| 4801 | Red River Oil Corporation | Alvarado, TX 76009-0449 | Oil & Gas Operator | Dec 2016 |
| 4802 | Red River Petroleum Inc | Tipton, OK 73570 | Oil Operator | Jan 2026 |
| 4803 | Red Rock Operating, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2015 |
| 4804 | Red Rock Resources, L.L.C. | Wichita Falls, TX 76310 | Oil & Gas Operator | Jan 2026 |
| 4805 | Red Rocks Oil & Gas Operating LLC | Oklahoma City, OK 73103 | Oil & Gas Operator | Mar 2026 |
| 4806 | Red Sand Resources LLC | Ada, OK 74821 | Oil Operator | Feb 2026 |
| 4807 | Red Stone Resources LLC | Edmond, OK 73013 | Oil Operator | Jun 2023 |
| 4808 | Red Tail Properties, LLC | Tulsa, OK 74107-3443 | Oil Operator | Jan 2026 |
| 4809 | Red Wolf Operating LLC | Edmond, OK 73003-2179 | Oil & Gas Operator | Feb 2026 |
| 4810 | Redbird Oil Company | Bartlesville, OK 74005-2566 | Oil & Gas Operator | Mar 2015 |
| 4811 | Redbud E & P, Inc. | Giddings, TX 78942 | Oil & Gas Operator | May 2026 |
| 4812 | Redbud Oil & Gas | Nowata, OK 74048-0026 | Oil & Gas Operator | Dec 2000 |
| 4813 | Redbud Oil Company | Elmore City, OK 73433-8637 | Oil Operator | Jan 2026 |
| 4814 | Reddy Oil & Gas Corporation | Tulsa, OK 74108-5105 | Oil & Gas Operator | Feb 2026 |
| 4815 | Redfork Operations LLC | Dover, OK 73734 | Oil & Gas Operator | Feb 2026 |
| 4816 | Redgate Petroleum Inc | Waynoka, OK 73860-9408 | Oil & Gas Operator | Mar 2014 |
| 4817 | Redhen Oil Company | Oklahoma City, OK 73135 | Oil & Gas Operator | Sep 2024 |
| 4818 | Redhill Operating LLC | Duncan, OK 73533 | Oil & Gas Operator | Feb 2026 |
| 4819 | Redland Development LLC | Cashion, OK 73016-9625 | Oil & Gas Operator | May 2019 |
| 4820 | Redland Resources LLC | Oklahoma City, OK 73127 | Oil & Gas Operator | Feb 2026 |
| 4821 | Redline Energy LLC | Dover, OK 73734 | Oil & Gas Operator | Feb 2026 |
| 4822 | Redstone Oil & Gas Company | Dallas, TX 75225 | Oil & Gas Operator | Jan 2020 |
| 4823 | Redtail Investments LLC | Oklahoma City, OK 73179 | Oil & Gas Operator | Feb 2026 |
| 4824 | Redwine Resources Inc | Dallas, TX 75225 | Oil & Gas Operator | Feb 2015 |
| 4825 | Reed Power Tongs Inc | Seminole, OK 74818 | Oil & Gas Operator | Sep 2025 |
| 4826 | Reed Richard L | Shawnee, OK 74802-1462 | Oil Operator | Nov 1993 |
| 4827 | Reeder Energy Operating LLC | Dallas, TX 75206-4085 | Oil & Gas Operator | Dec 2021 |
| 4828 | Reeves Harold D | | Oil & Gas Operator | Apr 1992 |
| 4829 | Regal Petroleum Services, Inc. | Euless, TX 76039-1127 | Oil & Gas Operator | May 2015 |
| 4830 | Regency Exploration Inc | Oklahoma City, OK 73102-5605 | Oil & Gas Operator | Mar 1999 |
| 4831 | Regency Petroleum Inc | Jones, OK 73049-8724 | Oil & Gas Operator | Mar 1999 |
| 4832 | Regional Energy Corporation | Temple, TX 76503-1733 | Oil Operator | Mar 1996 |
| 4833 | Reid Williams Operating Inc | Shreveport, LA 71106-6223 | Oil & Gas Operator | Jan 2026 |
| 4834 | Reign Operating LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Jan 2026 |
| 4835 | Reliable Oil Industries Inc | Tulsa, OK 74133 | Oil & Gas Operator | Jul 2024 |
| 4836 | Reliance Trusts | Dallas, TX 75244 | Oil & Gas Operator | Nov 1995 |
| 4837 | Relm Energy Inc | Morris, OK 74445-2227 | Oil & Gas Operator | Feb 2021 |
| 4838 | Remco Energy Corporation | Independence, MO 64055 | Oil & Gas Operator | Nov 2009 |
| 4839 | Remnant Energy, Inc. | Perryton, TX 79070 | Oil & Gas Operator | May 2026 |
| 4840 | Remo Production Co | Stillwater, OK 74074-9333 | Oil Operator | Apr 2014 |
| 4841 | Remora Operating LLC | Houston, TX 77056 | Oil & Gas Operator | May 2026 |
| 4842 | Renaissance Petroleum Co LLC | Houston, TX 77058 | Oil & Gas Operator | Nov 2011 |
| 4843 | Rence Guy A | | Oil Operator | Jan 2013 |
| 4844 | Renco Energy Inc | Calgary, AB T2H 0H6 | Oil & Gas Operator | Feb 2025 |
| 4845 | Renegade Oil And Gas LLC | Helena, OK 73741-0162 | Oil & Gas Operator | Dec 2019 |
| 4846 | Renegade Operating Company | Aurora, CO 80016 | Oil & Gas Operator | Aug 2023 |
| 4847 | Renfroe Lyndol | Wilson, OK 73463-6631 | Oil Operator | May 2020 |
| 4848 | Reno Resources Inc | Boynton, OK 74422-9762 | Oil & Gas Operator | May 2015 |
| 4849 | Rensark Energy Company Inc | Oklahoma City, OK 73105-5208 | Oil & Gas Operator | Apr 2015 |
| 4850 | Reo Resources Inc | | Oil & Gas Operator | Apr 2018 |
| 4851 | Replay Energy Assets LLC | Oklahoma City, OK 73156 | Oil & Gas Operator | Feb 2026 |
| 4852 | Replay Resources LLC | Ada, OK 74820-6512 | Oil Operator | Nov 2022 |
| 4853 | Republic Energy Inc. | Decatur, TX 76234 | Oil & Gas Operator | Dec 2016 |
| 4854 | Republic Resources Corporation | Oklahoma City, OK 73102-3081 | Oil & Gas Operator | May 2021 |
| 4855 | Research Oil Company Inc | Norman, OK 73070-8776 | Oil & Gas Operator | Aug 2019 |
| 4856 | Reserve Acquisition Group | Tulsa, OK 74153 | Oil & Gas Operator | Dec 1993 |
| 4857 | Reserve Exploration Co. | Tulsa, OK 74135 | Oil & Gas Operator | Dec 2007 |
| 4858 | Reserve Management, Inc. | Tyler, TX 75711 | Oil & Gas Operator | May 2026 |
| 4859 | Resolute Wyoming Inc | Denver, CO 80203 | Oil & Gas Operator | May 2018 |
| 4860 | Resource Dev Technology LLC | Morrison, CO 80465-5020 | Oil & Gas Operator | Jan 2017 |
| 4861 | Resource Development Inc | Stroud, OK 74079 | Oil & Gas Operator | Feb 2007 |
| 4862 | Resource Oil And Gas, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | May 2026 |
| 4863 | Resource Operations Inc | Tulsa, OK 74157 | Oil & Gas Operator | May 2016 |
| 4864 | Resources Investment Corp | Denver, CO 80202 | Oil & Gas Operator | Sep 2018 |
| 4865 | Resources Operating Co Inc | Rogers, AR 72756 | Oil & Gas Operator | Oct 2025 |
| 4866 | Ret Oil Inc | Del City, OK 73115 | Oil & Gas Operator | Jan 2007 |
| 4867 | Revard Oil And Gas Properties Inc | | Oil & Gas Operator | Feb 2026 |
| 4868 | Revelation Gas & Oil Oklahoma LLC | Kansas City, KS 66103 | Oil & Gas Operator | Jul 2023 |
| 4869 | Revelation Resources | Cypress, TX 77410-2578 | Oil & Gas Operator | Jan 2026 |
| 4870 | Revere Corporation | Fort Smith, AR 72902-0908 | Oil & Gas Operator | Feb 2015 |
| 4871 | Review Oil & Gas Inc | Edmond, OK 73034-7648 | Oil & Gas Operator | Jan 2026 |
| 4872 | Revilo Exploration LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2020 |
| 4873 | Revilo Exploration, Inc. | Richardson, TX 75081 | Oil & Gas Operator | Jul 2021 |
| 4874 | Revocable Inter VIvos Trust Of Delapp Frankie L | Bartlesville, OK 74006-0307 | Oil & Gas Operator | Feb 2020 |
| 4875 | Revolution Operating Company,LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jul 2024 |
| 4876 | Revolution Resources LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jun 2023 |
| 4877 | Reynolds J W & Associates | Sapulpa, OK 74066 | Oil & Gas Operator | Dec 2000 |
| 4878 | RF Operating And Supply Inc | | Oil & Gas Operator | Feb 2013 |
| 4879 | Rhino Operating Company LLC | Brentwood, TN 37027-8760 | Oil & Gas Operator | Jan 2026 |
| 4880 | Rhoades Oil Co | Tulsa, OK 74136-5575 | Oil & Gas Operator | Aug 2013 |
| 4881 | Rhoads Brothers Oil & Gas Inc | Tulsa, OK 74136 | Oil & Gas Operator | May 1996 |
| 4882 | Rhoads Mark Operations | Ponca City, OK 74604 | Oil & Gas Operator | May 2006 |
| 4883 | Rhodes-Fielding Corporation | Oklahoma City, OK 73134 | Oil & Gas Operator | Mar 2025 |
| 4884 | Ric Petroleum, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2003 |
| 4885 | Rice Michael Lee | Beggs, OK 74421-2977 | Oil Operator | Jul 2025 |
| 4886 | Rice Oil Co | Hobbs, NM 88240 | Oil & Gas Operator | Dec 2020 |
| 4887 | Rice Patricia Dba Rice Oil | Duncan, OK 73533-1888 | Oil Operator | Jan 2021 |
| 4888 | Richard C Sullins Credit Shelter Trust | Perry, OK 73077 | Gas Operator | Feb 2025 |
| 4889 | Richard Charles J | | Oil & Gas Operator | May 1996 |
| 4890 | Richard W Thompson Inc | Plano, TX 75075 | Oil & Gas Operator | Jul 2019 |
| 4891 | Richardson Oil Company | San Antonio, TX 78216 | Oil & Gas Operator | Aug 2003 |
| 4892 | Richardson WM S | Duncan, OK 73533 | Oil Operator | Jun 2013 |
| 4893 | Richardson, Bud II | Graham, TX 76450 | Oil & Gas Operator | May 2026 |
| 4894 | Richart Oil Company Inc | Oklahoma City, OK 73154-0631 | Oil & Gas Operator | Aug 1995 |
| 4895 | Richland Energy Corporation | Tulsa, OK 74103-4441 | Oil Operator | Jul 1995 |
| 4896 | Richland Resources Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | May 2026 |
| 4897 | Rick Pulliam Oil & Gas Inc | Bristow, OK 74010 | Oil & Gas Operator | Jan 2026 |
| 4898 | Ricks Consulting LLC | Copan, OK 74022 | Oil Operator | Dec 2025 |
| 4899 | Ricks Expl Acquisition Corp | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2004 |
| 4900 | Ricks Expl Acquisition LLC | Midland, TX 79701 | Oil & Gas Operator | Aug 2013 |