| 1 | T & C Oil, Inc. | Lubbock, TX 79424 | Oil & Gas Operator | Apr 2024 |
| 2 | T & D Oil | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2025 |
| 3 | T & G Energy LLC | Dallas, TX 75230 | Oil Operator | Nov 2010 |
| 4 | T & G Oil, Inc. | White Oak, TX 75693 | Oil & Gas Operator | Dec 2010 |
| 5 | T & I Petroleum Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2005 |
| 6 | T & J Oil Production, L.L.C. | Lone Grove, OK 73443 | Oil & Gas Operator | Dec 2024 |
| 7 | T & M Oil Company | Midlothian, TX 76065 | Oil & Gas Operator | Mar 2025 |
| 8 | T & R Investments, Inc. | Borger, TX 79008 | Oil & Gas Operator | Nov 1995 |
| 9 | T & T Oil Co. | San Antonio, TX 78205 | Oil & Gas Operator | Dec 2002 |
| 10 | T & T Production Co. | Victoria, TX 77902 | Oil & Gas Operator | Feb 1995 |
| 11 | T - C Oil Company | Refugio, TX 78377 | Oil & Gas Operator | Jan 2012 |
| 12 | T Dozer D Oil Co. | Goree, TX 76363 | Oil & Gas Operator | Mar 2025 |
| 13 | T J Water Works, A Texas LLC | Ballinger, TX 76821 | Oil & Gas Operator | Mar 2025 |
| 14 | T M Hopkins Operating Co | Kilgore, TX 75663 | Oil & Gas Operator | Oct 2002 |
| 15 | T W Clemons Operating Co., LLC | Minden, LA 71055 | Oil & Gas Operator | Mar 2025 |
| 16 | T&R Energy Services | Pampa, TX 79065 | Oil & Gas Operator | Mar 2025 |
| 17 | T&T Energy LLC | Wooster, OH 44691 | Oil & Gas Operator | Dec 2024 |
| 18 | T-Bar-X Limited Company | Houston, TX 77057 | Oil & Gas Operator | Dec 2005 |
| 19 | T-C Oil Company, LLC | Refugio, TX 78377 | Oil & Gas Operator | Mar 2025 |
| 20 | T-M Well Service | Jefferson, TX 75657 | Oil & Gas Operator | Sep 2004 |
| 21 | T-M Well Service, L.L.C. | Jefferson, TX 75657 | Oil & Gas Operator | Dec 2024 |
| 22 | T-N-T Engineering, Inc. | Fort Worth, TX 76107 | Oil & Gas Operator | Mar 2025 |
| 23 | T-Square Petroleum Co. | Rising Star, TX 76471 | Oil & Gas Operator | Mar 2025 |
| 24 | T-Y Development Corp | Perryton, TX 79070 | Oil & Gas Operator | Mar 2025 |
| 25 | T. A. W. Company | Kingsbury, TX 78638 | Oil & Gas Operator | Mar 2025 |
| 26 | T. And M. Production | Oil City, LA 71061 | Oil & Gas Operator | Mar 2025 |
| 27 | T. J. Oil And Gas, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Oct 2002 |
| 28 | T. L. J. Incorporated | Big Lake, TX 76932 | Oil & Gas Operator | Dec 1998 |
| 29 | T. N. T. Energy Co. | Belcher, LA 71004 | Oil Operator | May 1991 |
| 30 | T. R. Production, Inc. | Pilot Point, TX 76258 | Oil & Gas Operator | Jul 2021 |
| 31 | T. W. Drilling Co. | Abilene, TX 79601 | Oil & Gas Operator | Aug 2002 |
| 32 | T.D. Operating Company, Inc. | New Braunfels, TX 78130 | Oil & Gas Operator | Nov 1999 |
| 33 | T.F. Well Service, L.L.C. | Iowa Park, TX 76367 | Oil Operator | Mar 2025 |
| 34 | T.G.B., Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 35 | T.L.S. Oil Co. | Hawley, TX 79525 | Oil & Gas Operator | Mar 2025 |
| 36 | T.O.I. | Midland, TX 79710 | Oil & Gas Operator | Mar 2001 |
| 37 | T2 Operating Corporation | Denver, CO 80202 | Oil & Gas Operator | Mar 2025 |
| 38 | Tab Operating, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2025 |
| 39 | Tabbs Bay Production Company | Houston, TX 77019 | Oil Operator | Mar 2025 |
| 40 | Tabco Exploration Inc. | New Orleans, LA 70131 | Oil & Gas Operator | Dec 1998 |
| 41 | Tabor Creek Oil Company | Albany, TX 76430 | Oil & Gas Operator | Mar 2025 |
| 42 | Tabula Rasa Energy, LLC | Allen, TX 75013 | Oil & Gas Operator | Dec 2020 |
| 43 | Tacor Resources Inc | Midland, TX 79705 | Oil & Gas Operator | Mar 2025 |
| 44 | Tactical Oil & Gas, LLC | Odessa, TX 79768 | Oil & Gas Operator | Mar 2025 |
| 45 | Tactical Operating Company, LLC | Houston, TX 77042 | Oil & Gas Operator | Mar 2025 |
| 46 | Taft Investment Co., Inc. | Taft, TX 78390 | Oil Operator | Mar 2025 |
| 47 | Tag Enterprises Inc | Shelocta, PA 15774-0310 | Gas Operator | Dec 2016 |
| 48 | Tag Oil | La Vernia, TX 78121 | Oil Operator | Mar 2025 |
| 49 | Tag Operating Company, Inc. | Houston, TX 77092 | Oil & Gas Operator | Mar 2025 |
| 50 | Tahiti PTRS Enrgy Solutions Corp | Long Beach, CA 90807 | Oil Operator | Mar 2025 |
| 51 | Tahoe Energy, Inc. | Midland, TX 79703 | Oil & Gas Operator | Jul 1996 |
| 52 | Tahoe Exploration Inc. | Abilene, TX 79608 | Oil & Gas Operator | Mar 2016 |
| 53 | Tal-Con, Inc. | Houston, TX 77279 | Oil & Gas Operator | Mar 2025 |
| 54 | Talaria Oil & Gas LLC | Denver, CO 80203 | Oil Operator | Mar 2025 |
| 55 | Talbert, Eugene Operating Co,Inc | Tyler, TX 75702 | Oil & Gas Operator | Dec 1997 |
| 56 | Talbott, Stan C. | Midland, TX 79701 | Oil & Gas Operator | Feb 2005 |
| 57 | Taleeho Energy Co. | Normangee, TX 77871 | Oil & Gas Operator | Jun 2003 |
| 58 | Talisman Energy USA Inc. | The Woodlands, TX 77381 | Oil & Gas Operator | May 2016 |
| 59 | Talisman Resources, Inc. | Argyle, TX 76226 | Oil & Gas Operator | Mar 1995 |
| 60 | Tall City Operations III LLC | Midland, TX 79702 | Oil & Gas Operator | Jun 2023 |
| 61 | Tall City Operations LLC | Midland, TX 79702 | Oil & Gas Operator | Feb 2016 |
| 62 | Tall Dune Resources, LLC | Boerne, TX 78006 | Oil & Gas Operator | Mar 2025 |
| 63 | Talley Resources, Inc. | Houma, LA 70360 | Oil & Gas Operator | Apr 1993 |
| 64 | Talley, Don R. | Holliday, TX 76366 | Oil & Gas Operator | Jun 2002 |
| 65 | Talley, W.T. | Olney, TX 76374 | Oil & Gas Operator | May 2005 |
| 66 | Tallgrass Energy, L.L.C. | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2025 |
| 67 | Tallgrass Production Company LLC | Santa Anna, TX 76878 | Oil & Gas Operator | Mar 2014 |
| 68 | Talon Development Company | Boerne, TX 78006 | Oil & Gas Operator | Sep 2007 |
| 69 | Talon Oil & Gas LLC | Dallas, TX 75243 | Oil & Gas Operator | Dec 2010 |
| 70 | Talon Production, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2025 |
| 71 | Talos Gulf Coast Onshore LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 72 | Talus Inc | Graham, TX 76450-1210 | Oil & Gas Operator | Feb 2017 |
| 73 | Tam2 Squared Energy Services,LLC | Ranger, TX 76470 | Oil Operator | Mar 2025 |
| 74 | Tam2 Squared Operating, LLC | Ranger, TX 76470 | Oil & Gas Operator | Mar 2025 |
| 75 | Tamarack Petroleum Company, Inc. | Midland, TX 79701 | Oil & Gas Operator | Mar 2025 |
| 76 | Tamarron Resources, Inc. | Azle, TX 76020 | Oil & Gas Operator | Mar 2025 |
| 77 | Tamer Oil & Gas | Seminole, TX 79360 | Oil & Gas Operator | Mar 2025 |
| 78 | Tammany Exploration Company LLC | Houston, TX 77070 | Gas Operator | Jul 2012 |
| 79 | Tampke Service Co. | Devine, TX 78016 | Oil Operator | Mar 2025 |
| 80 | Tana Exploration Company LLC | Dallas, TX 75219 | Oil & Gas Operator | Aug 2021 |
| 81 | Tana Oil And Gas Corporation | Irving, TX 75062 | Oil & Gas Operator | Mar 2000 |
| 82 | Tandem Energy Corporation | Houston, TX 77056 | Oil & Gas Operator | Mar 2025 |
| 83 | Tanglehead Operating, LLC | La Vernia, TX 78121 | Oil Operator | Mar 2025 |
| 84 | Tanglewood Oil & Gas Co. | Gouldbusk, TX 76845 | Oil & Gas Operator | Mar 2025 |
| 85 | Tanglewood Oil & Gas LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2017 |
| 86 | Tankersley, D. C. | Abilene, TX 79601 | Oil & Gas Operator | Sep 2002 |
| 87 | Tanos Exploration II, LLC | Tyler, TX 75701 | Oil & Gas Operator | Sep 2023 |
| 88 | Tanos Exploration IV, LLC | Tyler, TX 75701 | Oil & Gas Operator | Mar 2025 |
| 89 | Tanos Exploration, LLC | Houston, TX 77010 | Oil & Gas Operator | Oct 2018 |
| 90 | Tanos Production, Inc. | Houston, TX 77077 | Oil & Gas Operator | Aug 2003 |
| 91 | Taos Resources Operating Co LLC | Houston, TX 77037 | Oil & Gas Operator | Dec 2019 |
| 92 | Tap Operating Company, Inc. | Mexia, TX 76667 | Oil & Gas Operator | May 1995 |
| 93 | Tap Rock Operating, LLC | Golden, CO 80401 | Oil & Gas Operator | Mar 2025 |
| 94 | Tapstone Energy LLC | Oklahoma City, OK 73101 | Oil & Gas Operator | Jan 2025 |
| 95 | Tara Company, The | Wichita Falls, TX 76301 | Oil Operator | Sep 2003 |
| 96 | Tara Operating Co. | Lamesa, TX 79331 | Oil & Gas Operator | Aug 2003 |
| 97 | Tare Resources, LLC | Corpus Chrsti, TX 78426 | Oil & Gas Operator | Mar 2025 |
| 98 | Targa Midstream Services LLC | Houston, TX 77002 | Oil Operator | Mar 2023 |
| 99 | Targa Pipeline Mid-Continent LLC | Sulphur, LA 70665 | Oil & Gas Operator | Jun 2018 |
| 100 | Targo Oil & Gas, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Mar 2025 |