| 4201 | Gardner Energy Corporation | Houston, TX 77024 | Oil & Gas Operator | Mar 1999 |
| 4202 | Gardner Production, LLC | Decatur, TX 76234 | Oil & Gas Operator | Jul 2023 |
| 4203 | Garrd Oil Company LLC | FT Stockton, TX 79735 | Oil & Gas Operator | Mar 2025 |
| 4204 | Garrett, Dorothy D. | Big Spring, TX 79720 | Oil & Gas Operator | Mar 1995 |
| 4205 | Garrison LTD. | San Antonio, TX 78257 | Oil & Gas Operator | Mar 2025 |
| 4206 | Garrison Oil Company | Elkhart, TX 75839 | Oil & Gas Operator | Aug 1995 |
| 4207 | Garrison Operating, L.L.C. | Tomball, TX 77375 | Oil & Gas Operator | Mar 2025 |
| 4208 | Garrison Resource Developmnt LLC | Plainview, TX 79072 | Oil Operator | Mar 2025 |
| 4209 | Garvin Energy Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 1995 |
| 4210 | Gary Oil & Gas | Deer Park, TX 77536 | Oil & Gas Operator | Mar 2025 |
| 4211 | Gary Permian, LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2022 |
| 4212 | Gary Production Company | Carthage, TX 75633 | Gas Operator | Mar 2025 |
| 4213 | Garza Oil & Gas LLC | Quemado, TX 78877 | Oil Operator | Mar 2025 |
| 4214 | Garzaco Operating, LLC | Concepcion, TX 78349 | Oil & Gas Operator | Mar 2025 |
| 4215 | Gas Corporation Of America | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2025 |
| 4216 | Gas Engine & Compressor Serv,Inc | Longview, TX 75615 | Oil & Gas Operator | Feb 2003 |
| 4217 | Gas Resources, Inc. | Southern Pine, NC 28387 | Oil & Gas Operator | Mar 2004 |
| 4218 | Gas Tap Corp. | Plano, TX 75075 | Gas Operator | Mar 2025 |
| 4219 | Gas Well Operators | Pampa, TX 79066 | Gas Operator | Nov 2002 |
| 4220 | Gas Well Operators, Inc. | Pampa, TX 79066 | Gas Operator | Nov 1997 |
| 4221 | Gasanadarko LTD | Oklahoma City, OK 73116 | Gas Operator | May 1994 |
| 4222 | Gasoco, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2005 |
| 4223 | Gasoil, Inc. | Spearman, TX 79081 | Oil & Gas Operator | Dec 2015 |
| 4224 | Gasper Rice Resources, LTD. | Houston, TX 77068 | Oil & Gas Operator | Mar 2025 |
| 4225 | Gassiot Holding Corporation | Coleman, TX 76834 | Oil & Gas Operator | Apr 2016 |
| 4226 | Gastar Exploration Texas, LP | Houston, TX 77010 | Oil & Gas Operator | Oct 2018 |
| 4227 | Gastex, Inc. | Midland, TX 79710 | Oil & Gas Operator | Mar 1995 |
| 4228 | Gator Development, Inc. | Vernon, TX 76384 | Oil Operator | Dec 2004 |
| 4229 | Gauge Oil Company | Luling, TX 78648 | Oil & Gas Operator | Mar 2025 |
| 4230 | Gauntt, Inc. | San Antonio, TX 78248 | Oil & Gas Operator | Dec 2024 |
| 4231 | Gaylyn, Inc. | Comanche, TX 76442 | Oil & Gas Operator | Mar 2025 |
| 4232 | Gaynor Oil Co. | Sherman, TX 75092 | Oil & Gas Operator | Jun 2002 |
| 4233 | GBF Operating LLC | Morrison, CO 80465 | Oil & Gas Operator | Mar 2025 |
| 4234 | GBG Operating Corp. | Wichita Falls, TX 76302 | Oil & Gas Operator | Sep 1998 |
| 4235 | Gcea, LLC | Graham, TX 76450 | Oil & Gas Operator | Mar 2008 |
| 4236 | Gcer Onshore, LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2015 |
| 4237 | Gco Drilling Company | Midland, TX 79702 | Oil & Gas Operator | Dec 1993 |
| 4238 | Gcofer LLC | Hobbs, NM 88240 | Oil Operator | Mar 2025 |
| 4239 | Gcows Operating LLC | Montgomery, TX 77356 | Oil Operator | Mar 2025 |
| 4240 | Gda Investments Inc | Oklahoma City, OK 73123-0403 | Oil & Gas Operator | Jan 2025 |
| 4241 | Gec Operating, Inc. | Houston, TX 77024 | Oil & Gas Operator | Mar 2025 |
| 4242 | Gecko | Dallas, TX 75205 | Oil & Gas Operator | Mar 2008 |
| 4243 | Gecko Oil & Gas | Brookesmith, TX 76827 | Oil & Gas Operator | Jun 2007 |
| 4244 | Geer Production Company | Jacksboro, TX 76458 | Oil & Gas Operator | Mar 2025 |
| 4245 | Gei Management Co., Inc. | Houston, TX 77024 | Oil & Gas Operator | Sep 1993 |
| 4246 | Geiselman, Grover J. | Richmond, TX 77469 | Oil & Gas Operator | Feb 1995 |
| 4247 | Geiser Operating, Inc. | Portland, TX 78374 | Oil & Gas Operator | Sep 2019 |
| 4248 | Geiser, D. Allen | Portland, TX 78374 | Oil & Gas Operator | Oct 2005 |
| 4249 | Gel Petroleum, Inc. | Bay City, TX 77414 | Oil & Gas Operator | Mar 2025 |
| 4250 | Gem Oil Company | Albany, TX 76430 | Oil & Gas Operator | Sep 2002 |
| 4251 | Gemarmi Inc. | Cypress, TX 77433 | Oil & Gas Operator | Mar 2025 |
| 4252 | Gemini Energy Company | Kilgore, TX 75663 | Oil Operator | Mar 2025 |
| 4253 | Gemini Energy, Inc. | Kerens, TX 75144 | Oil Operator | Mar 2025 |
| 4254 | Gemini Exploration Company | Dallas, TX 75219 | Oil & Gas Operator | Mar 1997 |
| 4255 | Gemini Exploration Inc | Oklahoma City, OK 73159 | Oil & Gas Operator | May 2013 |
| 4256 | Gen-Nan Resources & Equip., Inc. | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 4257 | Gen-Nan Resources & Equip., L.P. | Midland, TX 79702 | Oil & Gas Operator | Jan 2008 |
| 4258 | Gen-Sher | Bluegrove, TX 76352 | Oil & Gas Operator | Feb 2005 |
| 4259 | Gen-Sher L.L.P. | Bluegrove, TX 76352 | Oil & Gas Operator | Mar 2025 |
| 4260 | Genecov Group, Inc. The | Tyler, TX 75713 | Oil & Gas Operator | Dec 2002 |
| 4261 | Genepa Petroleum Company | Spring, TX 77379 | Oil & Gas Operator | Mar 2025 |
| 4262 | General Atlantic Resources Inc | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |
| 4263 | General Crude Oil Co | Houston, TX 77005 | Oil & Gas Operator | Dec 1979 |
| 4264 | General Oil Company, Inc. | Wichita, KS 67213 | Oil & Gas Operator | Mar 2025 |
| 4265 | General Operating Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2025 |
| 4266 | Genesis Crude Oil LP | Houston, TX 77002 | Oil & Gas Operator | Apr 2000 |
| 4267 | Genesis Exploration LLC | FT Stockton, TX 79735 | Oil & Gas Operator | Mar 2025 |
| 4268 | Genesis Gas & Oil LLC | Kansas City, MO 64108 | Oil & Gas Operator | Aug 2011 |
| 4269 | Genesis Producing Company | Houston, TX 77024 | Oil & Gas Operator | Oct 2007 |
| 4270 | Genesis Producing Company, L.P. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Dec 2017 |
| 4271 | Genesis St Operating LLC | Kansas City, MO 64108 | Oil & Gas Operator | Mar 2025 |
| 4272 | Genesis Well Service | Colleyville, TX 76034 | Oil Operator | Mar 2025 |
| 4273 | Genie Corporation | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 4274 | Genie Oil Company | Devine, TX 78016 | Oil & Gas Operator | Mar 2025 |
| 4275 | Genie Oil Company "A" | Devine, TX 78016 | Oil Operator | Dec 2021 |
| 4276 | Gennesaret Investments, LLC | Burleson, TX 76028 | Oil & Gas Operator | Aug 2024 |
| 4277 | Geo Asset Management, Inc. | Katy, TX 77493 | Oil & Gas Operator | Mar 2025 |
| 4278 | Geo Co., Inc. | Austin, TX 78745 | Oil Operator | Apr 1988 |
| 4279 | Geo Engineering, Inc. | Houston, TX 77027 | Oil & Gas Operator | Jun 2009 |
| 4280 | Geo Logic Environmental SRVCS LC | Kilgore, TX 75663 | Oil Operator | Dec 2011 |
| 4281 | Geo Petroleum, Inc. | Borger, TX 79007 | Oil & Gas Operator | Mar 2025 |
| 4282 | Geo-Graphic Production, Inc. | Gonzales, TX 78629 | Oil & Gas Operator | Mar 2025 |
| 4283 | Geo-Vest Of Texas, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Jul 2008 |
| 4284 | Geodominion Petroleum | Corpus Chrsti, TX 78403 | Oil & Gas Operator | May 2012 |
| 4285 | Geodyne Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2015 |
| 4286 | Geodyne Resources Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2010 |
| 4287 | Geomark Resources, L.L.C. | Lubbock, TX 79453 | Oil & Gas Operator | Mar 2025 |
| 4288 | Geomeg Energy Operating Co., LLC | Aransas Pass, TX 78336 | Oil & Gas Operator | Mar 2025 |
| 4289 | Geomeg Operating, LLC | Dripping SPGS, TX 78620 | Oil Operator | Nov 2010 |
| 4290 | Geonatural Resources, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Mar 2025 |
| 4291 | Geopetra Partners, LLC | Irving, TX 75063 | Oil & Gas Operator | Mar 2025 |
| 4292 | George Interests | Tyler, TX 75703 | Oil & Gas Operator | Jul 1995 |
| 4293 | Georgetown Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 1995 |
| 4294 | Georgetown Operating Company | Oklahoma City, OK 73113 | Oil & Gas Operator | Jun 2019 |
| 4295 | Georgia-Pacific Corp. | Atlanta, GA 30348 | Gas Operator | May 1986 |
| 4296 | Geosouthern Energy Corporation | The Woodlands, TX 77380 | Oil & Gas Operator | Mar 2025 |
| 4297 | Geosouthern Operating II, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Mar 2025 |
| 4298 | Geostrat Inc. | Addison, TX 75001 | Oil & Gas Operator | Nov 2011 |
| 4299 | Geosurveys, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Mar 2025 |
| 4300 | Geotech Production Inc | Centennial, CO 80016 | Oil & Gas Operator | Jun 2020 |