| 29401 | Trenchco Inc | Shawnee, OK 74802-3577 | Oil & Gas Operator | Apr 2015 |
| 29402 | Trend Exploration Company | Midland, TX 79701 | Oil & Gas Operator | Mar 2008 |
| 29403 | Trend Exploration I LLC | Midland, TX 79701 | Oil & Gas Operator | May 2011 |
| 29404 | Trend Gas & Oil Inc | Jenks, OK 74037 | Oil & Gas Operator | Dec 2000 |
| 29405 | Trend Oil Co | Petaluma, CA 94954 | Oil & Gas Operator | Feb 2017 |
| 29406 | Trendsetter Production Co | | Oil & Gas Operator | Jul 2008 |
| 29407 | Trendwell Energy Corporation | | Oil & Gas Operator | Jun 2026 |
| 29408 | Trenmor Gas & Oil Co LLC | Frazeysburg, OH 43822 | Oil Operator | Dec 2025 |
| 29409 | Trenna Oil Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 2013 |
| 29410 | Trenon Oil & Gas Inc | Oklahoma City, OK 73112-4279 | Oil & Gas Operator | Sep 1996 |
| 29411 | Trepco Production Company Inc | Yukon, OK 73099 | Oil & Gas Operator | Jul 2026 |
| 29412 | Trepel Petroleum Exploration & | | Oil & Gas Operator | Apr 2014 |
| 29413 | Tres Azores Oil & Gas, Inc. | Fort Worth, TX 76185 | Oil & Gas Operator | Aug 2003 |
| 29414 | Tres Operating Co., LLC | Katy, TX 77494 | Oil Operator | Sep 2026 |
| 29415 | Tres Piedras, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 1999 |
| 29416 | Tres Roughneckas WTX LLC | MC Camey, TX 79752 | Oil Operator | Sep 2026 |
| 29417 | Tresami, Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2026 |
| 29418 | Tresco Energy LLC | Enid, OK 73703-3002 | Oil & Gas Operator | Jun 2026 |
| 29419 | Tresor Petroleum | | Oil & Gas Operator | Sep 1987 |
| 29420 | Tressler John R & IVa M | | Oil Operator | Apr 1989 |
| 29421 | Trestle Creek Properties, LLC | Manchaca, TX 78652 | Oil & Gas Operator | Sep 2026 |
| 29422 | Trey Exploration, Inc. | San Angelo, TX 76901 | Oil & Gas Operator | Dec 2019 |
| 29423 | Trey Operating Company | MC Camey, TX 79752 | Oil Operator | Jan 2016 |
| 29424 | Trey Resources Inc. | Midland, TX 79710 | Oil & Gas Operator | Jun 2026 |
| 29425 | Trey Services, Inc. | Midland, TX 79711 | Oil & Gas Operator | Dec 1996 |
| 29426 | Tri "M" Oil & Gas | Muenster, TX 76252 | Oil & Gas Operator | Sep 2026 |
| 29427 | Tri City Oil Co., LLC | Winnie, TX 77665 | Oil Operator | Sep 2026 |
| 29428 | Tri Energy Resources, Inc. | Norman, OK 73070 | Oil Operator | Sep 2026 |
| 29429 | Tri Family Oil Co | | Oil Operator | Dec 2025 |
| 29430 | Tri Investment Company | | Oil Operator | Mar 1980 |
| 29431 | Tri Production Inc | Healdton, OK 73438 | Oil & Gas Operator | Jul 2026 |
| 29432 | Tri Sportsmen Energy, Inc. | Austin, TX 78746 | Oil & Gas Operator | Sep 2026 |
| 29433 | Tri Star Operating, Inc. | Arlington, TX 76012 | Oil & Gas Operator | Jan 2002 |
| 29434 | Tri United, Inc | Hays, KS 67601 | Oil Operator | May 2026 |
| 29435 | Tri-Am Operating Company | Frankston, TX 75763 | Oil & Gas Operator | Sep 2026 |
| 29436 | Tri-C Resources Partners I, LLC | Houston, TX 77024 | Oil & Gas Operator | Sep 2026 |
| 29437 | Tri-C Resources, Inc. | Houston, TX 77024 | Oil & Gas Operator | Aug 2009 |
| 29438 | Tri-C Resources, LLC | Houston, TX 77024 | Oil & Gas Operator | Sep 2026 |
| 29439 | Tri-City Drilling Joint Venture | Belpre, OH 45714 | Oil & Gas Operator | Dec 2024 |
| 29440 | Tri-City Energy Inc | Wilson, OK 73463-0196 | Oil Operator | Mar 2014 |
| 29441 | Tri-County Oil & Gas, Inc. | Fairmont, WV 265550000 | Oil & Gas Operator | Dec 2019 |
| 29442 | Tri-County Operating Company | Seguin, TX 78156 | Gas Operator | Feb 1997 |
| 29443 | Tri-Dyne Resources, Inc. | Southern Pine, NC 28387 | Oil & Gas Operator | Feb 2000 |
| 29444 | Tri-Ex Corporation | | Oil & Gas Operator | Jan 1985 |
| 29445 | Tri-Ex Petroleum, L.P. | Amarillo, TX 79101 | Oil & Gas Operator | Jan 2013 |
| 29446 | Tri-Force Operating, L.L.C. | Royse City, TX 75189 | Oil & Gas Operator | Sep 2026 |
| 29447 | Tri-J Tubulars, Inc. | Wichita, KS 67202 | Oil Operator | Aug 1996 |
| 29448 | Tri-K Production Company, Inc. | Olney, TX 76374 | Oil & Gas Operator | Apr 1996 |
| 29449 | Tri-L Oil Co. | | Oil Operator | Sep 2015 |
| 29450 | Tri-Par Exploration, Inc. | | Oil Operator | Oct 2001 |
| 29451 | Tri-Production Company | | Oil Operator | Apr 1994 |
| 29452 | Tri-Quest Resources | | Oil & Gas Operator | Feb 1995 |
| 29453 | Tri-State Exploration & Prod Inc | Marshall, TX 75671 | Oil & Gas Operator | Aug 2003 |
| 29454 | Tri-State Pipeline Service Inc | Ninnekah, OK 73067-0189 | Oil & Gas Operator | Mar 2011 |
| 29455 | Tri-State Resources, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Sep 2012 |
| 29456 | Tri-State Sales & Production | Rodessa, LA 71069 | Oil & Gas Operator | Dec 2008 |
| 29457 | Tri-Tex Exploration LTD | Abilene, TX 79608 | Oil Operator | Apr 2019 |
| 29458 | Tri-Union Development Corp. | Houston, TX 77002 | Oil & Gas Operator | Sep 2026 |
| 29459 | Tri-Unity Inc | Sand Springs, OK 74063-4401 | Oil & Gas Operator | Jun 2009 |
| 29460 | Tri-Valley Oil & Gas Co. | | Oil & Gas Operator | Dec 2025 |
| 29461 | Tri-W Oil | Luling, TX 78648 | Oil Operator | Sep 2026 |
| 29462 | Tri-W Oil, Inc. | Luling, TX 78648 | Oil Operator | Apr 2007 |
| 29463 | Triad Energy Corp Of Texas | Houston, TX 77057-2696 | Oil & Gas Operator | Sep 2014 |
| 29464 | Triad Energy Corporation | Houston, TX 77057 | Oil & Gas Operator | Oct 2011 |
| 29465 | Triad Energy, Inc. | Oklahoma City, OK 73105-1401 | Oil & Gas Operator | Jul 2026 |
| 29466 | Triad Hunter, LLC | Spring, TX 77389 | Oil & Gas Operator | Dec 2021 |
| 29467 | Triad O&G, LLC | Dallas, TX 75225 | Oil & Gas Operator | Sep 2026 |
| 29468 | Triad Oil & Gas Co Inc | | Oil & Gas Operator | Jun 1994 |
| 29469 | Triad Resources Inc | Spring, TX 77389 | Oil & Gas Operator | Dec 2020 |
| 29470 | Triag Energy Operating, Inc. | Midland, TX 79701 | Oil & Gas Operator | Jun 2014 |
| 29471 | Triana Energy LLC | Charleston, WV 25301-2815 | Gas Operator | Nov 2018 |
| 29472 | Triangle Development Co | Mahtomedi, MN 55115 | Gas Operator | Feb 1982 |
| 29473 | Triangle Energy Co. | Pampa, TX 79066 | Oil & Gas Operator | Nov 2000 |
| 29474 | Triangle Interprises Inc | Justin, TX 76247-0598 | Oil & Gas Operator | Jun 2015 |
| 29475 | Triangle J Oil Company | | Oil & Gas Operator | Mar 2007 |
| 29476 | Triangle Oil & G G Cornwell | | Oil & Gas Operator | Nov 1981 |
| 29477 | Triangle Oil Of Hosston | | Oil Operator | Jul 2014 |
| 29478 | Triangle Oil Producers Inc | | Oil & Gas Operator | Jun 1998 |
| 29479 | Triangle Operating Co., Inc. | | Gas Operator | Jan 2000 |
| 29480 | Triangle P Development Corp. | Bronte, TX 76933 | Oil & Gas Operator | Sep 2026 |
| 29481 | Triangle Three Resources L.L.C. | Dallas, TX 75248 | Oil & Gas Operator | Sep 2026 |
| 29482 | Triangle USA Petroleum Corporation | Denver, CO 80202 | Oil & Gas Operator | Jul 2021 |
| 29483 | Triax Energy LLC | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2018 |
| 29484 | Tribal Oil Company | | Oil & Gas Operator | Dec 1981 |
| 29485 | Tribar Resources LLC | | Oil & Gas Operator | Jul 2026 |
| 29486 | Tribune Resources, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2021 |
| 29487 | Tricentrol Resources Inc | Englewood, CO 80111 | Oil & Gas Operator | Jun 1984 |
| 29488 | Trich Production, Inc. | Longview, TX 75606 | Oil & Gas Operator | Jan 2025 |
| 29489 | Trichel Contracting Company | | Oil & Gas Operator | Sep 1987 |
| 29490 | Trickle Down Oil, Inc. | | Oil & Gas Operator | Feb 2016 |
| 29491 | Trico Energy Corporation | | Oil Operator | May 1984 |
| 29492 | Trico Energy LLC | Hager Hill, KY 41222 | Oil Operator | Dec 2018 |
| 29493 | Trico Oil & Gas Inc. | Kilgore, TX 75662 | Oil & Gas Operator | Sep 2026 |
| 29494 | Trico/Tiger Development LLC | | Oil & Gas Operator | Dec 2020 |
| 29495 | Trident Corporation | Woodsboro, TX 78393 | Oil & Gas Operator | Sep 2026 |
| 29496 | Trident Oil & Gas Corp. | | Oil & Gas Operator | Sep 2000 |
| 29497 | Tridon Oil Inc | Lafayette, LA 70505-2305 | Gas Operator | Dec 2013 |
| 29498 | Triesco, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jun 1996 |
| 29499 | Triexco Inc | Tulsa, OK 74119 | Oil & Gas Operator | Dec 2012 |
| 29500 | Triforce Energy LLC | Littleton, CO 80122 | Oil & Gas Operator | Sep 2026 |