| Goldsmith-Cummins /Deep/ Unit #30242-135-37728 | Formentera Operations LLC | EctorGoldsmith (Clear Fork) | Shut inOil | 6,404 | Jul 21, 1998 | 1 | Aug 2026 |
| Raiter #142-335-34058 | Nordstrand Engineering Inc. | MitchellWestbrook East (Clear Fork) | ActiveOil | 3,330 | Jul 21, 1998 | 1 | Aug 2026 |
| Goldsmith-Cummins /Deep/ Unit #30842-135-37716 | Formentera Operations LLC | EctorGoldsmith (Clear Fork) | ActiveOil | 6,400 | Jul 17, 1998 | 1 | Aug 2026 |
| Parker J. E. #11942-003-36533 | Hilcorp Energy Company | AndrewsMartin (Consolidated) | Shut inOil | 7,260 | Jul 9, 1998 | 3 | Jul 2026 |
| Dollarhide Unit #1424 CHZ42-003-33584 | Scout Energy Management LLC | AndrewsDollarhide (Clear Fork) | Shut inOil | 7,048 | Jun 25, 1998 | 2 | Aug 2026 |
| Ketchum Mountain East Unit #1204A42-235-33737 | Apache Corporation | IrionKetchum Mt. (Clear Fork) | Shut inOil | 7,721 | Jun 23, 1998 | 3 | Aug 2026 |
| Cummins H. E. -C- #1242-135-37710 | Formentera Operations LLC | EctorGoldsmith (Clear Fork) | ActiveOil | 6,500 | Jun 22, 1998 | 1 | Aug 2026 |
| TXL -B- #142-135-05682 | Hilcorp Energy Company | EctorSlator (Devonian) | ActiveOil | 8,300 | Jun 19, 1998 | 1 | Aug 2026 |
| Baird W. E. #1874C42-495-32705 | Basin Oil & Gas Operating LLC | WinklerKeystone (Consolidated) | ActiveOil | 5,599 | Jun 15, 1998 | 3 | Aug 2026 |
| Flanagan Unit #58142-165-34709 | Hilcorp Energy Company | GainesFlanagan (Clearfork Cons.) | Shut inOil | 9,500 | Jun 12, 1998 | 2 | Aug 2026 |
| Sealy Smith Foundation -a- #3442-495-03386 | Hilcorp Energy Company | WinklerMonahans North (Clearfork) | Shut inOil | 12,455 | Jun 11, 1998 | 2 | Aug 2026 |
| Dollarhide Unit #1334 CHZ42-003-36339 | Scout Energy Management LLC | AndrewsDollarhide (Clear Fork) | ActiveInjection | 6,926 | Jun 10, 1998 | 2 | Aug 2026 |
| Cummins H. E. -C- #1342-135-37711 | Formentera Operations LLC | EctorGoldsmith (Clear Fork) | Shut inOil | 6,400 | Jun 9, 1998 | 1 | Aug 2026 |
| Scott 26 #261242-235-33759 | — | IrionKetchum Mt. (Clear Fork) | Plugged | 5,000 | May 29, 1998 | 1 | — |
| Shafter Lake Clearfork Unit #407142-003-38436 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | Shut inOil | 7,023 | May 27, 1998 | 1 | Aug 2026 |
| Huddleston "DD" #542-415-33690 | Anadarko Petroleum Corp. | ScurrySharon Ridge (Clear Fork) | Not on schedule | 3,500 | May 27, 1998 | 1 | — |
| Robinson, Dobson, Wetzler #1342-415-33688 | Anadarko Petroleum Corp. | ScurrySharon Ridge (Clear Fork) | Not on schedule | 4,000 | May 22, 1998 | 1 | — |
| Robinson, Dobson, Wetzler #1242-415-33689 | Anadarko Petroleum Corp. | ScurrySharon Ridge (Clear Fork) | Not on schedule | 4,000 | May 22, 1998 | 1 | — |
| Ketchum Mountain East Unit #260642-235-33758 | Apache Corporation | IrionKetchum Mt. (Clear Fork) | ActiveOil | 4,400 | May 20, 1998 | 1 | Aug 2026 |
| Sealy Smith Foundation #32542-475-33912 | Occidental Permian Ltd. | WardMonahans (Perm. Tubb #1-3 Cons) | ActiveOil | 5,800 | May 15, 1998 | 3 | Aug 2026 |
| Goldsmith-Cummins /Deep/ Unit #30742-135-37702 | Formentera Operations LLC | EctorGoldsmith (Clear Fork) | ActiveOil | 6,500 | May 13, 1998 | 1 | Aug 2026 |
| Goldsmith-Cummins /Deep/ Unit #30542-135-37703 | Formentera Operations LLC | EctorGoldsmith (Clear Fork) | Shut inOil | 6,450 | May 13, 1998 | 2 | Aug 2026 |
| Goldsmith-Cummins /Deep/ Unit #29642-135-37704 | Formentera Operations LLC | EctorGoldsmith (Clear Fork) | Shut inOil | 6,449 | May 13, 1998 | 2 | Aug 2026 |
| Goldsmith-Cummins /Deep/ Unit #29442-135-37705 | Formentera Operations LLC | EctorGoldsmith (Clear Fork) | ActiveOil | 6,400 | May 13, 1998 | 1 | Aug 2026 |
| Goldsmith-Cummins /Deep/ Unit #29042-135-37706 | Formentera Operations LLC | EctorGoldsmith (Clear Fork) | Shut inOil | 6,450 | May 13, 1998 | 1 | Aug 2026 |
| Goldsmith-Cummins /Deep/ Unit #28942-135-37707 | Formentera Operations LLC | EctorGoldsmith (Clear Fork) | ActiveOil | 6,455 | May 13, 1998 | 2 | Aug 2026 |
| Goldsmith-Cummins /Deep/ Unit #28742-135-37708 | Formentera Operations LLC | EctorGoldsmith (Clear Fork) | ActiveOil | 6,400 | May 13, 1998 | 1 | Aug 2026 |
| Goldsmith-Cummins /Deep/ Unit #30442-135-37709 | Formentera Operations LLC | EctorGoldsmith (Clear Fork) | ActiveOil | 6,400 | May 13, 1998 | 1 | Aug 2026 |
| Bishop #542-415-33668 | Anadarko Petroleum Corp. | ScurrySharon Ridge (Clear Fork) | Not on schedule | 4,000 | May 12, 1998 | 1 | — |
| McDonald #642-371-36833 | Olsen Energy Inc. | PecosPutnam (Clear Fork) | ActiveInjection | 4,000 | May 5, 1998 | 1 | Aug 2002 |
| Edwards C. W. et al #142-475-01153 | Chevron U. S. A. Inc. | WardWildcat | PluggedOil | 9,647 | May 5, 1998 | 1 | Feb 2000 |
| Sealy Smith Foundation -a- #4742-495-31117 | Hilcorp Energy Company | WinklerMonahans North (Clearfork) | Shut inOil | 9,287 | May 1, 1998 | 2 | Aug 2026 |
| Ketchum Mountain East Unit #261142-235-33757 | Apache Corporation | IrionKetchum Mt. (Clear Fork) | ActiveOil | 4,400 | Apr 30, 1998 | 1 | Aug 2026 |
| Cowden E. P. a-15 #8342-003-04902 | Scout Energy Management LLC | AndrewsDollarhide (Yates) | PluggedGas | 2,850 | Apr 20, 1998 | 1 | Sep 2021 |
| Embar -B- #942-003-04508 | Maverick Permian LLC | AndrewsGoldsmith (Clear Fork) | Shut inOil | 9,312 | Apr 14, 1998 | 1 | Mar 2025 |
| Boydell Queen Unit #20342-165-34348 | Unitex Oil & Gas L.L.C. | GainesBoydell (Queen) | ActiveOil | 7,170 | Apr 14, 1998 | 2 | Aug 2026 |
| Ketchum Mt. (Clearford) Unit #340542-235-33755 | Anadarko Petroleum Corp. | IrionKetchum Mt. (Clear Fork) | Not on schedule | 5,000 | Apr 1, 1998 | 1 | — |
| Ketchum Mt. (Clear Fork) Unit #340342-235-33756 | Apache Corporation | IrionKetchum Mt. (Clear Fork) | PluggedOil | 5,000 | Apr 1, 1998 | 1 | Aug 2026 |
| Scott 26 #260242-235-33742 | — | IrionKetchum Mt. (Clear Fork) | Plugged | 5,000 | Mar 31, 1998 | 1 | — |
| Ketchum Mountain East Unit #131242-235-33743 | Apache Corporation | IrionKetchum Mt. (Clear Fork) | ActiveOil | 4,400 | Mar 31, 1998 | 1 | Aug 2026 |
| Ketchum Mountain East Unit #261642-235-33744 | Apache Corporation | IrionKetchum Mt. (Clear Fork) | Shut inOil | 4,350 | Mar 31, 1998 | 1 | Aug 2026 |
| Boydell South Unit #90442-003-38403 | Texland Petroleum L.P. | AndrewsBoydell S. (Clear Fork Lo.) | ActiveOil | 7,630 | Mar 30, 1998 | 1 | Aug 2026 |
| Univ. 11 Sec. 13 #3B42-003-30116 | Hilcorp Energy Company | AndrewsMartin (Consolidated) | ActiveOil | 8,130 | Mar 27, 1998 | 2 | Aug 2026 |
| Hunt #142-371-30221 | Portana Properties LLC | PecosAbell (Permian-General) | Shut inOil | 3,881 | Mar 24, 1998 | 1 | Mar 2024 |
| Ketchum Mountain East Unit #1313W42-235-33740 | Apache Corporation | IrionKetchum Mt. (Clear Fork) | Shut inOil | 4,350 | Mar 23, 1998 | 2 | Aug 2026 |
| Sugg 27 #270142-235-33741 | — | IrionKetchum Mt. (Clear Fork) | Plugged | 5,000 | Mar 23, 1998 | 2 | — |
| Waddell TR 1 #124842-103-34623 | Blackbeard Operating LLC | CraneRM (Clearfork) | PluggedOil | 5,425 | Mar 12, 1998 | 2 | Oct 2011 |
| Brennand H. D. #23HZ42-335-32781 | Chevron U. S. A. Inc. | MitchellWestbrook (Clear Fork Upper) | PluggedOil | 3,400 | Mar 9, 1998 | 3 | Aug 2026 |
| Robertson Unit #48HHZ42-165-32365 | Bce-Mach III LLC | GainesRobertson N. (Clear Fork 7100) | Shut inOil | 6,849 | Mar 6, 1998 | 2 | Aug 2026 |
| Sugg/Farmar "9" #91242-235-33738 | Anadarko Petroleum Corp. | IrionKetchum Mt. (Clear Fork) | Not on schedule | 5,000 | Mar 6, 1998 | 1 | — |