| 25101 | Ridge Oil Company | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2025 |
| 25102 | Ridge Petroleum Inc. | Tyler, TX 75701 | Oil & Gas Operator | Dec 2025 |
| 25103 | Ridge Runner Properties Of N.Y. L.L.C | Pavilion, NY 14525 | Gas Operator | Dec 2024 |
| 25104 | Ridge Runner Resources Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Oct 2020 |
| 25105 | Ridgelake Energy, Inc. | | Oil & Gas Operator | Jul 2020 |
| 25106 | Ridgeland Energy, LLC | Pinch, WV 25156 | Oil & Gas Operator | Dec 2021 |
| 25107 | Ridgeland Wyoming Inc | | Oil Operator | Dec 2014 |
| 25108 | Ridgeline Energy Inc. | Miami, FL 33130 | Oil & Gas Operator | Dec 2025 |
| 25109 | Ridgeline Resources, LLC | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |
| 25110 | Ridgemar Energy Operating, LLC | Houston, TX 77057 | Oil & Gas Operator | Jan 2025 |
| 25111 | Ridgeview Gas & Oil Inc | Templeton, PA 16259-4505 | Oil & Gas Operator | Dec 2024 |
| 25112 | Ridgeview Gas Co | Templeton, PA 16259-4505 | Oil & Gas Operator | Dec 2010 |
| 25113 | Ridgeway Arizona Oil Corp. | Houston, TX 77079 | Oil & Gas Operator | Oct 2025 |
| 25114 | Ridgeway Exco, Inc. | San Antonio, TX 78279 | Oil & Gas Operator | Mar 1996 |
| 25115 | Ridgeway Resources | Barberton, OH 44203 | Oil & Gas Operator | Dec 2012 |
| 25116 | Ridglea Energy I, LLC | Spring, TX 77379 | Oil & Gas Operator | Dec 2025 |
| 25117 | Ridgway Realty & Land Inc | University Heights, OH 44118-3818 | Oil & Gas Operator | Dec 2019 |
| 25118 | Ridley Oil Corporation | Tyler, TX 75702 | Oil & Gas Operator | Nov 1996 |
| 25119 | Riegel, Steven | Ford, KS 67842 | Oil & Gas Operator | Mar 2017 |
| 25120 | Rieke, Leo Ernest | Lenexa, KS 66219 | Oil & Gas Operator | Aug 1986 |
| 25121 | Rierson Energy, LLC | McPherson, KS 67460 | Oil & Gas Operator | Jun 2025 |
| 25122 | Rierson, Joe | McPherson, KS 67460 | Oil Operator | Jun 2025 |
| 25123 | Rietz John T & Co Inc | | Oil & Gas Operator | Mar 1992 |
| 25124 | Rif Raf Inc | Norman, OK 73069 | Oil Operator | May 1999 |
| 25125 | Rife Energy Operating, Inc. | Fort Worth, TX 76116 | Oil & Gas Operator | Dec 2025 |
| 25126 | Rife Oil Properties Inc | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2025 |
| 25127 | Rife Operating, LTD. | Fort Worth, TX 76107 | Oil & Gas Operator | Oct 2005 |
| 25128 | Rife, Bud Dba B & S Gas & Oil Co | Harold, KY 41635 | Oil & Gas Operator | Dec 2023 |
| 25129 | Rife, M. O., Jr. | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 1998 |
| 25130 | Rig 6 Drilling Co., Inc. | Bronson, KS 66716 | Oil Operator | Oct 2019 |
| 25131 | Rig II LLC | Woods Cross, UT 84087 | Oil & Gas Operator | May 2018 |
| 25132 | Rig Iron Petroleum Inc | | Oil & Gas Operator | Aug 1988 |
| 25133 | Rig Iron, Inc. | | Oil & Gas Operator | Mar 1991 |
| 25134 | Rig Petroleum, LLC | Spearman, TX 79081 | Oil & Gas Operator | Dec 2025 |
| 25135 | Rig Runner Express Inc Of Texas | Kilgore, TX 75663 | Oil & Gas Operator | May 2014 |
| 25136 | Rig Runner Express, Inc. | Kilgore, TX 75662 | Oil & Gas Operator | Mar 2008 |
| 25137 | Rigel Resources Co., Inc. | | Oil Operator | Aug 2009 |
| 25138 | Rigel, Inc. | | Oil & Gas Operator | Feb 2010 |
| 25139 | Rigged Up, LLC | Graham, TX 76450 | Oil Operator | Dec 2025 |
| 25140 | Riggins Energy Inc. | Vernon, TX 76385 | Oil & Gas Operator | Jul 2004 |
| 25141 | Riggs Petroleum Company | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 25142 | Riggs, Don R. | San Antonio, TX 78270 | Oil & Gas Operator | Aug 2003 |
| 25143 | Riley & Scott Gas Co | Pikeville, KY 41502 | Gas Operator | Dec 2021 |
| 25144 | Riley Deborah R | Nowata, OK 74048 | Oil Operator | Oct 2025 |
| 25145 | Riley Exploration Operating Co LLC | Blanchard, OK 73010-8024 | Gas Operator | Jun 2017 |
| 25146 | Riley Exploration Opg Co, LLC | La Grange, TX 78945 | Oil & Gas Operator | Dec 2025 |
| 25147 | Riley Exploration, LLC | Blanchard, OK 73010 | Oil & Gas Operator | Dec 2025 |
| 25148 | Riley Lee Roy | Chickasha, OK 73018-9306 | Oil & Gas Operator | May 2006 |
| 25149 | Riley Leo M Co | | Gas Operator | Oct 1998 |
| 25150 | Riley Permian Operating Co, LLC | Oklahoma City, OK 73104 | Oil & Gas Operator | Dec 2025 |
| 25151 | Riley Production | Throckmorton, TX 76483 | Oil & Gas Operator | Dec 2025 |
| 25152 | Riley Production, Inc. | Midland, TX 79701 | Oil & Gas Operator | Feb 2012 |
| 25153 | Riley Resources, Inc . | Oklahoma City, OK 73162 | Gas Operator | Jun 2025 |
| 25154 | Rim Oil Company | Hays, KS 67601 | Oil Operator | Jun 2001 |
| 25155 | Rim Operating, Inc. | Englewood, CO 80112 | Oil & Gas Operator | Dec 2025 |
| 25156 | Rim Southwest Corp | Farmington, NM 87499-2058 | Oil & Gas Operator | Nov 2025 |
| 25157 | Rimco Oil & Gas | | Oil Operator | Mar 1987 |
| 25158 | Rimco Production Company, Inc. | | Oil & Gas Operator | Jan 2004 |
| 25159 | Rimfire Resources, LLC | Dallas, TX 75201 | Oil & Gas Operator | Dec 2025 |
| 25160 | Rimfire Swabbing, Inc. | | Oil Operator | Jan 2025 |
| 25161 | Rimrock Colony | Sunburst, MT 59482 | Gas Operator | Aug 2025 |
| 25162 | Rimrock Energy, LLC | Fort Worth, TX 76147 | Oil & Gas Operator | Oct 2012 |
| 25163 | Rimrock Gas Company | Weatherford, OK 73096 | Oil & Gas Operator | May 2008 |
| 25164 | Rimrock Oil Company | Kalispell, MT 59901 | Oil & Gas Operator | Dec 2023 |
| 25165 | Rimrock Production Inc. | Giddings, TX 78942 | Oil & Gas Operator | Dec 2025 |
| 25166 | Rimrock Resource Operating LLC | Tulsa, OK 74103-4462 | Oil & Gas Operator | Oct 2025 |
| 25167 | Rin-Tex Oil Co. | Snyder, TX 79549 | Oil & Gas Operator | Dec 2025 |
| 25168 | Rinard Petroleum LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2023 |
| 25169 | Rincon Island Limited Partnership | | Oil & Gas Operator | Nov 2022 |
| 25170 | Rincon Oil & Gas LLC | Arvada, CO 80005 | Gas Operator | Jun 2022 |
| 25171 | Rincon Oil Co. | | Oil & Gas Operator | Dec 1990 |
| 25172 | Rincon Petroleum Corporation | Corpus Chrsti, TX 78427 | Oil & Gas Operator | Dec 2025 |
| 25173 | Rincon Production Co., Inc. | Farmers BRNCH, TX 75234 | Oil & Gas Operator | Apr 1997 |
| 25174 | Rine Drilling Co | | Oil & Gas Operator | Mar 1994 |
| 25175 | Rine Drillingand Exploration, Inc. | Wichita, KS 67202 | Gas Operator | Dec 2009 |
| 25176 | Rine Exploration | | Oil & Gas Operator | Jul 1994 |
| 25177 | Rine Exploration Co. | | Oil Operator | Jul 1988 |
| 25178 | Ring Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |
| 25179 | Ringer Oil Co Inc | | Oil & Gas Operator | Aug 1989 |
| 25180 | Ringneck Resources, LLC | Tulsa, OK 74135 | Gas Operator | Jun 2025 |
| 25181 | Ringo Rig LLC | Coleman, TX 76834 | Oil & Gas Operator | Dec 2025 |
| 25182 | Rio Blanco Energy, Inc. | Littleton, CO 80121 | Oil & Gas Operator | Oct 2002 |
| 25183 | Rio Blanco Operating LLC | Victoria, TX 77904 | Oil & Gas Operator | Oct 2025 |
| 25184 | Rio Bravo Expl. & Prod. Co. | Houston, TX 77055 | Oil & Gas Operator | Apr 2020 |
| 25185 | Rio Bravo Oil Company | The Woodlands, TX 77381 | Oil & Gas Operator | Feb 2002 |
| 25186 | Rio Bravo Poso | | Oil & Gas Operator | Dec 2009 |
| 25187 | Rio Bravo Production, LLC | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 25188 | Rio Bravo Royalty Co. | Bandera, TX 78003 | Oil & Gas Operator | Aug 2003 |
| 25189 | Rio Chama Petroleum, Inc | Pagosa Springs, CO 81147 | Oil & Gas Operator | Apr 2004 |
| 25190 | Rio Energy | Houston, TX 77067 | Oil Operator | Dec 2025 |
| 25191 | Rio Exploration Company | San Antonio, TX 78209 | Gas Operator | Dec 2005 |
| 25192 | Rio Grand Exploration, LLC | San Antonio, TX 78216 | Oil & Gas Operator | Dec 2025 |
| 25193 | Rio Grande Drilling Company | San Antonio, TX 78212 | Oil & Gas Operator | Dec 1999 |
| 25194 | Rio Grande E&P II, LLC | Houston, TX 77092 | Gas Operator | Dec 2025 |
| 25195 | Rio Grande Energy | Laredo, TX 78041 | Oil & Gas Operator | May 2004 |
| 25196 | Rio Interstate Oil, Inc. | Oklahoma City, OK 73189 | Oil & Gas Operator | Sep 1994 |
| 25197 | Rio Mesa Resources Inc | | Oil Operator | Jul 2022 |
| 25198 | Rio O & P LLC | Pasadena, TX 77504 | Oil Operator | Dec 2025 |
| 25199 | Rio Oil And Gas (Permian) II,LLC | The Woodlands, TX 77382 | Oil & Gas Operator | Nov 2024 |
| 25200 | Rio Petroleum, Inc. | Amarillo, TX 79102 | Oil & Gas Operator | Dec 2025 |