| 201 | JGC Oil Co. | Austin, TX 78732 | Oil & Gas Operator | Mar 2025 |
| 202 | JHC Oil & Gas Inc | Fulshear, TX 77441 | Oil Operator | Mar 2025 |
| 203 | JHP Operating, LLC | Dallas, TX 75225 | Oil & Gas Operator | Mar 2025 |
| 204 | JHS Energy, Inc | Denver, CO 80222 | Oil & Gas Operator | Nov 2024 |
| 205 | JHS Oilfield Services LLC | Dallas, TX 75206 | Oil Operator | Mar 2025 |
| 206 | Ji Energy LLC | Midland, TX 79707 | Gas Operator | Mar 2025 |
| 207 | Jiahe Energy, LLC | Katy, TX 77450 | Gas Operator | Mar 2025 |
| 208 | Jil Oil Corp. | San Antonio, TX 78279 | Oil & Gas Operator | Mar 2025 |
| 209 | Jilpetco, Inc. | Fort Worth, TX 76121 | Oil & Gas Operator | Mar 2025 |
| 210 | Jim Production | Jacksboro, TX 76458 | Oil & Gas Operator | Jan 2010 |
| 211 | Jim-Bob Oil Company | San Angelo, TX 76901 | Oil & Gas Operator | Dec 2003 |
| 212 | Jimco Energy Inc. | Stockdale, TX 78160 | Oil & Gas Operator | Mar 2025 |
| 213 | Jimco Oil Company, Inc. | Electra, TX 76360 | Oil & Gas Operator | Jun 2019 |
| 214 | Jin Petroleum LLC | New Braunfels, TX 78130 | Oil Operator | Mar 2025 |
| 215 | Jip Rock, LLC | Shamrock, TX 79079 | Oil & Gas Operator | Mar 2025 |
| 216 | Jiro | Stinnett, TX 79083 | Oil & Gas Operator | Mar 2025 |
| 217 | JJ Operations, Inc. | Lubbock, TX 79464 | Oil & Gas Operator | Mar 2025 |
| 218 | JJ Production | Freer, TX 78357 | Oil & Gas Operator | Mar 2025 |
| 219 | JJB Operating Co. | Mineral Wells, TX 76068 | Oil & Gas Operator | Mar 2025 |
| 220 | Jjes, Inc. | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 221 | JJH Energy Company | Odessa, TX 79765 | Gas Operator | Mar 2025 |
| 222 | JJH Prod. Co. | Roby, TX 79543 | Oil & Gas Operator | Mar 2025 |
| 223 | JJRS Investments Inc. | Corpus Chrsti, TX 78409 | Oil & Gas Operator | Mar 2025 |
| 224 | JKJ Oil Company | Austin, TX 78746 | Oil & Gas Operator | Jun 2007 |
| 225 | JKW Energy Division | Abilene, TX 79608 | Oil & Gas Operator | Aug 2010 |
| 226 | JL Resources, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Mar 2025 |
| 227 | JL&M Energy, LLC | Wichita Falls, TX 76308 | Oil Operator | Mar 2025 |
| 228 | Jla Resources Company | Austin, TX 78746 | Oil & Gas Operator | Mar 2025 |
| 229 | JLR Energy | Olney, TX 76374 | Oil & Gas Operator | Dec 2003 |
| 230 | JLW Operations, LLC | Lubbock, TX 79493 | Oil Operator | Mar 2025 |
| 231 | JM Calk Operating, LLC | Lytle, TX 78052 | Oil Operator | Mar 2025 |
| 232 | JM Cox Resources LP | Midland, TX 79702 | Oil & Gas Operator | Apr 2019 |
| 233 | JM Energy, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 2020 |
| 234 | JM Investments, L.L.C. | Cross Plains, TX 76443 | Oil & Gas Operator | Mar 2025 |
| 235 | Jma Energy Co Of Texas, L.L.C. | Oklahoma City, OK 73118 | Oil & Gas Operator | Mar 2010 |
| 236 | Jmar Petroleum LLC | McLean, TX 79057 | Gas Operator | Mar 2025 |
| 237 | JMC Resources Corp. | Houston, TX 77077 | Oil & Gas Operator | Mar 2025 |
| 238 | JMD Resources Inc | Belot, OH 44609 | Oil & Gas Operator | Dec 2015 |
| 239 | JMH Production, LLC | Archer City, TX 76351 | Oil & Gas Operator | Mar 2025 |
| 240 | JMK Petroleum Corp. | Dallas, TX 75251 | Oil & Gas Operator | Jun 2006 |
| 241 | JMM Energy LLC | Brownsville, TX 78521 | Oil & Gas Operator | Mar 2025 |
| 242 | JMW Resources, Inc. | Midland, TX 79701 | Oil & Gas Operator | Mar 2025 |
| 243 | JN Exploration & Production LP | Billings, MT 59103 | Oil & Gas Operator | Jan 2001 |
| 244 | JNC Resources Company | Tulsa, OK 74119 | Gas Operator | May 1999 |
| 245 | JNK Energy Corporation | Iowa Park, TX 76367 | Oil Operator | Mar 2025 |
| 246 | JNS Production, LLC | Albany, TX 76430 | Oil Operator | Mar 2025 |
| 247 | Jo Mill Oil Company LLC | Fort Worth, TX 76132 | Oil & Gas Operator | Mar 2025 |
| 248 | Jobe, B. M. | El Paso, TX 79930 | Oil & Gas Operator | Mar 2025 |
| 249 | Joe Kestner, L.L.C. | Corpus Chrsti, TX 78410 | Oil & Gas Operator | Feb 2016 |
| 250 | Joe R. Cheatham Oil Company | Lockhart, TX 78644 | Oil Operator | Mar 2025 |
| 251 | Johanson Oil | La Vernia, TX 78121 | Oil Operator | Dec 2023 |
| 252 | John P. Bogdanich Operating, LLC | Kilgore, TX 75663 | Oil Operator | Mar 2025 |
| 253 | Johnco Petroleum, Inc. | Granbury, TX 76048 | Oil & Gas Operator | Mar 2008 |
| 254 | Johnson & Ernst Operating Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2018 |
| 255 | Johnson & Lindley, Inc. | Houston, TX 77227 | Oil & Gas Operator | May 2013 |
| 256 | Johnson & Lindley, LLC | Houston, TX 77227 | Oil & Gas Operator | Mar 2025 |
| 257 | Johnson & Morris | Voss, TX 76888 | Oil & Gas Operator | Mar 2025 |
| 258 | Johnson And Price | Midland, TX 79702 | Oil & Gas Operator | Dec 1995 |
| 259 | Johnson Brothers | Morse, TX 79062 | Oil & Gas Operator | Mar 2025 |
| 260 | Johnson Brothers Oil | Bigfoot, TX 78005 | Oil & Gas Operator | Mar 2025 |
| 261 | Johnson Resources, Inc. | Corpus Chrsti, TX 78460 | Oil & Gas Operator | Oct 2011 |
| 262 | Johnson Royalties, Inc. | Austin, TX 78729 | Oil & Gas Operator | Jul 2002 |
| 263 | Johnson Sanford Op Co., LTD | Leander, TX 78641 | Oil & Gas Operator | Mar 2025 |
| 264 | Johnson, Charles | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 265 | Johnson, Tom E. | Midland, TX 79702 | Oil & Gas Operator | Jun 2008 |
| 266 | Johnson, William D. | Fort Worth, TX 76116 | Oil & Gas Operator | Mar 2008 |
| 267 | Johnston & Owen | Tyler, TX 75710 | Oil & Gas Operator | Oct 1997 |
| 268 | Joiner, Pat | Wichita Falls, TX 76302 | Oil & Gas Operator | Mar 2025 |
| 269 | Joint Resources Company | Fort Worth, TX 76107 | Oil & Gas Operator | Mar 2025 |
| 270 | Jojon Petroleum Company | Dallas, TX 75219 | Oil & Gas Operator | Dec 2024 |
| 271 | Jolen Operating Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2024 |
| 272 | Jonco | Jacksboro, TX 76458 | Oil & Gas Operator | Mar 2025 |
| 273 | Jones & Whittington Oil Co. | Coleman, TX 76834 | Oil & Gas Operator | Feb 2004 |
| 274 | Jones Company, LTD. | Albany, TX 76430 | Oil & Gas Operator | May 1999 |
| 275 | Jones Energy LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Dec 2024 |
| 276 | Jones Energy, LTD. | Austin, TX 78746 | Oil & Gas Operator | Sep 2013 |
| 277 | Jones Operating Company | Levelland, TX 79336 | Oil & Gas Operator | Oct 2000 |
| 278 | Jones, Carl W. Operator | Shreveport, LA 71106 | Oil & Gas Operator | Jul 1999 |
| 279 | Jones, Charles E., Jr. | Odessa, TX 79760 | Oil & Gas Operator | Jul 2013 |
| 280 | Jones, Edwin M. Oil Co. | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2025 |
| 281 | Jones, J. Vernon Oil Company | Midland, TX 79708 | Oil & Gas Operator | Mar 2008 |
| 282 | Jones, Jansen M. | Albany, TX 76430 | Oil & Gas Operator | Jul 2009 |
| 283 | Jones, John E. | Friendswood, TX 77546 | Oil Operator | May 2016 |
| 284 | Jones, Johnny G. | Midland, TX 79708 | Oil & Gas Operator | Feb 2000 |
| 285 | Jones, L. E. Operating, Inc. | Duncan, OK 73534 | Oil & Gas Operator | Mar 2025 |
| 286 | Jones, L. E. Production Co. | Duncan, OK 73534 | Oil & Gas Operator | Jul 2014 |
| 287 | Jones, R. W. & Co., LTD. | Oklahoma City, OK 73132 | Oil & Gas Operator | Mar 1997 |
| 288 | Jones, R.W. & Co. II, LTD. | Edmond, OK 73034 | Oil & Gas Operator | Sep 2010 |
| 289 | Jones, Skeet Lee | Mentone, TX 79754 | Oil & Gas Operator | Mar 2025 |
| 290 | Joplin Oil Co., Inc. | Lubbock, TX 79423 | Oil & Gas Operator | Mar 2025 |
| 291 | Jordan Development Company LLC | Traverse City, MI 49686 | Oil & Gas Operator | Dec 2024 |
| 292 | Jordan Drilling Co. | Leggett, TX 77350 | Oil & Gas Operator | Aug 1998 |
| 293 | Jordan Engineering, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Mar 2025 |
| 294 | Jordan Oil Company, Inc. | Lake Charles, LA 70602 | Oil & Gas Operator | Dec 2018 |
| 295 | Jordan Properties | Kilgore, TX 75663 | Oil & Gas Operator | Aug 2003 |
| 296 | Josey Oil Company | Houston, TX 77019 | Oil & Gas Operator | Jul 2006 |
| 297 | Josey Oil Company, LTD. | Houston, TX 77019 | Oil & Gas Operator | Mar 2025 |
| 298 | Josey, Lenoir M., Inc. | Houston, TX 77019 | Oil & Gas Operator | Aug 2003 |
| 299 | Journey Oil, LLC | Cary, NC 27513 | Oil Operator | Mar 2025 |
| 300 | Journey Operating, L.L.C. | Sugar Land, TX 77496 | Oil & Gas Operator | Aug 2006 |