| 30201 | Toma Oil & Gas, Inc. | Corpus Chrsti, TX 78411 | Oil & Gas Operator | Oct 1997 |
| 30202 | Tomahawk Oil Company, Inc. | Roundup, MT 59072 | Oil Operator | Feb 2025 |
| 30203 | Tomahawk Operating Co | Elida, NM 88116 | Oil & Gas Operator | Aug 2014 |
| 30204 | Tomar Petroleum Inc | Dallas, TX 75225 | Oil & Gas Operator | Mar 2001 |
| 30205 | Tomco Oil & Gas Inc. | Comanche, TX 76442 | Oil & Gas Operator | Apr 2025 |
| 30206 | Tomco Oil Incorp | | Oil Operator | Nov 1989 |
| 30207 | Tomco Oil, Inc. | Atlanta, KS 67008 | Oil & Gas Operator | Dec 2024 |
| 30208 | Tomel Production, LLC | Dallas, TX 75360 | Oil & Gas Operator | Apr 2025 |
| 30209 | Tomkat Limited | | Oil & Gas Operator | Jul 1995 |
| 30210 | Tomkat, LTD. | Wichita, KS 67278 | Oil & Gas Operator | Oct 2009 |
| 30211 | Tomlinson Interest | | Oil & Gas Operator | Jun 2013 |
| 30212 | Tomlinson Interests | | Oil & Gas Operator | Jan 1983 |
| 30213 | Tomlinson Oil Co. Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Jun 2023 |
| 30214 | Tomlinson Operating, LLC | Ketchum, ID 83340 | Oil & Gas Operator | Oct 2014 |
| 30215 | Tomlinson W E | Comanche, OK 73529-9561 | Oil Operator | Aug 1996 |
| 30216 | Tomlinson, John Oil Operator | Batson, TX 77519 | Oil & Gas Operator | Mar 2008 |
| 30217 | Tomlinson, Sid | Hays, KS 67601 | Oil & Gas Operator | Sep 2002 |
| 30218 | Tomlinson, Thomas K. Inc. | Port Lavaca, TX 77979 | Oil & Gas Operator | Jul 2003 |
| 30219 | Tommy A. Paul | | Oil Operator | Oct 2020 |
| 30220 | Tommy Joe Jenny | | Gas Operator | Nov 2024 |
| 30221 | Tomorrows Energy Exploration Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Dec 2024 |
| 30222 | Tompkins, Kevin D. | Kilgore, TX 75663 | Oil Operator | Apr 2025 |
| 30223 | Tomsco Energy | Artesia, NM 88210 | Oil & Gas Operator | Mar 1996 |
| 30224 | Tomsha LLC | Bryson, TX 76427 | Oil Operator | Apr 2025 |
| 30225 | Tomson Theodore A | Brackenridge, PA 15014 | Gas Operator | Dec 2024 |
| 30226 | Tomstan Drilling Company | Jackson, OH 45640-7120-7120 | Gas Operator | Dec 2016 |
| 30227 | Tonda Oil Company | Independence, KS 67301 | Oil & Gas Operator | Jul 1996 |
| 30228 | Toney Branch Gas Company | Huntington, WV 25702-0086 | Gas Operator | Dec 2021 |
| 30229 | Toney, W.L. | Borger, TX 79007 | Oil & Gas Operator | Oct 2012 |
| 30230 | Tong Petrotech Inc. | Houston, TX 77079 | Oil & Gas Operator | Apr 2025 |
| 30231 | Tongue Schuster And Associates Inc | | Oil & Gas Operator | Feb 2007 |
| 30232 | Tonk Creek Oil Company | Aspermont, TX 79502 | Oil & Gas Operator | Apr 2025 |
| 30233 | Tonka Energy Inc. | | Oil & Gas Operator | Dec 2004 |
| 30234 | Tonka Oil & Gas Production Inc | Buffalo, WY 82834 | Oil & Gas Operator | Sep 1999 |
| 30235 | Tonkawa Saltwater Disposal LLC | Tonkawa, OK 74653 | Oil Operator | Dec 2015 |
| 30236 | Tonner Hills SSP LLC | | Oil & Gas Operator | Dec 2012 |
| 30237 | Tonner Petroleum LLC | Dallas, TX 75248-3326 | Oil Operator | Feb 2011 |
| 30238 | Tonto Petroleum Corporation | Post, TX 79356 | Oil & Gas Operator | Jan 2007 |
| 30239 | Tontol, LLC | Scottsdale, AZ 85250 | Oil Operator | Aug 2019 |
| 30240 | Tony Oil Company | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2025 |
| 30241 | Tony'S Disposal Service Inc | Yale, OK 74085 | Oil Operator | Aug 1997 |
| 30242 | Tonys Crude Oil Reclaiming Plant Inc | | Oil Operator | Jan 2025 |
| 30243 | Tooby Farms | | Gas Operator | Dec 1989 |
| 30244 | Toomey Oil Company Inc | Tulsa, OK 74120 | Oil & Gas Operator | Feb 2025 |
| 30245 | Top O'Texas Energy, L.P. | Pampa, TX 79066 | Oil & Gas Operator | Apr 2025 |
| 30246 | Top O'Texas Production Co. | Pampa, TX 79065 | Oil & Gas Operator | May 2024 |
| 30247 | Top O'Texas Production, Inc. | Odessa, TX 79764 | Oil & Gas Operator | Feb 1997 |
| 30248 | Top Op, L.L.C. | Houston, TX 77077 | Oil & Gas Operator | May 2020 |
| 30249 | Top Operating Company | | Oil & Gas Operator | Oct 2022 |
| 30250 | Topat Oil Corporation | Midland, TX 79701 | Oil & Gas Operator | Sep 2017 |
| 30251 | Topaz Oil & Gas Inc | Fort Collins, CO 80627 | Gas Operator | Nov 2019 |
| 30252 | Topaz Oil Company | Diboll, TX 75941 | Oil & Gas Operator | Apr 1994 |
| 30253 | Topco Inc | Tulsa, OK 74105 | Oil & Gas Operator | Nov 2005 |
| 30254 | Topko N. Wilmington Prtnrship. | | Oil & Gas Operator | Dec 1995 |
| 30255 | Topper Oil Company | Borger, TX 79007 | Oil & Gas Operator | Apr 2025 |
| 30256 | Tops Operating Co.,Inc. | | Oil Operator | Dec 1985 |
| 30257 | Topsail Secondary Recovery LLC | Edmond, OK 73013 | Oil & Gas Operator | Jan 2025 |
| 30258 | Tor Energy, LLC | Temple, TX 76501 | Oil & Gas Operator | Apr 2025 |
| 30259 | Tora Oil & Gas | Hobbs, NM 88240 | Oil & Gas Operator | Jan 2008 |
| 30260 | Tora Oil & Gas, LLC | Jal, NM 88252 | Oil & Gas Operator | Dec 2020 |
| 30261 | Torch E & P Company | Houston, TX 77010 | Oil & Gas Operator | Jan 2015 |
| 30262 | Torch Energy MKT Inc | Houston, TX 77010 | Oil & Gas Operator | Aug 1996 |
| 30263 | Torch Energy Services, Inc. | Houston, TX 77010 | Oil & Gas Operator | Sep 2011 |
| 30264 | Torch Oil & Gas Company | Houston, TX 77010 | Oil & Gas Operator | Aug 1997 |
| 30265 | Torch Operating Company | Houston, TX 77010 | Oil & Gas Operator | Mar 2015 |
| 30266 | Torch Operating LLC | Fort Worth, TX 76135 | Oil & Gas Operator | Oct 2020 |
| 30267 | Torch Opr Co-Stone Petr Corp | | Oil & Gas Operator | Jul 1997 |
| 30268 | Toreador Exploration & Prod Inc | Dallas, TX 75240 | Oil & Gas Operator | Feb 2008 |
| 30269 | Torent Oil & Gas Co | Canfield, OH 44406 | Oil & Gas Operator | Dec 2001 |
| 30270 | Tornado Energy Corporation | Sugarland, TX 77479-7124 | Oil & Gas Operator | Nov 2014 |
| 30271 | Torrance Petroleum Inc. | | Oil & Gas Operator | Dec 2003 |
| 30272 | Torrent Oil LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 30273 | Torreon Oil Co | FT Worth, TX 76126 | Oil & Gas Operator | Sep 2008 |
| 30274 | Torrey, Martha M. | Limestone, NY 14753 | Oil & Gas Operator | Dec 2023 |
| 30275 | Torrid Energy Company | | Oil & Gas Operator | Jun 1988 |
| 30276 | Tortuga Operating Company | Houston, TX 77055 | Oil & Gas Operator | Apr 2025 |
| 30277 | Tosco Enhanced Oil Recovery Corporation | | Oil Operator | Dec 1981 |
| 30278 | Toshic Dynamics, LLC | Scottsdale, AZ 85251 | Oil Operator | Nov 2006 |
| 30279 | Totah Production | Duncan, OK 73533-9406 | Oil Operator | Mar 2015 |
| 30280 | Total E&P USA, Inc. | Houston, TX 77210 | Oil & Gas Operator | Nov 2011 |
| 30281 | Total Minatome Corporation | Houston, TX 77210 | Oil & Gas Operator | Dec 1998 |
| 30282 | Total Petroleum Inc | Denver, CO 80201-0500 | Oil & Gas Operator | Nov 2006 |
| 30283 | Totalfinaelf E&P USA Inc | Houston, TX 77024 | Oil & Gas Operator | Jul 2007 |
| 30284 | Toto Energy, LLC | Spring, TX 77380 | Oil & Gas Operator | Dec 2019 |
| 30285 | Totten Resources | | Oil Operator | Sep 2007 |
| 30286 | Touchstone Properties, Inc. | | Oil Operator | Mar 1988 |
| 30287 | Touchstone Resources USA, Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 2006 |
| 30288 | Touchstone Trading & Transportation Inc | | Oil Operator | Jul 2024 |
| 30289 | Tower Drilling Corporation | | Oil & Gas Operator | Dec 2021 |
| 30290 | Tower Energy Corporation | Sapulpa, OK 74067-0837 | Oil & Gas Operator | Mar 2015 |
| 30291 | Tower Oil & Gas Company, Inc. | Englewood, CO 80111 | Oil & Gas Operator | May 2001 |
| 30292 | Tower Production LLC | Lubbock, TX 79413 | Oil Operator | Apr 2025 |
| 30293 | Tower Resources Inc | Conroe, TX 77304 | Oil & Gas Operator | Apr 2025 |
| 30294 | Tower Wanda L Nations | Oklahoma City, OK 73123 | Oil & Gas Operator | Aug 1996 |
| 30295 | Town Of Aurora | East Aurora, NY 14052 | Gas Operator | Dec 2023 |
| 30296 | Town Of Chautauqua | Mayville, NY 14757 | Gas Operator | Dec 2023 |
| 30297 | Town Of Newstead | Akron, NY 14001 | Gas Operator | Dec 2023 |
| 30298 | Town Of West Seneca | West Seneca, NY 14224 | Gas Operator | Dec 2023 |
| 30299 | Town Oil Company | Paola, KS 66071 | Oil & Gas Operator | Dec 2024 |
| 30300 | Towne Exploration Company LP | | Oil & Gas Operator | Dec 2024 |