| 24101 | Resource Engineering | | Gas Operator | Nov 2024 |
| 24102 | Resource Enterprises Inc | Salt Lake City, UT 84108 | Gas Operator | Dec 1990 |
| 24103 | Resource Expl & Prod, Inc. | Salado, TX 76571 | Oil & Gas Operator | Apr 2026 |
| 24104 | Resource Management Company | Fredericksbrg, TX 78624 | Oil & Gas Operator | Feb 2015 |
| 24105 | Resource Oil And Gas, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Apr 2026 |
| 24106 | Resource Operating Company | Abilene, TX 79601 | Oil & Gas Operator | Jul 1997 |
| 24107 | Resource Operations Inc | Tulsa, OK 74157 | Oil & Gas Operator | May 2016 |
| 24108 | Resource Production Inc | Bridgeport, CT 06604 | Oil & Gas Operator | Dec 1993 |
| 24109 | Resource Reclamation LLC | Greenville, KY 42345 | Gas Operator | Dec 2024 |
| 24110 | Resource Rock Services, LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2018 |
| 24111 | Resource Securities Corp. | | Oil & Gas Operator | Mar 2005 |
| 24112 | Resource Venture | | Oil & Gas Operator | Oct 1991 |
| 24113 | Resources & Investment Co. | Mandeville, LA 70448 | Oil Operator | Oct 2023 |
| 24114 | Resources America, Inc | | Oil Operator | Jan 1983 |
| 24115 | Resources Investment Corp | Denver, CO 80202 | Oil & Gas Operator | Sep 2018 |
| 24116 | Resources Operating Co Inc | Rogers, AR 72756 | Oil & Gas Operator | Oct 2025 |
| 24117 | Ress Production Co. | Farmington, NM 87499 | Oil & Gas Operator | Apr 2026 |
| 24118 | Ressler Well Service, Inc. | Burrton, KS 67020 | Oil & Gas Operator | Dec 2025 |
| 24119 | Restoration Energy LLC | Amarillo, TX 79124 | Oil & Gas Operator | Apr 2026 |
| 24120 | Restore Operating LLC | Andrews, TX 79714 | Oil & Gas Operator | Apr 2026 |
| 24121 | Ret Oil Inc | Del City, OK 73115 | Oil & Gas Operator | Jan 2007 |
| 24122 | Retama Oil Corporation | Uvalde, TX 78801 | Oil & Gas Operator | Apr 2026 |
| 24123 | Retamco Operating Inc | Red Lodge, MT 59068 | Oil & Gas Operator | Jan 2026 |
| 24124 | Retriever Operating LLC | Midland, TX 79704 | Oil & Gas Operator | Apr 2026 |
| 24125 | Retsal Drilling Co. | | Oil & Gas Operator | Jan 1984 |
| 24126 | Retsal Production Company | | Oil & Gas Operator | Mar 1986 |
| 24127 | Return Oil Corp | Oil City, PA 16301-0564 | Oil Operator | Dec 1992 |
| 24128 | Reubin Collins Dba RCJ Enterprises | Hobbs, NM 882416055 | Oil & Gas Operator | May 2009 |
| 24129 | Reunion Energy Company | Houston, TX 77056 | Oil & Gas Operator | May 1996 |
| 24130 | Reunion Resources, Inc. | | Oil & Gas Operator | Dec 2015 |
| 24131 | Reunion Titan, Inc. | | Oil & Gas Operator | Jan 2017 |
| 24132 | Reusch Well Service, Inc. | Ottawa, KS 66067 | Oil Operator | Dec 2019 |
| 24133 | Revard Oil And Gas Properties Inc | | Oil & Gas Operator | Feb 2026 |
| 24134 | Revard Petroleum, L.L.C. | Tulsa, OK 74170 | Oil & Gas Operator | Apr 2026 |
| 24135 | Reveille Resources | Houston, TX 77084 | Oil & Gas Operator | Apr 2011 |
| 24136 | Reveille Resources (Texas), Inc. | Houston, TX 77084 | Oil & Gas Operator | Jan 2013 |
| 24137 | Revel Oil & Gas, Inc. | | Oil & Gas Operator | Feb 2001 |
| 24138 | Revelation Gas & Oil Oklahoma LLC | Kansas City, KS 66103 | Oil & Gas Operator | Jul 2023 |
| 24139 | Revelation Oil & Gas LLC | Dumas, TX 79029 | Oil & Gas Operator | Apr 2026 |
| 24140 | Revelation Resources | Cypress, TX 77410-2578 | Oil & Gas Operator | Jan 2026 |
| 24141 | Revere Corporation | Fort Smith, AR 72902-0908 | Oil & Gas Operator | Feb 2015 |
| 24142 | Reverence Operating LLC | Odessa, TX 79768 | Oil & Gas Operator | Apr 2026 |
| 24143 | Revier Resources Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2005 |
| 24144 | Revier, J. B. Prod. Company | Wichita Falls, TX 76302 | Oil & Gas Operator | Apr 1996 |
| 24145 | Review Oil & Gas Inc | Edmond, OK 73034-7648 | Oil & Gas Operator | Jan 2026 |
| 24146 | Revilo Exploration LLC | Edmond, OK 73034 | Oil & Gas Operator | Apr 2020 |
| 24147 | Revilo Exploration, Inc. | Richardson, TX 75081 | Oil & Gas Operator | Jul 2021 |
| 24148 | Revitalize Resources Operating, Inc | Evansville, IN 47708 | Oil Operator | Dec 2024 |
| 24149 | Revocable Inter VIvos Trust Of Delapp Frankie L | Bartlesville, OK 74006-0307 | Oil & Gas Operator | Feb 2020 |
| 24150 | Revolution Operating Company,LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jul 2024 |
| 24151 | Revolution Resources LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jun 2023 |
| 24152 | Rex Drummond | Conneaut, OH 44030-9678 | Oil & Gas Operator | Dec 2019 |
| 24153 | Rex Energy Operating Corp. | State College, PA 16801 | Oil & Gas Operator | Jun 2012 |
| 24154 | Rex Energy Rockies LLC | State College, PA 16801 | Oil & Gas Operator | May 2013 |
| 24155 | Rex Oil, A Texas Partnership | Hondo, TX 78861 | Oil & Gas Operator | May 2003 |
| 24156 | Rexcom, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Apr 2026 |
| 24157 | Rexoco Incorpora | | Oil Operator | Apr 1992 |
| 24158 | Reynolds Drill Coinc/Rosbottom | | Oil & Gas Operator | Jan 1990 |
| 24159 | Reynolds Drilling Co., Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Apr 2026 |
| 24160 | Reynolds E & P, Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Apr 2026 |
| 24161 | Reynolds Exploration Co. | | Oil Operator | Dec 1986 |
| 24162 | Reynolds J W & Associates | Sapulpa, OK 74066 | Oil & Gas Operator | Dec 2000 |
| 24163 | Reynolds Mining Corp | | Oil & Gas Operator | Aug 1968 |
| 24164 | Reynolds Oil Company | | Oil Operator | Nov 2005 |
| 24165 | Reynolds Res, Inc | Owensboro, KY 42303 | Oil & Gas Operator | Dec 2024 |
| 24166 | Reynolds, Dan Company | Camden, AR 71701 | Oil Operator | Jan 2025 |
| 24167 | Reynolds, E. P., Jr. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 24168 | Reynolds, J David Company | Camden, AR 71701 | Oil & Gas Operator | Jan 2025 |
| 24169 | Reynolds, J. C. & W. F. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2026 |
| 24170 | Reynolds, Richard | Seymour, TX 76380 | Oil & Gas Operator | Mar 2008 |
| 24171 | Reyrock Oil, LLC | Limestone, NY 14753 | Oil & Gas Operator | Dec 2024 |
| 24172 | RF Operating And Supply Inc | | Oil & Gas Operator | Feb 2013 |
| 24173 | RFB Exploration | | Oil Operator | Feb 1981 |
| 24174 | Rfe Operating, LLC | Tyler, TX 75703 | Oil & Gas Operator | Apr 2026 |
| 24175 | RG Exploration, LLC | Midland, TX 78705 | Oil & Gas Operator | Feb 2020 |
| 24176 | RGN Company, Inc. | Stockton, KS 67669 | Oil Operator | Aug 2025 |
| 24177 | RGX Energy LLC | Plano, TX 75025 | Oil & Gas Operator | Oct 2019 |
| 24178 | RH Capital-Beets, LLC | Jefferson City, MO 65101 | Oil Operator | Dec 2025 |
| 24179 | RHB Exploration & Production,LLC | Grapevine, TX 76099 | Oil & Gas Operator | Apr 2026 |
| 24180 | RHC Energy (USA) LLC | Houston, TX 77027 | Oil Operator | Apr 2026 |
| 24181 | RHDK Oil & Gas LLC/Dba Red Hill | Dover, OH 44622-9801 | Oil & Gas Operator | Dec 2025 |
| 24182 | Rhea, Andrew | Galva, KS 67443 | Oil & Gas Operator | Aug 2025 |
| 24183 | Rheaco Oil Company, LTD. | Sourlake, TX 77659 | Oil Operator | Apr 2026 |
| 24184 | Rheata Resources, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2026 |
| 24185 | Rheem Resources Inc | Wichita, KS 67220 | Oil Operator | Aug 1998 |
| 24186 | Rhine Oil Co LLC | Dalton, OH 44618 | Oil & Gas Operator | Dec 1999 |
| 24187 | Rhino Operating Company LLC | Brentwood, TN 37027-8760 | Oil & Gas Operator | Jan 2026 |
| 24188 | Rhoades Oil Co | Tulsa, OK 74136-5575 | Oil & Gas Operator | Aug 2013 |
| 24189 | Rhoads Brothers Oil & Gas Inc | Tulsa, OK 74136 | Oil & Gas Operator | May 1996 |
| 24190 | Rhoads Mark Operations | Ponca City, OK 74604 | Oil & Gas Operator | May 2006 |
| 24191 | Rhoads Oil, LLC | | Oil Operator | Jan 2025 |
| 24192 | Rhoads, Mark | Seminole, OK 74868 | Oil Operator | Sep 1999 |
| 24193 | Rhoden Investment Co. | | Oil Operator | Dec 1987 |
| 24194 | Rhodes Disposal, Inc. | Bryson, TX 76427 | Oil Operator | Apr 2026 |
| 24195 | Rhodes Drilling Company | Abilene, TX 79608 | Oil & Gas Operator | Sep 2000 |
| 24196 | Rhodes Well Service | | Oil Operator | Dec 2025 |
| 24197 | Rhodes-Fielding Corporation | Oklahoma City, OK 73134 | Oil & Gas Operator | Mar 2025 |
| 24198 | Rhombus Operating Co., LTD | Littleton, CO 80160 | Oil & Gas Operator | Feb 2026 |
| 24199 | Rhonda Operating Company | Midland, TX 79710 | Oil & Gas Operator | Aug 2017 |
| 24200 | RHR Oil & Gas, LLC | Fort Worth, TX 76107 | Oil Operator | Apr 2026 |