| 201 | GBF Operating LLC | Morrison, CO 80465 | Oil & Gas Operator | Apr 2024 |
| 202 | Geosurveys, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Apr 2024 |
| 203 | Gerry-Mac Oil, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 204 | Giant Energy Corp. | Dallas, TX 75230 | Oil & Gas Operator | Jul 2019 |
| 205 | Giant NRG Co., LP | Dallas, TX 75230 | Oil & Gas Operator | Apr 2024 |
| 206 | Global Drilling, LLC | N Richlnd HLS, TX 76180 | Oil & Gas Operator | Apr 2024 |
| 207 | Gordon B Services LLC | Eastland, TX 76448 | Oil & Gas Operator | Apr 2024 |
| 208 | Great West Operating Co., Inc. | Dallas, TX 75240 | Oil & Gas Operator | Aug 2003 |
| 209 | Greenhaw, Morris R Oil & Gas Inc | Desdemona, TX 76445 | Oil & Gas Operator | May 2006 |
| 210 | Greenhaw, Morris R. | Desdemona, TX 76445 | Oil & Gas Operator | Apr 2024 |
| 211 | Griffin Resources | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 2003 |
| 212 | Grothe Bros. | Albany, TX 76430 | Oil & Gas Operator | May 2011 |
| 213 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
| 214 | GT Productions | Euless, TX 76040 | Oil & Gas Operator | Jan 1997 |
| 215 | Guidance Oil Developers | Boerne, TX 78006 | Oil & Gas Operator | Apr 2024 |
| 216 | Guidance Oil Developers, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Mar 2008 |
| 217 | H & S Production, Inc. | Dallas, TX 75252 | Oil & Gas Operator | Mar 2004 |
| 218 | H. Bryan Poff, LLC | Cedar Park, TX 78613 | Oil & Gas Operator | Oct 2018 |
| 219 | Hanvey Production Co., Inc. | Roanoke, TX 76262 | Oil & Gas Operator | Nov 2012 |
| 220 | Hanvey, Don H. Oil Interests Inc | Ranger, TX 76470 | Oil & Gas Operator | Apr 2024 |
| 221 | Hardrock Operating Company, Inc. | Fort Worth, TX 76161 | Oil & Gas Operator | Apr 2024 |
| 222 | Harvick, George R. | Albany, TX 76430 | Oil & Gas Operator | Apr 2024 |
| 223 | Hayes Oil & Gas Co. | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2005 |
| 224 | HD Special-Situations, LP | San Francisco, CA 94111 | Oil & Gas Operator | Feb 2014 |
| 225 | Heflin, Bryan Exploration, Inc. | Strawn, TX 76475 | Oil & Gas Operator | Mar 2008 |
| 226 | Heights Energy Corporation | Plano, TX 75026 | Oil & Gas Operator | Apr 2024 |
| 227 | Heritage Petroleum Corporation | Cleburne, TX 76033 | Oil & Gas Operator | Apr 2024 |
| 228 | Herod, Bill | Ranger, TX 76470 | Oil & Gas Operator | Apr 2022 |
| 229 | Herzfeld Fabricators Inc | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2017 |
| 230 | Hess, Jerry Operating Co. | Muenster, TX 76252 | Oil & Gas Operator | Apr 2024 |
| 231 | Hewitt, Alan P. | Midland, TX 79702 | Oil & Gas Operator | Aug 1997 |
| 232 | Hexagon Oil And Gas Inc. | Fort Worth, TX 76132 | Oil & Gas Operator | Apr 2024 |
| 233 | Hill Operating LLC | Mineral Wells, TX 76068 | Oil & Gas Operator | Nov 2023 |
| 234 | Hill, Charles Drilling, Inc. | Grand Prairie, TX 75052 | Oil & Gas Operator | Apr 2024 |
| 235 | Hill-Lake Gas Storage, L.P. | Houston, TX 77057 | Oil & Gas Operator | Aug 2010 |
| 236 | Hill-Lake Gas Storage, LLC | Tulsa, OK 74172 | Oil & Gas Operator | Apr 2024 |
| 237 | Hipp Oil And Gas Inc. | Big Spring, TX 79720 | Oil & Gas Operator | Apr 2024 |
| 238 | Hodges & Rister | Abilene, TX 79603 | Oil & Gas Operator | Apr 2016 |
| 239 | Hofco, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Apr 2024 |
| 240 | Hoffmann Oil Company | Eastland, TX 76448 | Oil & Gas Operator | Apr 2024 |
| 241 | Horn Energy | Eastland, TX 76448 | Oil & Gas Operator | Apr 2024 |
| 242 | Houtchens, D. D. | Gainesville, TX 76240 | Oil & Gas Operator | Apr 2024 |
| 243 | Huber Energy L.P. | Houston, TX 77079 | Oil & Gas Operator | Feb 2007 |
| 244 | Huber Energy Panhandle LP | Houston, TX 77079 | Oil & Gas Operator | Oct 2005 |
| 245 | Huber J M Corp | Edison, NJ 08837 | Oil & Gas Operator | Apr 2024 |
| 246 | Hudson, Comer Oil & Gas | Cisco, TX 76437 | Oil & Gas Operator | Jan 2003 |
| 247 | Hunter Brothers | Wichita Falls, TX 76302 | Oil & Gas Operator | Jul 2007 |
| 248 | Hunter Oil & Gas Co. | Bangs, TX 76823 | Oil & Gas Operator | Apr 2024 |
| 249 | Ice Well Services, Inc. | Abilene, TX 79603 | Oil & Gas Operator | Apr 2024 |
| 250 | Ics Energy LLC | Stamford, TX 79553 | Oil & Gas Operator | Apr 2024 |
| 251 | Imperial Oil Company | Houston, TX 77073 | Oil & Gas Operator | Oct 2004 |
| 252 | International Basic Res., Inc. | Abilene, TX 79604 | Oil & Gas Operator | May 1996 |
| 253 | International Oil&Gas Consultant | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 254 | Interstate Explorations LLC | Houston, TX 77010 | Oil & Gas Operator | Apr 2024 |
| 255 | Isbell, Bob G. Operating | Cisco, TX 76437 | Oil & Gas Operator | Mar 2015 |
| 256 | Iva Oil | Cisco, TX 76437 | Oil & Gas Operator | Apr 2024 |
| 257 | J & J Operating | Graford, TX 76449 | Oil & Gas Operator | Apr 2024 |
| 258 | J & J Whiteside Inc. | Comanche, TX 76442 | Oil & Gas Operator | Apr 2024 |
| 259 | J & TG, LLC | Albany, TX 76430 | Oil & Gas Operator | Apr 2024 |
| 260 | J & W Oil Co.-W. F. | Eastland, TX 76448 | Oil & Gas Operator | Apr 2024 |
| 261 | J G Oil & Gas | Albany, TX 76430 | Oil & Gas Operator | Apr 2024 |
| 262 | J R Investments | Cisco, TX 76437 | Oil & Gas Operator | Aug 2003 |
| 263 | J.W.S. | Talpa, TX 76882 | Oil & Gas Operator | Apr 2024 |
| 264 | Jackson Energy Development, Inc. | Cedar Park, TX 78613 | Oil & Gas Operator | Apr 2024 |
| 265 | Jaco, Troy Inc. | Sherman, TX 75091 | Oil & Gas Operator | Apr 2024 |
| 266 | JD Operating | Eastland, TX 76448 | Oil & Gas Operator | Apr 2024 |
| 267 | JD Production Co | Waco, TX 76702 | Oil & Gas Operator | Dec 2009 |
| 268 | JM Investments, L.L.C. | Cross Plains, TX 76443 | Oil & Gas Operator | Apr 2024 |
| 269 | Jobe, B. M. | El Paso, TX 79930 | Oil & Gas Operator | Apr 2024 |
| 270 | Johnson, William D. | Fort Worth, TX 76116 | Oil & Gas Operator | Mar 2008 |
| 271 | Joint Resources Company | Fort Worth, TX 76107 | Oil & Gas Operator | Apr 2024 |
| 272 | Jones Company, LTD. | Albany, TX 76430 | Oil & Gas Operator | May 1999 |
| 273 | Keating Energy, Inc. | Ambler, PA 19002 | Oil & Gas Operator | Apr 2024 |
| 274 | Kennedy, Joseph D. | Stephenville, TX 76401 | Oil & Gas Operator | Jun 1995 |
| 275 | Kerr-McGee Corporation | Dallas, TX 75380 | Oil & Gas Operator | Sep 2023 |
| 276 | Kerr-McGee Oil & Gas Onshore LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2017 |
| 277 | Keystone Operating Co. | Round Rock, TX 78681 | Oil & Gas Operator | Apr 2024 |
| 278 | Killion Well Service Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2014 |
| 279 | Kimble Oil Company, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2006 |
| 280 | King Energy Resources | Kerrville, TX 78029 | Oil & Gas Operator | Apr 2024 |
| 281 | King Oil & Gas Co. | Cisco, TX 76437 | Oil & Gas Operator | Apr 2024 |
| 282 | King Operating Corporation | Pampa, TX 79066 | Oil & Gas Operator | Apr 2024 |
| 283 | Klingberg, Roger | Cross Plains, TX 76443 | Oil & Gas Operator | Jan 2017 |
| 284 | Ko Operating | Merkel, TX 79536 | Oil & Gas Operator | Apr 2024 |
| 285 | Kokomo Energy, Inc. | Gorman, TX 76454 | Oil & Gas Operator | Apr 2024 |
| 286 | Kornye-Tillman Company | Cleburne, TX 76031 | Oil & Gas Operator | Apr 2024 |
| 287 | Kramer, Clifford A. | Wichita Falls, TX 76301 | Oil & Gas Operator | Sep 1997 |
| 288 | KTC Oil Enterprises, LLC | Dallas, TX 75247 | Oil & Gas Operator | Apr 2024 |
| 289 | L.C.S. Production Company | Abilene, TX 79608 | Oil & Gas Operator | Apr 2024 |
| 290 | Langford, G. E. | Abilene, TX 79604 | Oil & Gas Operator | Jan 2002 |
| 291 | Lariat Land & Exploration, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Apr 2024 |
| 292 | Leclair Operating Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Apr 2024 |
| 293 | Leonard Brothers Operating Co. | Fort Worth, TX 76101 | Oil & Gas Operator | Apr 2024 |
| 294 | Lesikar, L. W. | Fort Worth, TX 76121 | Oil & Gas Operator | Jun 2006 |
| 295 | Lillis, Michael D. | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 296 | Limark Corporation | Midland, TX 79702 | Oil & Gas Operator | Dec 2003 |
| 297 | Lone Star Gas Co. | Dallas, TX 75201 | Oil & Gas Operator | Jul 1999 |
| 298 | Lone Star Pipeline Company | Dallas, TX 75201 | Oil & Gas Operator | Jul 1999 |
| 299 | Lone Star Production | Lawn, TX 79530 | Oil & Gas Operator | Apr 2024 |
| 300 | Lowrance Inc. | Eastland, TX 76448 | Oil & Gas Operator | Apr 2024 |