| 24401 | Riggins Energy Inc. | Vernon, TX 76385 | Oil & Gas Operator | Jul 2004 |
| 24402 | Riggs Petroleum Company | Graham, TX 76450 | Oil & Gas Operator | Sep 2024 |
| 24403 | Riggs, Don R. | San Antonio, TX 78270 | Oil & Gas Operator | Aug 2003 |
| 24404 | Riley & Scott Gas Co | Pikeville, KY 41502 | Gas Operator | Dec 2021 |
| 24405 | Riley Deborah R | Nowata, OK 74048 | Oil Operator | Jul 2024 |
| 24406 | Riley Exploration Operating Co LLC | Blanchard, OK 73010-8024 | Gas Operator | Jun 2017 |
| 24407 | Riley Exploration Opg Co, LLC | La Grange, TX 78945 | Oil & Gas Operator | Sep 2024 |
| 24408 | Riley Exploration, LLC | Blanchard, OK 73010 | Oil & Gas Operator | Sep 2024 |
| 24409 | Riley Lee Roy | Chickasha, OK 73018-9306 | Oil & Gas Operator | May 2006 |
| 24410 | Riley Leo M Co | | Gas Operator | Oct 1998 |
| 24411 | Riley Permian Operating Co, LLC | Oklahoma City, OK 73104 | Oil & Gas Operator | Sep 2024 |
| 24412 | Riley Production | Throckmorton, TX 76483 | Oil & Gas Operator | Sep 2024 |
| 24413 | Riley Production, Inc. | Midland, TX 79701 | Oil & Gas Operator | Feb 2012 |
| 24414 | Riley Resources, Inc . | Oklahoma City, OK 73162 | Gas Operator | Aug 2023 |
| 24415 | Rim Oil Company | Hays, KS 67601 | Oil Operator | Jun 2001 |
| 24416 | Rim Operating, Inc. | Englewood, CO 80112 | Oil & Gas Operator | Sep 2024 |
| 24417 | Rim Southwest Corp | Farmington, NM 87499-2058 | Oil & Gas Operator | Jul 2024 |
| 24418 | Rimco Oil & Gas | | Oil Operator | Mar 1987 |
| 24419 | Rimco Production Company, Inc. | | Oil & Gas Operator | Jan 2004 |
| 24420 | Rimfire Resources, LLC | Dallas, TX 75201 | Oil & Gas Operator | Sep 2024 |
| 24421 | Rimrock Colony | Sunburst, MT 59482 | Gas Operator | Feb 2024 |
| 24422 | Rimrock Energy, LLC | Fort Worth, TX 76147 | Oil & Gas Operator | Oct 2012 |
| 24423 | Rimrock Gas Company | Weatherford, OK 73096 | Oil & Gas Operator | May 2008 |
| 24424 | Rimrock Oil Company | Kalispell, MT 59901 | Oil & Gas Operator | Dec 2023 |
| 24425 | Rimrock Production Inc. | Giddings, TX 78942 | Oil & Gas Operator | Sep 2024 |
| 24426 | Rimrock Resource Operating LLC | Tulsa, OK 74103-4462 | Oil & Gas Operator | Jun 2024 |
| 24427 | Rincon Island Limited Partnership | | Oil & Gas Operator | Nov 2022 |
| 24428 | Rincon Oil & Gas LLC | Arvada, CO 80005 | Gas Operator | Jun 2022 |
| 24429 | Rincon Oil Co. | | Oil & Gas Operator | Dec 1990 |
| 24430 | Rincon Petroleum Corporation | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Sep 2024 |
| 24431 | Rincon Production Co., Inc. | Farmers BRNCH, TX 75234 | Oil & Gas Operator | Apr 1997 |
| 24432 | Rine Drilling Co | | Oil & Gas Operator | Mar 1994 |
| 24433 | Rine Drillingand Exploration, Inc. | Wichita, KS 67202 | Gas Operator | Dec 2009 |
| 24434 | Rine Exploration | | Oil & Gas Operator | Jul 1994 |
| 24435 | Rine Exploration Co. | | Oil Operator | Jul 1988 |
| 24436 | Ring Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Sep 2024 |
| 24437 | Ringer Oil Co Inc | | Oil & Gas Operator | Aug 1989 |
| 24438 | Ringneck Resources, LLC | Tulsa, OK 74135 | Gas Operator | May 2024 |
| 24439 | Ringo Rig LLC | Coleman, TX 76834 | Oil & Gas Operator | Sep 2024 |
| 24440 | Ringwood Gathering Co | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2024 |
| 24441 | Rio Blanco Energy, Inc. | Littleton, CO 80121 | Oil & Gas Operator | Oct 2002 |
| 24442 | Rio Blanco Operating LLC | Victoria, TX 77904 | Oil & Gas Operator | Jun 2024 |
| 24443 | Rio Bravo Expl. & Prod. Co. | Houston, TX 77055 | Oil & Gas Operator | Apr 2020 |
| 24444 | Rio Bravo Oil Company | The Woodlands, TX 77381 | Oil & Gas Operator | Feb 2002 |
| 24445 | Rio Bravo Poso | | Oil & Gas Operator | Dec 2009 |
| 24446 | Rio Bravo Production, LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2024 |
| 24447 | Rio Bravo Royalty Co. | Bandera, TX 78003 | Oil & Gas Operator | Aug 2003 |
| 24448 | Rio Chama Petroleum, Inc | Pagosa Springs, CO 81147 | Oil & Gas Operator | Apr 2004 |
| 24449 | Rio Energy | Houston, TX 77067 | Oil Operator | Sep 2024 |
| 24450 | Rio Grand Exploration, LLC | San Antonio, TX 78216 | Oil & Gas Operator | Sep 2024 |
| 24451 | Rio Grande Drilling Company | San Antonio, TX 78212 | Oil & Gas Operator | Dec 1999 |
| 24452 | Rio Grande E&P II, LLC | Houston, TX 77092 | Gas Operator | Sep 2024 |
| 24453 | Rio Grande E&P, LLC | Houston, TX 77024 | Gas Operator | May 2022 |
| 24454 | Rio Interstate Oil, Inc. | Oklahoma City, OK 73189 | Oil & Gas Operator | Sep 1994 |
| 24455 | Rio Mesa Resources Inc | | Oil & Gas Operator | Jul 2022 |
| 24456 | Rio O & P LLC | Pasadena, TX 77504 | Oil Operator | Sep 2024 |
| 24457 | Rio Oil And Gas (Permian) II,LLC | The Woodlands, TX 77382 | Oil & Gas Operator | Sep 2024 |
| 24458 | Rio Petroleum, Inc. | Amarillo, TX 79102 | Oil & Gas Operator | Sep 2024 |
| 24459 | Rio VIsta Operating LLC | Eufaula, OK 74432-0789 | Gas Operator | Jun 2024 |
| 24460 | Rio-Tex, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Sep 2024 |
| 24461 | Ripco | | Oil & Gas Operator | Jul 1986 |
| 24462 | Rippy Branch Oil Co. | Grandfalls, TX 79742 | Oil & Gas Operator | Apr 2022 |
| 24463 | Rippy Oil Company | Tyler, TX 75702 | Oil & Gas Operator | Sep 2024 |
| 24464 | Riptide Energy LLC | Austin, TX 78701 | Oil & Gas Operator | Sep 2024 |
| 24465 | Risco La Sara Operations, LLC | Houston, TX 77056 | Oil & Gas Operator | Aug 2014 |
| 24466 | Rise Petroleum Investments LLC | Spring, TX 77386 | Oil & Gas Operator | Sep 2024 |
| 24467 | Riseden Services, Inc. | Houston, TX 77256 | Oil & Gas Operator | Sep 1997 |
| 24468 | Riseden, LTD | | Oil & Gas Operator | Nov 1989 |
| 24469 | Risher Company, Inc. | | Oil & Gas Operator | Jul 2001 |
| 24470 | Rising Star 2000 Oil & Gas, Inc. | | Oil Operator | Dec 2023 |
| 24471 | Rising Star Energy PTR, L.L.C. | Dallas, TX 75219 | Oil & Gas Operator | Sep 2024 |
| 24472 | Rising Star Energy, L.L.C. | Dallas, TX 75219 | Oil & Gas Operator | Aug 2006 |
| 24473 | Rising Star Energy-Oper Co., LLC | | Oil & Gas Operator | Nov 2006 |
| 24474 | Rising Star Petroleum, L.L.C. | Dallas, TX 75219 | Oil & Gas Operator | Apr 2010 |
| 24475 | Rissman Lease Operating | Oklahoma City, OK 73116 | Oil Operator | Dec 1996 |
| 24476 | Ristau Ricky J | Warren, PA 16365-3560 | Oil & Gas Operator | Dec 2023 |
| 24477 | Rister Oil&Gas International LLC | Eastland, TX 76448 | Oil & Gas Operator | Sep 2024 |
| 24478 | Rister, Dewey | Avoca, TX 79503 | Oil & Gas Operator | Sep 2024 |
| 24479 | Ritchie C Stewar | | Oil Operator | Aug 1982 |
| 24480 | Ritchie Explorat | | Oil & Gas Operator | Dec 1996 |
| 24481 | Ritchie Exploration | | Oil Operator | Aug 1995 |
| 24482 | Ritchie Exploration, Inc. | Wichita, KS 67278 | Oil & Gas Operator | Jun 2024 |
| 24483 | Ritchie Petroleum Corporation, Inc. | Pennsboro, WV 26415-0000 | Oil & Gas Operator | Dec 2021 |
| 24484 | Ritchie, A. Scott | Wichita, KS 67202 | Oil Operator | Mar 1988 |
| 24485 | Ritchie, H. G. Jr. | Taft, TX 78390 | Oil & Gas Operator | Sep 2024 |
| 24486 | Ritco, Inc | Jane Lew, WV 26378 | Oil & Gas Operator | Dec 2021 |
| 24487 | Rittenhouse Oil & Gas Co. | Midland, TX 79702 | Oil & Gas Operator | Sep 2024 |
| 24488 | Ritter Properties, LTD. | Fredericksbrg, TX 78624 | Oil & Gas Operator | Sep 2024 |
| 24489 | Ritter, Laber & Associates, Inc. | Williston, ND 58802 | Oil & Gas Operator | Apr 2024 |
| 24490 | Rivendell Group LLC | Pebble Beach, CA 93953-1479 | Oil Operator | Sep 2018 |
| 24491 | River Bend Operating, Inc. | | Oil & Gas Operator | Jul 1999 |
| 24492 | River City Resources Inc | Tulsa, OK 74119 | Oil & Gas Operator | Nov 1997 |
| 24493 | River Energy Co., Inc. | | Gas Operator | Dec 2012 |
| 24494 | River Gas Co | Marietta, OH 45750 | Oil & Gas Operator | Dec 1993 |
| 24495 | River Gas Corporation | Tuscaloosa, AL 35406-2233 | Gas Operator | Dec 2000 |
| 24496 | River Gas Of Utah Inc | Northport, AL 35476 | Gas Operator | Feb 1995 |
| 24497 | River Ridge Gravel Co | Meadville, PA 16335-9149 | Oil Operator | Dec 2023 |
| 24498 | River Road Production, LLC | Hays, KS 67601 | Oil Operator | Feb 1997 |
| 24499 | River Rock Operating LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2024 |
| 24500 | River Rouge Minerals | | Oil & Gas Operator | Dec 2023 |