| 1 | R & B Oil & Gas, Inc. | Attica, KS 67009 | Oil & Gas Operator | Dec 2023 |
| 2 | R B Energy, Inc | Manchester, KY 40962 | Oil & Gas Operator | Jan 2015 |
| 3 | R Baker Oil LLC | Okemah, OK 74859-0621 | Oil & Gas Operator | Feb 2024 |
| 4 | R C Taylor Operating Company LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Feb 2024 |
| 5 | R H S Inc | Ada, OK 74821-1252 | Oil & Gas Operator | Apr 2020 |
| 6 | R J Exploration LLC | | Oil & Gas Operator | Feb 2024 |
| 7 | R K R Exploration | Seminole, OK 74868-9754 | Oil & Gas Operator | Mar 2015 |
| 8 | R W Production Company Inc | Ada, OK 74821-2693 | Oil & Gas Operator | Apr 2011 |
| 9 | Ra-Jac LLC | Norman, OK 73070-4656 | Oil & Gas Operator | Feb 2024 |
| 10 | Radford Dale | Konawa, OK 74849-8828 | Oil & Gas Operator | Nov 2023 |
| 11 | Raf Oil Company | Oklahoma City, OK 73120-1944 | Oil & Gas Operator | Jul 2013 |
| 12 | Rainbow Oil & Gas | Pawhuska, OK 74056-0056 | Oil Operator | Oct 2010 |
| 13 | Rainbow Oil & Gas LLC | Coolville, OH 45723 | Oil & Gas Operator | May 2023 |
| 14 | Ram Energy LLC | Tulsa, OK 74114 | Oil & Gas Operator | Jan 2024 |
| 15 | Rampage Energy Inc | Bristow, OK 74010-6415 | Oil & Gas Operator | Apr 2020 |
| 16 | Ramsey Property Management LLC | Oklahoma City, OK 73120-1955 | Oil & Gas Operator | Jan 2024 |
| 17 | Ramsey Property MGMT Inc | Oklahoma City, OK 73120-1955 | Oil & Gas Operator | Mar 2019 |
| 18 | Randy And Jan Walker Oil Company LLC | Konawa, OK 74849-9333 | Oil & Gas Operator | Feb 2024 |
| 19 | Ranken Energy Corporation | Edmond, OK 73013 | Oil & Gas Operator | Jan 2024 |
| 20 | Raper Brice Oil Company LLC | Yale, OK 74085-6865 | Oil & Gas Operator | Apr 2015 |
| 21 | Ravil Inc | Edmond, OK 73013 | Gas Operator | Nov 1998 |
| 22 | Rayland Operating LLC | | Oil Operator | Jun 2023 |
| 23 | Red Creek Oil Co | | Oil & Gas Operator | Jun 1995 |
| 24 | Red Hawk Disposal LLC | | Oil Operator | Jun 2023 |
| 25 | Red River Oil & Gas Company | Oklahoma City, OK 73132-5120 | Oil & Gas Operator | Mar 2015 |
| 26 | Redbud E & P, Inc. | Spring, TX 77379 | Oil & Gas Operator | Apr 2024 |
| 27 | Reed Power Tongs Inc | Seminole, OK 74818-1462 | Oil & Gas Operator | Jan 2024 |
| 28 | Reed Richard L | Shawnee, OK 74802-1462 | Oil Operator | Nov 1993 |
| 29 | Regal Petroleum Services, Inc. | Euless, TX 76039-1127 | Oil & Gas Operator | May 2015 |
| 30 | Reid Williams Operating Inc | Shreveport, LA 71106-6223 | Oil & Gas Operator | Jan 2024 |
| 31 | Renco Energy Inc | Calgary, AB T2H 0H6 | Oil & Gas Operator | Jan 2024 |
| 32 | Research Oil Company Inc | Norman, OK 73070-8776 | Oil & Gas Operator | Aug 2019 |
| 33 | Revere Corporation | Fort Smith, AR 72902-0908 | Oil & Gas Operator | Feb 2015 |
| 34 | Revilo Exploration LLC | | Oil & Gas Operator | Apr 2020 |
| 35 | Revilo Exploration, Inc. | Richardson, TX 75081 | Oil & Gas Operator | Jul 2021 |
| 36 | Richardson, Bud II | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 37 | Rife Oil Properties Inc | Fort Worth, TX 76107 | Oil & Gas Operator | Apr 2024 |
| 38 | River City Resources, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Nov 1997 |
| 39 | River Valley Oil LLC | | Oil Operator | Feb 2024 |
| 40 | Rives Owen H | Holdenville, OK 74848-0913 | Oil & Gas Operator | Nov 2000 |
| 41 | Riviera Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2024 |
| 42 | Rixleben Jeffrey | West Chicago, IL 60186-0978 | Oil Operator | Feb 2016 |
| 43 | Rixleben Thomas B Estate | Ada, OK 74820 | Oil & Gas Operator | Mar 2014 |
| 44 | RKR Exploration Inc | Seminole, OK 74868-1688 | Oil & Gas Operator | Jan 2024 |
| 45 | Roberson David A | Ada, OK 74821-0008 | Oil & Gas Operator | Jul 2010 |
| 46 | Roberson Oil Company | Houston, TX 77046 | Oil & Gas Operator | Jan 2024 |
| 47 | Robson & Shults Prod Corp | Mannford, OK 74044 | Oil & Gas Operator | Jun 1995 |
| 48 | Rockwell Drilling Company | New York, NY 10013 | Oil & Gas Operator | Dec 2005 |
| 49 | Rodman Petroleum Corp. | Odessa, TX 79768 | Oil & Gas Operator | Jul 2023 |
| 50 | Roemer Oil Company | Denver, CO 80202 | Oil & Gas Operator | Nov 1998 |
| 51 | Rogers Dan R | Okemah, OK 74847 | Oil & Gas Operator | Apr 2020 |
| 52 | Rogers Jerry L | Cushing, OK 74023-0911 | Oil & Gas Operator | Mar 2017 |
| 53 | Ronan Company | Springfield, MO 65704 | Oil & Gas Operator | Aug 2013 |
| 54 | Rose Rock Resources Inc | Wagoner, OK 74467-8362 | Oil & Gas Operator | Jan 2024 |
| 55 | Rover Operating, LLC | Plano, TX 75075 | Oil & Gas Operator | Feb 2024 |
| 56 | Royal Oaks Petroleum Corp | Fort Worth, TX 76116 | Oil & Gas Operator | Dec 2001 |
| 57 | Rumley Robert A & Associates | Tulsa, OK 74135-1907 | Oil Operator | Nov 2023 |
| 58 | Rupe Oil Company, Inc. | Wichita, KS 67278 | Oil & Gas Operator | Dec 2023 |
| 59 | Russell D Meloy Oil & Gas Co | Enid, OK 73703-1623 | Oil & Gas Operator | Feb 2024 |
| 60 | Rwit Company Inc | Tulsa, OK 74131-4255 | Oil & Gas Operator | Jul 2018 |