| University -D- #202542-003-33889 | Ovintiv USA Inc. only | AndrewsHutex (Devonian) | ActiveOil | 12,637 | Nov 24, 1999 | 3 | Apr 2026 |
| Barnet Rosa H. -D- #1C42-461-04061 | Petx Operating LLC only | UptonKing Mountain (Devonian) | ActiveOil | 11,855 | Nov 19, 1999 | 1 | Apr 2026 |
| North Cross /Dev./ Unit #15542-103-34700 | Occidental Permian Ltd. only | CraneCrossett (Devonian) | ActiveOil | 5,400 | Nov 18, 1999 | 1 | Apr 2026 |
| Block 31 Unit #a 15A42-103-33550 | Hilcorp Energy Company only | CraneBlock 31 (Devonian) | ActiveGas | 9,100 | Nov 16, 1999 | 2 | Apr 2026 |
| Parks Field Unit No. 2 #180242-329-00837 | XTO Energy Inc. only | MidlandParks (Devonian) | Temporarily abandonedGas | 11,980 | Nov 10, 1999 | 1 | Apr 2025 |
| Eldon State #142-371-30633 | Pure Resources L.P. only | PecosGomez (Wolfcamp Detrital) | PluggedGas | 22,800 | Nov 8, 1999 | 1 | Apr 2000 |
| Fasken Blk. -EA- a/C 3 #442-003-03639 | Libertad Operating LLC only | AndrewsEmma (Devonian) | Shut inOil | 11,155 | Nov 4, 1999 | 2 | — |
| Parks #242-329-32391 | Reverence Operating LLC only | MidlandDora Roberts (Consolidated) | ActiveOil | 12,540 | Nov 4, 1999 | 2 | Apr 2026 |
| State Walton -E- a/C 4 #21M42-495-02920 | Formentera Operations LLC only | WinklerKermit (McKee) | ActiveOil | 10,680 | Nov 4, 1999 | 1 | Apr 2026 |
| Arco-University B #142-461-32104 | BCP Resources LLC only | UptonBenedum (Devonian Gas) | ActiveGas | 11,415 | Oct 29, 1999 | 2 | Feb 2026 |
| Pegasus Field Unit #3 #11642-329-01039 | XTO Energy Inc. only | MidlandPegasus (Devonian) | Shut inOil | 12,900 | Oct 28, 1999 | 2 | Apr 2026 |
| Pegasus Field Unit #3 #130842-461-03382 | XTO Energy Inc. only | UptonPegasus (Devonian) | PluggedGas | 12,780 | Oct 25, 1999 | 1 | Apr 2026 |
| Mackey 29 #1HZ42-329-34215 | Diamondback E&P LLC only | MidlandBryant -G- (Devonian) | ActiveOil | 12,088 | Oct 20, 1999 | 1 | Apr 2026 |
| Scharbauer C. a NCT-2 #5HHZ42-329-34212 | Chevron U. S. A. Inc. only | MidlandBryant -G- (Devonian) | Shut inOil | 11,870 | Oct 11, 1999 | 1 | Apr 2019 |
| Evans Mary Kate #142-003-10976 | Sanchez Basin Resources LLC only | AndrewsRialto (Devonian) | ActiveOil | 9,773 | Oct 8, 1999 | 1 | Mar 2026 |
| McElroy J. T. Cons. #939W42-461-30640 | Scout Energy Management LLC only | UptonMcElroy | PluggedOil | 12,500 | Oct 6, 1999 | 3 | Apr 2026 |
| University F #242-003-02074 | United Operating LLC *** only | AndrewsAndrews South (Wolfcamp) | PluggedOil | 11,102 | Sep 24, 1999 | 2 | Apr 2001 |
| Scharbauer C. a NCT-2 #4HHZ42-329-34201 | Chevron U. S. A. Inc. only | MidlandBryant -G- (Devonian) | Shut inOil | 11,870 | Sep 23, 1999 | 2 | Apr 2019 |
| Ratliff & Bedford #4442-003-38529 | Hilcorp Energy Company only | AndrewsBedford (Devonian) | Shut inOil | 9,300 | Sep 22, 1999 | 1 | Apr 2026 |
| Naniq #142-165-31303 | McDonnold Operating Inc. only | GainesSeminole Southwest (Devonian) | ActiveInjection | 11,890 | Sep 10, 1999 | 2 | — |
| HNG Fee 57 #142-475-30695 | Abraxas Petroleum Corporation only | WardTaurus (Atoka) | ActiveGas | 17,620 | Sep 10, 1999 | 3 | Dec 2023 |
| State LB #842-103-33458 | Scout Energy Management LLC only | CraneBlock 31 (Penn. 7620) | Shut inOil | 9,500 | Sep 8, 1999 | 2 | Apr 2026 |
| Boultinghouse M. T. 11 #1DHZ42-329-34188 | Apache Corporation only | MidlandPegasus (Devonian) | PluggedGas | 12,000 | Sep 3, 1999 | 2 | Jan 2017 |
| Tippett June #74HZ42-329-34165 | Apache Corporation only | MidlandPegasus (Devonian) | PluggedGas | 12,000 | Aug 31, 1999 | 2 | — |
| Scharbauer C. a NCT-2 #3HHZ42-329-34185 | Chevron U. S. A. Inc. only | MidlandBryant -G- (Devonian) | Shut inOil | 16,800 | Aug 31, 1999 | 3 | Apr 2019 |
| Blackstone-Slaughter J #142-371-10844 | Vaquero Operating only | PecosGrey Ranch (Devonian) | ActiveGas | 14,603 | Aug 31, 1999 | 1 | Mar 2026 |
| Andrews Unit #71742-003-06837 | Hilcorp Energy Company only | AndrewsAndrews (Wolfcamp-Penn.) | ActiveInjection | 12,360 | Aug 27, 1999 | 1 | Apr 2026 |
| Hoelscher F. J. B #142-173-31707 | R2Q Operating LLC only | GlasscockFrysak Farms (Devonian) | ActiveGas | 10,572 | Aug 24, 1999 | 3 | Mar 2026 |
| Edwards Trey 26-18 #142-475-34608 | OXY USA Inc. only | WardSand Hills West (Devonian) | PluggedGas | 9,800 | Aug 20, 1999 | 1 | Dec 2008 |
| Hendrick T. G. Unit #1 L42-495-01790 | Devon Energy Production Co L.P. only | WinklerEmperor (Ellenburger) | PluggedGas | 11,415 | Aug 18, 1999 | 1 | — |
| Moss E #1 U42-135-10049 | Hilcorp Energy Company only | EctorHarper (Strawn) | PluggedOil | 10,830 | Aug 16, 1999 | 1 | Apr 2026 |
| McIntosh 21 #1HZ42-329-34178 | Diamondback E&P LLC only | MidlandBryant -G- (Devonian) | ActiveGas | 12,102 | Aug 16, 1999 | 1 | Apr 2026 |
| Barnet Rosa H. -D- #4 L42-461-04063 | Petx Operating LLC only | UptonKing Mt. (Strawn) | ActiveOil | 11,873 | Aug 11, 1999 | 2 | Apr 2026 |
| Wheeler R. A. #242-495-05450 | Apv McCamey LLC only | WinklerWheeler (Wolfcamp) | Shut inOil | 10,652 | Aug 9, 1999 | 3 | Nov 2015 |
| Brown & Altman B #4642-495-02078 | Hilcorp Energy Company only | WinklerEmperor (Wolfcamp Upper) | Shut inOil | 9,380 | Aug 6, 1999 | 2 | Mar 2019 |
| Madison #142-135-37732 | Anadarko E&P Company LP only | EctorP-Bar (Wolfcamp) | PluggedOil | 13,100 | Jul 22, 1999 | 2 | Mar 2003 |
| Scharbauer C. E NCT-1 #2HHZ42-329-33653 | Chevron U. S. A. Inc. only | MidlandParks N. (Penn.) | ActiveWater Supply | 15,821 | Jul 22, 1999 | 4 | Jun 2014 |
| Pegasus Field Unit #3 #270142-461-03069 | XTO Energy Inc. only | UptonPegasus (Devonian) | ActiveGas | 13,170 | Jul 22, 1999 | 2 | Apr 2026 |
| Pegasus Field Unit #3 #1405HHZ42-461-33364 | XTO Energy Inc. only | UptonPegasus (Devonian) | ActiveGas | 15,660 | Jul 22, 1999 | 3 | — |
| Halley S. M. #17242-495-04746 | Chevron U. S. A. Inc. only | WinklerHalley (Montoya) | PluggedOil | 12,000 | Jul 22, 1999 | 1 | Jan 2000 |
| Maria a #142-165-35436 | Eliteenergyholdings LLC only | GainesGlasco (Devonian) | Shut inOil | 12,576 | Jul 21, 1999 | 1 | Mar 2026 |
| Tippett June #77HZ42-329-34173 | Apache Corporation only | MidlandPegasus (Devonian) | PluggedGas | 12,000 | Jul 14, 1999 | 2 | — |
| Scharbauer C. a NCT-2 #1HHZ42-329-30369 | Chevron U. S. A. Inc. only | MidlandBryant -G- (Devonian) | Shut inOil | 13,160 | Jul 9, 1999 | 1 | Apr 2019 |
| Tippett June #76HZ42-329-34171 | Apache Corporation only | MidlandPegasus (Devonian) | PluggedGas | 12,000 | Jul 8, 1999 | 2 | — |
| Robinson #342-501-30013 | Paladin Energy Corp. only | YoakumWBD (Devonian) | PluggedOil | 11,200 | Jul 8, 1999 | 3 | May 2000 |
| Troporo /Devonian/ Unit #30942-371-36915 | P.o.&g. Operating LLC only | PecosTroporo (Devonian) | PluggedOil | 6,000 | Jul 1, 1999 | 1 | Apr 2026 |
| Moore Wayne #1442-371-10862 | XTO Energy Inc. only | PecosWaha (Montoya FB-3) | ActiveGas | 17,258 | Jun 30, 1999 | 1 | Mar 2026 |
| Garrett #1701HHZ42-329-34170 | Endeavor Energy Resources L.P. only | MidlandMidland SW. (Devonian) | PluggedGas | 17,531 | Jun 22, 1999 | 2 | Nov 2020 |
| Jasper W. S. #1 U42-495-00171 | Concho Resources Inc. only | WinklerJasper (Mississippian) | PluggedOil | 11,935 | Jun 14, 1999 | 1 | Aug 1999 |
| Brooks #142-329-31770 | Pioneer Natural Res. USA Inc. only | MidlandDesperado (Atoka) | Shut inOil | 12,000 | Jun 9, 1999 | 3 | Jun 2024 |