| 29401 | Turrentine Oil And Gas | Levelland, TX 79336 | Oil & Gas Operator | Feb 1996 |
| 29402 | Turtle Mountain Gas & Oil, Inc. | | Oil & Gas Operator | Oct 2006 |
| 29403 | Tuscany Deli & Meats, Inc. | Fredonia, NY 14063 | Gas Operator | Dec 2022 |
| 29404 | Tuscany Gas Limited Liability Company | | Gas Operator | Dec 2021 |
| 29405 | Tuscany Operating LLC | Oklahoma City, OK 73106 | Oil & Gas Operator | Sep 2014 |
| 29406 | Tuscola Energy Inc | | Oil & Gas Operator | Mar 2024 |
| 29407 | Tuskar (Texas), Inc. | Oklahoma City, OK 73116 | Oil & Gas Operator | Jan 2016 |
| 29408 | Tussel Clarence Jr | Jefferson, OH 44047 | Oil & Gas Operator | Dec 2019 |
| 29409 | Tutcher, Dan C. | Houston, TX 77002 | Oil Operator | Dec 2004 |
| 29410 | Tuthill & Barbee | Amarillo, TX 79101 | Oil & Gas Operator | Nov 1994 |
| 29411 | Tuthill S Keith & Bill Barbee | Amarillo, TX 79101-1427 | Oil & Gas Operator | Dec 2004 |
| 29412 | Tuway Oil, Inc | | Oil & Gas Operator | Jun 2006 |
| 29413 | TW Phillips Gas Supply Corp | Butler, PA 16001-4904 | Oil & Gas Operator | Dec 2011 |
| 29414 | TWC Oil Company | | Oil Operator | Jan 2024 |
| 29415 | TWCS Operating Co., LLC | MC Gregor, TX 76657 | Oil Operator | May 2024 |
| 29416 | Twenty First Century Res Inc | Lajolla, CA 92037-7044 | Oil & Gas Operator | Mar 2015 |
| 29417 | Twenty/Twenty Oil & Gas Inc | Hennessey, OK 73742-0247 | Oil & Gas Operator | Feb 2024 |
| 29418 | Twilco Operating LLC | Holliday, TX 76366 | Oil Operator | May 2024 |
| 29419 | Twilight Energy LLC | Fort Worth, TX 76185 | Oil & Gas Operator | May 2024 |
| 29420 | Twin Arrow Inc | Rangely, CO 81648 | Oil & Gas Operator | Sep 2009 |
| 29421 | Twin City Gas | | Gas Operator | Nov 1997 |
| 29422 | Twin Eagle Petro | | Oil Operator | Aug 1990 |
| 29423 | Twin Eagle Petroleum Corp | Tulsa, OK 74136 | Oil & Gas Operator | Jun 2002 |
| 29424 | Twin M, Inc. | Kingman, KS 67068 | Oil & Gas Operator | Jan 2024 |
| 29425 | Twin Oaks Construction Company | Irving, TX 75063 | Oil & Gas Operator | May 2024 |
| 29426 | Twin Oil Partnership LLC | | Oil Operator | Dec 2023 |
| 29427 | Twin Star Petrol | | Oil & Gas Operator | Jan 1989 |
| 29428 | Twiner Oil & Gas Corporation | | Oil & Gas Operator | Oct 1988 |
| 29429 | Twinoaks Oil & Gas Co | Newark, OH 43058-0764-0764 | Oil & Gas Operator | Dec 2023 |
| 29430 | Twinoco | Caney, KS 67333 | Oil Operator | Nov 1996 |
| 29431 | Twins Oil Co. | Monahans, TX 79756 | Oil & Gas Operator | May 2024 |
| 29432 | Twisted Oak Operating LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2024 |
| 29433 | Twisted Resources Inc | | Oil & Gas Operator | Feb 2024 |
| 29434 | TWM Production Co., A General Partnership | Chanute, KS 66720 | Oil Operator | Dec 2023 |
| 29435 | Two Bay Petroleum | | Oil & Gas Operator | Dec 2010 |
| 29436 | Two Bayous, Inc. | | Oil & Gas Operator | Nov 2023 |
| 29437 | Two Bit Operating Company LLC | Fort Worth, TX 76110 | Oil & Gas Operator | May 2024 |
| 29438 | Two Black Bears Oil, Inc. | Midland, TX 79710 | Oil & Gas Operator | Sep 2003 |
| 29439 | Two Gems Company | McAlester, OK 74502-1996 | Oil & Gas Operator | Jan 2024 |
| 29440 | Two Oaks Operating Company, LLC. | Flower Mound, TX 75028 | Oil & Gas Operator | Mar 2008 |
| 29441 | Two P Partners, LLC | Golden, CO 80401 | Oil & Gas Operator | May 2024 |
| 29442 | Two Pines | Drumright, OK 74030-5502 | Oil & Gas Operator | Feb 2012 |
| 29443 | Twojo, Inc. | Longview, TX 75601 | Oil & Gas Operator | Nov 1996 |
| 29444 | TX Heat Of The Permian Basin Inc | Odessa, TX 79768 | Oil & Gas Operator | Dec 2021 |
| 29445 | TX Lone Star Operating Co, LLC | Sulphur SPGS, TX 75483 | Oil & Gas Operator | May 2024 |
| 29446 | TX Petroleum Company | Corpus Chrsti, TX 78412 | Oil & Gas Operator | Apr 1996 |
| 29447 | Txco Resources Inc. | San Antonio, TX 78280 | Oil & Gas Operator | May 2024 |
| 29448 | Txla Energy, Inc. | Houston, TX 77018 | Oil & Gas Operator | May 2024 |
| 29449 | Txo Prod Corp.-Arkla Expl. Co. | | Oil & Gas Operator | Dec 1990 |
| 29450 | Txo Production Corp. | Ganado, TX 77962 | Oil & Gas Operator | Aug 2022 |
| 29451 | Txo Production Corp/Amh O&G Co | | Oil & Gas Operator | Dec 1990 |
| 29452 | Txok Energy Resources Company | Tulsa, OK 74172-0140 | Oil & Gas Operator | Feb 2017 |
| 29453 | Txok Texas Energy Resources,L.P. | Dallas, TX 75251 | Oil & Gas Operator | Apr 2008 |
| 29454 | Txon Partners, LLC | Houston, TX 77057 | Oil & Gas Operator | Jun 2017 |
| 29455 | TXP Operating Company | | Oil & Gas Operator | Jul 1992 |
| 29456 | TXP, Incorporated | San Angelo, TX 76906 | Oil & Gas Operator | May 2024 |
| 29457 | Txu Fuel Company | Dallas, TX 75201 | Oil & Gas Operator | May 2004 |
| 29458 | Txu Gas Company | Dallas, TX 75201 | Oil & Gas Operator | Sep 2004 |
| 29459 | Txu Lone Star Pipeline | Dallas, TX 75201 | Oil & Gas Operator | Oct 2003 |
| 29460 | TXX Operating LLC | Shreveport, LA 71133 | Oil & Gas Operator | May 2024 |
| 29461 | Ty-Tex Exploration, Inc. | Tyler, TX 75711 | Oil Operator | Dec 2000 |
| 29462 | Tyco Incorporate | | Oil & Gas Operator | Oct 1995 |
| 29463 | Tyco Oil Co. | | Oil Operator | Jan 2024 |
| 29464 | Tyco Operating Co. | Throckmorton, TX 76483 | Oil & Gas Operator | May 2024 |
| 29465 | Tygr Operating Company, LLC | | Oil & Gas Operator | Nov 2023 |
| 29466 | Tyl Oil | Canon City, CO 81212 | Gas Operator | May 1994 |
| 29467 | Tyler Enterprises Inc | Bristow, OK 74010-3192 | Oil & Gas Operator | Feb 2004 |
| 29468 | Tyler Oil & Gas Inc. | Tyler, TX 75702 | Oil & Gas Operator | Sep 2004 |
| 29469 | Tyler Oil Company | Billings, MT 59104-3203 | Oil & Gas Operator | Nov 2019 |
| 29470 | Tyler Production, LLC | | Oil & Gas Operator | Jul 2013 |
| 29471 | Tyler Rockies Exploration LTD | Tyler, TX 75710-0119 | Oil & Gas Operator | Mar 2024 |
| 29472 | Tyluka Operations, LLC | Hays, KS 67601 | Oil Operator | Nov 2023 |
| 29473 | Tyner Texas Operating Company | Dallas, TX 75248 | Oil & Gas Operator | May 2024 |
| 29474 | Tyrex Oil Company | Casper, WY 82602 | Oil & Gas Operator | May 1997 |
| 29475 | Tyro Oil Develop | | Oil Operator | Jul 1991 |
| 29476 | Tyrok | | Oil & Gas Operator | Nov 2010 |
| 29477 | Tysco Oil And Gas Corp. | | Oil & Gas Operator | Jan 2024 |
| 29478 | Tyson Gary | Hobart, OK 73651-6413 | Oil & Gas Operator | Mar 2018 |
| 29479 | Tyson Oil Co. | | Oil Operator | Jan 2024 |
| 29480 | Tyson Olan | Hobart, OK 73651-6413 | Oil & Gas Operator | Apr 2015 |
| 29481 | U Bee Tea Production LLC | Culbertson, MT 59218 | Oil & Gas Operator | Feb 2024 |
| 29482 | U R C C | | Oil & Gas Operator | Jun 1991 |
| 29483 | U S Department Of Energy | | Oil & Gas Operator | Apr 1999 |
| 29484 | U S Drilling Company Inc | Holdenville, OK 74848 | Oil & Gas Operator | Mar 2017 |
| 29485 | U S Energy Corp. Of Amer. Inc. | Ranger, TX 76470 | Oil & Gas Operator | May 2024 |
| 29486 | U S Exploraton Liq Trust | | Oil & Gas Operator | Oct 1994 |
| 29487 | U S Liquids Of La., L.P. | | Oil Operator | Apr 2014 |
| 29488 | U S Oil Reclaimers LLC | Drumright, OK 74030-1155 | Oil Operator | Jun 2023 |
| 29489 | U V Industries | | Oil & Gas Operator | Jan 1993 |
| 29490 | U-N-I Exploration & Development, Inc. | Yates Center, KS 66783 | Oil & Gas Operator | Jan 2003 |
| 29491 | U. D. Man, Inc. | San Antonio, TX 78212 | Oil & Gas Operator | May 2024 |
| 29492 | U. O. C., Inc. | | Oil Operator | Jun 2019 |
| 29493 | U. S. Operating, Inc. | Dallas, TX 75252 | Oil & Gas Operator | May 2024 |
| 29494 | U.S. Capital Corp Of Am, Inc. | | Oil & Gas Operator | Aug 1998 |
| 29495 | U.S. Enercorp, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Jul 2004 |
| 29496 | U.S. Enercorp, LTD. | San Antonio, TX 78209 | Oil & Gas Operator | Sep 2019 |
| 29497 | U.S. Energy Development Corp | Arlington, TX 76011 | Oil & Gas Operator | May 2024 |
| 29498 | U.S. Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Aug 2003 |
| 29499 | U.S. Sovereign Oil And Gas, Inc. | Dallas, TX 75355 | Oil & Gas Operator | May 2024 |
| 29500 | U.S. Steel Mining Co., Inc. | | Gas Operator | Jan 2000 |