| 24301 | Reserve Petroleum California Inc. | | Oil & Gas Operator | Aug 2024 |
| 24302 | Reserve Production, Inc. | Tyler, TX 75713 | Oil & Gas Operator | Mar 2008 |
| 24303 | Reservoir Research Corp | | Oil Operator | Dec 2009 |
| 24304 | Resetarits, David W. | Elma, NY 14059 | Gas Operator | Dec 2023 |
| 24305 | Resolute Natural Res. Co., LLC | Midland, TX 79706 | Oil & Gas Operator | Nov 2024 |
| 24306 | Resolute Natural Resources Co., LLC | Denver, CO 80203 | Oil & Gas Operator | Feb 2017 |
| 24307 | Resolute Wyoming Inc | Denver, CO 80203 | Oil & Gas Operator | May 2018 |
| 24308 | Resolve Energy Corp | | Gas Operator | May 2009 |
| 24309 | Resonance Exploration (North Dakota) LLC | | Oil & Gas Operator | Oct 2024 |
| 24310 | Resource Acquisitions Corp. | | Oil & Gas Operator | Dec 2002 |
| 24311 | Resource America Inc | Uniontown, OH 44685 | Oil & Gas Operator | Dec 2011 |
| 24312 | Resource Dev Technology LLC | Morrison, CO 80465-5020 | Oil & Gas Operator | Jan 2017 |
| 24313 | Resource Development Technology LLC | Morrison, CO 80465 | Oil & Gas Operator | Oct 2020 |
| 24314 | Resource Development, Inc. | Stroud, OK 74079 | Oil & Gas Operator | Feb 2007 |
| 24315 | Resource Energy Can-Am LLC | | Oil & Gas Operator | May 2022 |
| 24316 | Resource Energy Technologies, LLC | | Oil & Gas Operator | Dec 2017 |
| 24317 | Resource Engineering | | Gas Operator | Aug 2024 |
| 24318 | Resource Enterprises Inc | Salt Lake City, UT 84108 | Gas Operator | Dec 1990 |
| 24319 | Resource Expl & Prod, Inc. | Salado, TX 76571 | Oil & Gas Operator | Nov 2024 |
| 24320 | Resource Management Company | Fredericksbrg, TX 78624 | Oil & Gas Operator | Feb 2015 |
| 24321 | Resource Oil And Gas, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Nov 2024 |
| 24322 | Resource Operating Company | Abilene, TX 79601 | Oil & Gas Operator | Jul 1997 |
| 24323 | Resource Operations, Inc. | Tulsa, OK 74157 | Oil & Gas Operator | May 2016 |
| 24324 | Resource Production Inc | Bridgeport, CT 06604 | Oil & Gas Operator | Dec 1993 |
| 24325 | Resource Rock Services, LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2018 |
| 24326 | Resource Securities Corp. | | Oil & Gas Operator | Mar 2005 |
| 24327 | Resource Venture | | Oil & Gas Operator | Oct 1991 |
| 24328 | Resources & Investment Co. | Mandeville, LA 70448 | Oil Operator | Oct 2023 |
| 24329 | Resources America, Inc | | Oil Operator | Jan 1983 |
| 24330 | Resources Investment Corp | Denver, CO 80202 | Oil & Gas Operator | Sep 2018 |
| 24331 | Resources Operating Co Inc | Enid, OK 73703-1628 | Oil & Gas Operator | Jul 2024 |
| 24332 | Ress Production Co. | Farmington, NM 87499 | Oil & Gas Operator | Nov 2024 |
| 24333 | Ressler Well Service, Inc. | Burrton, KS 67020 | Oil & Gas Operator | Jul 2024 |
| 24334 | Restoration Energy LLC | Austin, TX 78746 | Oil & Gas Operator | Nov 2024 |
| 24335 | Restore Operating LLC | Andrews, TX 79714 | Oil & Gas Operator | Nov 2024 |
| 24336 | Ret Oil Inc | Del City, OK 73115 | Oil & Gas Operator | Jan 2007 |
| 24337 | Retama Oil Corporation | Uvalde, TX 78801 | Oil & Gas Operator | Nov 2024 |
| 24338 | Retamco Operating Inc | Red Lodge, MT 59068-0790 | Oil & Gas Operator | Aug 2024 |
| 24339 | Retsal Drilling Co. | | Oil & Gas Operator | Jan 1984 |
| 24340 | Retsal Production Company | | Oil & Gas Operator | Mar 1986 |
| 24341 | Return Oil Corp | Oil City, PA 16301-0564 | Oil Operator | Dec 1992 |
| 24342 | Reubin Collins Dba RCJ Enterprises | Hobbs, NM 882416055 | Oil & Gas Operator | May 2009 |
| 24343 | Reunion Energy Company | Houston, TX 77056 | Oil & Gas Operator | May 1996 |
| 24344 | Reunion Resources, Inc. | | Oil & Gas Operator | Dec 2015 |
| 24345 | Reunion Titan, Inc. | | Oil & Gas Operator | Jan 2017 |
| 24346 | Reusch Well Service, Inc. | Ottawa, KS 66067 | Oil Operator | Jul 2024 |
| 24347 | Revard Oil & Gas Properties Inc | Tulsa, OK 74170 | Oil & Gas Operator | Sep 2024 |
| 24348 | Revard Petroleum, L.L.C. | Tulsa, OK 74170 | Oil & Gas Operator | Nov 2024 |
| 24349 | Reveille Resources | Houston, TX 77084 | Oil & Gas Operator | Apr 2011 |
| 24350 | Reveille Resources (Texas), Inc. | Houston, TX 77084 | Oil & Gas Operator | Jan 2013 |
| 24351 | Revel Oil & Gas, Inc. | | Oil & Gas Operator | Feb 2001 |
| 24352 | Revelation Gas & Oil Oklahoma LLC | Kansas City, KS 66103 | Oil & Gas Operator | Jul 2023 |
| 24353 | Revelation Oil & Gas LLC | Dumas, TX 79029 | Oil & Gas Operator | Nov 2024 |
| 24354 | Revelation Resources | Cypress, TX 77410-2578 | Oil & Gas Operator | Aug 2024 |
| 24355 | Revere Corporation | Fort Smith, AR 72902-0908 | Oil & Gas Operator | Feb 2015 |
| 24356 | Reverence Operating LLC | Odessa, TX 79768 | Oil & Gas Operator | Nov 2024 |
| 24357 | Revier Resources Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2005 |
| 24358 | Revier, J. B. Prod. Company | Wichita Falls, TX 76302 | Oil & Gas Operator | Apr 1996 |
| 24359 | Review Oil & Gas Inc | Edmond, OK 73034-7648 | Oil & Gas Operator | Aug 2024 |
| 24360 | Revilo Exploration LLC | Edmond, OK 73034 | Oil & Gas Operator | Apr 2020 |
| 24361 | Revilo Exploration, Inc. | Richardson, TX 75081 | Oil & Gas Operator | Jul 2021 |
| 24362 | Revocable Inter VIvos Trust Of Delapp Frankie L | Bartlesville, OK 74006-0307 | Oil & Gas Operator | Feb 2020 |
| 24363 | Revolution Operating Company,LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jul 2024 |
| 24364 | Revolution Resources LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jun 2023 |
| 24365 | Rex Drummond | Conneaut, OH 44030-9678 | Oil & Gas Operator | Dec 2019 |
| 24366 | Rex Energy Operating Corp. | State College, PA 16801 | Oil & Gas Operator | Jun 2012 |
| 24367 | Rex Energy Rockies LLC | State College, PA 16801 | Oil & Gas Operator | May 2013 |
| 24368 | Rex Oil, A Texas Partnership | Hondo, TX 78861 | Oil & Gas Operator | May 2003 |
| 24369 | Rexcom, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Nov 2024 |
| 24370 | Rexoco Incorpora | | Oil Operator | Apr 1992 |
| 24371 | Rey Oil & Gas, Inc | Oneida, TN 37841 | Oil Operator | Dec 2022 |
| 24372 | Reynolds Drill Coinc/Rosbottom | | Oil & Gas Operator | Jan 1990 |
| 24373 | Reynolds Drilling Co., Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Nov 2024 |
| 24374 | Reynolds E & P, Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Nov 2024 |
| 24375 | Reynolds Exploration Co. | | Oil Operator | Dec 1986 |
| 24376 | Reynolds J W & Associates | Sapulpa, OK 74066 | Oil & Gas Operator | Dec 2000 |
| 24377 | Reynolds Metals Company | | Gas Operator | Nov 2003 |
| 24378 | Reynolds Mining Corp | | Oil & Gas Operator | Aug 1968 |
| 24379 | Reynolds Oil Co. | | Oil Operator | Nov 2005 |
| 24380 | Reynolds Res, Inc | Owensboro, KY 42303 | Oil & Gas Operator | Dec 2022 |
| 24381 | Reynolds, Dan Company | Camden, AR 71701 | Oil Operator | Jul 2024 |
| 24382 | Reynolds, E. P., Jr. | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 24383 | Reynolds, J David Company | Camden, AR 71701 | Oil & Gas Operator | Jul 2024 |
| 24384 | Reynolds, J. C. & W. F. | Wichita Falls, TX 76301 | Oil & Gas Operator | Nov 2024 |
| 24385 | Reynolds, Richard | Seymour, TX 76380 | Oil & Gas Operator | Mar 2008 |
| 24386 | Reyrock Oil, LLC | Limestone, NY 14753 | Oil & Gas Operator | Dec 2023 |
| 24387 | RF Operating And Supply Inc | | Oil & Gas Operator | Feb 2013 |
| 24388 | RFB Exploration | | Oil Operator | Feb 1981 |
| 24389 | Rfe Operating, LLC | Tyler, TX 75703 | Oil & Gas Operator | Nov 2024 |
| 24390 | RG Exploration, LLC | Midland, TX 78705 | Oil & Gas Operator | Feb 2020 |
| 24391 | RGN Company, Inc. | Stockton, KS 67669 | Oil Operator | Jun 2024 |
| 24392 | RGX Energy LLC | Plano, TX 75025 | Oil & Gas Operator | Oct 2019 |
| 24393 | RH Capital-Beets, LLC | Jefferson City, MO 65101 | Oil Operator | Jul 2024 |
| 24394 | RHB Exploration & Production,LLC | Grapevine, TX 76099 | Oil & Gas Operator | Nov 2024 |
| 24395 | RHC Energy (USA) LLC | Houston, TX 77027 | Oil Operator | Nov 2024 |
| 24396 | RHDK Oil & Gas LLC/Dba Red Hill | Dover, OH 44622-9801 | Oil & Gas Operator | Dec 2023 |
| 24397 | Rhea, Andrew | Galva, KS 67443 | Oil & Gas Operator | May 2024 |
| 24398 | Rheaco Oil Company, LTD. | Sourlake, TX 77659 | Oil Operator | Nov 2024 |
| 24399 | Rheata Resources, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2024 |
| 24400 | Rheem Resources Inc | Wichita, KS 67220 | Oil Operator | Aug 1998 |