| 701 | Questar Explor & Prod Co | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2017 |
| 702 | R & A Moore, Inc. | Cleburne, TX 76033 | Oil & Gas Operator | Apr 2025 |
| 703 | R & B Trucking | Crescent, OK 73028-0775 | Oil & Gas Operator | Nov 2021 |
| 704 | R & H Production LLC | Cement, OK 73017 | Oil & Gas Operator | Oct 2021 |
| 705 | R & L Properties Inc | Richmond, MO 64085-0228 | Oil & Gas Operator | Apr 2001 |
| 706 | R & N Associates | Grapevine, TX 76051 | Oil & Gas Operator | Jan 2025 |
| 707 | R & N Oil Company | Fairfax, OK 74637 | Oil & Gas Operator | May 2013 |
| 708 | R E C Tulsa Corporation | Oklahoma City, OK 73107 | Oil & Gas Operator | Apr 2014 |
| 709 | Ra-Jac LLC | Norman, OK 73072 | Oil & Gas Operator | Feb 2025 |
| 710 | Raf Oil Company | Oklahoma City, OK 73120-1944 | Oil & Gas Operator | Jul 2013 |
| 711 | Ram Asset Management Co | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2015 |
| 712 | Ramco Oil & Gas Inc | Midland, TX 79701 | Oil & Gas Operator | Nov 2006 |
| 713 | Ramco Oil Company | Pawhuska, OK 74056 | Oil & Gas Operator | Feb 2012 |
| 714 | Ramsey Property MGMT Inc | Oklahoma City, OK 73120-1955 | Oil & Gas Operator | Mar 2019 |
| 715 | Randy Inc | Hennessey, OK 73742 | Oil & Gas Operator | Jan 2025 |
| 716 | Range Production Company | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2021 |
| 717 | Range Production Company, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jan 2025 |
| 718 | Rasmussen, Hal J. Operating, Inc | Midland, TX 79701 | Oil & Gas Operator | Apr 2009 |
| 719 | Raven Resources LLC | Oklahoma City, OK 73172 | Oil & Gas Operator | Jan 2025 |
| 720 | Raw Crude Oil & Gas LLC | Norman, OK 73069 | Oil & Gas Operator | Feb 2025 |
| 721 | RB Operating Company | Shawnee, OK 74802-1488 | Oil & Gas Operator | Apr 2015 |
| 722 | Reading & Bates Petroleum Co | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2009 |
| 723 | Rebellion Energy LLC | Tulsa, OK 74135-6241 | Oil & Gas Operator | Jun 2022 |
| 724 | Red Bluff Resources Operating LLC | Oklahoma City, OK 73112-5468 | Oil & Gas Operator | Jan 2025 |
| 725 | Red Eagle Oil Company | Oklahoma City, OK 73154 | Oil & Gas Operator | Mar 2005 |
| 726 | Red Hawk Disposal LLC | Oklahoma City, OK 73172 | Oil Operator | Jun 2023 |
| 727 | Red Plains Oil & Gas LLC | Kingfisher, OK 73750 | Oil & Gas Operator | Oct 2017 |
| 728 | Red Rock Resources, L.L.C. | Wichita Falls, TX 76310 | Oil & Gas Operator | Jan 2025 |
| 729 | Redfork Operations LLC | Dover, OK 73734-9409 | Oil & Gas Operator | Feb 2025 |
| 730 | Redland Resources, LLC | Oklahoma City, OK 73127 | Oil & Gas Operator | Feb 2025 |
| 731 | Redline Energy LLC | Dover, OK 73734 | Oil & Gas Operator | Feb 2025 |
| 732 | Regency Exploration Inc | Oklahoma City, OK 73102-5605 | Oil & Gas Operator | Mar 1999 |
| 733 | Republic Resources Corporation | Oklahoma City, OK 73102-3081 | Oil & Gas Operator | May 2021 |
| 734 | Revelation Resources | Cypress, TX 77410-2578 | Oil & Gas Operator | Jan 2025 |
| 735 | Review Oil & Gas Inc | Edmond, OK 73034-7648 | Oil & Gas Operator | Jan 2025 |
| 736 | Revolution Resources LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jun 2023 |
| 737 | Rhoades Oil Co | Tulsa, OK 74136-5575 | Oil & Gas Operator | Aug 2013 |
| 738 | Richard Charles J | | Oil & Gas Operator | May 1996 |
| 739 | Ricks Expl Acquisition LLC | Midland, TX 79701 | Oil & Gas Operator | Aug 2013 |
| 740 | Ricks Exploration Co | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 741 | Rife Oil Properties Inc | Fort Worth, TX 76107 | Oil & Gas Operator | Apr 2025 |
| 742 | Rio Blanco Operating LLC | Victoria, TX 77904 | Oil & Gas Operator | Jan 2025 |
| 743 | Riviera Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2025 |
| 744 | RKK Production Company | Mustang, OK 73064 | Oil & Gas Operator | Feb 2025 |
| 745 | Roan Resources LLC | Tulsa, OK 74103-3729 | Oil & Gas Operator | Apr 2024 |
| 746 | Robinowitz Oil Company | Tulsa, OK 74136-1429 | Oil & Gas Operator | Feb 2023 |
| 747 | Rocky Roads Operating LLC | Tulsa, OK 74103-4048 | Oil & Gas Operator | Feb 2025 |
| 748 | Rodman George Inc | Oklahoma City, OK 73101 | Oil & Gas Operator | Feb 1992 |
| 749 | Rodman Petroleum Corp. | Odessa, TX 79768 | Oil & Gas Operator | Jul 2023 |
| 750 | Roka Resources Inc | Oklahoma City, OK 73139 | Oil & Gas Operator | Jan 2025 |
| 751 | Ronan Company | Springfield, MO 65704 | Oil & Gas Operator | Aug 2013 |
| 752 | Rose Petroleum Corp | Oklahoma City, OK 73146 | Oil & Gas Operator | Feb 2015 |
| 753 | Ross Curtis | Ada, OK 74820-1354 | Oil & Gas Operator | Feb 2012 |
| 754 | Rowe Stephen Oil Properties LLC | Hunt, TX 78024 | Oil & Gas Operator | Apr 2020 |
| 755 | Rox Exploration Inc | Norman, OK 73069-6301 | Oil & Gas Operator | Feb 2025 |
| 756 | Royalty Energy Development LLC | Edmond, OK 73003 | Oil & Gas Operator | Feb 2025 |
| 757 | RR Oil Well Operations LLC | Ringwood, OK 73768 | Oil & Gas Operator | Feb 2025 |
| 758 | RTC Resources, LLP | Weatherford, OK 73096 | Oil & Gas Operator | Apr 2025 |
| 759 | Russell D Meloy Oil & Gas Co | Enid, OK 73703-1623 | Oil & Gas Operator | Jan 2025 |
| 760 | Ryan Petroleum Corp | Oklahoma City, OK 73102-9024 | Oil & Gas Operator | Aug 1994 |
| 761 | S & G Operating LLC | McLoud, OK 74851 | Oil & Gas Operator | Jan 2025 |
| 762 | S & J Operating Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2015 |
| 763 | S & S Star Operating LLC | Oklahoma City, OK 73101 | Oil & Gas Operator | Jun 2023 |
| 764 | S/H Petroleum Corporation | Hennessey, OK 73742-0477 | Oil & Gas Operator | Feb 2016 |
| 765 | Sabre Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2025 |
| 766 | Samson Hydrocarbons Company | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2016 |
| 767 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2025 |
| 768 | Sananco Energy Corp | Naples, FL 33941 | Oil & Gas Operator | Jul 2013 |
| 769 | Sandridge Energy, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2018 |
| 770 | Sandridge Exploration And Production LLC | Oklahoma City, OK 73104 | Oil & Gas Operator | Apr 2025 |
| 771 | Sanook Inc | Oklahoma City, OK 73156-0548 | Oil & Gas Operator | Jan 2007 |
| 772 | Santa Fe Minerals, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Sep 2013 |
| 773 | Santa Fe-Andover Oil Co | Tulsa, OK 74172 | Oil & Gas Operator | Sep 2000 |
| 774 | Scana Petroleum Resources Inc | Houston, TX 77002 | Oil & Gas Operator | Jun 2013 |
| 775 | Scana Production Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2005 |
| 776 | Schell Sam H | Barnsdall, OK 74002 | Oil & Gas Operator | Aug 1999 |
| 777 | Scout Energy Corporation | Edmond, OK 73083-1348 | Oil & Gas Operator | Jan 2025 |
| 778 | Seagull Energy E & P Inc | Houston, TX 77002 | Oil & Gas Operator | Jan 2015 |
| 779 | Seagull Mid-South Inc | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 780 | Seagull Midcon Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 781 | Seahawk Oil International Inc | Newport Beach, CA 92660 | Oil & Gas Operator | Oct 1997 |
| 782 | Seals And Brown Oil Operating | Norman, OK 73072-3020 | Oil & Gas Operator | Sep 2024 |
| 783 | Seaport Inc | Oklahoma City, OK 73131 | Oil & Gas Operator | Jan 2025 |
| 784 | Search Drilling Company | Houston, TX 77010 | Oil & Gas Operator | Feb 2001 |
| 785 | Sears Joe M | Bethany, OK 730084841 | Oil & Gas Operator | May 2013 |
| 786 | Sears M N | Oklahoma City, OK 73143 | Oil & Gas Operator | Apr 2015 |
| 787 | Seely Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2025 |
| 788 | Senora Oil & Gas Co | | Gas Operator | Aug 2001 |
| 789 | Sensor Oil & Gas Inc | Duncan, OK 73534 | Oil & Gas Operator | May 2013 |
| 790 | Sentinel Petroleum Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2020 |
| 791 | Sequent Exploration Inc | | Oil & Gas Operator | Oct 2017 |
| 792 | Seven J Oil Inc | Jenning, OK 74038-9729 | Oil & Gas Operator | Jan 2025 |
| 793 | Shar Alan Oil Company | | Oil & Gas Operator | Oct 2005 |
| 794 | Shaver Tommy L | Kingfisher, OK 73750-9612 | Oil & Gas Operator | Apr 2015 |
| 795 | Shaw Thomas P | Tulsa, OK 74105-7327 | Oil & Gas Operator | Mar 2015 |
| 796 | Shell Trading Us Company | Houston, TX 77210 | Oil & Gas Operator | Jan 2025 |
| 797 | Shelly Energy Inc. | Berwyn, PA 19312 | Oil & Gas Operator | Feb 2025 |
| 798 | Shoreline Operating LLC | Oklahoma City, OK 73113 | Oil & Gas Operator | Jan 2025 |
| 799 | Sidwell Oil & Gas, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Sep 2014 |
| 800 | Silver Creek Oil & Gas, LLC | Flower Mound, TX 75022 | Oil & Gas Operator | Apr 2025 |