| 4901 | Reach Oil And Gas Company Inc | Oklahoma City, OK 73118-1100 | Oil & Gas Operator | Dec 2025 |
| 4902 | Reading & Bates Petroleum Co | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2009 |
| 4903 | Reagan Production Inc | Terral, OK 73569 | Oil Operator | Nov 2025 |
| 4904 | Real Production Management LLC | Tulsa, OK 74103 | Oil Operator | Oct 2025 |
| 4905 | Reames Jr Keith E | Duncan, OK 73534-0246 | Oil & Gas Operator | Jul 1999 |
| 4906 | Rebel Oil Company | Keaton, KY 41226 | Oil & Gas Operator | Jan 2025 |
| 4907 | Rebellion Energy LLC | Tulsa, OK 74135-6241 | Oil & Gas Operator | Jun 2022 |
| 4908 | Red Bluff Resources Operating LLC | Oklahoma City, OK 73112-5468 | Oil & Gas Operator | Dec 2025 |
| 4909 | Red Buck Oil Company | Copan, OK 74022-0215 | Oil Operator | Nov 2009 |
| 4910 | Red Dirt Environmental Services LLC | Checotah, OK 74426 | Oil & Gas Operator | Dec 2025 |
| 4911 | Red Eagle Oil Company | Oklahoma City, OK 73154 | Oil & Gas Operator | Mar 2005 |
| 4912 | Red Earth Oil & Gas, Inc. | Oklahoma City, OK 73159 | Oil & Gas Operator | Oct 2021 |
| 4913 | Red Fork (USA) Investments Inc | Midland, TX 79710-0272 | Oil & Gas Operator | May 2019 |
| 4914 | Red Fork Oil Co | Lakewood, CO 80215 | Oil & Gas Operator | Aug 1993 |
| 4915 | Red Fork Oil Production Inc | Mannford, OK 74044-0492 | Oil & Gas Operator | Feb 2017 |
| 4916 | Red Fork Production, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Dec 2025 |
| 4917 | Red Fork Valley Oil & Gas Co | Cushing, OK 74023 | Oil Operator | Dec 2014 |
| 4918 | Red Hawk Disposal LLC | Oklahoma City, OK 73172 | Oil Operator | Jun 2023 |
| 4919 | Red Hawk Resources Inc | Edmond, OK 73003-3207 | Oil & Gas Operator | Jan 2026 |
| 4920 | Red Mountain Operating LLC | Oklahoma City, OK 73118-1253 | Oil & Gas Operator | Apr 2024 |
| 4921 | Red Ox Resources LLC | Dumas, TX 79029 | Gas Operator | Dec 2025 |
| 4922 | Red Plains Oil & Gas LLC | Kingfisher, OK 73750 | Oil & Gas Operator | Oct 2017 |
| 4923 | Red River Fuels Inc | Bristow, OK 74010-2231 | Oil & Gas Operator | Mar 2008 |
| 4924 | Red River Oil & Gas Company | Oklahoma City, OK 73132-5120 | Oil & Gas Operator | Mar 2015 |
| 4925 | Red River Oil Corporation | Alvarado, TX 76009-0449 | Oil & Gas Operator | Dec 2016 |
| 4926 | Red River Petroleum Inc | Tipton, OK 73570 | Oil Operator | Dec 2025 |
| 4927 | Red Rock Operating, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2015 |
| 4928 | Red Rock Resources, L.L.C. | Wichita Falls, TX 76310 | Oil & Gas Operator | Dec 2025 |
| 4929 | Red Rocks Oil & Gas Operating LLC | Oklahoma City, OK 73103-4821 | Oil & Gas Operator | Jan 2026 |
| 4930 | Red Sand Resources LLC | Ada, OK 74821 | Oil Operator | Dec 2025 |
| 4931 | Red Stone Resources LLC | Edmond, OK 73013 | Oil Operator | Jun 2023 |
| 4932 | Red Tail Properties, LLC | Tulsa, OK 74107-3443 | Oil Operator | Dec 2025 |
| 4933 | Red Wolf Operating LLC | Edmond, OK 73003-2179 | Oil & Gas Operator | Jan 2026 |
| 4934 | Redbird Oil Company | Bartlesville, OK 74005-2566 | Oil & Gas Operator | Mar 2015 |
| 4935 | Redbud E & P, Inc. | Giddings, TX 78942 | Oil & Gas Operator | Mar 2026 |
| 4936 | Redbud Oil & Gas | Nowata, OK 74048-0026 | Oil & Gas Operator | Dec 2000 |
| 4937 | Redbud Oil Company | Elmore City, OK 73433-8637 | Oil Operator | Dec 2025 |
| 4938 | Reddy Oil & Gas Corporation | Tulsa, OK 74108-5105 | Oil & Gas Operator | Jan 2026 |
| 4939 | Redfork Operations LLC | Dover, OK 73734 | Oil & Gas Operator | Jan 2026 |
| 4940 | Redgate Petroleum Inc | Waynoka, OK 73860-9408 | Oil & Gas Operator | Mar 2014 |
| 4941 | Redhen Oil Company | Oklahoma City, OK 73135 | Oil & Gas Operator | Sep 2024 |
| 4942 | Redhill Operating LLC | Duncan, OK 73533 | Oil & Gas Operator | Dec 2025 |
| 4943 | Redland Development LLC | Cashion, OK 73016-9625 | Oil & Gas Operator | May 2019 |
| 4944 | Redland Resources LLC | Oklahoma City, OK 73127 | Oil & Gas Operator | Jan 2026 |
| 4945 | Redline Energy LLC | Dover, OK 73734 | Oil & Gas Operator | Jan 2026 |
| 4946 | Redstone Oil & Gas Company | Dallas, TX 75225 | Oil & Gas Operator | Jan 2020 |
| 4947 | Redtail Investments LLC | Oklahoma City, OK 73179 | Oil & Gas Operator | Jan 2026 |
| 4948 | Redwine Resources Inc | Dallas, TX 75225 | Oil & Gas Operator | Feb 2015 |
| 4949 | Reed Power Tongs Inc | Seminole, OK 74818 | Oil & Gas Operator | Sep 2025 |
| 4950 | Reed Richard L | Shawnee, OK 74802-1462 | Oil Operator | Nov 1993 |
| 4951 | Reeder Energy Operating LLC | Dallas, TX 75206-4085 | Oil & Gas Operator | Dec 2021 |
| 4952 | Reeves Harold D | | Oil & Gas Operator | Apr 1992 |
| 4953 | Regal Petroleum Services, Inc. | Euless, TX 76039-1127 | Oil & Gas Operator | May 2015 |
| 4954 | Regency Exploration Inc | Oklahoma City, OK 73102-5605 | Oil & Gas Operator | Mar 1999 |
| 4955 | Regency Petroleum Inc | Jones, OK 73049-8724 | Oil & Gas Operator | Mar 1999 |
| 4956 | Regional Energy Corporation | Temple, TX 76503-1733 | Oil Operator | Mar 1996 |
| 4957 | Reid Williams Operating Inc | Shreveport, LA 71106-6223 | Oil & Gas Operator | Dec 2025 |
| 4958 | Reign Operating LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Jan 2026 |
| 4959 | Reliable Oil Industries Inc | Tulsa, OK 74133 | Oil & Gas Operator | Jul 2024 |
| 4960 | Reliance Trusts | Dallas, TX 75244 | Oil & Gas Operator | Nov 1995 |
| 4961 | Relm Energy Inc | Morris, OK 74445-2227 | Oil & Gas Operator | Feb 2021 |
| 4962 | Remco Energy Corporation | Independence, MO 64055 | Oil & Gas Operator | Nov 2009 |
| 4963 | Remnant Energy, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Mar 2026 |
| 4964 | Remo Production Co | Stillwater, OK 74074-9333 | Oil Operator | Apr 2014 |
| 4965 | Remora Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Mar 2026 |
| 4966 | Renaissance Petroleum Co LLC | Houston, TX 77058 | Oil & Gas Operator | Nov 2011 |
| 4967 | Rence Guy A | | Oil Operator | Jan 2013 |
| 4968 | Renco Energy Inc | Calgary, AB T2H 0H6 | Oil & Gas Operator | Feb 2025 |
| 4969 | Renegade Oil And Gas LLC | Helena, OK 73741-0162 | Oil & Gas Operator | Dec 2019 |
| 4970 | Renegade Operating Company | Aurora, CO 80016 | Oil & Gas Operator | Aug 2023 |
| 4971 | Renfroe Lyndol | Wilson, OK 73463-6631 | Oil Operator | May 2020 |
| 4972 | Reno Resources Inc | Boynton, OK 74422-9762 | Oil & Gas Operator | May 2015 |
| 4973 | Rensark Energy Company Inc | Oklahoma City, OK 73105-5208 | Oil & Gas Operator | Apr 2015 |
| 4974 | Renthol Oil LLC | Iowa Park, TX 76367-8101 | Oil & Gas Operator | Mar 2018 |
| 4975 | Reo Resources Inc | | Oil & Gas Operator | Apr 2018 |
| 4976 | Replay Energy Assets LLC | Oklahoma City, OK 73156 | Oil & Gas Operator | Dec 2025 |
| 4977 | Replay Resources LLC | Ada, OK 74820-6512 | Oil Operator | Nov 2022 |
| 4978 | Republic Energy Inc. | Decatur, TX 76234 | Oil & Gas Operator | Dec 2016 |
| 4979 | Republic Resources Corporation | Oklahoma City, OK 73102-3081 | Oil & Gas Operator | May 2021 |
| 4980 | Research Oil Company Inc | Norman, OK 73070-8776 | Oil & Gas Operator | Aug 2019 |
| 4981 | Reserve Acquisition Group | Tulsa, OK 74153 | Oil & Gas Operator | Dec 1993 |
| 4982 | Reserve Exploration Co. | Tulsa, OK 74135 | Oil & Gas Operator | Dec 2007 |
| 4983 | Reserve Management, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Mar 2026 |
| 4984 | Resolute Wyoming Inc | Denver, CO 80203 | Oil & Gas Operator | May 2018 |
| 4985 | Resource Dev Technology LLC | Morrison, CO 80465-5020 | Oil & Gas Operator | Jan 2017 |
| 4986 | Resource Development Inc | Stroud, OK 74079 | Oil & Gas Operator | Feb 2007 |
| 4987 | Resource Oil And Gas, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2026 |
| 4988 | Resource Operations Inc | Tulsa, OK 74157 | Oil & Gas Operator | May 2016 |
| 4989 | Resources Investment Corp | Denver, CO 80202 | Oil & Gas Operator | Sep 2018 |
| 4990 | Resources Operating Co Inc | Rogers, AR 72756 | Oil & Gas Operator | Oct 2025 |
| 4991 | Ret Oil Inc | Del City, OK 73115 | Oil & Gas Operator | Jan 2007 |
| 4992 | Revard Oil And Gas Properties Inc | | Oil & Gas Operator | Dec 2025 |
| 4993 | Revelation Gas & Oil Oklahoma LLC | Kansas City, KS 66103 | Oil & Gas Operator | Jul 2023 |
| 4994 | Revelation Resources | Cypress, TX 77410-2578 | Oil & Gas Operator | Dec 2025 |
| 4995 | Revere Corporation | Fort Smith, AR 72902-0908 | Oil & Gas Operator | Feb 2015 |
| 4996 | Review Oil & Gas Inc | Edmond, OK 73034-7648 | Oil & Gas Operator | Dec 2025 |
| 4997 | Revilo Exploration LLC | Edmond, OK 73034 | Oil & Gas Operator | Apr 2020 |
| 4998 | Revilo Exploration, Inc. | Richardson, TX 75081 | Oil & Gas Operator | Jul 2021 |
| 4999 | Revocable Inter VIvos Trust Of Delapp Frankie L | Bartlesville, OK 74006-0307 | Oil & Gas Operator | Feb 2020 |
| 5000 | Revolution Operating Company,LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jul 2024 |