| 9401 | Reilly, K. L. | Huntsville, TX 77342 | Oil Operator | Dec 2004 |
| 9402 | Rein Pusher Operating LLC | Brenham, TX 77834 | Oil & Gas Operator | Feb 2026 |
| 9403 | Reinecke Operating, LLC | Houston, TX 77024 | Oil & Gas Operator | Nov 2018 |
| 9404 | Reliance Energy, Inc. | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 9405 | Reliance Oil And Gas, Inc. | Austin, TX 78748 | Oil Operator | Jun 2012 |
| 9406 | Reliance Operating Company | Midland, TX 79702 | Oil & Gas Operator | Feb 2000 |
| 9407 | Reliance Trusts | Dallas, TX 75244 | Oil & Gas Operator | Nov 1995 |
| 9408 | Reliant Exploration, LTD. | Houston, TX 77060 | Oil & Gas Operator | Sep 2002 |
| 9409 | Remarkable Operating Co. | Pampa, TX 79065 | Gas Operator | Jul 2019 |
| 9410 | Remco Oil & Gas Production,Inc. | Rio Grande Ci, TX 78582 | Oil & Gas Operator | Nov 2021 |
| 9411 | Remington Oil | South Bend, TX 76481 | Oil & Gas Operator | Mar 2008 |
| 9412 | Remnant Energy, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Feb 2026 |
| 9413 | Remnant Oil Operating, LLC | Midland, TX 79704 | Oil & Gas Operator | Jul 2024 |
| 9414 | Remo, Inc. | Odessa, TX 79760 | Oil & Gas Operator | May 2003 |
| 9415 | Remora Management, LLC | The Woodlands, TX 77382 | Oil & Gas Operator | Feb 2026 |
| 9416 | Remora Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Feb 2026 |
| 9417 | Remuda Operating Company | Midland, TX 79711 | Oil & Gas Operator | Feb 2026 |
| 9418 | Renaissance Petroleum Co LLC | Houston, TX 77058 | Oil & Gas Operator | Nov 2011 |
| 9419 | Renaud Oil Corporation | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 9420 | Rendova Oil Company, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 2002 |
| 9421 | Reneau Oil Co. | Shamrock, TX 79079 | Oil & Gas Operator | Feb 2026 |
| 9422 | Reneau, James R. | Shamrock, TX 79079 | Gas Operator | Oct 2001 |
| 9423 | Reneau, James Seed Co. | Shamrock, TX 79079 | Oil & Gas Operator | Feb 2026 |
| 9424 | Reneau, Nelda York | Snyder, TX 79549 | Oil & Gas Operator | Feb 2026 |
| 9425 | Renegade Operating Company | Aurora, CO 80016 | Oil & Gas Operator | Aug 2023 |
| 9426 | Renegade Operating Company, LLC | Abilene, TX 79608 | Oil Operator | Oct 2006 |
| 9427 | Renuergy LLC | Houston, TX 77024 | Oil & Gas Operator | Jan 2024 |
| 9428 | Reo Operating LLC | Austin, TX 78747 | Oil & Gas Operator | Feb 2026 |
| 9429 | Reostar Operating Incorporated | Fort Worth, TX 76107 | Oil & Gas Operator | Sep 2012 |
| 9430 | Repsol Oil & Gas USA, LLC | The Woodlands, TX 77381 | Oil & Gas Operator | Feb 2026 |
| 9431 | Republic Energy Inc. | Decatur, TX 76234 | Oil & Gas Operator | Dec 2016 |
| 9432 | Republic Energy Operating, LLC | Decatur, TX 76234 | Oil & Gas Operator | Jan 2016 |
| 9433 | Republic Resources, LLC. | San Antonio, TX 78212 | Oil & Gas Operator | Feb 2026 |
| 9434 | Resaca Operating Company | Houston, TX 77010 | Oil & Gas Operator | Sep 2013 |
| 9435 | Resaca Resources, L.L.C. | Austin, TX 78746 | Oil & Gas Operator | Feb 2026 |
| 9436 | Research Exploration, LLC | Kingwood, TX 77339 | Oil & Gas Operator | Feb 2018 |
| 9437 | Reserve Acquisition Group | Tulsa, OK 74153 | Oil & Gas Operator | Dec 1993 |
| 9438 | Reserve Management, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Feb 2026 |
| 9439 | Reserve Operating Corp. | Houston, TX 77040 | Oil & Gas Operator | Feb 2026 |
| 9440 | Reserve Production, Inc. | Tyler, TX 75713 | Oil & Gas Operator | Mar 2008 |
| 9441 | Residual Flow Operating, LLC | | Oil Operator | Feb 2026 |
| 9442 | Resolute Natural Res. Co., LLC | Midland, TX 79706 | Oil & Gas Operator | Feb 2026 |
| 9443 | Resolute Natural Resources Co., LLC | Denver, CO 80203 | Oil & Gas Operator | Feb 2017 |
| 9444 | Resource Expl & Prod, Inc. | Salado, TX 76571 | Oil & Gas Operator | Feb 2026 |
| 9445 | Resource Management Company | Fredericksbrg, TX 78624 | Oil & Gas Operator | Feb 2015 |
| 9446 | Resource Oil And Gas, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Feb 2026 |
| 9447 | Resource Operating Company | Abilene, TX 79601 | Oil & Gas Operator | Jul 1997 |
| 9448 | Ress Production Co. | Farmington, NM 87499 | Oil & Gas Operator | Feb 2026 |
| 9449 | Restoration Energy LLC | Amarillo, TX 79124 | Oil & Gas Operator | Feb 2026 |
| 9450 | Restore Operating LLC | Andrews, TX 79714 | Oil & Gas Operator | Feb 2026 |
| 9451 | Retama Oil Corporation | Uvalde, TX 78801 | Oil & Gas Operator | Feb 2026 |
| 9452 | Retamco Operating Inc | Red Lodge, MT 59068 | Oil & Gas Operator | Nov 2025 |
| 9453 | Retriever Operating LLC | Midland, TX 79704 | Oil & Gas Operator | Feb 2026 |
| 9454 | Reunion Energy Company | Houston, TX 77056 | Oil & Gas Operator | May 1996 |
| 9455 | Revard Petroleum, L.L.C. | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2026 |
| 9456 | Reveille Resources | Houston, TX 77084 | Oil & Gas Operator | Apr 2011 |
| 9457 | Reveille Resources (Texas), Inc. | Houston, TX 77084 | Oil & Gas Operator | Jan 2013 |
| 9458 | Revelation Oil & Gas LLC | Dumas, TX 79029 | Oil & Gas Operator | Feb 2026 |
| 9459 | Reverence Operating LLC | Odessa, TX 79768 | Oil & Gas Operator | Feb 2026 |
| 9460 | Revier Resources Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2005 |
| 9461 | Revier, J. B. Prod. Company | Wichita Falls, TX 76302 | Oil & Gas Operator | Apr 1996 |
| 9462 | Revilo Exploration, Inc. | Richardson, TX 75081 | Oil & Gas Operator | Jul 2021 |
| 9463 | Revolution Operating Company,LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jul 2024 |
| 9464 | Rex Energy Operating Corp. | State College, PA 16801 | Oil & Gas Operator | Jun 2012 |
| 9465 | Rex Oil, A Texas Partnership | Hondo, TX 78861 | Oil & Gas Operator | May 2003 |
| 9466 | Rexcom, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Feb 2026 |
| 9467 | Reynolds Drilling Co., Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Feb 2026 |
| 9468 | Reynolds E & P, Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Feb 2026 |
| 9469 | Reynolds, E. P., Jr. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 9470 | Reynolds, J. C. & W. F. | Wichita Falls, TX 76301 | Oil & Gas Operator | Feb 2026 |
| 9471 | Reynolds, Richard | Seymour, TX 76380 | Oil & Gas Operator | Mar 2008 |
| 9472 | Rfe Operating, LLC | Tyler, TX 75703 | Oil & Gas Operator | Feb 2026 |
| 9473 | RGX Energy LLC | Plano, TX 75025 | Oil & Gas Operator | Oct 2019 |
| 9474 | RHB Exploration & Production,LLC | Grapevine, TX 76099 | Oil & Gas Operator | Feb 2026 |
| 9475 | RHC Energy (USA) LLC | Houston, TX 77027 | Oil Operator | Feb 2026 |
| 9476 | Rheaco Oil Company, LTD. | Sourlake, TX 77659 | Oil Operator | Feb 2026 |
| 9477 | Rheata Resources, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 9478 | Rhodes Disposal, Inc. | Bryson, TX 76427 | Oil Operator | Feb 2026 |
| 9479 | Rhodes Drilling Company | Abilene, TX 79608 | Oil & Gas Operator | Sep 2000 |
| 9480 | Rhombus Operating Co., LTD | Littleton, CO 80160 | Oil & Gas Operator | Dec 2025 |
| 9481 | Rhonda Operating Company | Midland, TX 79710 | Oil & Gas Operator | Aug 2017 |
| 9482 | RHR Oil & Gas, LLC | Fort Worth, TX 76107 | Oil Operator | Feb 2026 |
| 9483 | Rhyne, J.V. | Cisco, TX 76437 | Oil & Gas Operator | Feb 2026 |
| 9484 | Ria Mia Corporation | San Antonio, TX 78230 | Oil & Gas Operator | Apr 2011 |
| 9485 | Rialto Oil & Gas Corporation | Houston, TX 77098 | Oil & Gas Operator | Oct 2012 |
| 9486 | Riata Energy, Inc. | Oklahoma City, OK 73101 | Oil & Gas Operator | Nov 2006 |
| 9487 | Ric Petroleum, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2003 |
| 9488 | Rice Drilling Company | Santa Anna, TX 76878 | Oil & Gas Operator | Feb 2026 |
| 9489 | Rice, James D. | Santa Anna, TX 76878 | Oil & Gas Operator | Sep 2007 |
| 9490 | Richard C. Bellows Family Trust | George West, TX 78022 | Oil Operator | Feb 2026 |
| 9491 | Richard'S Texas Tea | Rockdale, TX 76567 | Oil Operator | Feb 2026 |
| 9492 | Richards, Michael Dewain | Graham, TX 76450 | Oil & Gas Operator | Apr 2011 |
| 9493 | Richards, Tot Dozer, Inc. | Throckmorton, TX 76483 | Oil & Gas Operator | May 2013 |
| 9494 | Richards, Tot Oil Co. | Abilene, TX 79601 | Oil & Gas Operator | Feb 2026 |
| 9495 | Richardson Oil Company | San Antonio, TX 78216 | Oil & Gas Operator | Aug 2003 |
| 9496 | Richardson Operating Company | Denver, CO 80237 | Oil & Gas Operator | Nov 2025 |
| 9497 | Richardson Resources Inc | Brownwood, TX 76804 | Oil & Gas Operator | Feb 2026 |
| 9498 | Richardson, Bud II | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 9499 | Richardson, Marshall T. | Midfield, TX 77458 | Oil & Gas Operator | Feb 2026 |
| 9500 | Richey Operating, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Feb 2026 |