| Union Central Life Ins. Co. #8 T42-355-05361 | Union Pacific Resources Company | Nueces, TXStratton (Consolidated) | PluggedGas | 5,715 | Apr 17, 2001 | — | — |
| Hutchins '43' #642-105-38509 | Union Pacific Resources Company | Crockett, TX | Not on schedule | 7,600 | Dec 27, 2000 | — | — |
| Sevengill Unit #142-423-31535 | Union Pacific Resources Company | Smith, TX | Not on schedule | 17,000 | Aug 29, 2000 | — | — |
| Sheppard, Bailey #1742-401-33021 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,500 | Aug 10, 2000 | — | — |
| Porterhouse Unit a-255 #1HZ42-313-30767 | Union Pacific Resources Company | Madison, TX | Plugged | 12,100 | Jul 20, 2000 | — | — |
| R. A. Coward Unit #1HZ42-015-30754 | Union Pacific Resources Company | Austin, TX | Not on schedule | 16,000 | Jun 5, 2000 | — | — |
| Ballow Gas Unit #542-401-32987 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Mar 2, 2000 | — | — |
| Caroline Unit #1HZ42-021-31538 | Union Pacific Resources Company | Bastrop, TX | Plugged | 13,000 | Aug 6, 1999 | — | — |
| Roesener, F. G. #142-021-00139 | Union Pacific Resources Company | Bastrop, TX | Not on schedule | 7,079 | Feb 18, 1999 | — | — |
| Haynes #1842-505-33895 | Union Pacific Resources Company | Zapata, TX | Not on schedule | 15,000 | Jan 29, 1999 | — | — |
| Cgu 17 #1242-365-34085 | Union Pacific Resources Company | Panola, TX | Not on schedule | 10,300 | Dec 17, 1998 | — | — |
| Van Eman Unit #1HZ42-477-30858 | Union Pacific Resources Company | Washington, TX | Not on schedule | 14,700 | Dec 11, 1998 | — | — |
| Cgu 6 #1342-365-34082 | Union Pacific Resources Company | Panola, TX | Not on schedule | 10,300 | Dec 1, 1998 | — | — |
| Moody "37" #1342-105-38219 | Union Pacific Resources Company | Crockett, TX | Not on schedule | 7,900 | Nov 13, 1998 | — | — |
| Moody "37" #1442-105-38220 | Union Pacific Resources Company | Crockett, TX | Not on schedule | 7,900 | Nov 13, 1998 | — | — |
| Freeman Gas Unit #942-365-34068 | Union Pacific Resources Company | Panola, TX | Not on schedule | 10,300 | Nov 12, 1998 | — | — |
| E. T. Rogers Gas Unit #742-365-34036 | Union Pacific Resources Company | Panola, TX | Not on schedule | 10,300 | Sep 10, 1998 | — | — |
| Cgu 5 #842-365-34039 | Union Pacific Resources Company | Panola, TX | Not on schedule | 10,300 | Sep 10, 1998 | — | — |
| Dees Unit #1HZ42-287-32369 | Union Pacific Resources Company | Lee, TXGiddings (North Edwards) | PluggedGas | 20,000 | Sep 2, 1998 | — | — |
| Alford Jones Gas Unit #742-183-31328 | Union Pacific Resources Company | Gregg, TX | Not on schedule | 10,300 | Aug 20, 1998 | — | — |
| Ballow Gas Unit #642-401-32885 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Aug 20, 1998 | — | — |
| Lecour Joe L. Jr #1X42-051-31091 | Union Pacific Resources Company | Burleson, TXGiddings (Austin Chalk-3) | PluggedOil | 8,900 | Aug 13, 1998 | — | — |
| Montgomery, C. C. "10" #1442-105-38154 | Union Pacific Resources Company | Crockett, TX | Not on schedule | 6,900 | Jul 17, 1998 | — | — |
| Frost Unit 4 #442-365-33970 | Union Pacific Resources Company | Panola, TX | Not on schedule | 10,300 | Jul 17, 1998 | — | — |
| Frost-Gillaspy #442-365-34010 | Union Pacific Resources Company | Panola, TX | Not on schedule | 10,300 | Jul 17, 1998 | — | — |
| Borders-Smith Unit 3 #542-365-34003 | Union Pacific Resources Company | Panola, TX | Not on schedule | 10,300 | Jul 16, 1998 | — | — |
| Boren Unit 1 #642-365-34004 | Union Pacific Resources Company | Panola, TX | Not on schedule | 10,300 | Jul 16, 1998 | — | — |
| High Estate Gas Unit #742-401-32883 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Jul 16, 1998 | — | — |
| South Gary Gas Unit 1 #842-365-33958 | Union Pacific Resources Company | Panola, TX | Not on schedule | 10,300 | Jul 15, 1998 | — | — |
| Alford "a" Gas Unit #542-401-32865 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Jul 8, 1998 | — | — |
| Couch "21" #1142-105-38148 | Union Pacific Resources Company | Crockett, TX | Not on schedule | 7,500 | Jul 1, 1998 | — | — |
| Montgomery, C.C. "5B" #942-105-38152 | Union Pacific Resources Company | Crockett, TX | Not on schedule | 7,300 | Jun 18, 1998 | — | — |
| Montgomery, C.C. "10S" #1342-105-38153 | Union Pacific Resources Company | Crockett, TX | Not on schedule | 6,900 | Jun 18, 1998 | — | — |
| Frost Unit 4 #542-365-33971 | Union Pacific Resources Company | Panola, TX | Not on schedule | 10,300 | Jun 9, 1998 | — | — |
| Frost Lumber Co. (Sprr) Unit 1 #1042-365-33972 | Union Pacific Resources Company | Panola, TX | Not on schedule | 10,300 | Jun 8, 1998 | — | — |
| Kangerga Gas Unit #642-401-32860 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | May 20, 1998 | — | — |
| Murski Unit #1HZ42-477-30863 | Union Pacific Resources Company | Washington, TXGiddings (Austin Chalk-3) | PluggedOil | 15,750 | May 5, 1998 | — | — |
| Tooker Unit #1HZ42-477-30862 | Union Pacific Resources Company | Washington, TXGiddings (Austin Chalk-3) | PluggedOil | 16,500 | Apr 30, 1998 | — | — |
| Frost, H. B. Unit #242-365-33939 | Union Pacific Resources Company | Panola, TX | Not on schedule | 10,300 | Apr 24, 1998 | — | — |
| T. P. Cannon Gas Unit #242-401-32859 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Apr 23, 1998 | — | — |
| Hunt State #142-105-38114 | Union Pacific Resources Company | Crockett, TX | Not on schedule | 7,300 | Apr 8, 1998 | — | — |
| Union Pacific State Unit #542-105-38115 | Union Pacific Resources Company | Crockett, TX | Not on schedule | 7,300 | Apr 8, 1998 | — | — |
| Riggs 19 #142-105-38118 | Union Pacific Resources Company | Crockett, TXDavidson Ranch (Penn. 7890) | PluggedGas | 10,000 | Apr 8, 1998 | — | — |
| Schulz Unit #1HZ42-015-30710 | Union Pacific Resources Company | Austin, TXGiddings (Austin Chalk-3) | PluggedOil | 16,000 | Apr 6, 1998 | — | — |
| J. W. Holt Estate "a" Gas Unit #342-401-32845 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Mar 27, 1998 | — | — |
| McAlister Gas Unit #642-401-32846 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Mar 27, 1998 | — | — |
| Fuente Unit #1HZ42-041-31918 | Union Pacific Resources Company | Brazos, TX | Not on schedule | 11,800 | Mar 26, 1998 | — | — |
| South Gary Gas Unit 2 #642-365-33901 | Union Pacific Resources Company | Panola, TX | Not on schedule | 10,300 | Mar 26, 1998 | — | — |
| Busby Estate "a" Gas Unit #842-401-32852 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Mar 26, 1998 | — | — |
| Schkade-Paseur Unit #1HZ42-149-32507 | Union Pacific Resources Company | Fayette, TXWildcat | PluggedOil | 14,500 | Feb 25, 1998 | — | — |