| South Gary Gas Unit 1 #742-365-33880 | Union Pacific Resources Company | Panola, TX | Not on schedule | 10,300 | Feb 13, 1998 | — | — |
| Montgomery, W. C. #4642-105-38001 | Union Pacific Resources Company | Crockett, TX | Not on schedule | 7,400 | Jan 23, 1998 | — | — |
| Montgomery, W. C. #4842-105-38000 | Union Pacific Resources Company | Crockett, TX | Not on schedule | 7,400 | Jan 22, 1998 | — | — |
| Montgomery, W. C. #4742-105-38002 | Union Pacific Resources Company | Crockett, TX | Not on schedule | 7,400 | Jan 22, 1998 | — | — |
| Rogers Estate Gas Unit #842-401-32822 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Jan 21, 1998 | — | — |
| Kangerga "a" Gas Unit #542-401-32832 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Jan 7, 1998 | — | — |
| Alice Christian Estate B Gas Ut. #8A42-401-32831 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Jan 5, 1998 | — | — |
| Thompson, Willie et al Gas Unit #842-401-32823 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Dec 31, 1997 | — | — |
| University "36-3" #342-443-30771 | Union Pacific Resources Company | Terrell, TX | Not on schedule | 13,000 | Dec 30, 1997 | — | — |
| Letourneau GU 6 #742-203-32492 | Union Pacific Resources Company | Harrison, TX | Not on schedule | 10,900 | Dec 23, 1997 | — | — |
| Ptarmigan Unit #1HZ42-289-31282 | Union Pacific Resources Company | Leon, TXGiddings (Austin Chalk-3) | PluggedOil | 7,000 | Dec 19, 1997 | — | — |
| Rawah Unit #1HZ42-395-30556 | Union Pacific Resources Company | Robertson, TX | Not on schedule | 6,300 | Dec 19, 1997 | — | — |
| Montgomery, W. C. Gas Unit "D" #1042-105-37970 | Union Pacific Resources Company | Crockett, TX | Not on schedule | 7,600 | Dec 12, 1997 | — | — |
| University "36-2" #742-443-30769 | Union Pacific Resources Company | Terrell, TX | Not on schedule | 13,000 | Dec 12, 1997 | — | — |
| University "36-6" #242-443-30770 | Union Pacific Resources Company | Terrell, TX | Not on schedule | 13,000 | Dec 12, 1997 | — | — |
| Ballow Gas Unit #742-401-32814 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Dec 9, 1997 | — | — |
| Ballow Gas Unit #842-401-32816 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Dec 9, 1997 | — | — |
| Ballow Gas Unit #542-401-32815 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Dec 5, 1997 | — | — |
| McAlister Gas Unit #542-401-32796 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Dec 4, 1997 | — | — |
| Holt, J. W. Estate Gas Unit #542-401-32811 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Dec 2, 1997 | — | — |
| Montgomery, W. C. #4142-105-37918 | Union Pacific Resources Company | Crockett, TX | Not on schedule | 7,300 | Dec 1, 1997 | — | — |
| Busby Estate "a" Gas Unit #642-401-32809 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Dec 1, 1997 | — | — |
| Fred Beck Estate Gas Unit #842-401-32802 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Nov 25, 1997 | — | — |
| Fred Beck Estate Gas Unit #742-401-32803 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Nov 18, 1997 | — | — |
| Witcher, Louise #142-401-32800 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 8,000 | Nov 14, 1997 | — | — |
| Secretariat Unit #1HZ42-149-33070 | Union Pacific Resources Company | Fayette, TX | Not on schedule | 13,500 | Nov 10, 1997 | — | — |
| Montgomery, W. C. GU "D" #942-105-37923 | Union Pacific Resources Company | Crockett, TX | Not on schedule | 7,300 | Nov 6, 1997 | — | — |
| Alice Christian Estate Gas Unit #542-401-32778 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Nov 5, 1997 | — | — |
| Blue Unit #1HZ42-289-31278 | Union Pacific Resources Company | Leon, TXGiddings (Austin Chalk-3) | PluggedOil | 7,200 | Oct 31, 1997 | — | — |
| Cgu 8 #1042-365-33798 | Union Pacific Resources Company | Panola, TX | Not on schedule | 10,300 | Oct 31, 1997 | — | — |
| Hielscher-White #1HZ42-287-31647 | Union Pacific Resources Company | Lee, TXGiddings (Austin Chalk-3) | PluggedOil | 9,000 | Oct 30, 1997 | — | — |
| Busby Estate Gas Unit #742-401-32787 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Oct 16, 1997 | — | — |
| Roman Gas Unit #842-401-32762 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Oct 8, 1997 | — | — |
| Bravo Unit #342-505-33686 | Union Pacific Resources Company | Zapata, TX | Not on schedule | 9,000 | Oct 8, 1997 | — | — |
| Long Unit #1HZ42-285-32539 | Union Pacific Resources Company | Lavaca, TXGiddings (Austin Chalk-1) | PluggedOil | 17,000 | Oct 2, 1997 | — | — |
| Riverbend Unit #1HZ42-395-30539 | Union Pacific Resources Company | Robertson, TX | Not on schedule | 6,600 | Oct 1, 1997 | — | — |
| Roman Gas Unit #742-401-32763 | Union Pacific Resources Company | Rusk, TX | Not on schedule | 11,800 | Sep 22, 1997 | — | — |
| Exxon Fee #142-479-36757 | Union Pacific Resources Company | Webb, TX | Not on schedule | 7,000 | Sep 16, 1997 | — | — |
| Thornhill Unit #1HZ42-477-30852 | Union Pacific Resources Company | Washington, TXGiddings (Austin Chalk-3) | PluggedOil | 15,000 | Sep 15, 1997 | — | — |
| Bean, Vada #4HHZ42-105-37869 | Union Pacific Resources Company | Crockett, TX | Not on schedule | 9,800 | Sep 5, 1997 | — | — |
| Moody '37' #642-105-37803 | Union Pacific Resources Company | Crockett, TX | Not on schedule | 7,600 | Aug 29, 1997 | — | — |
| Hoover "49" #942-105-37826 | Union Pacific Resources Company | Crockett, TX | Not on schedule | 7,600 | Aug 18, 1997 | — | — |
| Williams, Otto #3701HHZ42-413-32010 | Union Pacific Resources Company | Schleicher, TX | Not on schedule | 5,300 | Aug 4, 1997 | — | — |
| Moody '45' #342-105-37791 | Union Pacific Resources Company | Crockett, TX | Not on schedule | 7,800 | Jul 29, 1997 | — | — |
| University 39-19 #1D42-105-37798 | Union Pacific Resources Company | Crockett, TXBlock 39-B (Ellen) | PluggedGas | 8,600 | Jul 29, 1997 | — | — |
| Sellers W. S. B #742-355-33092 | Union Pacific Resources Company | Nueces, TXStratton (Consolidated) | PluggedGas | 7,700 | Jul 23, 1997 | — | — |
| Powell 6 #1HHZ42-413-32008 | Union Pacific Resources Company | Schleicher, TXTillery Southwest (Strawn) | PluggedGas | 5,000 | Jul 23, 1997 | — | — |
| Lupus "7" #142-443-30748 | Union Pacific Resources Company | Terrell, TX | Not on schedule | 7,500 | Jul 3, 1997 | — | — |
| Wardner G. P. #25942-355-33082 | Union Pacific Resources Company | Nueces, TXStratton (Consolidated) | PluggedGas | 7,900 | Jun 24, 1997 | — | — |
| Brown-Ely Unit #1HZ42-331-33482 | Union Pacific Resources Company | Milam, TXGiddings (Buda) | PluggedOil | 6,500 | Jun 5, 1997 | — | — |