| 9301 | Robert T. Epperson Prod Co, LLC | Tyler, TX 75713 | Gas Operator | Dec 2017 |
| 9302 | Roberts & Hammack, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Jun 2026 |
| 9303 | Roberts & Murphy, Inc. | Shreveport, LA 71137 | Oil & Gas Operator | Apr 2016 |
| 9304 | Roberts & Roberts Enterprise,Inc | Levelland, TX 79336 | Oil & Gas Operator | Jun 1996 |
| 9305 | Robertson Resources, Inc. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Jun 2026 |
| 9306 | Robertson, French M. Oil Co. | Abilene, TX 79608 | Oil & Gas Operator | Mar 1995 |
| 9307 | Robertson, Gene Oil Co. | Burkburnett, TX 76354 | Oil & Gas Operator | Jul 1998 |
| 9308 | Robertson, T. L. Operating Co. | Cross Plains, TX 76443 | Oil & Gas Operator | May 2004 |
| 9309 | Robertson-Bryce Management, LLC | Tyler, TX 75701 | Oil & Gas Operator | Jun 2026 |
| 9310 | Robin Of Perryton Corporation | Perryton, TX 79070 | Oil & Gas Operator | Jun 2026 |
| 9311 | Robin Of Perryton, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Dec 1995 |
| 9312 | Robin, Jack, Co. | Corpus Christ, TX 78410 | Oil & Gas Operator | Dec 2017 |
| 9313 | Robinett Resources Inc. | Longview, TX 75601 | Oil & Gas Operator | Dec 1999 |
| 9314 | Robinson Drilling Of Texas | Big Spring, TX 79721 | Oil & Gas Operator | Oct 1996 |
| 9315 | Robinson Oil & Gas, Inc. | Chico, TX 76431 | Oil & Gas Operator | Aug 2003 |
| 9316 | Robinson Oil Co. | Graham, TX 76450 | Oil & Gas Operator | Jun 2026 |
| 9317 | Robinson Operating Company | Abilene, TX 79604 | Oil & Gas Operator | Aug 2012 |
| 9318 | Robinson, Irvin | Abilene, TX 79608 | Oil & Gas Operator | May 1999 |
| 9319 | Robuck Petroleum, LLC | Nacogdoches, TX 75965 | Oil & Gas Operator | Jun 2026 |
| 9320 | Roc Energy, Inc. | Midland, TX 79710 | Oil & Gas Operator | Feb 2013 |
| 9321 | Roc Operating, Inc. | Plano, TX 75093 | Oil & Gas Operator | Oct 2008 |
| 9322 | Roca Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jun 2026 |
| 9323 | Roca Production, Inc. | Fort Worth, TX 76107 | Oil & Gas Operator | Jun 2026 |
| 9324 | Roca Resource Company, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 9325 | Rocanville Corporation | Dallas, TX 75225 | Oil & Gas Operator | Dec 2016 |
| 9326 | Rocc Oil & Gas, L.P. | Houston, TX 77084 | Oil & Gas Operator | Apr 2024 |
| 9327 | Rocc Operating, LLC | Houston, TX 77084 | Oil & Gas Operator | Jun 2026 |
| 9328 | Rocinante | Houston, TX 77058 | Oil Operator | Jun 2026 |
| 9329 | Rock Bottom Oil, GP, L.L.C. | Nacogdoches, TX 75963 | Oil & Gas Operator | Jun 2026 |
| 9330 | Rock Creek Oil Co. | Iowa Park, TX 76367 | Oil Operator | Mar 2008 |
| 9331 | Rock Creek Oil, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Nov 2019 |
| 9332 | Rock Fish Operating LLC | McKinney, TX 75070 | Oil & Gas Operator | Jun 2026 |
| 9333 | Rock Hill Operating | Burkburnett, TX 76354 | Oil & Gas Operator | Jun 2026 |
| 9334 | Rock Oil Resources LLC | Titusville, PA 16354 | Oil Operator | Dec 2025 |
| 9335 | Rock Operating | Abilene, TX 79608 | Oil & Gas Operator | Jun 2026 |
| 9336 | Rock Petroleum, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2025 |
| 9337 | Rock Resources, Inc. | Corpus Chrsti, TX 78414 | Oil & Gas Operator | Jun 2026 |
| 9338 | Rock Solid Operating, LLC | Southlake, TX 76092 | Oil Operator | Sep 2021 |
| 9339 | Rock Well Petroleum (U.S.), Inc. | Canada, 00100 | Oil & Gas Operator | Sep 2014 |
| 9340 | Rockbridge Oil & Gas | Houston, TX 77027 | Oil & Gas Operator | Mar 1990 |
| 9341 | Rockbridge Oil And Gas, Inc. | Houston, TX 77227 | Oil & Gas Operator | Nov 1997 |
| 9342 | Rockcliff Energy Operating III LLC | Houston, TX 77002 | Oil & Gas Operator | Jun 2026 |
| 9343 | Rockcliff Energy Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Jun 2026 |
| 9344 | Rockdale Energy, LLC | Houston, TX 77024 | Oil & Gas Operator | Dec 2020 |
| 9345 | Rockdale Resources Corporation | Houston, TX 77024 | Oil Operator | Jul 2016 |
| 9346 | Rockefeller Hughes (USA) LLC | Houston, TX 77027 | Oil & Gas Operator | Jul 2015 |
| 9347 | Rocker A Operating Company | Post, TX 79356 | Oil & Gas Operator | Aug 2022 |
| 9348 | Rocker B Production, L.L.C. | Graham, TX 76450 | Gas Operator | Aug 2025 |
| 9349 | Rockford Energy Partners II, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2007 |
| 9350 | Rockford Energy Partners III,LLC | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2012 |
| 9351 | Rockford Panhandle, LLC | Tulsa, OK 74105 | Oil & Gas Operator | Sep 2008 |
| 9352 | Rockin C Production, L.L.C. | Nocona, TX 76255 | Oil Operator | May 2025 |
| 9353 | Rockin' D, LLC | Big Spring, TX 79720 | Oil & Gas Operator | Mar 2024 |
| 9354 | Rockin' H Resources LLC | Alice, TX 78332 | Oil & Gas Operator | Jun 2026 |
| 9355 | Rocking Lazy Little B Ranch Oil | Cedar Creek, TX 78612 | Oil Operator | Apr 2011 |
| 9356 | Rocking R Investments, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Jun 2026 |
| 9357 | Rocking, R, Drilling & Prod Co. | Bowie, TX 76230 | Oil & Gas Operator | Jun 2026 |
| 9358 | Rockland Oil Company | Addison, TX 75001 | Oil & Gas Operator | Feb 2026 |
| 9359 | Rockoil Energy Of Texas, Inc. | Weatherford, TX 76086 | Oil & Gas Operator | Jun 2026 |
| 9360 | Rockport Energy Solutions LLC | Austin, TX 78730 | Oil & Gas Operator | Jun 2026 |
| 9361 | Rockport Georgetown Holdings,LP | Bellaire, TX 77401 | Oil & Gas Operator | Nov 2007 |
| 9362 | Rocksprings Energy Company LLC | Houston, TX 77057 | Oil & Gas Operator | Dec 1997 |
| 9363 | Rockstar Production, LLC | Graham, TX 76450 | Oil Operator | Jun 2026 |
| 9364 | Rockstar Resources, LLC | Sourlake, TX 77659 | Oil & Gas Operator | Jun 2026 |
| 9365 | Rockwall Marketing Corporation | Benbrook, TX 76126 | Oil & Gas Operator | Dec 2007 |
| 9366 | Rockwell Energy Corporation | Tulsa, OK 74105 | Oil & Gas Operator | Apr 2014 |
| 9367 | Rockwell Energy, LLC | Spring, TX 77386 | Oil & Gas Operator | Sep 2014 |
| 9368 | Rockwood Resources Inc | Coleman, TX 76834 | Oil & Gas Operator | Jun 2026 |
| 9369 | Rocky Creek Resources, LLC | Houston, TX 77055 | Oil & Gas Operator | Mar 2025 |
| 9370 | Rocky Point Oil, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jun 2026 |
| 9371 | Roco Petroleum, Incorporated | Abilene, TX 79605 | Oil & Gas Operator | Jun 2026 |
| 9372 | Rocoso Resources, LLC | Albany, TX 76430 | Oil & Gas Operator | Jun 2026 |
| 9373 | Rod Oil & Gas LTD. | Houston, TX 77261 | Oil & Gas Operator | Jun 1995 |
| 9374 | Rod, Inc. | Coleman, TX 76834 | Oil & Gas Operator | Mar 2008 |
| 9375 | Rodan, Inc. | Wink, TX 79789 | Oil & Gas Operator | Jun 2026 |
| 9376 | Rodel Oil & Gas Company | Houston, TX 77218 | Oil & Gas Operator | Jun 2026 |
| 9377 | Roden Oil Company | Midland, TX 79702 | Oil & Gas Operator | Feb 2008 |
| 9378 | Rodenberg, Laura Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Jun 2026 |
| 9379 | Rodeo Resources, L.L.C. | Houston, TX 77079 | Oil & Gas Operator | Dec 2024 |
| 9380 | Rodessa Management, Inc. | Longview, TX 75606 | Oil & Gas Operator | May 1995 |
| 9381 | Rodessa Operating Company | Corpus Chrsti, TX 78426 | Oil & Gas Operator | Jun 2026 |
| 9382 | Rodgers, William L. | Fort Worth, TX 76147 | Oil & Gas Operator | Jan 1995 |
| 9383 | Rodman Petroleum Corp. | Odessa, TX 79768 | Oil & Gas Operator | Jul 2023 |
| 9384 | Roemer Oil Company | Denver, CO 80202 | Oil & Gas Operator | Nov 1998 |
| 9385 | Roemer, David E. | Somerset, TX 78069 | Oil Operator | Jun 2026 |
| 9386 | Roff Operating Company LLC | Houston, TX 77002 | Oil & Gas Operator | Jun 2026 |
| 9387 | Rog Enterprises, Inc. | Lake Dallas, TX 75065 | Oil Operator | May 2014 |
| 9388 | Rog Enterprises, LLC | Burkburnett, TX 76354 | Oil Operator | Jun 2026 |
| 9389 | Rogers Drilling Co. | Olney, TX 76374 | Oil & Gas Operator | Jun 2026 |
| 9390 | Rogers Oilfield Op, Corp. | Granbury, TX 76048 | Oil & Gas Operator | Jul 2019 |
| 9391 | Rogers, M. L. | Midland, TX 79701 | Oil & Gas Operator | Sep 2014 |
| 9392 | Rogers, Mike Drilling Co., Inc. | Magnolia, AR 71754 | Oil & Gas Operator | Sep 2002 |
| 9393 | Rogers, S. K. Oil, Inc. | Lubbock, TX 79424 | Oil & Gas Operator | Jun 2026 |
| 9394 | Rohmer Brother'S | Muenster, TX 76252 | Oil & Gas Operator | May 2014 |
| 9395 | Rohmer Resources LP | Muenster, TX 76252 | Oil Operator | Jun 2026 |
| 9396 | Rohmer, A. J. | Muenster, TX 76252 | Oil & Gas Operator | Apr 1997 |
| 9397 | Rohmer, Tony S. | Muenster, TX 76252 | Oil & Gas Operator | Sep 2015 |
| 9398 | Rohmer, William J. | Muenster, TX 76252 | Oil & Gas Operator | Dec 2011 |
| 9399 | Roil Mineral & Land Co. | Dallas, TX 75379 | Oil & Gas Operator | Jun 2026 |
| 9400 | Roil Production Company | Houston, TX 77056 | Gas Operator | Sep 2005 |