| 25001 | RJM Oil Company, LLC | Irving, TX 75060 | Oil Operator | Jun 2025 |
| 25002 | RJW Oil And Gas, LLC | Cross Lane, WV 25313 | Oil & Gas Operator | Dec 2023 |
| 25003 | RK Petroleum Corp,Enex Res,Peninsular Oil Corp. | | Oil Operator | Dec 2024 |
| 25004 | Rki Energy Resources, LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2021 |
| 25005 | Rki Exploration & Production LLC | Tulsa, OK 74172 | Oil & Gas Operator | Jun 2025 |
| 25006 | RKK Production Company | Mustang, OK 73064 | Oil & Gas Operator | Apr 2025 |
| 25007 | RKR Exploration Inc | Seminole, OK 74868 | Oil & Gas Operator | Mar 2025 |
| 25008 | RKW Operating LLC | Weatherford, TX 76085 | Gas Operator | Jun 2025 |
| 25009 | RL Investment, LLC | Hill City, KS 67642 | Oil Operator | Feb 2025 |
| 25010 | RL&B Energy LLC | Wichita Falls, TX 76230 | Oil & Gas Operator | Mar 2025 |
| 25011 | RLB Enterprises, Inc. | Strawn, TX 76475 | Oil & Gas Operator | Feb 1997 |
| 25012 | RLB Investments LLC | Holdenville, OK 74848-9421 | Oil Operator | Jul 2017 |
| 25013 | RLM Energy Company Inc. | Monroe, LA 71201 | Oil & Gas Operator | Mar 2008 |
| 25014 | RLP Gulf States, L.L.C. | | Oil & Gas Operator | Apr 2012 |
| 25015 | RLS Oil Company | Tulia, TX 79088 | Oil & Gas Operator | Jun 2025 |
| 25016 | RLS Partnership | | Oil Operator | Apr 1983 |
| 25017 | RLT Investment | Morland, KS 67650 | Oil Operator | Mar 2009 |
| 25018 | Rlu Oil & Gas, Inc. | Devine, TX 78016 | Oil & Gas Operator | Jun 2025 |
| 25019 | Rlu Operating, LLC | Devine, TX 78016 | Oil & Gas Operator | Jun 2025 |
| 25020 | RM Energy LTD Liab. Co. | Casper, WY 82602 | Gas Operator | Mar 2009 |
| 25021 | RMB Corporation | Senecaville, OH 43780 | Oil & Gas Operator | Dec 2016 |
| 25022 | RMB Operating LLC | Lubbock, TX 79493 | Oil & Gas Operator | Jun 2025 |
| 25023 | RMC Petroleum, Inc. | Midland, TX 79710 | Oil & Gas Operator | Dec 1996 |
| 25024 | Rme Austin Chalk Company | Houston, TX 77251 | Oil & Gas Operator | Nov 2002 |
| 25025 | Rme Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Nov 2016 |
| 25026 | Rmi Company | Niles, OH 44446 | Oil & Gas Operator | Dec 1984 |
| 25027 | Rmor Production | Kilgore, TX 75662 | Oil Operator | Jun 2025 |
| 25028 | RMR Drilling Com | | Oil Operator | Sep 1988 |
| 25029 | RMR Energy Resources | | Oil Operator | Mar 2025 |
| 25030 | RMR Oil Company | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2005 |
| 25031 | RMR Operating, LLC | Plano, TX 75024 | Oil & Gas Operator | Jun 2025 |
| 25032 | RMS Monte Christo, LLC | Snowmass VLG., CO 81615 | Oil & Gas Operator | Mar 2023 |
| 25033 | RMT Resources LLC | | Oil Operator | Jan 2025 |
| 25034 | RMX Oil & Gas, LLC | Zapata, TX 78076 | Oil Operator | Jun 2025 |
| 25035 | RNS Oil Co. | Rio Grande Ci, TX 78582 | Oil Operator | Jun 2025 |
| 25036 | Ro-Jo, Inc. | Highland VLG, TX 75077 | Oil & Gas Operator | Aug 2003 |
| 25037 | Roach & Assoc Inc | Pittsburgh, PA 15228-1924 | Gas Operator | Dec 2024 |
| 25038 | Roach, R. Byron Trustee | Judson, TX 75660 | Oil & Gas Operator | Mar 1999 |
| 25039 | Roach, R. Byron, Trustee, LLC | Judson, TX 75660 | Oil & Gas Operator | Mar 2007 |
| 25040 | Road Oil Sales Inc. | Tyler, TX 75711 | Oil Operator | Dec 1984 |
| 25041 | Road Runner Inc | Park City, UT 84060 | Oil & Gas Operator | Aug 2005 |
| 25042 | Roadrunner Energy | | Oil Operator | Sep 2005 |
| 25043 | Roadrunner Energy, Inc. | Tulsa, OK 74120 | Oil & Gas Operator | Jan 2025 |
| 25044 | Roan Resources LLC | Tulsa, OK 74103-3729 | Oil & Gas Operator | Apr 2024 |
| 25045 | Roanoke Corporation | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 1995 |
| 25046 | Roaring Springs Energy, LTD. | Midland, TX 79702 | Oil & Gas Operator | Feb 2010 |
| 25047 | Roark S L | | Oil & Gas Operator | Nov 1992 |
| 25048 | Roark, Nancy | Winfield, KS 67156 | Oil Operator | Dec 2004 |
| 25049 | Rob-Joe Gas & Oil Co. | Ranger, TX 76470 | Oil & Gas Operator | Jun 2025 |
| 25050 | Robbins Energy, Inc. | Longview, TX 75606 | Oil & Gas Operator | Sep 1994 |
| 25051 | Robbins Petroleum Corp. | Longview, TX 75606 | Oil & Gas Operator | Sep 1994 |
| 25052 | Robbins Thomas D & Charlene A Revocable Trust | Plano, TX 75093-7471 | Oil Operator | Jul 2018 |
| 25053 | Robbins, Jesse M. | Jamestown, NY 14701 | Gas Operator | Dec 2023 |
| 25054 | Robbins, L. C. | Seguin, TX 78155 | Oil & Gas Operator | Aug 2003 |
| 25055 | Robby Kohutek, Inc. | Ballinger, TX 76821 | Oil & Gas Operator | Jun 2025 |
| 25056 | Robco Investments, Inc. | | Oil & Gas Operator | Jul 2016 |
| 25057 | Roberson David A | Ada, OK 74821-0008 | Oil & Gas Operator | Jul 2010 |
| 25058 | Roberson Farm Equipment, Inc. | | Oil Operator | Mar 1989 |
| 25059 | Roberson Oil Company | Houston, TX 77046 | Oil & Gas Operator | Mar 2025 |
| 25060 | Roberson Well Service | | Gas Operator | Dec 2024 |
| 25061 | Roberson, Joe | Vernon, TX 76385 | Oil & Gas Operator | Feb 2015 |
| 25062 | Robert A Craig | | Oil Operator | Jul 2020 |
| 25063 | Robert A. Cohan | | Oil & Gas Operator | Jan 2018 |
| 25064 | Robert C Dintelman | Farmington, NM 87401 | Oil & Gas Operator | Jan 2000 |
| 25065 | Robert C. Brower, LLC | Southlake, TX 76092 | Oil & Gas Operator | Jun 2025 |
| 25066 | Robert C. Pettit | | Oil & Gas Operator | Feb 1986 |
| 25067 | Robert D Chenault | Farmington, NM 87402 | Oil & Gas Operator | Oct 2020 |
| 25068 | Robert D Valerius Inc. | | Oil Operator | Mar 1996 |
| 25069 | Robert D. VIgue | | Oil Operator | Dec 2000 |
| 25070 | Robert E McDowell | | Oil Operator | Dec 1998 |
| 25071 | Robert E. & Ruby C. Beasley Trustees | | Oil & Gas Operator | Dec 1990 |
| 25072 | Robert E. Landreth | Midland, TX 79701 | Oil & Gas Operator | Jun 2014 |
| 25073 | Robert G Cox & Assoc La Inc. | | Oil & Gas Operator | Jun 1994 |
| 25074 | Robert H & Layna Plummer Rev Intervivios Trust | | Oil Operator | Jul 2018 |
| 25075 | Robert H Forrest Jr Oil LLC | Carlsbad, NM 88220 | Oil & Gas Operator | Mar 2025 |
| 25076 | Robert Hawkins Inc | Kevin, MT 59454 | Oil & Gas Operator | Mar 2025 |
| 25077 | Robert Hopkins Operations, LLC | Salina, KS 67401 | Oil Operator | Nov 2019 |
| 25078 | Robert J & Wilma J Webster | Edinboro, PA 16412-4928 | Gas Operator | Dec 2018 |
| 25079 | Robert K. Freeman | | Oil Operator | Jul 1991 |
| 25080 | Robert L Bayless | Farmington, NM 87499 | Oil & Gas Operator | Nov 2003 |
| 25081 | Robert L Bayless Producer, LLC | Denver, CO 80202 | Oil & Gas Operator | Apr 2025 |
| 25082 | Robert L Love | Hobbs, NM 88240 | Oil & Gas Operator | May 1997 |
| 25083 | Robert L Parker Trust | Tulsa, OK BADADDR | Oil & Gas Operator | Oct 2003 |
| 25084 | Robert L. Waterbury | | Oil & Gas Operator | Nov 2001 |
| 25085 | Robert L. Waterbury, L.L.C. | | Oil & Gas Operator | Dec 2024 |
| 25086 | Robert M. Mills | | Oil Operator | Oct 2017 |
| 25087 | Robert N Enfield | Santa Fe, NM 87501 | Oil & Gas Operator | Nov 1997 |
| 25088 | Robert P. Artzberger | | Oil & Gas Operator | Dec 1979 |
| 25089 | Robert P. Wilson, Inc. | Montclair, NJ 07043 | Gas Operator | Dec 2019 |
| 25090 | Robert R Click | Dallas, TX 75231 | Oil & Gas Operator | Dec 1994 |
| 25091 | Robert S. Barnwell, III | | Oil & Gas Operator | Oct 1984 |
| 25092 | Robert S. Harwell, Inc. | Edmond, OK 73034 | Oil Operator | Nov 2019 |
| 25093 | Robert Sumpf | | Gas Operator | Dec 1990 |
| 25094 | Robert T. Epperson Prod Co, LLC | Tyler, TX 75713 | Gas Operator | Dec 2017 |
| 25095 | Robert W. Berry Inc. | | Gas Operator | Dec 1988 |
| 25096 | Robert W. Lee Investments | | Oil & Gas Operator | Dec 1998 |
| 25097 | Robert W. Omeara | | Oil & Gas Operator | Sep 1988 |
| 25098 | Robert-Gay Energ | | Oil & Gas Operator | Jun 1992 |
| 25099 | Robert-Gay Energy Enterprises | Hutchinson, KS 67501 | Oil Operator | Nov 1999 |
| 25100 | Roberta Hutton/Robert Hutton | Iola, KS 66749 | Oil Operator | Oct 2007 |