| 201 | Fredonia Resources Inc. | Longview, TX 75606 | Oil & Gas Operator | Aug 2003 |
| 202 | Friendly Energy Services, Inc. | Corpus Christ, TX 78410 | Oil & Gas Operator | Apr 2026 |
| 203 | Frontier Resources, Inc. | Dallas, TX 75214 | Oil & Gas Operator | Apr 2026 |
| 204 | Fuller Petroleum Inc | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 205 | G & F Oil, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Apr 2026 |
| 206 | G E Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | May 2020 |
| 207 | Gaeton Oil & Gas Corp. | Derby, CT 06418 | Oil & Gas Operator | Jun 1998 |
| 208 | Galbraith, Dallas S. | Abilene, TX 79601 | Oil & Gas Operator | Feb 1994 |
| 209 | Gannett Operating LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 210 | Garvin Energy Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 1995 |
| 211 | Gerry-Mac Oil, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 212 | Ginnings Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2025 |
| 213 | Glahn Resources, Inc. | Arlington, TX 76003 | Oil & Gas Operator | Apr 2026 |
| 214 | Global Drilling, LLC | N Richlnd HLS, TX 76180 | Oil & Gas Operator | Apr 2026 |
| 215 | Goopco, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 216 | Grand Energy, Inc. | Dallas, TX 75248 | Oil & Gas Operator | Oct 2002 |
| 217 | Great American Resources Inc. | Bowie, TX 76230 | Oil & Gas Operator | Apr 2026 |
| 218 | Greco Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 219 | Greenhaw, Morris R. | Desdemona, TX 76445 | Oil & Gas Operator | Apr 2026 |
| 220 | Griffin Petroleum Company | Midland, TX 79705 | Oil & Gas Operator | Apr 2026 |
| 221 | Griffin Resources | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 2003 |
| 222 | Griffin Resources LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2026 |
| 223 | Grimes Energy Company | Abilene, TX 79604 | Oil & Gas Operator | Mar 2005 |
| 224 | Grimes, Norman W. | Canyon, TX 79015 | Oil & Gas Operator | Jul 2014 |
| 225 | Grothe Bros. | Albany, TX 76430 | Oil & Gas Operator | May 2011 |
| 226 | Grothe Bros., Inc. | Slaton, TX 79364 | Oil & Gas Operator | Apr 2026 |
| 227 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
| 228 | GTG Operating, LLC | Tyler, TX 75713 | Oil & Gas Operator | Apr 2026 |
| 229 | Guinn Investments, Inc. | Graham, TX 76450 | Oil & Gas Operator | Oct 2018 |
| 230 | H & S Production, Inc. | Dallas, TX 75252 | Oil & Gas Operator | Mar 2004 |
| 231 | H-M Resource Management, Inc. | Houston, TX 77055 | Oil & Gas Operator | Feb 2023 |
| 232 | H. D. Investments | Breckenridge, TX 76424 | Oil & Gas Operator | Mar 2025 |
| 233 | H.A.N. Operating Incorporated | Clyde, TX 79510 | Oil & Gas Operator | Aug 2016 |
| 234 | Haggard, E. A. | Graham, TX 76450 | Oil & Gas Operator | Apr 2001 |
| 235 | Hale Oil & Gas Properties | Graham, TX 76450 | Oil & Gas Operator | Jul 1997 |
| 236 | Hallwood Energy Corporation | Oklahoma City, OK 73154 | Oil & Gas Operator | Feb 2005 |
| 237 | Hallwood Petroleum, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 238 | Hanvey, Don H. Oil Interests Inc | Cisco, TX 76437 | Oil & Gas Operator | Apr 2026 |
| 239 | Harding Company | Dallas, TX 75244 | Oil & Gas Operator | Jan 2015 |
| 240 | Harper, Clint | Woodson, TX 76491 | Oil & Gas Operator | Apr 2026 |
| 241 | Harper, William E. | Woodson, TX 76491 | Oil & Gas Operator | Jul 2016 |
| 242 | Harrell Operating Inc | Graham, TX 76450 | Oil & Gas Operator | Sep 2005 |
| 243 | Harrell Operating, L.L.C. | Graham, TX 76450 | Oil & Gas Operator | Jun 2008 |
| 244 | Harrell, Charles | Graham, TX 76450 | Oil & Gas Operator | Dec 2000 |
| 245 | Hartel, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Aug 1997 |
| 246 | Harvick, George R. | Albany, TX 76430 | Oil & Gas Operator | Apr 2026 |
| 247 | Haskit, Kendall | Kyle, TX 78640 | Oil & Gas Operator | Apr 2026 |
| 248 | Hat Oil & Gas, Inc. | Slaton, TX 79364 | Oil & Gas Operator | Feb 2002 |
| 249 | Hawkins Energy Corporation | Austin, TX 78711 | Oil & Gas Operator | Apr 1997 |
| 250 | Hawkins Oil & Gas Inc | Tulsa, OK 74103 | Oil & Gas Operator | Dec 2016 |
| 251 | Hawkins, G. A. | Graham, TX 76450 | Oil & Gas Operator | Dec 2013 |
| 252 | Haynes & Shirley Production Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Apr 2026 |
| 253 | HD Special-Situations, LP | San Francisco, CA 94111 | Oil & Gas Operator | Feb 2014 |
| 254 | Heartland Resources, Inc. | Temple, TX 76501 | Oil & Gas Operator | Mar 2008 |
| 255 | Hendrix, John H. Corporation | Midland, TX 79705 | Oil & Gas Operator | Sep 2018 |
| 256 | Herod, Bill | Ranger, TX 76470 | Oil & Gas Operator | Apr 2022 |
| 257 | Herring, Ray | Graham, TX 76450 | Oil & Gas Operator | Jul 2014 |
| 258 | Hess, Jerry Operating Co. | Muenster, TX 76252 | Oil & Gas Operator | Apr 2026 |
| 259 | Highground, Inc. | Abilene, TX 79605 | Oil & Gas Operator | Apr 2026 |
| 260 | Hill, Charles Drilling, Inc. | Grand Prairie, TX 75052 | Oil & Gas Operator | Apr 2026 |
| 261 | Hill, R.M. Operating Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 262 | Hindman, E. C. Jr. Partnership | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2008 |
| 263 | Holson Well Service | Albany, TX 76430 | Oil & Gas Operator | Apr 2026 |
| 264 | Horizon Well Services, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Apr 2026 |
| 265 | Howle Operating Account, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 1999 |
| 266 | Howle, A.G. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2011 |
| 267 | Hughes, Dan A. Company | Beeville, TX 78104 | Oil & Gas Operator | May 2006 |
| 268 | Humphrey, Thos.D. Oil Prop.,Inc. | Gainesville, TX 76241 | Oil & Gas Operator | Aug 1999 |
| 269 | Hunt Operating, LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2026 |
| 270 | I.T. Corporation | Arlington, TX 76016 | Oil & Gas Operator | Apr 2026 |
| 271 | Imperial Oil Company | Houston, TX 77073 | Oil & Gas Operator | Oct 2004 |
| 272 | Integrated Operating Corporation | Dallas, TX 75243 | Oil & Gas Operator | Apr 2026 |
| 273 | Intercoast Oil And Gas Company | Tulsa, OK 74136 | Oil & Gas Operator | Jun 1997 |
| 274 | International Oil&Gas Consultant | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 275 | Interstate Explorations LLC | Houston, TX 77010 | Oil & Gas Operator | Apr 2026 |
| 276 | Iron Horse Oil & Gas, Inc. | Albany, TX 76430 | Oil & Gas Operator | Apr 2026 |
| 277 | Itx Corporation | Dallas, TX 75225 | Oil & Gas Operator | Apr 2026 |
| 278 | J & J Oil, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Aug 2012 |
| 279 | J & S Gas Company | Ranger, TX 76470 | Oil & Gas Operator | Oct 2003 |
| 280 | J & TG, LLC | Albany, TX 76430 | Oil & Gas Operator | Apr 2026 |
| 281 | J G Oil & Gas | Albany, TX 76430 | Oil & Gas Operator | Apr 2026 |
| 282 | J.C. Operating | Breckenridge, TX 76424 | Oil & Gas Operator | Aug 2016 |
| 283 | Jackson Energy Development, Inc. | Cedar Park, TX 78613 | Oil & Gas Operator | Apr 2026 |
| 284 | Jackson Oil Company | Ranger, TX 76470 | Oil & Gas Operator | Sep 1998 |
| 285 | Jeff Dooley Operating, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2026 |
| 286 | Jilpetco, Inc. | Fort Worth, TX 76121 | Oil & Gas Operator | Apr 2026 |
| 287 | JJB Operating Co. | Mineral Wells, TX 76068 | Oil & Gas Operator | Apr 2026 |
| 288 | Jjes, Inc. | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 289 | JM Energy, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 2020 |
| 290 | JM Investments, L.L.C. | Cross Plains, TX 76443 | Oil & Gas Operator | Apr 2026 |
| 291 | Johnson, William D. | Fort Worth, TX 76116 | Oil & Gas Operator | Mar 2008 |
| 292 | Jones Company, LTD. | Albany, TX 76430 | Oil & Gas Operator | May 1999 |
| 293 | Kadane Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 1998 |
| 294 | Karper Company, The | Graham, TX 76450 | Oil & Gas Operator | Feb 2003 |
| 295 | Karper Oil & Gas Corporation | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 296 | KC Resources Inc | Snowmass VLG., CO 81615 | Oil & Gas Operator | Jan 2026 |
| 297 | Keating Energy, Inc. | FT Washington, PA 19034 | Oil & Gas Operator | Apr 2026 |
| 298 | Kerr-McGee Corporation | Dallas, TX 75380 | Oil & Gas Operator | Feb 2026 |
| 299 | Kerr-McGee Oil & Gas Onshore LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2017 |
| 300 | Kerr-McGee Oil & Gas Onshore LP | Houston, TX 77046 | Oil & Gas Operator | Apr 2026 |