.69 | Garfield | CO    | .997             | 84745             | 636800      | T6S, R97W Sec. 25: NC/4SW/4 |

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| WELL NAME | LESSOR            | LEASE DATE | RECEPTION NO. BOOK NO. | LEGAL DESCRIPTION          | COUNTY   | STATE | ASSIGNED INTEREST | LEASE # API# |
|----------------|-------------------|------------|------------------------|----------------------------|----------|-------|-------------------|--------------|
| Chevron #42-8  | Chevron USA, Inc. | 11-02-2002 | 623085                 | T6S, R96W Sec. 8: SE/4NE/4 | Garfield | CO    | 0.8100625         | 687400       |

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