| 24401 | Rincon Oil Co. | | Oil & Gas Operator | Dec 1990 |
| 24402 | Rincon Petroleum Corporation | Corpus Chrsti, TX 78427 | Oil & Gas Operator | Sep 2026 |
| 24403 | Rincon Production Co., Inc. | Farmers BRNCH, TX 75234 | Oil & Gas Operator | Apr 1997 |
| 24404 | Rine Drilling Co | | Oil & Gas Operator | Mar 1994 |
| 24405 | Rine Drillingand Exploration, Inc. | Wichita, KS 67202 | Gas Operator | Dec 2009 |
| 24406 | Rine Exploration | | Oil & Gas Operator | Jul 1994 |
| 24407 | Rine Exploration Co. | | Oil Operator | Jul 1988 |
| 24408 | Ring Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 24409 | Ringer Oil Co Inc | | Oil & Gas Operator | Aug 1989 |
| 24410 | Ringneck Resources, LLC | Tulsa, OK 74135 | Gas Operator | Sep 2025 |
| 24411 | Ringo Rig LLC | Coleman, TX 76834 | Oil & Gas Operator | Sep 2026 |
| 24412 | Rio Blanco Energy, Inc. | Littleton, CO 80121 | Oil & Gas Operator | Oct 2002 |
| 24413 | Rio Blanco Operating LLC | Victoria, TX 77904 | Oil & Gas Operator | Jun 2026 |
| 24414 | Rio Bravo Expl. & Prod. Co. | Houston, TX 77055 | Oil & Gas Operator | Apr 2020 |
| 24415 | Rio Bravo Oil Company | The Woodlands, TX 77381 | Oil & Gas Operator | Feb 2002 |
| 24416 | Rio Bravo Poso | | Oil & Gas Operator | Dec 2009 |
| 24417 | Rio Bravo Production, LLC | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 24418 | Rio Bravo Royalty Co. | Bandera, TX 78003 | Oil & Gas Operator | Aug 2003 |
| 24419 | Rio Chama Petroleum, Inc | Pagosa Springs, CO 81147 | Oil & Gas Operator | Apr 2004 |
| 24420 | Rio Energy | Houston, TX 77067 | Oil Operator | Sep 2026 |
| 24421 | Rio Exploration Company | San Antonio, TX 78209 | Gas Operator | Dec 2005 |
| 24422 | Rio Grand Exploration, LLC | San Antonio, TX 78216 | Oil & Gas Operator | Sep 2026 |
| 24423 | Rio Grande Drilling Company | San Antonio, TX 78212 | Oil & Gas Operator | Dec 1999 |
| 24424 | Rio Grande E&P II, LLC | Houston, TX 77092 | Gas Operator | Sep 2026 |
| 24425 | Rio Interstate Oil, Inc. | Oklahoma City, OK 73189 | Oil & Gas Operator | Sep 1994 |
| 24426 | Rio Mesa Resources Inc | | Oil Operator | Jul 2022 |
| 24427 | Rio O & P LLC | Pasadena, TX 77504 | Oil Operator | Sep 2026 |
| 24428 | Rio Oil And Gas (Permian) II,LLC | The Woodlands, TX 77382 | Oil & Gas Operator | Nov 2024 |
| 24429 | Rio Petroleum, Inc. | Amarillo, TX 79102 | Oil & Gas Operator | Sep 2026 |
| 24430 | Rio Rocky Enterprises, Inc. | Eldorado, TX 76936 | Oil & Gas Operator | Jan 2026 |
| 24431 | Rio VIsta Operating LLC | Eufaula, OK 74432-0789 | Gas Operator | Apr 2026 |
| 24432 | Rio-Tex, Inc. | San Antonio, TX 78258 | Oil & Gas Operator | Sep 2026 |
| 24433 | Ripco | | Oil & Gas Operator | Jul 1986 |
| 24434 | Rippy Branch Oil Co. | Grandfalls, TX 79742 | Oil & Gas Operator | Apr 2022 |
| 24435 | Rippy Oil Company | Tyler, TX 75702 | Oil & Gas Operator | Sep 2026 |
| 24436 | Riptide Energy LLC | Austin, TX 78701 | Oil & Gas Operator | Sep 2026 |
| 24437 | Risco La Sara Operations, LLC | Houston, TX 77056 | Oil & Gas Operator | Aug 2014 |
| 24438 | Rise Petroleum Investments LLC | Tomball, TX 77377 | Oil & Gas Operator | Sep 2026 |
| 24439 | Riseden Services, Inc. | Houston, TX 77256 | Oil & Gas Operator | Sep 1997 |
| 24440 | Riseden, LTD | | Oil & Gas Operator | Nov 1989 |
| 24441 | Risher Company, Inc. | | Oil & Gas Operator | Jul 2001 |
| 24442 | Rising Star 2000 Oil & Gas, Inc. | | Oil Operator | Dec 2024 |
| 24443 | Rising Star Energy Partners II, LLC | Dallas, TX 75219 | Oil & Gas Operator | Sep 2026 |
| 24444 | Rising Star Energy PTR, L.L.C. | Dallas, TX 75219 | Oil & Gas Operator | Jun 2025 |
| 24445 | Rising Star Energy, L.L.C. | Dallas, TX 75219 | Oil & Gas Operator | Aug 2006 |
| 24446 | Rising Star Energy-Oper Co., LLC | | Oil & Gas Operator | Nov 2006 |
| 24447 | Rising Star Petroleum, L.L.C. | Dallas, TX 75219 | Oil & Gas Operator | Apr 2010 |
| 24448 | Rissman Lease Operating | Oklahoma City, OK 73116 | Oil Operator | Dec 1996 |
| 24449 | Ristau Ricky J | Warren, PA 16365-3560 | Oil & Gas Operator | Dec 2025 |
| 24450 | Rister Oil&Gas International LLC | Eastland, TX 76448 | Oil & Gas Operator | Sep 2026 |
| 24451 | Rister, Dewey | Avoca, TX 79503 | Oil & Gas Operator | Sep 2026 |
| 24452 | Ritchie C Stewar | | Oil Operator | Aug 1982 |
| 24453 | Ritchie Explorat | | Oil & Gas Operator | Dec 1996 |
| 24454 | Ritchie Exploration | | Oil Operator | Aug 1995 |
| 24455 | Ritchie Exploration, Inc. | Wichita, KS 67278 | Oil & Gas Operator | May 2026 |
| 24456 | Ritchie Petroleum Corporation, Inc. | Pennsboro, WV 264150000 | Oil & Gas Operator | Dec 2021 |
| 24457 | Ritchie, A. Scott | Wichita, KS 67202 | Oil Operator | Mar 1988 |
| 24458 | Ritchie, H. G. Jr. | Taft, TX 78390 | Oil & Gas Operator | Sep 2026 |
| 24459 | Rittenhouse Oil & Gas Co. | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 24460 | Ritter Properties, LTD. | Fredericksbrg, TX 78624 | Oil & Gas Operator | Sep 2026 |
| 24461 | Ritter, Laber & Associates, Inc. | Williston, ND 58802 | Oil & Gas Operator | Aug 2025 |
| 24462 | River Bend Operating, Inc. | | Oil & Gas Operator | Jul 1999 |
| 24463 | River City Resources, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Nov 1997 |
| 24464 | River Energy Co., Inc. | | Gas Operator | Dec 2012 |
| 24465 | River Gas Co | Marietta, OH 45750 | Oil & Gas Operator | Dec 1993 |
| 24466 | River Gas Corporation | Tuscaloosa, AL 35406-2233 | Gas Operator | Dec 2000 |
| 24467 | River Gas Of Utah Inc | Northport, AL 35476 | Gas Operator | Feb 1995 |
| 24468 | River Ridge Gravel Co | Meadville, PA 16335-9149 | Oil Operator | Dec 2025 |
| 24469 | River Road Production, LLC | Hays, KS 67601 | Oil Operator | Feb 1997 |
| 24470 | River Rock Operating LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2026 |
| 24471 | River Rouge Minerals | | Oil & Gas Operator | Dec 2024 |
| 24472 | River Rouge Minerals Inc | | Oil & Gas Operator | Mar 1981 |
| 24473 | River Valley Energy Inc | Little Hocking, OH 45742 | Oil & Gas Operator | Dec 2025 |
| 24474 | River Valley Oil LLC | Konawa, OK 74849 | Oil Operator | Jul 2026 |
| 24475 | Riverbirch Resources, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Sep 2026 |
| 24476 | Rivercity Operating, Inc. | Austin, TX 78766 | Oil & Gas Operator | Sep 2026 |
| 24477 | Riverfront Exploration LLC | Fort Smith, AR 72901 | Gas Operator | Jun 2026 |
| 24478 | Riveria Drilling | | Oil Operator | Aug 1984 |
| 24479 | Riverine, L.C. | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2021 |
| 24480 | Rivershore Operating LLC | Dallas, TX 75206 | Oil & Gas Operator | Sep 2026 |
| 24481 | Riverside Energy Michigan LLC | | Oil & Gas Operator | Jun 2026 |
| 24482 | Riverside Oil & Gas, Inc | Burkesville, KY 42717 | Oil & Gas Operator | Dec 2023 |
| 24483 | Riverside Petrol | | Oil Operator | Sep 1995 |
| 24484 | Riverside Petroleum & Prod. | Oxford, MS 38655 | Oil & Gas Operator | Dec 2023 |
| 24485 | Riverside Resources, Inc. | | Oil & Gas Operator | Oct 2015 |
| 24486 | Riverstone Energy LLC | Seminole, OK 74868 | Oil & Gas Operator | Jul 2026 |
| 24487 | Riverstone Energy Operating, LLC | Houston, TX 77090 | Oil & Gas Operator | Sep 2026 |
| 24488 | Riverwood Production Co., Inc. | | Oil & Gas Operator | Nov 1990 |
| 24489 | Rives Owen H | Holdenville, OK 74848-0913 | Oil & Gas Operator | Nov 2000 |
| 24490 | Riviera Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2026 |
| 24491 | Rixleben Jeffrey | West Chicago, IL 60186-0978 | Oil Operator | Feb 2016 |
| 24492 | Rixleben Thomas B Estate | Ada, OK 74820 | Oil & Gas Operator | Mar 2014 |
| 24493 | RJ Energy, LLC | Garnett, KS 66032 | Oil Operator | May 2026 |
| 24494 | RJ Schreiner SR | Freedom, PA 15042-9353 | Oil & Gas Operator | Dec 2015 |
| 24495 | RJ VIsion Operating | | Oil Operator | Mar 2026 |
| 24496 | RJ Williams Oil & Gas LLC | Ardmore, OK 73401 | Oil & Gas Operator | Jul 2026 |
| 24497 | Rja Energy LLC | Norman, OK 73069-8224 | Oil & Gas Operator | Jul 2026 |
| 24498 | RJD Management Co., Inc. | Lubbock, TX 79408 | Oil & Gas Operator | Sep 2026 |
| 24499 | RJKB Foster Operating LLC | Cisco, TX 76437 | Oil & Gas Operator | Sep 2026 |
| 24500 | RJM Company | Claflin, KS 67525 | Oil & Gas Operator | May 2026 |