| 28201 | T.O. Greer Productions | | Oil & Gas Operator | Aug 2013 |
| 28202 | T.O.F., Inc. | | Oil & Gas Operator | Dec 2002 |
| 28203 | T.O.I. | Midland, TX 79710 | Oil & Gas Operator | Mar 2001 |
| 28204 | T.W.O. (Taylor Well Operating) | Missoula, MT 59803 | Oil & Gas Operator | May 2026 |
| 28205 | T2 Operating Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2026 |
| 28206 | Tab Operating, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Jul 2026 |
| 28207 | Tabbs Bay Production Company | Houston, TX 77019 | Oil Operator | Jul 2026 |
| 28208 | Tabco Exploration Inc. | New Orleans, LA 70131 | Oil & Gas Operator | Dec 1998 |
| 28209 | Tabco Producing Co. | | Oil & Gas Operator | Jan 1998 |
| 28210 | Taber Oil Co | | Oil Operator | Sep 2018 |
| 28211 | Taber, Alan R. | La Vernia, TX 78121 | Oil Operator | Jul 2026 |
| 28212 | Taber, Grover E. Jr. | Cocoa, FL 32926 | Gas Operator | Dec 2025 |
| 28213 | Tabor Creek Oil Company | Albany, TX 76430 | Oil & Gas Operator | Jul 2026 |
| 28214 | Tabor, Danny | Scottsville, KY 42164 | Oil Operator | Dec 2023 |
| 28215 | Tabula Rasa Energy, LLC | Allen, TX 75013 | Oil & Gas Operator | Dec 2020 |
| 28216 | Tacitus, LLC | Farmington, NM 87401 | Oil & Gas Operator | Jun 2026 |
| 28217 | Tack Operating LLC | Oklahoma City, OK 73172-1492 | Oil & Gas Operator | Aug 2021 |
| 28218 | Tackett & Sons DRLG Contractors, Inc | Salyersville, , K 41465 | Oil & Gas Operator | Dec 2024 |
| 28219 | Tacoma Operating LLC | Midland, TX 79707 | Oil & Gas Operator | Jul 2026 |
| 28220 | Tacor Resources Inc | Midland, TX 79705 | Oil & Gas Operator | Jul 2026 |
| 28221 | Tactical Oil & Gas, LLC | Odessa, TX 79768 | Oil & Gas Operator | Jul 2026 |
| 28222 | Tactical Operating Company, LLC | Houston, TX 77042 | Oil & Gas Operator | Jul 2026 |
| 28223 | Tadlock Properites | | Oil & Gas Operator | Jan 1994 |
| 28224 | Taft Investment Co., Inc. | Taft, TX 78390 | Oil Operator | Jul 2026 |
| 28225 | Taft Oil And Gas LLC | Bonham, TX 75418 | Oil & Gas Operator | Dec 2018 |
| 28226 | Tag Enterprises Inc | Shelocta, PA 15774-0310 | Gas Operator | Dec 2016 |
| 28227 | Tag Oil | La Vernia, TX 78121 | Oil Operator | Jul 2026 |
| 28228 | Tag Oil Co LLC | Ringling, OK 73456 | Oil & Gas Operator | Apr 2026 |
| 28229 | Tag Operating Company, Inc. | Houston, TX 77092 | Oil & Gas Operator | Jul 2026 |
| 28230 | Tag Petroleum Inc | Stillwater, OK 74076 | Oil & Gas Operator | Jan 2021 |
| 28231 | Tag Team Resources LLC | Eufaula, OK 74432 | Oil & Gas Operator | Apr 2026 |
| 28232 | Taggart Oil Co., Inc. | | Oil Operator | Oct 1992 |
| 28233 | Tahiti PTRS Enrgy Solutions Corp | Long Beach, CA 90807 | Oil Operator | Jul 2026 |
| 28234 | Tahoe Corporation | | Gas Operator | Feb 2023 |
| 28235 | Tahoe Energy, Inc. | Midland, TX 79703 | Oil & Gas Operator | Jul 1996 |
| 28236 | Tahoe Exploration Inc. | Abilene, TX 79608 | Oil & Gas Operator | Mar 2016 |
| 28237 | Tai Inc Dba Trendwell Antrim Inc | | Gas Operator | Apr 2026 |
| 28238 | Tailwater, Inc. | Oklahoma City, OK 73154 | Oil Operator | Aug 2024 |
| 28239 | Takacs, Ray W. | North Huntington, PA 15642 | Gas Operator | Dec 2025 |
| 28240 | Tal-Con, Inc. | Houston, TX 77279 | Oil & Gas Operator | Jul 2026 |
| 28241 | Tala Energy LLC | College Sta, TX 77842 | Oil & Gas Operator | Jul 2026 |
| 28242 | Talaria Oil & Gas LLC | Denver, CO 80203 | Oil Operator | Jul 2026 |
| 28243 | Talbert, Eugene Operating Co,Inc | Tyler, TX 75702 | Oil & Gas Operator | Dec 1997 |
| 28244 | Talbott Oil & Gas Co | Tuppers Plains, OH 45783 | Oil & Gas Operator | Dec 2000 |
| 28245 | Talbott, Stan C. | Midland, TX 79701 | Oil & Gas Operator | Feb 2005 |
| 28246 | Talbott, WM G | Albany, KY 42602 | Oil Operator | Dec 2022 |
| 28247 | Talco Midstream Assets, LTD. | | Oil Operator | May 2017 |
| 28248 | Taleeho Energy Co. | Normangee, TX 77871 | Oil & Gas Operator | Jun 2003 |
| 28249 | Talis Energy Inc. | Austin, TX 78731 | Oil & Gas Operator | Jul 2026 |
| 28250 | Talisman Energy USA Inc. | The Woodlands, TX 77381 | Oil & Gas Operator | May 2016 |
| 28251 | Talisman Resources, Inc. | Argyle, TX 76226 | Oil & Gas Operator | Mar 1995 |
| 28252 | Tall City Operations III LLC | Midland, TX 79701 | Oil & Gas Operator | Jun 2023 |
| 28253 | Tall City Operations LLC | Midland, TX 79702 | Oil & Gas Operator | Feb 2016 |
| 28254 | Tall Dune Resources, LLC | Houston, TX 77269 | Oil & Gas Operator | Jul 2026 |
| 28255 | Tallent, Edwin Miller | Albany, KY 42602 | Oil Operator | Dec 2023 |
| 28256 | Talley Resources | | Oil Operator | Jun 1994 |
| 28257 | Talley Resources, Inc. | Houma, LA 70360 | Oil & Gas Operator | Apr 1993 |
| 28258 | Talley, Don R. | Holliday, TX 76366 | Oil & Gas Operator | Jun 2002 |
| 28259 | Talley, W.T. | Olney, TX 76374 | Oil & Gas Operator | May 2005 |
| 28260 | Tallgrass Energy, L.L.C. | Tulsa, OK 74136 | Oil & Gas Operator | Jul 2026 |
| 28261 | Tallgrass Explor | | Oil Operator | Sep 1987 |
| 28262 | Tallgrass Petroleum Corporation | | Oil & Gas Operator | Feb 2012 |
| 28263 | Tallgrass Production Company LLC | Santa Anna, TX 76878 | Oil & Gas Operator | Mar 2014 |
| 28264 | Tallman Industries Inc | | Oil Operator | Mar 2026 |
| 28265 | Tallman Trust Co | | Oil Operator | Apr 2026 |
| 28266 | Talon Development Company | Boerne, TX 78006 | Oil & Gas Operator | Sep 2007 |
| 28267 | Talon Group LLC | Hays, KS 67601 | Oil Operator | Mar 2026 |
| 28268 | Talon Oil & Gas LLC | Dallas, TX 75243 | Oil & Gas Operator | Dec 2010 |
| 28269 | Talon Production, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Jul 2026 |
| 28270 | Talos Energy Offshore LLC | | Oil & Gas Operator | Jan 2025 |
| 28271 | Talos Ert LLC | | Oil & Gas Operator | Jan 2025 |
| 28272 | Talos Gulf Coast Onshore LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 28273 | Talos Third Coast LLC | | Oil & Gas Operator | Dec 2024 |
| 28274 | Talus Inc | Graham, TX 76450-1210 | Oil & Gas Operator | Feb 2017 |
| 28275 | Tam2 Squared Energy Services,LLC | Rockwall, TX 75032 | Oil Operator | Jul 2026 |
| 28276 | Tam2 Squared Operating, LLC | Rockwall, TX 75032 | Oil & Gas Operator | Jul 2026 |
| 28277 | Tamarack Energy Inc | Midland, TX 79701 | Oil & Gas Operator | Dec 2015 |
| 28278 | Tamarack Pet Co, Inc | | Oil Operator | Dec 2020 |
| 28279 | Tamarack Petroleum Company, Inc. | Midland, TX 79701 | Oil & Gas Operator | Jul 2026 |
| 28280 | Tamaroa Operating, LLC | Plano, TX 750866937 | Oil & Gas Operator | Jun 2026 |
| 28281 | Tamarron Resources, Inc. | Azle, TX 76020 | Oil & Gas Operator | Jul 2026 |
| 28282 | Tamer Oil & Gas | Seminole, TX 79360 | Oil & Gas Operator | Jul 2026 |
| 28283 | Tammany Exploration Company LLC | Houston, TX 77070 | Gas Operator | Jul 2012 |
| 28284 | Tammany Oil & Gas LLC | | Oil & Gas Operator | Feb 2005 |
| 28285 | Tamoil | | Oil Operator | May 2017 |
| 28286 | Tampke Service Co. | Devine, TX 78016 | Oil Operator | Jul 2026 |
| 28287 | Tamworth Resources LLC | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2026 |
| 28288 | Tana Exploration Company LLC | Dallas, TX 75219 | Oil & Gas Operator | Aug 2021 |
| 28289 | Tana Oil And Gas Corporation | Irving, TX 75062 | Oil & Gas Operator | Mar 2000 |
| 28290 | Tandem Energy Corporation | Houston, TX 77056 | Oil & Gas Operator | Jul 2026 |
| 28291 | Tandem Oil Inc | Oklahoma City, OK 73139 | Oil & Gas Operator | Oct 1998 |
| 28292 | Tanglehead Operating, LLC | La Vernia, TX 78121 | Oil Operator | Jul 2026 |
| 28293 | Tanglewood Expl LLC | Fort Worth, TX 76102-4665 | Gas Operator | Jun 2011 |
| 28294 | Tanglewood Oil & Gas Co. | Gouldbusk, TX 76845 | Oil & Gas Operator | Jul 2026 |
| 28295 | Tanglewood Oil & Gas LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2017 |
| 28296 | Tank Truck'S Inc | Sapulpa, OK 74066 | Oil Operator | Jun 2026 |
| 28297 | Tankersley, D. C. | Abilene, TX 79601 | Oil & Gas Operator | Sep 2002 |
| 28298 | Tannehill Oil Company | | Oil & Gas Operator | Dec 1991 |
| 28299 | Tanner Oil, Inc | | Oil & Gas Operator | Nov 2024 |
| 28300 | Tanner, M.B. | Moline, KS 67353 | Oil Operator | Apr 1986 |