| 28201 | TB Petroleum, LLC | Petrolia, TX 76377 | Oil & Gas Operator | Jun 2026 |
| 28202 | TB Properties | | Oil & Gas Operator | Dec 2025 |
| 28203 | TBC Petroleum | Cuero, TX 77954 | Oil & Gas Operator | Sep 2023 |
| 28204 | Tbi Exploration Inc | Englewood, CO 801556525 | Oil & Gas Operator | Jun 2011 |
| 28205 | TBM Catarina, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2026 |
| 28206 | TBR Operating Company Inc. | | Gas Operator | Dec 2024 |
| 28207 | TC Energy LLC | Covington, OK 73730-2116 | Oil & Gas Operator | Sep 2014 |
| 28208 | TC Oil And Gas, LLC | Denton, TX 76205 | Oil Operator | Jun 2026 |
| 28209 | TC Oil LLC | Duncan, OK 73533 | Oil Operator | Mar 2026 |
| 28210 | TC3 Energy Company | Dallas, TX 75248 | Oil & Gas Operator | Jun 2026 |
| 28211 | TC3 Energy Services Company | Bryan, TX 77805 | Oil & Gas Operator | Jan 2005 |
| 28212 | TC3 Operating Company | Dallas, TX 75248 | Oil & Gas Operator | Jul 1996 |
| 28213 | TCC Royalty Corporation | Centennial, CO 80112 | Gas Operator | Sep 2005 |
| 28214 | TCF Energy, Inc. | Midland, TX 79704 | Oil & Gas Operator | Dec 2004 |
| 28215 | TCF Inc | | Gas Operator | Dec 1993 |
| 28216 | Tchefuncte Natural Resources, L.L.C. | | Oil & Gas Operator | Aug 2011 |
| 28217 | Tcina Inc | Seminole, OK 74868 | Oil & Gas Operator | May 2023 |
| 28218 | TCRG Drilling & Operating, LLC | Fort Worth, TX 76107 | Oil Operator | Jun 2026 |
| 28219 | TCS Petroleum Co., LLC | Abilene, TX 79608 | Oil & Gas Operator | Jun 2026 |
| 28220 | TCT Operating Company, Inc. | Johnson City, TX 78636 | Oil & Gas Operator | Feb 2017 |
| 28221 | TD & Associates, Inc. | | Oil & Gas Operator | Jun 1998 |
| 28222 | TD Natural Resources LLC | Cuero, TX 77954 | Oil & Gas Operator | Jun 2026 |
| 28223 | TD Oil & Gas LLC | Duncan, OK 73533-1851 | Oil Operator | Apr 2023 |
| 28224 | TD Operating Inc | Hinton, OK 73047 | Oil & Gas Operator | Mar 2026 |
| 28225 | TDC Energy Corporation | | Oil & Gas Operator | Dec 2001 |
| 28226 | TDC Engineering, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Jun 2026 |
| 28227 | Tdi, Inc. | Hays, KS 67601 | Oil Operator | Feb 2026 |
| 28228 | Tdoc, Inc | Evansville, IN 47716 | Oil Operator | Dec 2022 |
| 28229 | Tdot Oil, Inc. | Sedan, KS 67361 | Oil Operator | Feb 2026 |
| 28230 | TDR Construction, Inc. | Wellsville, KS 66092 | Oil Operator | Feb 2026 |
| 28231 | TDT Production, Inc. | Capitola, CA 95010 | Oil & Gas Operator | Aug 2003 |
| 28232 | TDX Energy, LLC | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2024 |
| 28233 | Te-Pe Oil & Gas | | Oil & Gas Operator | Feb 2026 |
| 28234 | Te-Ray Energy Inc | Oklahoma City, OK 73108 | Oil & Gas Operator | Feb 2026 |
| 28235 | Te-Ray Resources, Inc. | Oklahoma City, OK 73108 | Oil & Gas Operator | Mar 2015 |
| 28236 | Te-Ray Resources, LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Jun 2026 |
| 28237 | Teaco | Snyder, TX 79550 | Oil & Gas Operator | Jan 1998 |
| 28238 | Teafatiller Limuel & Rita | Marietta, OK 73448-0321 | Oil & Gas Operator | Feb 2002 |
| 28239 | Teagarden David W | Glenford, OH 43739 | Oil & Gas Operator | Dec 2020 |
| 28240 | Teague Operating Co. | Mabank, TX 75147 | Oil & Gas Operator | Jul 1995 |
| 28241 | Teague, J. V. & Robinson, E. W. | Olney, TX 76374 | Oil & Gas Operator | May 1996 |
| 28242 | Teakwood Operating LLC | Midland, TX 79701 | Oil & Gas Operator | Nov 2019 |
| 28243 | Teal Energy USA, Inc. | Houston, TX 77057 | Oil & Gas Operator | Jun 2026 |
| 28244 | Teal Exploration, LLC | Abilene, TX 79602 | Oil Operator | Jun 2026 |
| 28245 | Teal Operating, LLC | Dallas, TX 75225 | Oil & Gas Operator | Oct 2021 |
| 28246 | Teal Petroleum Co. | | Oil & Gas Operator | Sep 1978 |
| 28247 | Teale F William | Tulsa, OK 74136-1017 | Oil & Gas Operator | Jun 2000 |
| 28248 | Team Operating, L.L.C. | Pinehurst, TX 77362 | Oil & Gas Operator | Jun 2026 |
| 28249 | Teamco Operating LLC | Houston, TX 77042 | Oil & Gas Operator | Oct 2002 |
| 28250 | Teapot Oil & Refining Company | Billings, MT 59101 | Oil & Gas Operator | Mar 2012 |
| 28251 | Teavee Oil & Gas, Inc. | Charleston, WV 25301-0000 | Oil & Gas Operator | Dec 2021 |
| 28252 | Tebco Oil & Gas | | Oil & Gas Operator | Sep 1996 |
| 28253 | Tec Drilling Com | | Oil Operator | Feb 1982 |
| 28254 | Tec Resources LLC | Tulsa, OK 74128 | Oil & Gas Operator | May 2013 |
| 28255 | Tech American Re | | Oil Operator | Sep 1985 |
| 28256 | Tech Resources, Inc. | Georgetown, TX 78628 | Oil & Gas Operator | Dec 2001 |
| 28257 | Technical Energy Services, Inc. | Norman, OK 73070 | Oil & Gas Operator | Feb 2026 |
| 28258 | Technology & Engr. Careers Inc. | Houston, TX 77063 | Oil Operator | Dec 2017 |
| 28259 | Techsys Resources LLC | Houston, TX 77224 | Gas Operator | Aug 2015 |
| 28260 | Teco Oil & Gas, Inc. | Tampa, FL 33601 | Oil & Gas Operator | Nov 1997 |
| 28261 | Teco Operating Company | Athens, TX 75751 | Oil & Gas Operator | Jun 2001 |
| 28262 | Tecolote Energy Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Jan 2024 |
| 28263 | Tecolote Petroleum Corp.,Inc. | Friendswood, TX 77546 | Oil & Gas Operator | Mar 2011 |
| 28264 | Tecpetrol Operating LLC | Houston, TX 77027 | Oil & Gas Operator | Dec 2015 |
| 28265 | Tecton Energy Operating LLC | | Oil Operator | Apr 2009 |
| 28266 | Ted Koble Operator | | Oil & Gas Operator | Nov 2007 |
| 28267 | Tedco | | Gas Operator | Nov 1988 |
| 28268 | Tee Cee'S Inc | Drumright, OK 74030 | Oil & Gas Operator | Mar 2026 |
| 28269 | Tee Operating Company | | Oil & Gas Operator | Jun 1989 |
| 28270 | Teel 78 A | | Gas Operator | Dec 1980 |
| 28271 | Teepee Oil & Gas Inc | Yukon, OK 73085 | Oil Operator | Dec 2006 |
| 28272 | Teg Midcontinent, Inc. | Aurora, CO 80014 | Oil Operator | Jul 2013 |
| 28273 | Tega Operating Co. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2012 |
| 28274 | Tehi Illinois, LLC | Olney, IL 62450 | Oil & Gas Operator | Feb 2019 |
| 28275 | Teichgraeber Oil | | Oil Operator | Nov 1995 |
| 28276 | Teichgraeber Oil Co. | | Oil Operator | Dec 1994 |
| 28277 | Teichgraeber Oil, Inc. | Eureka, KS 67045 | Oil & Gas Operator | Dec 2024 |
| 28278 | Tej Ventures | | Oil & Gas Operator | Dec 2002 |
| 28279 | Tejas Gas Pipeline Company | Houston, TX 77010 | Oil & Gas Operator | Apr 1998 |
| 28280 | Tejas Gas Pipeline, L.P. | Houston, TX 77002 | Oil & Gas Operator | Feb 2002 |
| 28281 | Tejas Jack Sales, Inc. | Big Lake, TX 76932 | Oil & Gas Operator | Jun 2026 |
| 28282 | Tejas Operating Company, Inc. | Houston, TX 77257 | Oil & Gas Operator | May 1995 |
| 28283 | Tejas Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Jun 2026 |
| 28284 | Tejas Operators, Inc. | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 28285 | Tejas Permian Operating, LLC | Midland, TX 79702 | Oil & Gas Operator | Jun 2026 |
| 28286 | Tejas Petroleum Resources, LLC | Aubrey, TX 76227 | Oil & Gas Operator | Jun 2026 |
| 28287 | Tejas Production Company | | Oil Operator | Nov 1979 |
| 28288 | Tejas Trucking, Inc. | Andrews, TX 79714 | Oil & Gas Operator | Jun 2026 |
| 28289 | Tejas Western Corp. | Granbury, TX 76048 | Oil & Gas Operator | Jul 2018 |
| 28290 | Tejones Operating Corporation | San Antonio, TX 78217 | Oil & Gas Operator | Jun 2026 |
| 28291 | Teke Production LLC | Houston, TX 77269 | Oil Operator | Jun 2026 |
| 28292 | Tekenergy Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 28293 | Tekna Synergy Corporation | Midland, TX 79702 | Oil & Gas Operator | Jun 2026 |
| 28294 | Teko Oil & Gas I | | Oil Operator | Aug 1992 |
| 28295 | Teleo Operating, LLC | Dallas, TX 75219 | Oil & Gas Operator | Apr 2009 |
| 28296 | Telesis Operating Co. | Fort Worth, TX 76116 | Oil & Gas Operator | Jun 2026 |
| 28297 | Telico Minerals, L.L.C. | | Oil & Gas Operator | Oct 2019 |
| 28298 | Tellurian Operating LLC | | Oil & Gas Operator | Jun 2024 |
| 28299 | Tellus Energy, LLC | | Oil & Gas Operator | Dec 2024 |
| 28300 | Tellus Operating Group, LLC | | Oil & Gas Operator | Mar 2026 |