| 5001 | R M S Oil & Gas | Amarillo, TX 79101-2445 | Oil & Gas Operator | Sep 1997 |
| 5002 | R R & M Oil | Okmulgee, OK 74447-8534 | Oil & Gas Operator | Oct 2015 |
| 5003 | R W Production Company Inc | Ada, OK 74821-2693 | Oil & Gas Operator | Apr 2011 |
| 5004 | R&K Oil Co. | Nocona, TX 76255 | Oil & Gas Operator | Apr 2025 |
| 5005 | R&R Production Company, LLC | Tulsa, OK 74137 | Oil & Gas Operator | Jan 2025 |
| 5006 | R.D. Oil Company | Austin, TX 78755 | Oil & Gas Operator | Apr 2025 |
| 5007 | R.E.J.A.S. Energy LLC | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2025 |
| 5008 | R360 Oklahoma LLC | The Woodlands, TX 77381 | Oil Operator | Jul 2021 |
| 5009 | Ra-Jac LLC | Norman, OK 73072 | Oil & Gas Operator | Feb 2025 |
| 5010 | Raad Investments LLC | Springer, OK 73458 | Oil & Gas Operator | Feb 2025 |
| 5011 | Rachael Exploration Corp | Traverse City, MI 49686 | Oil & Gas Operator | Apr 2001 |
| 5012 | Rackley Oil & Gas, LLC | Balko, OK 73931 | Oil & Gas Operator | Jan 2025 |
| 5013 | Radford Dale | Konawa, OK 74849-8828 | Oil & Gas Operator | Nov 2024 |
| 5014 | Raf Oil Company | Oklahoma City, OK 73120-1944 | Oil & Gas Operator | Jul 2013 |
| 5015 | Rafter H Operating LLC | El Reno, OK 73036 | Oil & Gas Operator | Jan 2025 |
| 5016 | Rahm Oil Company | Enid, OK 73703 | Oil & Gas Operator | Mar 2011 |
| 5017 | Rahmco Oil And Gas Co Inc | Ponca City, OK 74604-5155 | Oil & Gas Operator | Jan 2013 |
| 5018 | Rainbo Service Company | Oklahoma City, OK 73129 | Oil & Gas Operator | Jan 2025 |
| 5019 | Rainbow End Ranch | Okemah, OK 74859-9733 | Oil & Gas Operator | Apr 2020 |
| 5020 | Rainbow Energy Inc | | Oil & Gas Operator | Jul 2024 |
| 5021 | Rainbow Oil & Gas | Pawhuska, OK 74056-0056 | Oil Operator | Oct 2010 |
| 5022 | Rainbow Oil & Gas LLC | Coolville, OH 45723 | Oil & Gas Operator | Dec 2023 |
| 5023 | Rainbow Oil Company | | Oil & Gas Operator | Aug 1999 |
| 5024 | Rainbow Oilwell Service Inc | Depew, OK 74028 | Oil & Gas Operator | Jul 2024 |
| 5025 | Rainmaker Oil & Gas Corp | Oklahoma City, OK 73112-8883 | Oil & Gas Operator | Apr 2015 |
| 5026 | Rains And Williamson Oil Co. | Wichita, KS 67277 | Oil & Gas Operator | Dec 2024 |
| 5027 | Rainwater A L | Okmulgee, OK 74447 | Oil & Gas Operator | Jan 2013 |
| 5028 | Raizen Oil Company | Velma, OK 73091 | Oil & Gas Operator | Feb 2016 |
| 5029 | Raizen Oil LLC | Duncan, OK 73533-4657 | Oil & Gas Operator | Nov 2003 |
| 5030 | Raker Resources LLC | Houston, TX 77042 | Oil & Gas Operator | Apr 2025 |
| 5031 | Rako Operating Company | Fayetteville, AR 72701 | Oil & Gas Operator | Jan 2025 |
| 5032 | Ralph Dawson | | Oil Operator | Nov 2005 |
| 5033 | Ram Asset Management Co | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2015 |
| 5034 | Ram Energy LLC | Tulsa, OK 74152 | Oil & Gas Operator | Jan 2025 |
| 5035 | Ram Oil & Gas | Blackwell, OK 74631 | Oil & Gas Operator | May 2013 |
| 5036 | Rama Operating Co., Inc. | Stafford, KS 67578 | Oil & Gas Operator | Feb 2025 |
| 5037 | Rambler Oil Co | Oklahoma City, OK 73154 | Oil & Gas Operator | Jan 1999 |
| 5038 | Ramco Energy Corporation | FT. Lauderdale, FL 33312 | Oil & Gas Operator | Dec 2008 |
| 5039 | Ramco Oil & Gas Inc | Midland, TX 79701 | Oil & Gas Operator | Nov 2006 |
| 5040 | Ramco Oil Company | Pawhuska, OK 74056 | Oil & Gas Operator | Feb 2012 |
| 5041 | Ramey L E SR | Mounds, OK 74047 | Oil Operator | Jan 2000 |
| 5042 | Ramey Oil Corporation | Kiefer, OK 74041-0699 | Oil & Gas Operator | Mar 2021 |
| 5043 | Ramey Sharp N Glenn SD Unit | Tulsa, OK 74120 | Oil Operator | Nov 1998 |
| 5044 | Ramey Wayne | Mounds, OK 74047-0520 | Oil & Gas Operator | Jan 2025 |
| 5045 | Ramhead Petroleum Inc | Seminole, OK 74818-0848 | Oil & Gas Operator | Aug 2008 |
| 5046 | Rampage Energy Inc | Bristow, OK 74010-6415 | Oil & Gas Operator | Apr 2020 |
| 5047 | Ramsey Engineering Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | Apr 1993 |
| 5048 | Ramsey George H Estate | Ardmore, OK 73401-3644 | Oil & Gas Operator | Nov 2013 |
| 5049 | Ramsey Nichols Operating Company LLC | Oklahoma City, OK 73120-1955 | Oil & Gas Operator | Feb 2025 |
| 5050 | Ramsey Property Management LLC | Oklahoma City, OK 73120-1955 | Oil & Gas Operator | Dec 2024 |
| 5051 | Ramsey Property MGMT Inc | Oklahoma City, OK 73120-1955 | Oil & Gas Operator | Mar 2019 |
| 5052 | Ranch Creek Exploration LLC | Tulsa, OK 74136-6845 | Oil & Gas Operator | Oct 2024 |
| 5053 | Ranch Oil Company | West Linn, OR 97068 | Oil & Gas Operator | Mar 2025 |
| 5054 | Randall E James Oil Company | Guthrie, OK 73044-9352 | Oil & Gas Operator | Jan 2025 |
| 5055 | Randy And Jan Walker Oil Company LLC | Konawa, OK 74849-9333 | Oil & Gas Operator | Feb 2025 |
| 5056 | Randy Inc | Hennessey, OK 73742 | Oil & Gas Operator | Jan 2025 |
| 5057 | Range Production Company | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2021 |
| 5058 | Range Production Company, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jan 2025 |
| 5059 | Ranger Drilling LLC | Chicago, IL 60605-1041 | Oil & Gas Operator | Feb 2004 |
| 5060 | Ranger Systems Inc | Tulsa, OK 74145 | Oil Operator | Feb 2020 |
| 5061 | Ranken Energy Corporation | Edmond, OK 73013 | Oil & Gas Operator | Jan 2025 |
| 5062 | Raper Brice Oil Company LLC | Yale, OK 74085-6865 | Oil & Gas Operator | Apr 2015 |
| 5063 | Rapp Oil & Gas | Oklahoma City, OK 73120 | Gas Operator | Jul 2020 |
| 5064 | Rar Properties LLC | Duncan, OK 73533-5582 | Oil Operator | Feb 2025 |
| 5065 | Rasmussen, Hal J. Operating, Inc | Midland, TX 79701 | Oil & Gas Operator | Apr 2009 |
| 5066 | Ratex Resources Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | May 2000 |
| 5067 | Ratliff City Trucking Inc | Ratliff City, OK 73481-9603 | Oil & Gas Operator | Feb 2018 |
| 5068 | Ratliff Operating Corp. | Amarillo, TX 79105 | Oil & Gas Operator | Apr 2025 |
| 5069 | Ratts, Robert V. Inc. | Bedford, TX 76021 | Oil & Gas Operator | Aug 2003 |
| 5070 | Raven Oil & Gas Properties LLC | Alva, OK 73717 | Oil & Gas Operator | Dec 2014 |
| 5071 | Raven Petroleum Inc | Oklahoma City, OK 73120 | Oil Operator | Jan 1997 |
| 5072 | Raven Resources LLC | Oklahoma City, OK 73172 | Oil & Gas Operator | Jan 2025 |
| 5073 | Ravil Inc | Edmond, OK 73013 | Gas Operator | Nov 1998 |
| 5074 | Raw Crude Oil & Gas LLC | Norman, OK 73069 | Oil & Gas Operator | Feb 2025 |
| 5075 | Raw Production LLC | Lindsay, OK 73052 | Oil & Gas Operator | Feb 2025 |
| 5076 | Rawhide Oil Company | | Oil & Gas Operator | Sep 2011 |
| 5077 | Rawhide Operating, Inc. | New Braunfels, TX 78131 | Oil & Gas Operator | Apr 2025 |
| 5078 | Ray G H Oil Company | Chickasha, OK 73023-0650 | Oil Operator | Feb 2010 |
| 5079 | Ray Herman | Haskell, OK 74436-0446 | Oil & Gas Operator | Dec 2021 |
| 5080 | Ray Randy S | Okmulgee, OK 74447-8534 | Oil & Gas Operator | Apr 2015 |
| 5081 | Ray Roger T | Boynton, OK 74422 | Oil & Gas Operator | Dec 2021 |
| 5082 | Ray'S Oil Company | Boynton, OK 74422 | Oil & Gas Operator | Jan 2025 |
| 5083 | Raydon Exploration, Inc. | Oklahoma City, OK 73118 | Oil & Gas Operator | Apr 2025 |
| 5084 | Raydon Production Company | Oklahoma City, OK 73118 | Oil & Gas Operator | Feb 1992 |
| 5085 | Raye Oil Company | Velma, OK 73491-0482 | Oil & Gas Operator | Oct 2012 |
| 5086 | Rayland Operating LLC | Moro, IL 62067 | Oil Operator | Jun 2023 |
| 5087 | RB Operating Company | Shawnee, OK 74802-1488 | Oil & Gas Operator | Apr 2015 |
| 5088 | RBC Exploration Company | Tulsa, OK 74114 | Oil & Gas Operator | May 2013 |
| 5089 | RCK Oil And Gas LLC | Denton, TX 76207-6803 | Oil & Gas Operator | Jan 2025 |
| 5090 | RDH Enterprises, Inc. | El Reno, OK 73036 | Oil & Gas Operator | May 2015 |
| 5091 | Reach Oil And Gas Company Inc | Oklahoma City, OK 73118-1100 | Oil & Gas Operator | Jan 2025 |
| 5092 | Reading & Bates Petroleum Co | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2009 |
| 5093 | Reagan Production Inc | Terral, OK 73569 | Oil Operator | Jan 2025 |
| 5094 | Real Production Management LLC | Elmore City, OK 73433 | Oil Operator | Jan 2025 |
| 5095 | Reames Jr Keith E | Duncan, OK 73534-0246 | Oil & Gas Operator | Jul 1999 |
| 5096 | Rebel Oil Company | Keaton, KY 41226 | Oil & Gas Operator | Jan 2025 |
| 5097 | Rebellion Energy LLC | Tulsa, OK 74135-6241 | Oil & Gas Operator | Jun 2022 |
| 5098 | Red Bluff Resources Operating LLC | Oklahoma City, OK 73112-5468 | Oil & Gas Operator | Jan 2025 |
| 5099 | Red Buck Oil Co. | Copan, OK 74022-0215 | Oil Operator | Nov 2009 |
| 5100 | Red Creek Oil Co | | Oil & Gas Operator | Jun 1995 |