| 29401 | Tee Operating Company | | Oil & Gas Operator | Jun 1989 |
| 29402 | Teel 78 A | | Gas Operator | Dec 1980 |
| 29403 | Teel 79a | | Gas Operator | Dec 1980 |
| 29404 | Teepee Oil & Gas Inc | Yukon, OK 73085 | Oil Operator | Dec 2006 |
| 29405 | Teg Midcontinent, Inc. | Aurora, CO 80014 | Oil Operator | Jul 2013 |
| 29406 | Tega Operating Co. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2012 |
| 29407 | Tehi Illinois, LLC | Olney, IL 62450 | Oil & Gas Operator | Feb 2019 |
| 29408 | Teichgraeber Oil | | Oil Operator | Nov 1995 |
| 29409 | Teichgraeber Oil Co. | | Oil Operator | Dec 1994 |
| 29410 | Teichgraeber Oil, Inc. | Eureka, KS 67045 | Oil & Gas Operator | Dec 2024 |
| 29411 | Tej Ventures | | Oil & Gas Operator | Dec 2002 |
| 29412 | Tejas Gas Corp | | Oil & Gas Operator | Dec 1974 |
| 29413 | Tejas Gas Pipeline Company | Houston, TX 77010 | Oil & Gas Operator | Apr 1998 |
| 29414 | Tejas Gas Pipeline, L.P. | Houston, TX 77002 | Oil & Gas Operator | Feb 2002 |
| 29415 | Tejas Jack Sales, Inc. | Big Lake, TX 76932 | Oil & Gas Operator | Apr 2025 |
| 29416 | Tejas Operating Company, Inc. | Houston, TX 77257 | Oil & Gas Operator | May 1995 |
| 29417 | Tejas Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Apr 2025 |
| 29418 | Tejas Operators, Inc. | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 29419 | Tejas Permian Operating, LLC | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 29420 | Tejas Petroleum Resources, LLC | Aubrey, TX 76227 | Oil & Gas Operator | Apr 2025 |
| 29421 | Tejas Production Company | | Oil Operator | Nov 1979 |
| 29422 | Tejas Trucking, Inc. | Andrews, TX 79714 | Oil & Gas Operator | Apr 2025 |
| 29423 | Tejas Western Corp. | Granbury, TX 76048 | Oil & Gas Operator | Jul 2018 |
| 29424 | Tejones Operating Corporation | San Antonio, TX 78217 | Oil & Gas Operator | Apr 2025 |
| 29425 | Teke Production LLC | Houston, TX 77269 | Oil Operator | Apr 2025 |
| 29426 | Tekenergy, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 29427 | Tekna Synergy Corporation | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 29428 | Teko Oil & Gas I | | Oil Operator | Aug 1992 |
| 29429 | Teleo Operating, LLC | Dallas, TX 75219 | Oil & Gas Operator | Apr 2009 |
| 29430 | Telesis Operating Co. | Fort Worth, TX 76116 | Oil & Gas Operator | Apr 2025 |
| 29431 | Telico Minerals, L.L.C. | | Oil & Gas Operator | Oct 2019 |
| 29432 | Tellurian Operating LLC | | Oil & Gas Operator | Jun 2024 |
| 29433 | Tellus Energy, LLC | | Oil & Gas Operator | Dec 2024 |
| 29434 | Tellus Operating Group, LLC | | Oil & Gas Operator | Jan 2025 |
| 29435 | Tema Oil And Gas Company | Houston, TX 77084 | Oil & Gas Operator | Apr 2025 |
| 29436 | Tema Oil And Gas, LLC | Houston, TX 77040 | Oil & Gas Operator | Apr 2000 |
| 29437 | Tema Oil Company | Amarillo, TX 79101 | Oil & Gas Operator | Jun 2009 |
| 29438 | Temagami Oil & Gas LTD | | Oil & Gas Operator | May 2007 |
| 29439 | Tember Oil Company | Holliday, TX 76366 | Oil & Gas Operator | Apr 2025 |
| 29440 | Temblor Petroleum Co. LLC | | Oil & Gas Operator | Dec 2024 |
| 29441 | Temescal Resources LLC | | Oil & Gas Operator | Dec 2024 |
| 29442 | Temex Energy, Inc. | Oklahoma City, OK 73101 | Oil & Gas Operator | Feb 2002 |
| 29443 | Tempel Contracting, Inc. | Joplin, MT 59531 | Gas Operator | Jan 2025 |
| 29444 | Tempest Energy Resources, LP | Houston, TX 77251 | Oil & Gas Operator | Jun 2013 |
| 29445 | Tempest Oil Company, Inc. | | Oil & Gas Operator | Jul 1978 |
| 29446 | Templar Operating LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Jan 2025 |
| 29447 | Temple Oil & Gas Co | Crooksville, OH 43731 | Oil & Gas Operator | Dec 2023 |
| 29448 | Temple Oil Co | | Oil & Gas Operator | Oct 1992 |
| 29449 | Temple Resources LLC | | Oil Operator | Dec 2024 |
| 29450 | Templeton Energy Inc | | Oil & Gas Operator | Jul 1987 |
| 29451 | Templeton Oil, Inc. | Houston, TX 77002 | Oil & Gas Operator | Nov 1994 |
| 29452 | Tempo Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 29453 | Tempo Resources GP, LLC | Mineral Wells, TX 76068 | Oil & Gas Operator | Apr 2013 |
| 29454 | Ten A Coal Company | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2020 |
| 29455 | Ten Grand Energy Company Inc | Nachogdoches, TX 75963-1880 | Oil Operator | Mar 2011 |
| 29456 | Tenaska Marketing Ventures | Omaha, NE 68154 | Oil & Gas Operator | Mar 2021 |
| 29457 | Tenaska Res LLC | Canonsburg, PA 15317 | Gas Operator | May 2020 |
| 29458 | Tend Oil Inc. | Tyler, TX 75703 | Oil & Gas Operator | Jul 1995 |
| 29459 | Tender Equity Corporation | Marietta, OH 45750 | Oil & Gas Operator | Dec 2007 |
| 29460 | Tenex Corporation | Houston, TX 77227 | Oil & Gas Operator | Dec 2007 |
| 29461 | Tenex Oil Corpor | | Oil Operator | May 1991 |
| 29462 | Tenexco Inc | Oakbrook Terrace, IL 60181 | Gas Operator | Dec 1998 |
| 29463 | Tengasco, Inc. | Houston, TX 77063 | Oil & Gas Operator | Apr 2024 |
| 29464 | Tenison Oil Comp | | Oil Operator | Jan 1993 |
| 29465 | Tenison Oil Company | Abilene, TX 79605 | Oil & Gas Operator | Apr 2025 |
| 29466 | Tenk, Lawrence O. | Ottawa, KS 66067 | Oil & Gas Operator | Oct 1998 |
| 29467 | Tenmile Land Limited Liability Company | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2021 |
| 29468 | Tenneco Inc. | | Oil & Gas Operator | Jun 1989 |
| 29469 | Tenneco Oil Comp | | Oil & Gas Operator | Aug 1995 |
| 29470 | Tenneco Oil Company | Oklahoma City, OK 73125 | Oil & Gas Operator | Dec 2024 |
| 29471 | Tenneco Ventures Corporation | | Oil & Gas Operator | Feb 1996 |
| 29472 | Tenneco West, Inc. | | Oil & Gas Operator | Dec 1983 |
| 29473 | Tennessee Gas Pipeline Company | Houston, TX 77252 | Oil & Gas Operator | Dec 2011 |
| 29474 | Tennessee Gas Pipeline Company, LLC | Houston, TX 77252 | Oil Operator | Dec 2024 |
| 29475 | Tennessee Properties, Inc | | Oil Operator | Dec 2014 |
| 29476 | Tennyson Oil & Gas | Muskogee, OK 74401 | Oil Operator | Jan 2025 |
| 29477 | Tenpas, Bruce | Clymer, NY 14724 | Gas Operator | Dec 2023 |
| 29478 | Tensas Delta Expl Co., LLC | Shreveport, LA 71101-5323 | Oil & Gas Operator | Jul 2021 |
| 29479 | Tensas Delta Explo. Co., LLC | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2011 |
| 29480 | Tensas Delta Land Company | | Oil & Gas Operator | Apr 2002 |
| 29481 | Tensas Exploraton & Production Co LLC | | Oil & Gas Operator | Nov 2009 |
| 29482 | Teocali Energy LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2025 |
| 29483 | Teocalli Exploration LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Feb 2025 |
| 29484 | Teon Management, LLC | Midland, TX 79704 | Oil & Gas Operator | Mar 2020 |
| 29485 | Tep Barnett USA, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2025 |
| 29486 | Tepco Resources, Inc. | Houston, TX 77027 | Oil & Gas Operator | Sep 2004 |
| 29487 | Tepco, Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 1999 |
| 29488 | Tepee Petroleum Company, Inc. | Houston, TX 77098 | Oil & Gas Operator | Feb 2014 |
| 29489 | Ter Ex Inc | Butler, PA 16002-8638 | Gas Operator | Dec 1994 |
| 29490 | Terex Energy Corporation | Casper, WY 82602 | Oil & Gas Operator | Aug 2019 |
| 29491 | Terhune Harry C | Bartlesville, OK 74003 | Oil Operator | Feb 1997 |
| 29492 | Terhune Opal S | Bartlesville, OK 74006-0472 | Oil Operator | Nov 2024 |
| 29493 | Term Energy Corp. | Harrisville, WV 26362-0000 | Oil & Gas Operator | Dec 2021 |
| 29494 | Termo Co. Of Texas | | Oil & Gas Operator | Dec 1986 |
| 29495 | Terra Energy Co LLC | | Oil & Gas Operator | Apr 2018 |
| 29496 | Terra Energy LTD | | Oil & Gas Operator | Apr 2018 |
| 29497 | Terra Exploration & Production Co. Inc. | | Oil & Gas Operator | Dec 2009 |
| 29498 | Terra Locus Services | Seguin, TX 78155 | Oil & Gas Operator | Jun 2000 |
| 29499 | Terra Max Energy | | Oil Operator | Mar 1986 |
| 29500 | Terra Production Company | Okemah, OK 74859-5924 | Oil & Gas Operator | Apr 2020 |