| 4901 | Ramco Oil Company | Pawhuska, OK 74056 | Oil & Gas Operator | Feb 2012 |
| 4902 | Ramey L E SR | Mounds, OK 74047 | Oil Operator | Jan 2000 |
| 4903 | Ramey Oil Corporation | Kiefer, OK 74041-0699 | Oil & Gas Operator | Mar 2021 |
| 4904 | Ramey Sharp N Glenn SD Unit | Tulsa, OK 74120 | Oil Operator | Nov 1998 |
| 4905 | Ramey Wayne | Mounds, OK 74047 | Oil & Gas Operator | May 2024 |
| 4906 | Ramhead Petroleum Inc | Seminole, OK 74818-0848 | Oil & Gas Operator | Aug 2008 |
| 4907 | Rampage Energy Inc | Bristow, OK 74010-6415 | Oil & Gas Operator | Apr 2020 |
| 4908 | Ramsey Engineering Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | Apr 1993 |
| 4909 | Ramsey George H Estate | Ardmore, OK 73401-3644 | Oil & Gas Operator | Nov 2013 |
| 4910 | Ramsey Nichols Operating Company LLC | Oklahoma City, OK 73120-1955 | Oil & Gas Operator | Jul 2024 |
| 4911 | Ramsey Property Management LLC | Oklahoma City, OK 73120-1955 | Oil & Gas Operator | Jun 2024 |
| 4912 | Ramsey Property MGMT Inc | Oklahoma City, OK 73120-1955 | Oil & Gas Operator | Mar 2019 |
| 4913 | Ranch Creek Exploration LLC | Tulsa, OK 74136-6845 | Oil & Gas Operator | Jun 2024 |
| 4914 | Ranch Oil Company | West Linn, OR 97068 | Oil & Gas Operator | Aug 2024 |
| 4915 | Randall E James Oil Company | Guthrie, OK 73044-9352 | Oil & Gas Operator | Jun 2024 |
| 4916 | Randy And Jan Walker Oil Company LLC | Konawa, OK 74849-9333 | Oil & Gas Operator | Jul 2024 |
| 4917 | Randy Inc | Hennessey, OK 73742 | Oil & Gas Operator | Jun 2024 |
| 4918 | Range Production Company | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2021 |
| 4919 | Range Production Company, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2024 |
| 4920 | Ranger Drilling LLC | Chicago, IL 60605-1041 | Oil & Gas Operator | Feb 2004 |
| 4921 | Ranger Systems Inc | Tulsa, OK 74145 | Oil Operator | Feb 2020 |
| 4922 | Ranken Energy Corporation | Edmond, OK 73013 | Oil & Gas Operator | Jun 2024 |
| 4923 | Raper Brice Oil Company LLC | Yale, OK 74085-6865 | Oil & Gas Operator | Apr 2015 |
| 4924 | Rapp Oil & Gas | Oklahoma City, OK 73120 | Gas Operator | Jul 2020 |
| 4925 | Rar Properties LLC | Duncan, OK 73533-5582 | Oil Operator | Jun 2024 |
| 4926 | Rasmussen, Hal J. Operating, Inc | Midland, TX 79701 | Oil & Gas Operator | Apr 2009 |
| 4927 | Ratex Resources Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | May 2000 |
| 4928 | Ratliff City Trucking Inc | Ratliff City, OK 73481-9603 | Oil & Gas Operator | Feb 2018 |
| 4929 | Ratliff Operating Corp. | Amarillo, TX 79105 | Oil & Gas Operator | Oct 2024 |
| 4930 | Ratts, Robert V. Inc. | Bedford, TX 76021 | Oil & Gas Operator | Aug 2003 |
| 4931 | Raven Petroleum Inc | Oklahoma City, OK 73120 | Oil Operator | Jan 1997 |
| 4932 | Raven Resources LLC | Oklahoma City, OK 73172 | Oil & Gas Operator | Jun 2024 |
| 4933 | Ravil Inc | Edmond, OK 73013 | Gas Operator | Nov 1998 |
| 4934 | Raw Crude Oil & Gas LLC | Norman, OK 73069 | Oil & Gas Operator | Jul 2024 |
| 4935 | Raw Production LLC | Lindsay, OK 73052 | Oil & Gas Operator | Jun 2024 |
| 4936 | Rawhide Oil Company | | Oil & Gas Operator | Sep 2011 |
| 4937 | Rawhide Operating, Inc. | New Braunfels, TX 78131 | Oil & Gas Operator | Oct 2024 |
| 4938 | Ray G H Oil Company | Chickasha, OK 73023-0650 | Oil Operator | Feb 2010 |
| 4939 | Ray Herman | Haskell, OK 74436-0446 | Oil & Gas Operator | Dec 2021 |
| 4940 | Ray Randy S | Okmulgee, OK 74447-8534 | Oil & Gas Operator | Apr 2015 |
| 4941 | Ray Roger T | Boynton, OK 74422 | Oil & Gas Operator | Dec 2021 |
| 4942 | Ray'S Oil Company | Boynton, OK 74422 | Oil & Gas Operator | Jun 2024 |
| 4943 | Raydon Exploration, Inc. | Oklahoma City, OK 73118 | Oil & Gas Operator | Oct 2024 |
| 4944 | Raydon Production Company | Oklahoma City, OK 73118 | Oil & Gas Operator | Feb 1992 |
| 4945 | Raye Oil Company | Velma, OK 73491-0482 | Oil & Gas Operator | Oct 2012 |
| 4946 | Rayland Operating LLC | Moro, IL 62067 | Oil Operator | Jun 2023 |
| 4947 | RB Operating Company | Shawnee, OK 74802-1488 | Oil & Gas Operator | Apr 2015 |
| 4948 | RBC Exploration Company | Tulsa, OK 74114 | Oil & Gas Operator | May 2013 |
| 4949 | RCK Oil And Gas LLC | Denton, TX 76207-6803 | Oil & Gas Operator | Jun 2024 |
| 4950 | RDH Enterprises, Inc. | El Reno, OK 73036 | Oil & Gas Operator | May 2015 |
| 4951 | Reach Oil And Gas Company Inc | Oklahoma City, OK 73118-1100 | Oil & Gas Operator | Jun 2024 |
| 4952 | Reading & Bates Petroleum Co | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2009 |
| 4953 | Reagan Production Inc | Terral, OK 73569 | Oil Operator | Jul 2024 |
| 4954 | Real Production Management LLC | Elmore City, OK 73433 | Oil Operator | Jun 2024 |
| 4955 | Reames Jr Keith E | Duncan, OK 73534-0246 | Oil & Gas Operator | Jul 1999 |
| 4956 | Rebel Oil Company | Keaton, KY 41226 | Oil & Gas Operator | Jul 2024 |
| 4957 | Rebellion Energy LLC | Tulsa, OK 74135-6241 | Oil & Gas Operator | Jun 2022 |
| 4958 | Red Bluff Resources Operating LLC | Oklahoma City, OK 73112-5468 | Oil & Gas Operator | Jun 2024 |
| 4959 | Red Buck Oil Co. | Copan, OK 74022-0215 | Oil Operator | Nov 2009 |
| 4960 | Red Creek Oil Co | | Oil & Gas Operator | Jun 1995 |
| 4961 | Red Dirt Environmental Services LLC | Checotah, OK 74426 | Gas Operator | Jun 2024 |
| 4962 | Red Eagle Oil Company | Oklahoma City, OK 73154 | Oil & Gas Operator | Mar 2005 |
| 4963 | Red Earth Oil & Gas, Inc. | Oklahoma City, OK 73159 | Oil & Gas Operator | Oct 2021 |
| 4964 | Red Fork (USA) Investments Inc | Midland, TX 79710-0272 | Oil & Gas Operator | May 2019 |
| 4965 | Red Fork Oil Co | Lakewood, CO 80215 | Oil & Gas Operator | Aug 1993 |
| 4966 | Red Fork Oil Production Inc | Mannford, OK 74044-0492 | Oil & Gas Operator | Feb 2017 |
| 4967 | Red Fork Production, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Jun 2024 |
| 4968 | Red Fork Valley Oil & Gas Co | Cushing, OK 74023 | Oil Operator | Dec 2014 |
| 4969 | Red Hawk Disposal LLC | Oklahoma City, OK 73172 | Oil Operator | Jun 2023 |
| 4970 | Red Hawk Resources Inc | Edmond, OK 73003-3207 | Oil & Gas Operator | Jul 2024 |
| 4971 | Red Mountain Operating LLC | Oklahoma City, OK 73118-1253 | Oil & Gas Operator | Apr 2024 |
| 4972 | Red Ox Resources LLC | Dumas, TX 79029 | Gas Operator | Jul 2024 |
| 4973 | Red Plains Oil & Gas LLC | Kingfisher, OK 73750 | Oil & Gas Operator | Oct 2017 |
| 4974 | Red River Fuels Inc | Bristow, OK 74010-2231 | Oil & Gas Operator | Mar 2008 |
| 4975 | Red River Oil & Gas Company | Oklahoma City, OK 73132-5120 | Oil & Gas Operator | Mar 2015 |
| 4976 | Red River Oil Corporation | Alvarado, TX 76009-0449 | Oil & Gas Operator | Dec 2016 |
| 4977 | Red River Petroleum Inc | Tipton, OK 73570-0351 | Oil Operator | Jun 2024 |
| 4978 | Red River Services LLC | Tulsa, OK 74136 | Gas Operator | Jan 2007 |
| 4979 | Red Rock Operating, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2015 |
| 4980 | Red Rock Resources, L.L.C. | Wichita Falls, TX 76310 | Oil & Gas Operator | Jun 2024 |
| 4981 | Red Rocks Oil & Gas Operating LLC | Oklahoma City, OK 73103-4821 | Oil & Gas Operator | Jul 2024 |
| 4982 | Red Sand Resources LLC | Ada, OK 74821 | Oil Operator | Jun 2024 |
| 4983 | Red Stone Resources LLC | Edmond, OK 73013 | Oil Operator | Jun 2023 |
| 4984 | Red Wolf Operating LLC | Edmond, OK 73003-2179 | Oil & Gas Operator | Jul 2024 |
| 4985 | Redbird Oil Company | Bartlesville, OK 74005-2566 | Oil & Gas Operator | Mar 2015 |
| 4986 | Redbud E & P, Inc. | Spring, TX 77379 | Oil & Gas Operator | Oct 2024 |
| 4987 | Redbud Oil & Gas | Nowata, OK 74048-0026 | Oil & Gas Operator | Dec 2000 |
| 4988 | Redbud Oil Company | Elmore City, OK 73433-8637 | Oil Operator | Jun 2024 |
| 4989 | Redcord C R | Louisville, KY 40243 | Oil Operator | Jun 2024 |
| 4990 | Reddy Oil & Gas Corporation | Tulsa, OK 74108-5105 | Oil & Gas Operator | Jul 2024 |
| 4991 | Redfork Operations LLC | Dover, OK 73734-9409 | Oil & Gas Operator | Jul 2024 |
| 4992 | Redgate Petroleum Inc | Waynoka, OK 73860-9408 | Oil & Gas Operator | Mar 2014 |
| 4993 | Redhen Oil Company | Oklahoma City, OK 73135 | Oil & Gas Operator | Jul 2024 |
| 4994 | Redhill Operating LLC | Duncan, OK 73533 | Oil Operator | Jul 2024 |
| 4995 | Redland Development LLC | Cashion, OK 73016-9625 | Oil & Gas Operator | May 2019 |
| 4996 | Redland Resources, LLC | Oklahoma City, OK 73127 | Oil & Gas Operator | Jul 2024 |
| 4997 | Redline Energy LLC | Dover, OK 73734 | Oil & Gas Operator | Jul 2024 |
| 4998 | Redrock Exploration, Inc | Plano, TX 75025 | Oil Operator | Jul 2014 |
| 4999 | Redstone Oil & Gas Company | Dallas, TX 75225 | Oil & Gas Operator | Jan 2020 |
| 5000 | Redtail Investments LLC | Oklahoma City, OK 73179 | Oil & Gas Operator | Jul 2024 |