| 801 | PRDJ Cockrum Enterprises, Inc. | Okemah, OK 74859-5126 | Oil & Gas Operator | Mar 2022 |
| 802 | Price J R Inc | Addington, OK 73520-0099 | Oil & Gas Operator | Apr 2015 |
| 803 | Producers Oil Company | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2007 |
| 804 | Proex Energy Management, L.L.C. | Spring, TX 77386 | Oil & Gas Operator | Jun 2026 |
| 805 | Prosperous Oil & Gas Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Feb 2026 |
| 806 | Proven Reserves Management, Inc. | Dallas, TX 75370 | Oil & Gas Operator | Feb 2026 |
| 807 | Pryor VIctor W Jr | Holdenville, OK 74848 | Oil & Gas Operator | Apr 2017 |
| 808 | Pulliam Dennis L | Mannford, OK 74044-9733 | Oil & Gas Operator | Nov 2001 |
| 809 | Pulliam Ken D | Bristow, OK 74010-8648 | Oil & Gas Operator | Feb 2012 |
| 810 | Pulliam Melvin | Mannford, OK 74044 | Oil & Gas Operator | Jul 2019 |
| 811 | Puma Petroleum Corporation | Tulsa, OK 74152-0129 | Oil Operator | Feb 2004 |
| 812 | Pure Oil Co | | Oil & Gas Operator | Dec 1996 |
| 813 | Quad Operating Company | Bulverde, TX 78163 | Oil & Gas Operator | Jan 2026 |
| 814 | Quanah Company | Tulsa, OK 74159-0469 | Oil & Gas Operator | May 2020 |
| 815 | Quarles Drilling Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2008 |
| 816 | Quinton Rental & Repair Serv Inc | Quinton, OK 74561-0432 | Oil & Gas Operator | Mar 2015 |
| 817 | R & D Oil & Gas | Exeter, CA 93221-9697 | Oil & Gas Operator | Aug 2019 |
| 818 | R & S Resource LLC | Kellyville, OK 74039 | Oil Operator | Dec 2025 |
| 819 | R D T Properties | Tulsa, OK 74105-7122 | Oil & Gas Operator | Sep 2017 |
| 820 | R&R Production Company, LLC | Tulsa, OK 74137 | Oil & Gas Operator | Mar 2026 |
| 821 | Rahmco Oil And Gas Co Inc | Ponca City, OK 74604-5155 | Oil & Gas Operator | Jan 2013 |
| 822 | Rainbow End Ranch | Okemah, OK 74859-9733 | Oil & Gas Operator | Apr 2020 |
| 823 | Rainbow Oilwell Service Inc | Depew, OK 74028 | Oil & Gas Operator | Jul 2024 |
| 824 | Ram Energy LLC | Tulsa, OK 74152 | Oil & Gas Operator | Mar 2026 |
| 825 | Rama Operating Company Inc | Stafford, KS 67578 | Oil & Gas Operator | Mar 2026 |
| 826 | Ramey L E SR | Mounds, OK 74047 | Oil Operator | Jan 2000 |
| 827 | Ramey Oil Corporation | Kiefer, OK 74041-0699 | Oil & Gas Operator | Feb 2026 |
| 828 | Ramey Sharp N Glenn SD Unit | Tulsa, OK 74120 | Oil Operator | Nov 1998 |
| 829 | Ramey Wayne | Mounds, OK 74047 | Oil & Gas Operator | Feb 2026 |
| 830 | Rampage Energy Inc | Bristow, OK 74010-6415 | Oil & Gas Operator | Apr 2020 |
| 831 | Randy Inc | Hennessey, OK 73742 | Oil & Gas Operator | Jan 2026 |
| 832 | Raper Brice Oil Company LLC | Yale, OK 74085-6865 | Oil & Gas Operator | Apr 2015 |
| 833 | Ravil Inc | Edmond, OK 73013 | Gas Operator | Nov 1998 |
| 834 | RBC Exploration Company | Tulsa, OK 74114 | Oil & Gas Operator | May 2013 |
| 835 | RCK Oil And Gas LLC | Denton, TX 76207 | Oil & Gas Operator | Mar 2026 |
| 836 | RDH Enterprises Inc | El Reno, OK 73036 | Oil & Gas Operator | May 2015 |
| 837 | Red Fork Oil Production Inc | Mannford, OK 74044-0492 | Oil & Gas Operator | Feb 2017 |
| 838 | Red Fork Production, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Feb 2026 |
| 839 | Red River Fuels Inc | Bristow, OK 74010-2231 | Oil & Gas Operator | Mar 2008 |
| 840 | Red Stone Resources LLC | Edmond, OK 73013 | Oil Operator | Jun 2023 |
| 841 | Reddy Oil & Gas Corporation | Tulsa, OK 74108-5105 | Oil & Gas Operator | Feb 2026 |
| 842 | Redland Resources LLC | Oklahoma City, OK 73127 | Oil & Gas Operator | Mar 2026 |
| 843 | Redtail Investments LLC | Oklahoma City, OK 73179 | Oil & Gas Operator | Mar 2026 |
| 844 | Regency Petroleum Inc | Jones, OK 73049-8724 | Oil & Gas Operator | Mar 1999 |
| 845 | Reliable Oil Industries Inc | Tulsa, OK 74133 | Oil & Gas Operator | Jul 2024 |
| 846 | Remco Energy Corporation | Independence, MO 64055 | Oil & Gas Operator | Nov 2009 |
| 847 | Reserve Exploration Co. | Tulsa, OK 74135 | Oil & Gas Operator | Dec 2007 |
| 848 | Reserve Management, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Jun 2026 |
| 849 | Revelation Resources | Cypress, TX 77410-2578 | Oil & Gas Operator | Feb 2026 |
| 850 | Revilo Exploration, Inc. | Richardson, TX 75081 | Oil & Gas Operator | Jul 2021 |
| 851 | Reynolds J W & Associates | Sapulpa, OK 74066 | Oil & Gas Operator | Dec 2000 |
| 852 | Rhoades Oil Co | Tulsa, OK 74136-5575 | Oil & Gas Operator | Aug 2013 |
| 853 | Rhodes-Fielding Corporation | Oklahoma City, OK 73134 | Oil & Gas Operator | Mar 2025 |
| 854 | Ric Petroleum, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2003 |
| 855 | Richart Oil Company Inc | Oklahoma City, OK 73154-0631 | Oil & Gas Operator | Aug 1995 |
| 856 | Richland Resources Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Jun 2026 |
| 857 | Rick Pulliam Oil & Gas Inc | Bristow, OK 74010 | Oil & Gas Operator | Feb 2026 |
| 858 | Riviera Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2026 |
| 859 | Roberson, Joe | Vernon, TX 76385 | Oil & Gas Operator | Feb 2015 |
| 860 | Robinowitz Oil Company | Tulsa, OK 74136-1429 | Oil & Gas Operator | Feb 2023 |
| 861 | Robson & Shults Prod Corp | Mannford, OK 74044 | Oil & Gas Operator | Jun 1995 |
| 862 | Rock Oil Company | Broken Arrow, OK 74014-6106 | Oil & Gas Operator | Mar 2026 |
| 863 | Rocky Roads Operating LLC | Tulsa, OK 74103-4048 | Oil & Gas Operator | Mar 2026 |
| 864 | Roe Oil Company | Cushing, OK 74023-0086 | Oil & Gas Operator | Nov 2025 |
| 865 | Rogers Jerry L | Cushing, OK 74023-0911 | Oil & Gas Operator | Mar 2017 |
| 866 | Ron & Dan'S Oil LTD | Barnsdall, OK 74002-0628 | Oil & Gas Operator | May 2011 |
| 867 | Rongey Ira E | Sapulpa, OK 74066-9317 | Oil & Gas Operator | May 2013 |
| 868 | Rongey Oil | Jenks, OK 74037-3621 | Oil & Gas Operator | Jan 2013 |
| 869 | Rose Operating Company | Tulsa, OK 74101-2391 | Oil & Gas Operator | Dec 2014 |
| 870 | Rose Rock Resources Inc | Wagoner, OK 74467-8362 | Oil & Gas Operator | Feb 2026 |
| 871 | Roseland Oil & Gas Inc | Rockwall, TX 75087 | Oil & Gas Operator | Feb 2003 |
| 872 | Roundup Oil LLC | Springer, OK 73458 | Oil & Gas Operator | Mar 2026 |
| 873 | Rover Operating, LLC | Chicago, IL 60606 | Oil & Gas Operator | Jan 2026 |
| 874 | Rowe Energy | Beggs, OK 74421-0240 | Oil & Gas Operator | Mar 2015 |
| 875 | Rowe Stephen Oil Properties LLC | Hunt, TX 78024 | Oil & Gas Operator | Apr 2020 |
| 876 | Rox Exploration Inc | Norman, OK 73069-6301 | Oil & Gas Operator | Mar 2026 |
| 877 | Roy G Oil Company | Drumright, OK 74030-1236 | Oil & Gas Operator | Oct 1995 |
| 878 | Roy L Ashton Oil & Gas Production Inc | Sapulpa, OK 74066 | Oil Operator | Feb 2026 |
| 879 | Royal Energy Resources LTD | Denver, CO 80221 | Oil & Gas Operator | May 2013 |
| 880 | Royal Oil & Gas Corp. | Indiana, PA 15701 | Oil & Gas Operator | Apr 2014 |
| 881 | Royalty Energy Development LLC | Edmond, OK 73003 | Oil & Gas Operator | Mar 2026 |
| 882 | Rush Creek Operating LLC | McKinney, TX 75070 | Oil & Gas Operator | Jun 2026 |
| 883 | S & C Resources Inc | Cleveland, OK 74020 | Oil Operator | May 2025 |
| 884 | S & G Operating LLC | McLoud, OK 74851 | Oil & Gas Operator | Feb 2026 |
| 885 | S & S Energy | Englewood, CO 80112 | Oil & Gas Operator | Mar 2015 |
| 886 | S & S Oil & Gas Corporation | Okemah, OK 74859-0659 | Oil & Gas Operator | Sep 2014 |
| 887 | S T Industries Inc | Drumright, OK 74030 | Oil & Gas Operator | Mar 2011 |
| 888 | Saiber Michael L & Lora L | Saxonburg, PA 16056 | Oil Operator | Mar 1997 |
| 889 | Sallee Oil Corporation | Collinsville, OK 74021 | Oil & Gas Operator | Feb 2026 |
| 890 | Samson Hydrocarbons Company | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2016 |
| 891 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2026 |
| 892 | Sand Boy Production Company | Bartlesville, OK 74003-9273 | Oil & Gas Operator | Jan 2025 |
| 893 | Sand Point Production Inc | Oklahoma City, OK 73172 | Oil & Gas Operator | Feb 2026 |
| 894 | Santa Fe Minerals, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Sep 2013 |
| 895 | Scavenger Oil Company Inc | Englewood, CO 80111 | Oil & Gas Operator | Mar 2000 |
| 896 | Schad Jeffrey M | Mannford, OK 74044-0995 | Oil Operator | Sep 2021 |
| 897 | Schmid Properties, Inc. | Hico, TX 76457 | Oil & Gas Operator | Jun 2026 |
| 898 | Schonfield Harold Gene | Bristow, OK 74010 | Oil Operator | Mar 2015 |
| 899 | Scissortail Energy LLC | Tulsa, OK 74137-3644 | Oil & Gas Operator | Mar 2026 |
| 900 | Scott Banes Scott Family Partnership | | Oil Operator | Nov 2025 |