| 1 | R Baker Oil LLC | Okemah, OK 74859 | Oil & Gas Operator | Jul 2026 |
| 2 | R R & M Oil | Okmulgee, OK 74447-8534 | Oil & Gas Operator | Oct 2015 |
| 3 | Rainbow Oil & Gas | Pawhuska, OK 74056-0056 | Oil Operator | Oct 2010 |
| 4 | Rainbow Oil & Gas LLC | Coolville, OH 45723 | Oil & Gas Operator | Dec 2025 |
| 5 | Ram Oil & Gas | Blackwell, OK 74631 | Oil & Gas Operator | May 2013 |
| 6 | Ramey Oil Corporation | Kiefer, OK 74041-0699 | Oil & Gas Operator | May 2026 |
| 7 | Ramey Wayne | Mounds, OK 74047 | Oil & Gas Operator | Jun 2026 |
| 8 | Rampage Energy Inc | Bristow, OK 74010-6415 | Oil & Gas Operator | Apr 2020 |
| 9 | Randy Inc | Hennessey, OK 73742 | Oil & Gas Operator | May 2026 |
| 10 | Raper Brice Oil Company LLC | Yale, OK 74085-6865 | Oil & Gas Operator | Apr 2015 |
| 11 | Ray Herman | Haskell, OK 74436-0446 | Oil & Gas Operator | Dec 2021 |
| 12 | Ray Randy S | Okmulgee, OK 74447-8534 | Oil & Gas Operator | Apr 2015 |
| 13 | Ray Roger T | Boynton, OK 74422 | Oil & Gas Operator | Dec 2021 |
| 14 | Ray'S Oil Company | Boynton, OK 74422 | Oil & Gas Operator | Jun 2026 |
| 15 | Red Buck Oil Company | Copan, OK 74022-0215 | Oil Operator | Nov 2009 |
| 16 | Red Fork Production, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Jun 2026 |
| 17 | Red River Oil & Gas Company | Oklahoma City, OK 73132-5120 | Oil & Gas Operator | Mar 2015 |
| 18 | Reddy Oil & Gas Corporation | Tulsa, OK 74108 | Oil & Gas Operator | Jun 2026 |
| 19 | Regal Petroleum Services Inc | Euless, TX 76039-1127 | Oil & Gas Operator | May 2015 |
| 20 | Regency Petroleum Inc | Jones, OK 73049-8724 | Oil & Gas Operator | Mar 1999 |
| 21 | Relm Energy Inc | Morris, OK 74445-2227 | Oil & Gas Operator | Feb 2021 |
| 22 | Resource Operations Inc | Tulsa, OK 74157 | Oil & Gas Operator | May 2016 |
| 23 | Ret Oil Inc | Del City, OK 73115 | Oil & Gas Operator | Jan 2007 |
| 24 | Revilo Exploration LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2020 |
| 25 | Revilo Exploration, Inc. | Richardson, TX 75081 | Oil & Gas Operator | Jul 2021 |
| 26 | Reynolds J W & Associates | Sapulpa, OK 74066 | Oil & Gas Operator | Dec 2000 |
| 27 | Rice Michael Lee | Beggs, OK 74421-2977 | Oil Operator | May 2026 |
| 28 | Richardson, Bud II | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 29 | Rick Pulliam Oil & Gas Inc | Bristow, OK 74010 | Oil & Gas Operator | Jun 2026 |
| 30 | Rife Oil Properties Inc | Fort Worth, TX 76107 | Oil & Gas Operator | Sep 2026 |
| 31 | Rixleben Thomas B Estate | Ada, OK 74820 | Oil & Gas Operator | Mar 2014 |
| 32 | Roadrunner Energy Inc | Tulsa, OK 74120 | Oil & Gas Operator | Mar 2015 |
| 33 | Roberson Oil Company | Houston, TX 77046 | Oil & Gas Operator | Jul 2026 |
| 34 | Roberts Herman | Henderson, NV 89014 | Oil Operator | Jul 2023 |
| 35 | Robertson Johnie J | Okmulgee, OK 74447-8765 | Oil & Gas Operator | Jun 2026 |
| 36 | Robinowitz Oil Company | Tulsa, OK 74136-1429 | Oil & Gas Operator | Feb 2023 |
| 37 | Rockin D Resources LLC | Bristow, OK 74010-4162 | Oil Operator | Jun 2026 |
| 38 | Rocking Chair Energy Partners LLC | Morris, OK 74445 | Oil & Gas Operator | Jun 2026 |
| 39 | Rockwell Drilling Company | New York, NY 10013 | Oil & Gas Operator | Dec 2005 |
| 40 | Rocky Top Energy LLC | Bartlesville, OK 74003 | Oil & Gas Operator | Sep 2025 |
| 41 | Roe Oil Company | Cushing, OK 74023-0086 | Oil & Gas Operator | Nov 2025 |
| 42 | Rogers Dan R | Okemah, OK 74847 | Oil & Gas Operator | Apr 2020 |
| 43 | Rogers, Cora L | | Oil Operator | Jun 2026 |
| 44 | Rongey Ira E | Sapulpa, OK 74066-9317 | Oil & Gas Operator | May 2013 |
| 45 | Rongey Oil | Jenks, OK 74037-3621 | Oil & Gas Operator | Jan 2013 |
| 46 | Rose Dan And Bill | Henryetta, OK 74437 | Oil & Gas Operator | Jun 2026 |
| 47 | Rose Rock Resources Inc | Wagoner, OK 74467-8362 | Oil & Gas Operator | Jun 2026 |
| 48 | Ross Bobby L | Okmulgee, OK 74447-8802 | Oil & Gas Operator | Apr 2020 |
| 49 | Rowe Energy | Beggs, OK 74421-0240 | Oil & Gas Operator | Mar 2015 |
| 50 | Rowe Stephen Oil Properties LLC | Hunt, TX 78024 | Oil & Gas Operator | Apr 2020 |
| 51 | Royal Oil & Gas Corp. | Indiana, PA 15701 | Oil & Gas Operator | Apr 2014 |
| 52 | Royalty Energy Development LLC | Edmond, OK 73003 | Oil & Gas Operator | Jul 2026 |
| 53 | Rupe Oil Company Inc | Wichita, KS 67278 | Oil & Gas Operator | May 2026 |
| 54 | Russell Carl G | Coweta, OK 74429 | Oil & Gas Operator | Mar 2015 |
| 55 | Russell D Meloy Oil & Gas Co | Enid, OK 73703-1623 | Oil & Gas Operator | Jun 2026 |