| 30401 | Travco Well Servicing LLC | Okmulgee, OK 74447 | Oil Operator | Jan 2025 |
| 30402 | Travelers Oil Company | Amarillo, TX 79102 | Oil & Gas Operator | Apr 2025 |
| 30403 | Travell Energy, Inc | | Oil Operator | Dec 2023 |
| 30404 | Traver Oil & Gas Corporation | | Oil & Gas Operator | Sep 2000 |
| 30405 | Traver Oil Company | | Oil & Gas Operator | Sep 2000 |
| 30406 | Traver-Patterson Petroleum Inc | | Oil & Gas Operator | May 1990 |
| 30407 | Travers Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Apr 2025 |
| 30408 | Traverse Oil Co | | Oil & Gas Operator | Nov 1983 |
| 30409 | Traverse Oil Co And Federal Oil Co | | Oil & Gas Operator | Nov 1983 |
| 30410 | Travis | Houston, TX 77057 | Oil Operator | Apr 2025 |
| 30411 | Travis Coomer DRLG Co | | Oil Operator | Dec 2023 |
| 30412 | Travis E. Duren | | Oil Operator | Jul 1995 |
| 30413 | Travis Oil Co | Los Angeles, CA 90024 | Oil Operator | Jan 1990 |
| 30414 | Travis Operating, LLC | Kingwood, TX 77345 | Oil & Gas Operator | Apr 2025 |
| 30415 | Travis Peak Resources LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 30416 | Travis, J. J., Trustee | Rockport, TX 78382 | Oil & Gas Operator | Dec 1996 |
| 30417 | Traxler, Joyce | Le Roy, NY 14482 | Gas Operator | Dec 2023 |
| 30418 | Traynor Oil & Gas Inc | Claremont, CA 91711-2837 | Oil & Gas Operator | Jan 2024 |
| 30419 | TRC Cypress Group LLC | | Oil & Gas Operator | Dec 2024 |
| 30420 | TRC Operating Company Inc. | | Oil & Gas Operator | Dec 2024 |
| 30421 | Tre'J Exploration, Inc. | | Gas Operator | Dec 1991 |
| 30422 | Treadaway Oil Co. | Balmorhea, TX 79718 | Oil & Gas Operator | Apr 2025 |
| 30423 | Treadstone Energy Partners, LLC | Houston, TX 77070 | Oil & Gas Operator | Jun 2016 |
| 30424 | Treadstone Energy PRTNR Op, LLC | Katy, TX 77494 | Oil & Gas Operator | Apr 2025 |
| 30425 | Treat Howard | Okmulgee, OK 74447 | Oil & Gas Operator | Oct 2014 |
| 30426 | Trebole Operating Company | | Oil Operator | Jul 1979 |
| 30427 | Treco Oil Company | Albany, TX 76430 | Oil & Gas Operator | Apr 2025 |
| 30428 | Tredegar Properties, Inc. | | Oil Operator | Jun 1990 |
| 30429 | Tree Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 30430 | Trees Oil Compan | | Oil Operator | Jan 1995 |
| 30431 | Trejim Operators, LLC | Pampa, TX 79065 | Oil & Gas Operator | Apr 2025 |
| 30432 | Trek Aec, LLC | Wichita, KS 67202 | Oil & Gas Operator | Dec 2024 |
| 30433 | Trek Exploration, Inc. | Amarillo, TX 79109 | Oil & Gas Operator | Apr 2025 |
| 30434 | Trek Oil & Gas, Inc | Houston, TX 77002 | Oil Operator | Mar 1998 |
| 30435 | Trek Operating, LLC | Tulsa, OK 741520098 | Oil & Gas Operator | Mar 2021 |
| 30436 | Trek Petroleum Company, Inc. | Midland, TX 79707 | Oil & Gas Operator | Apr 2025 |
| 30437 | Trek Resources, Inc. | Dallas, TX 75207 | Oil & Gas Operator | Apr 2025 |
| 30438 | Tremo Corporation | Toronto, KS 66777 | Oil Operator | May 1998 |
| 30439 | Tren Energy LLC | El Paso, TX 79912 | Oil Operator | Apr 2025 |
| 30440 | Trenchco Inc | Shawnee, OK 74802-3577 | Oil & Gas Operator | Apr 2015 |
| 30441 | Trend Exploration Company | Midland, TX 79701 | Oil & Gas Operator | Mar 2008 |
| 30442 | Trend Exploration I, LLC | Midland, TX 79701 | Oil & Gas Operator | May 2011 |
| 30443 | Trend Gas & Oil Inc | Jenks, OK 74037 | Oil & Gas Operator | Dec 2000 |
| 30444 | Trend Oil Co | Petaluma, CA 94954 | Oil & Gas Operator | Feb 2017 |
| 30445 | Trend Properties | Olathe, KS 66061 | Gas Operator | Dec 1996 |
| 30446 | Trendsetter Production Co, Inc | | Oil & Gas Operator | Jul 2008 |
| 30447 | Trendwell Energy Corporation | | Oil & Gas Operator | Sep 2024 |
| 30448 | Trenmor Gas & Oil Co LLC | Frazeysburg, OH 43822 | Oil Operator | Dec 2022 |
| 30449 | Trenna Oil Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 2013 |
| 30450 | Trenon Oil & Gas Inc | Oklahoma City, OK 73112-4279 | Oil & Gas Operator | Sep 1996 |
| 30451 | Trepco Production Company, Inc. | Yukon, OK 73099 | Oil & Gas Operator | Jan 2025 |
| 30452 | Trepel Petroleum Exploration & | | Oil & Gas Operator | Apr 2014 |
| 30453 | Tres Azores Oil & Gas, Inc. | Fort Worth, TX 76185 | Oil & Gas Operator | Aug 2003 |
| 30454 | Tres Operating Co., LLC | Katy, TX 77494 | Oil Operator | Apr 2025 |
| 30455 | Tres Piedras, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 1999 |
| 30456 | Tres Roughneckas WTX LLC | Houston, TX 77009 | Oil Operator | Apr 2025 |
| 30457 | Tresami, Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2025 |
| 30458 | Tresco Energy LLC | Enid, OK 73703-3002 | Oil & Gas Operator | Jan 2025 |
| 30459 | Tresor Petroleum | | Oil & Gas Operator | Sep 1987 |
| 30460 | Tressler John R & IVa M | | Oil Operator | Apr 1989 |
| 30461 | Trestle Creek Properties, LLC | Manchaca, TX 78652 | Oil & Gas Operator | Apr 2025 |
| 30462 | Trey Exploration, Inc. | San Angelo, TX 76901 | Oil & Gas Operator | Dec 2020 |
| 30463 | Trey Operating Company | MC Camey, TX 79752 | Oil Operator | Jan 2016 |
| 30464 | Trey Resources Inc. | Midland, TX 79710 | Oil & Gas Operator | Jan 2025 |
| 30465 | Trey Services, Inc. | Midland, TX 79711 | Oil & Gas Operator | Dec 1996 |
| 30466 | Tri "M" Oil & Gas | Muenster, TX 76252 | Oil & Gas Operator | Apr 2025 |
| 30467 | Tri City Oil Co., LLC | Kountze, TX 77625 | Oil Operator | Apr 2025 |
| 30468 | Tri Energy Resources, Inc. | Norman, OK 73070 | Oil Operator | Apr 2025 |
| 30469 | Tri Family Oil Co | | Oil Operator | Dec 2023 |
| 30470 | Tri Investment Company | | Oil Operator | Mar 1980 |
| 30471 | Tri Production Inc | Healdton, OK 73438 | Oil & Gas Operator | Jan 2025 |
| 30472 | Tri Sportsmen Energy, Inc. | Austin, TX 78746 | Oil & Gas Operator | Apr 2025 |
| 30473 | Tri Star Operating, Inc. | Arlington, TX 76012 | Oil & Gas Operator | Jan 2002 |
| 30474 | Tri United, Inc | Hays, KS 67601 | Oil Operator | Dec 2024 |
| 30475 | Tri-Am Operating Company | Frankston, TX 75763 | Oil & Gas Operator | Apr 2025 |
| 30476 | Tri-C Resources, Inc. | Houston, TX 77024 | Oil & Gas Operator | Aug 2009 |
| 30477 | Tri-C Resources, LLC | Houston, TX 77024 | Oil & Gas Operator | Apr 2025 |
| 30478 | Tri-City Drilling Joint Venture | Belpre, OH 45714 | Oil & Gas Operator | Dec 2024 |
| 30479 | Tri-City Energy Inc | Wilson, OK 73463-0196 | Oil Operator | Mar 2014 |
| 30480 | Tri-County Oil & Gas, Inc. | Fairmont, WV 26555-0000 | Oil & Gas Operator | Dec 2019 |
| 30481 | Tri-County Operating Company | Seguin, TX 78156 | Gas Operator | Feb 1997 |
| 30482 | Tri-Crude Oil & Gas | Harrisville, WV 26362-0000 | Oil & Gas Operator | Dec 2021 |
| 30483 | Tri-Dyne Resources, Inc. | Southern Pine, NC 28387 | Oil & Gas Operator | Feb 2000 |
| 30484 | Tri-Ex Corporation | | Oil & Gas Operator | Jan 1985 |
| 30485 | Tri-Ex Petroleum, L.P. | Amarillo, TX 79101 | Oil & Gas Operator | Jan 2013 |
| 30486 | Tri-Force Operating, L.L.C. | Royse City, TX 75189 | Oil & Gas Operator | Apr 2025 |
| 30487 | Tri-J Tubulars, Inc. | Wichita, KS 67202 | Oil Operator | Aug 1996 |
| 30488 | Tri-K Production Company, Inc. | Olney, TX 76374 | Oil & Gas Operator | Apr 1996 |
| 30489 | Tri-L Oil Co. | | Oil Operator | Sep 2015 |
| 30490 | Tri-Par Exploration, Inc. | | Oil Operator | Oct 2001 |
| 30491 | Tri-Production Company | | Oil Operator | Apr 1994 |
| 30492 | Tri-Quest Resources | | Oil & Gas Operator | Feb 1995 |
| 30493 | Tri-State Exploration & Prod Inc | Marshall, TX 75671 | Oil & Gas Operator | Aug 2003 |
| 30494 | Tri-State Pipeline Service Inc | Ninnekah, OK 73067-0189 | Oil & Gas Operator | Mar 2011 |
| 30495 | Tri-State Resources, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Sep 2012 |
| 30496 | Tri-State Sales & Production | Rodessa, LA 71069 | Oil & Gas Operator | Dec 2008 |
| 30497 | Tri-Tex Exploration LTD | Abilene, TX 79608 | Oil Operator | Apr 2019 |
| 30498 | Tri-Union Development Corp. | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 30499 | Tri-Unity Inc | Sand Springs, OK 74063-4401 | Oil & Gas Operator | Jun 2009 |
| 30500 | Tri-Valley Oil & Gas Co. | | Oil & Gas Operator | Dec 2024 |