| Fuente Unit #1HZ42-041-31918 | Union Pacific Resources Company | Brazos | Not on schedule | 11,800 | Mar 26, 1998 | 1 | — |
| A&m Easterwood #4HZ42-041-31899 | Union Pacific Resources Company | Brazos | Not on schedule | 19,300 | Apr 15, 1997 | 1 | — |
| Yellow Rose Unit #1HZ42-041-31889 | Union Pacific Resources Company | BrazosGiddings (Austin Chalk-3) | PluggedOil | 7,700 | Sep 30, 1996 | 1 | Sep 1997 |
| A & M Easterwood #2HZ42-041-31886 | Union Pacific Resources Company | Brazos | Not on schedule | 10,497 | Aug 12, 1996 | 1 | — |
| Deerfield Unit #2HZ42-041-31566 | Union Pacific Resources Company | BrazosKurten (Georgetown) | PluggedGas | 10,700 | Jun 19, 1996 | 5 | May 1998 |
| Glover "a" Unit #1HZ42-041-31873 | Union Pacific Resources Company | Brazos | Not on schedule | 13,100 | Sep 18, 1995 | 1 | — |
| Kurz #1HZ42-041-31525 | Union Pacific Resources Company | BrazosGiddings (Austin Chalk-3) | PluggedOil | 9,500 | Jan 18, 1995 | 3 | Jan 1997 |
| Tauber #1HZ42-041-31822 | Union Pacific Resources Company | BrazosGiddings (Austin Chalk-3) | PluggedOil | 8,100 | Jun 9, 1994 | 1 | — |
| Salpetro-Penicka Unit #1HZ42-041-31510 | Union Pacific Resources Company | BrazosGiddings (Buda) | PluggedOil | 11,200 | Mar 25, 1994 | 2 | Apr 1996 |
| Woodyard-Cargill Unit #1HZ42-041-31755 | Union Pacific Resources Company | BrazosGiddings (Austin Chalk-3) | PluggedOil | 12,800 | Jul 6, 1993 | 1 | Dec 1995 |
| Jones-Walker Unit #1HZ42-041-31602 | Union Pacific Resources Company | BrazosGiddings (Austin Chalk-3) | PluggedOil | 12,650 | Apr 20, 1993 | 2 | Jun 1994 |
| Jones - Cobb Unit #1HZ42-041-31730 | Union Pacific Resources Company | Brazos | Not on schedule | 13,400 | Mar 15, 1993 | 1 | — |
| Woodyard Unit #1HZ42-041-31718 | Union Pacific Resources Company | Brazos | Not on schedule | 15,000 | Jan 20, 1993 | 1 | — |
| Boriskie-Diversified Unit #1HZ42-041-31701 | Union Pacific Resources Company | Brazos | Not on schedule | 14,000 | Dec 14, 1992 | 1 | — |
| Jones-Jones Unit #1HZ42-041-31594 | Union Pacific Resources Company | BrazosGiddings (Austin Chalk-3) | PluggedOil | 13,800 | Nov 2, 1992 | 2 | Feb 1998 |
| Frame Unit I #142-041-30598 | Union Pacific Resources Company | BrazosGiddings (Austin Chalk-3) | PluggedOil | 11,000 | Oct 21, 1992 | 2 | Jun 1994 |
| Dalio #142-041-30828 | Union Pacific Resources Company | BrazosKurten (Buda) | PluggedOil | 9,100 | Aug 28, 1992 | 2 | Aug 1993 |
| Ruffino P. B #142-041-31026 | Union Pacific Resources Company | BrazosGiddings (Austin Chalk-3) | PluggedOil | 8,132 | Aug 27, 1992 | 2 | Jan 2019 |
| Yager Family Unit "a" #1HZ42-041-31664 | Union Pacific Resources Company | Brazos | Not on schedule | 13,500 | Aug 5, 1992 | 1 | — |
| Risinger-Freeman Unit #1HZ42-041-31663 | Union Pacific Resources Company | BrazosGiddings (Austin Chalk-3) | PluggedOil | 13,000 | Jul 28, 1992 | 1 | Jan 1995 |
| Yager-Stetz Unit #1HZ42-041-31660 | Union Pacific Resources Company | Brazos | Not on schedule | 13,000 | Jul 27, 1992 | 1 | — |
| Hicks-Hicks Unit #1HZ42-041-31647 | Union Pacific Resources Company | Brazos | Not on schedule | 11,100 | Jun 29, 1992 | 1 | — |
| Scott J. A. #142-041-31043 | Union Pacific Resources Company | BrazosGiddings (Austin Chalk-3) | PluggedOil | 8,415 | Jun 23, 1992 | 2 | Oct 1994 |
| Rayborn-Martin Unit #1HZ42-041-31644 | Union Pacific Resources Company | Brazos | Not on schedule | 12,600 | Jun 15, 1992 | 1 | — |
| Martin-Edge Unit #1HZ42-041-31636 | Union Pacific Resources Company | Brazos | Not on schedule | 12,900 | May 22, 1992 | 2 | — |
| Merka-Wester Unit #1HZ42-041-31637 | Union Pacific Resources Company | Brazos | Not on schedule | 13,100 | May 22, 1992 | 1 | — |
| Dudake Unit #h 1HZ42-041-31633 | Union Pacific Resources Company | Brazos | Not on schedule | 10,850 | May 21, 1992 | 1 | — |
| Britten Ranch #242-041-31285 | Union Pacific Resources Company | BrazosGiddings (Austin Chalk-3) | PluggedOil | 8,500 | May 18, 1992 | 3 | Aug 1993 |
| Waltman-Chance Farms Unit #1HZ42-041-31631 | Union Pacific Resources Company | BrazosGiddings (Austin Chalk Gas) | PluggedGas | 13,900 | May 18, 1992 | 1 | Feb 1997 |
| Guest-Yager Unit #1HZ42-041-31626 | Union Pacific Resources Company | Brazos | Not on schedule | 12,750 | May 8, 1992 | 1 | — |
| Schroeder-Dansby Unit #1HZ42-041-31627 | Union Pacific Resources Company | Brazos | Not on schedule | 13,600 | May 4, 1992 | 1 | — |
| Wheeler-Peters Unit #1HZ42-041-31620 | Union Pacific Resources Company | Brazos | Not on schedule | 12,800 | Apr 23, 1992 | 2 | — |
| Wheeler-Dansby Unit #1HZ42-041-31621 | Union Pacific Resources Company | Brazos | Not on schedule | 14,200 | Apr 23, 1992 | 1 | — |
| Weedon-Weedon Unit "C" #1HZ42-041-31614 | Union Pacific Resources Company | Brazos | Not on schedule | 12,600 | Apr 15, 1992 | 1 | — |
| Dansby-Dansby Unit #1HZ42-041-31590 | Union Pacific Resources Company | BrazosGiddings (Austin Chalk-3) | PluggedOil | 12,200 | Feb 14, 1992 | 1 | Dec 1994 |
| Peters-Wheeler Unit #1HZ42-041-31579 | Union Pacific Resources Company | BrazosGiddings (Austin Chalk-3) | PluggedOil | 13,800 | Jan 28, 1992 | 2 | Feb 1996 |
| Margraves, Nina B. #1HZ42-041-31554 | Union Pacific Resources Company | Brazos | Not on schedule | 14,500 | Nov 8, 1991 | 1 | — |
| Palasota Peters Unit #1HZ42-041-31468 | Union Pacific Resources Company | BrazosGiddings (Austin Chalk-3) | PluggedOil | 14,000 | Oct 8, 1991 | 3 | — |
| Dansby E. M. a #342-041-30990 | Union Pacific Resources Company | BrazosKurten (Austin Chalk) | PluggedOil | 9,000 | Apr 15, 1991 | 2 | Feb 2025 |
| Longhorn Unit #1HZ42-041-31478 | Union Pacific Resources Company | BrazosKurten (Buda) | PluggedOil | 13,500 | Jan 10, 1991 | 1 | — |
| Crowley Timothy #1HZ42-041-31472 | Union Pacific Resources Company | BrazosGiddings (Austin Chalk-3) | PluggedOil | 14,400 | Nov 27, 1990 | 2 | — |
| Hoegemeyer Unit I #142-041-30758 | Union Pacific Resources Company | BrazosKurten (Buda) | PluggedOil | 8,825 | Jun 13, 1989 | 2 | — |
| Mancuso C.V. #142-041-30957 | Union Pacific Resources Company | BrazosKurten (Austin Chalk) | PluggedOil | 8,500 | Jun 13, 1989 | 2 | — |
| Mathis Creek Estate Unit II #142-041-31214 | Union Pacific Resources Company | BrazosKurten (Buda) | PluggedOil | 9,000 | Jun 13, 1989 | 2 | — |
| Lester Lance #3 #142-041-31077 | Union Pacific Resources Company | BrazosKurten (Buda) | PluggedOil | 9,500 | Jul 5, 1988 | 2 | — |
| Britten Ranch #142-041-31284 | Union Pacific Resources Company | BrazosKurten (Austin Chalk) | PluggedOil | 8,500 | Oct 21, 1986 | 2 | — |
| Dobrovolny #142-041-31232 | Union Pacific Resources Company | BrazosGiddings (Buda) | PluggedOil | 8,700 | Oct 24, 1984 | 1 | — |
| Dansby-Davis Unit #142-041-31197 | Union Pacific Resources Company | BrazosKurten (Buda) | PluggedOil | 8,970 | Oct 10, 1984 | 1 | Aug 1993 |
| Long R. #142-041-31224 | Union Pacific Resources Company | BrazosKurten (Buda) | PluggedOil | 8,350 | Oct 9, 1984 | 1 | — |
| Brazos Farms Ltd. #442-041-31213 | Union Pacific Resources Company | BrazosKurten (Buda) | PluggedOil | 8,200 | Sep 18, 1984 | 1 | — |