| 1 | 5H Oil Co., LLC | Dallas, TX 75225 | Oil & Gas Operator | Dec 2016 |
| 2 | 7S Oil & Gas, LLC | Midland, TX 79706 | Oil & Gas Operator | Dec 2019 |
| 3 | 801 LLC | Artesia, NM 88211 | Oil & Gas Operator | Oct 2023 |
| 4 | A & B Oil | Monahans, TX 79756 | Oil & Gas Operator | Feb 2026 |
| 5 | A & B Oil Company | Monahans, TX 79756 | Oil & Gas Operator | Apr 2015 |
| 6 | A&M Oil & Gas LLC | Kermit, TX 79745 | Oil & Gas Operator | Feb 2026 |
| 7 | Abel, M.D. Co. | Lampasas, TX 76550 | Oil & Gas Operator | Jun 2017 |
| 8 | Abraxas Petroleum Corporation | San Antonio, TX 78259 | Oil & Gas Operator | Feb 2026 |
| 9 | Abraxas Production Corporation | San Antonio, TX 78270 | Oil & Gas Operator | Sep 1999 |
| 10 | Accidie Exploration And Dev.,Inc | Plano, TX 75023 | Oil & Gas Operator | Feb 2026 |
| 11 | Aghorn Operating, Inc. | Odessa, TX 79768 | Oil & Gas Operator | Feb 2026 |
| 12 | Alchemist Energy, LLC | Irving, TX 75062 | Oil & Gas Operator | Feb 2026 |
| 13 | Alcon H2oil LLC | Pecos, TX 79772 | Oil & Gas Operator | Feb 2026 |
| 14 | Alegre Energy, Inc. | San Antonio, TX 78216 | Oil & Gas Operator | Feb 2026 |
| 15 | Alps Oil Company | Odessa, TX 79760 | Oil & Gas Operator | Aug 1999 |
| 16 | Altura Energy LTD. | Houston, TX 77210 | Oil & Gas Operator | Apr 2000 |
| 17 | American Quasar Petroleum Co. | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2014 |
| 18 | Amoco Production Company | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
| 19 | Amtex Energy | Midland, TX 79702 | Oil & Gas Operator | Aug 1995 |
| 20 | Amtex Energy, Inc. | Fort Worth, TX 76147 | Oil & Gas Operator | Feb 2026 |
| 21 | Anadarko E&P Onshore LLC | Houston, TX 77046 | Oil & Gas Operator | Feb 2026 |
| 22 | Anadarko Petroleum Corporation | Houston, TX 77251 | Oil & Gas Operator | Dec 2025 |
| 23 | Angelo, Ernest, Jr. | Midland, TX 79701 | Oil & Gas Operator | Mar 2008 |
| 24 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Feb 2026 |
| 25 | Apex Resources LLC | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 26 | Apv McCamey LLC | MC Camey, TX 79752 | Oil & Gas Operator | Feb 2026 |
| 27 | Arabella Operating, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Feb 2026 |
| 28 | Arabella Petroleum Company, LLC | Austin, TX 78701 | Oil & Gas Operator | Feb 2026 |
| 29 | Arch Oil & Gas, LLC | Ennis, TX 75119 | Oil & Gas Operator | Feb 2026 |
| 30 | Arco Oil & Gas Company | Plano, TX 75086 | Oil & Gas Operator | Mar 2006 |
| 31 | Arco Permian | Houston, TX 77079 | Oil & Gas Operator | Dec 2001 |
| 32 | Arena Production Company | Midland, TX 79710 | Oil & Gas Operator | Feb 2026 |
| 33 | Argee Oil Company | Midland, TX 79702 | Gas Operator | May 1994 |
| 34 | Argus Drilling, LLC | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 35 | Arrington Oil&Gas Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 36 | Arrington,David H. Oil & Gas,Inc | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 37 | Associated Operating & Explor. | Dallas, TX 75243 | Oil & Gas Operator | Feb 2026 |
| 38 | Atapco | Houston, TX 77040 | Oil & Gas Operator | Feb 1999 |
| 39 | Atlantic Exploration, LLC | Midland, TX 79701 | Oil & Gas Operator | Apr 2015 |
| 40 | Atlantic Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 2015 |
| 41 | Avra Oil Co | Dallas, TX 75248 | Oil & Gas Operator | Feb 2026 |
| 42 | Baber Well Servicing Co. | Hobbs, NM 88240 | Oil & Gas Operator | May 1995 |
| 43 | Basic Energy Services, L.P. | Fort Worth, TX 76102 | Oil Operator | Feb 2026 |
| 44 | Basin Oil & Gas Operating LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Feb 2026 |
| 45 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 46 | Baxter, Kelly H. | Austin, TX 78767 | Oil & Gas Operator | Mar 2008 |
| 47 | Baxter, Kelly H. Oil And Gas Co. | Austin, TX 78767 | Oil & Gas Operator | Nov 2010 |
| 48 | Bay Tan Operating, LP | Odessa, TX 79765 | Oil & Gas Operator | Feb 2026 |
| 49 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Feb 2026 |
| 50 | BCP Resources, LLC | Midland, TX 79705 | Oil & Gas Operator | Feb 2026 |
| 51 | Beach Oil & Gas, Inc. | Lubbock, TX 79464 | Oil & Gas Operator | Feb 2026 |
| 52 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 53 | Bennett, M. Brad Inc. | Midland, TX 79710 | Oil & Gas Operator | Dec 2005 |
| 54 | Bennett, M. Brad LP | Midland, TX 79710 | Oil & Gas Operator | Jan 2006 |
| 55 | Berry, O. H. | Midland, TX 79702 | Oil & Gas Operator | Dec 1993 |
| 56 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 57 | Bevo Production Co. | Amarillo, TX 79101 | Oil & Gas Operator | Dec 2014 |
| 58 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 59 | Blackbeard Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Feb 2026 |
| 60 | Blair, Jack N. | Midland, TX 79702 | Oil & Gas Operator | May 1996 |
| 61 | Bledsoe Partners, Inc. | Oklahoma City, OK 73120 | Oil & Gas Operator | Mar 1995 |
| 62 | Blue Arrow Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Feb 2026 |
| 63 | Boaz Energy II Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Feb 2026 |
| 64 | Bosque Texas Oil LLC | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 65 | Boyd & McWilliams Energy Group | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 66 | Boyd, Foy Associates, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jul 1996 |
| 67 | Boyd, Foy Management Corp. | Midland, TX 79702 | Oil & Gas Operator | Dec 2004 |
| 68 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Nov 2025 |
| 69 | BP Prod. Corp. | Richardson, TX 75083 | Oil & Gas Operator | Feb 2026 |
| 70 | Bralex Operating LLC | Dallas, TX 75367 | Oil & Gas Operator | Feb 2026 |
| 71 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 72 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Nov 2025 |
| 73 | Breitburn Operating LP | Keithville, LA 71047 | Oil & Gas Operator | Feb 2026 |
| 74 | Bridge Oil Company LP | Midland, TX 79702 | Oil & Gas Operator | May 1999 |
| 75 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2026 |
| 76 | Bright & Company | The Colony, TX 75056 | Oil & Gas Operator | May 2015 |
| 77 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 78 | Brothers Production Company Inc. | Midland, TX 79708 | Oil & Gas Operator | Feb 2026 |
| 79 | Brown, H. L., Jr. | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 80 | Browning Oil Company, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Feb 2026 |
| 81 | BRP Energy, LLC | San Angelo, TX 76902 | Oil & Gas Operator | Feb 2026 |
| 82 | Bta Oil Producers | Midland, TX 79701 | Oil & Gas Operator | Sep 2009 |
| 83 | Bta Oil Producers, LLC | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 84 | Bugington Energy, LLC | Odessa, TX 79768 | Oil & Gas Operator | Apr 2018 |
| 85 | Burkholder, Terry L., Inc. | Pecos, TX 79772 | Oil & Gas Operator | Mar 2002 |
| 86 | Burlington Resources O&G | Midland, TX 79710-1810 | Oil & Gas Operator | Mar 1997 |
| 87 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |
| 88 | Bustamante Resources LLC | Midland, TX 79710 | Oil & Gas Operator | Feb 2026 |
| 89 | Butler, C. D. | Grandfalls, TX 79742 | Oil & Gas Operator | Dec 2004 |
| 90 | Butler, Kevin O. & Assoc., Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 91 | C & N Oil Co | Monahans, TX 79756 | Oil Operator | Feb 2026 |
| 92 | Cabal Energy Corporation | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 93 | Callon (Permian) LLC | Houston, TX 77042 | Oil & Gas Operator | Jul 2024 |
| 94 | Callon Permian II, LLC | Houston, TX 77056 | Oil & Gas Operator | Jul 2024 |
| 95 | Callon Petroleum Operating Co | Houston, TX 77042 | Oil & Gas Operator | Jul 2024 |
| 96 | Caprock Exploration, Inc. | Monahans, TX 79756 | Oil & Gas Operator | Feb 2026 |
| 97 | Cardwell Oil Corporation | Midland, TX 79710 | Oil & Gas Operator | Feb 2026 |
| 98 | Carrizo (Permian) LLC | Houston, TX 77042 | Oil & Gas Operator | Jan 2020 |
| 99 | Cazador Operating, LLC | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 100 | Celero Energy LP | Midland, TX 79701 | Oil & Gas Operator | May 2011 |