| 4901 | Production Systems Inc | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2007 |
| 4902 | Proex Energy Corp | | Oil & Gas Operator | Dec 1997 |
| 4903 | Proex Energy Management, L.L.C. | Spring, TX 77386 | Oil & Gas Operator | Apr 2025 |
| 4904 | Prompt Operating LLC | Velma, OK 73491 | Oil Operator | Feb 2025 |
| 4905 | Prospect Enterprises Inc | Wetumka, OK 74883-0068 | Oil & Gas Operator | Apr 2004 |
| 4906 | Prospective Investment & Trading | Scottsdale, AZ 85261-4190 | Oil & Gas Operator | Jun 2016 |
| 4907 | Prosper Oil & Gas,Inc. | Dallas, TX 75201 | Oil & Gas Operator | Apr 2025 |
| 4908 | Prosperous Oil & Gas Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Jan 2025 |
| 4909 | Protege Energy II LLC | Tulsa, OK 74135-3252-3252 | Oil & Gas Operator | Dec 2013 |
| 4910 | Protege Energy LLC | Tulsa, OK 74135 | Oil & Gas Operator | Jan 2018 |
| 4911 | Prough A J | Gotebo, OK 73041 | Oil Operator | Apr 2014 |
| 4912 | Proven Reserves Management, Inc. | Dallas, TX 75370 | Oil & Gas Operator | Feb 2025 |
| 4913 | Providence Energy Corporation | Broken Arrow, OK 74013-3783 | Oil & Gas Operator | Feb 1994 |
| 4914 | Providence Exploration & Production Inc | Fort Smith, AR 72913-5171 | Gas Operator | Dec 2012 |
| 4915 | Providence Oil & Gas Corp | Tulsa, OK 74135-5463 | Oil & Gas Operator | May 2005 |
| 4916 | Pruitt Operating Company LLC | Ratliff City, OK 73481-5802 | Oil & Gas Operator | Feb 2025 |
| 4917 | Pryor, Curtis | Lubbock, TX 79424 | Oil & Gas Operator | Dec 1998 |
| 4918 | Pryor, VIctor W., Jr. | Holdenville, OK 74848 | Oil & Gas Operator | Apr 2017 |
| 4919 | Psa Inc | Chandler, OK 74834-4222 | Oil & Gas Operator | Jan 2025 |
| 4920 | Psec Inc | Tulsa, OK 74102-0871 | Oil & Gas Operator | Dec 2016 |
| 4921 | PT II LTD | | Oil & Gas Operator | Oct 2004 |
| 4922 | Pullers Oil Company LLC | Blackwell, OK 74631-9512 | Oil & Gas Operator | Feb 2025 |
| 4923 | Pulliam Dennis L | Mannford, OK 74044-9733 | Oil & Gas Operator | Nov 2001 |
| 4924 | Pulliam IVan Henry | Coweta, OK 74429 | Oil & Gas Operator | Dec 2017 |
| 4925 | Pulliam Ken D | Bristow, OK 74010-8648 | Oil & Gas Operator | Feb 2012 |
| 4926 | Pulliam Melvin | Mannford, OK 74044 | Oil & Gas Operator | Jul 2019 |
| 4927 | Puma Petroleum Corporation | Tulsa, OK 74152-0129 | Oil Operator | Feb 2004 |
| 4928 | Pump It Up LLC | Owasso, OK 74055-0723 | Oil Operator | Jun 2024 |
| 4929 | Pumping Services Inc | Seminole, OK 74868-2421 | Oil & Gas Operator | Feb 2023 |
| 4930 | Pure Energy Systems Inc | Olive Branch, MS 38654-9041 | Gas Operator | Jan 2025 |
| 4931 | Pure Oil Co | | Oil & Gas Operator | Dec 1996 |
| 4932 | Putnam Phyllis L | Bartlesville, OK 74006-7326 | Oil & Gas Operator | May 2021 |
| 4933 | PVR Gas Processing LLC | Irving, TN 75039 | Oil & Gas Operator | Feb 2015 |
| 4934 | PXP Gulf Coast Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 4935 | Pybas Robert | Wanette, OK 74878 | Oil Operator | Apr 2014 |
| 4936 | Pyramid Energy Inc | San Antonio, TX 78216 | Oil & Gas Operator | Feb 2012 |
| 4937 | Pyramid Oil Of America, Inc. | Nichols Hill, OK 73116 | Oil & Gas Operator | Jan 2025 |
| 4938 | Pyro Energy Corp | Kingwood, TX 77339-2102 | Oil & Gas Operator | Mar 1998 |
| 4939 | Q T Oil LTD Co | Shawnee, OK 74801 | Oil Operator | Jan 2025 |
| 4940 | Qep Energy Company | Midland, TX 79701 | Oil & Gas Operator | Jan 2025 |
| 4941 | Quad J Oil & Gas LLC | Crescent, OK 73028 | Oil & Gas Operator | Feb 2025 |
| 4942 | Quad Operating Company | Bulverde, TX 78163 | Oil & Gas Operator | Jan 2025 |
| 4943 | Quail Creek Oil Corporation | Houston, TX 77024 | Oil & Gas Operator | Apr 2025 |
| 4944 | Quail Creek Petro MGMT Corp | Oklahoma City, OK 73134 | Oil & Gas Operator | Aug 2013 |
| 4945 | Quail Oil & Gas LC | Garden City, KS 67846 | Oil & Gas Operator | Jan 2025 |
| 4946 | Quality Production Co Of Stigler Inc | Stigler, OK 74462-0635 | Gas Operator | Feb 2013 |
| 4947 | Quanah Company | Tulsa, OK 74159-0469 | Oil & Gas Operator | May 2020 |
| 4948 | Quantum Oil & Gas Corporation | Oklahoma City, OK 73172 | Oil & Gas Operator | Apr 2025 |
| 4949 | Quantum Resources Management LLC | Houston, TX 77010 | Oil & Gas Operator | Jan 2025 |
| 4950 | Quarles Drilling Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2008 |
| 4951 | Quatro Oil And Gas, Inc. | Joshua, TX 76058 | Oil & Gas Operator | Apr 2025 |
| 4952 | Quench Oil & Gas Inc | Plano, TX 75075-2902 | Oil & Gas Operator | Apr 2009 |
| 4953 | Quest 4 Oil LLC | Duncan, OK 73533-1289 | Oil & Gas Operator | May 2020 |
| 4954 | Quest Cherokee LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2024 |
| 4955 | Quest Property Inc | Yukon, OK 73099 | Oil & Gas Operator | Jan 2025 |
| 4956 | Questa Energy Corporation | Amarillo, TX 79159 | Oil & Gas Operator | Apr 2025 |
| 4957 | Questa Oil & Gas Co. | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2015 |
| 4958 | Questar Energy Trading | Salt Lake City, UT 84145-0601 | Oil & Gas Operator | Mar 2020 |
| 4959 | Questar Explor & Prod Co | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2017 |
| 4960 | Quick Draw Tank Trucks Inc | Lamont, OK 74643-0158 | Oil Operator | Oct 1997 |
| 4961 | Quinn Energy Corp | MT Vernon, IN 47620 | Oil & Gas Operator | Oct 1999 |
| 4962 | Quinque Operating Company | Liberal, KS 67905 | Oil & Gas Operator | Dec 2024 |
| 4963 | Quintana Pet Okla Inc | Houston, TX 77002 | Oil & Gas Operator | Jun 1998 |
| 4964 | Quinton Rental & Repair Serv Inc | Quinton, OK 74561-0432 | Oil & Gas Operator | Mar 2015 |
| 4965 | Quorum Lease Bank | Dallas, TX 75240 | Oil Operator | Jun 1996 |
| 4966 | R & A Moore, Inc. | Cleburne, TX 76033 | Oil & Gas Operator | Apr 2025 |
| 4967 | R & B Oil & Gas, Inc. | Attica, KS 67009 | Oil & Gas Operator | Dec 2024 |
| 4968 | R & B Operating LLC | Boynton, OK 74422 | Oil & Gas Operator | Feb 2024 |
| 4969 | R & B Trucking | Crescent, OK 73028-0775 | Oil & Gas Operator | Nov 2021 |
| 4970 | R & C Oil And Gas Inc | Ada, OK 74820-3150 | Oil Operator | Jul 2016 |
| 4971 | R & D Oil & Gas | Exeter, CA 93221-9697 | Oil & Gas Operator | Aug 2019 |
| 4972 | R & D Reclaiming LLC | Ringwood, OK 73768 | Oil Operator | Aug 2022 |
| 4973 | R & H LLC | Ardmore, OK 73401-6329 | Oil & Gas Operator | Mar 2015 |
| 4974 | R & H Production LLC | Cement, OK 73017 | Oil & Gas Operator | Oct 2021 |
| 4975 | R & L Oil Company | Copan, OK 74022 | Oil Operator | May 2020 |
| 4976 | R & L Properties Inc | Richmond, MO 64085-0228 | Oil & Gas Operator | Apr 2001 |
| 4977 | R & N Associates | Grapevine, TX 76051 | Oil & Gas Operator | Jan 2025 |
| 4978 | R & N Oil Company | Fairfax, OK 74637 | Oil & Gas Operator | May 2013 |
| 4979 | R & R Oil Company | Pampa, TX 79065 | Oil & Gas Operator | Jul 2002 |
| 4980 | R & R Operating | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 2004 |
| 4981 | R & S Exploration & Production | Lawton, OK 73501 | Oil Operator | Jan 1996 |
| 4982 | R & S Investments | Tulsa, OK 74146-4743 | Oil Operator | Aug 2013 |
| 4983 | R & S Oil Company | Tonkawa, OK 74653 | Oil & Gas Operator | Nov 2013 |
| 4984 | R & S Operating | Perry, OK 73077 | Oil & Gas Operator | Jan 2013 |
| 4985 | R & S Resource LLC | Kellyville, OK 74039 | Oil Operator | Jan 2025 |
| 4986 | R A Miller Energy Inc | Edmond, OK 73013 | Oil & Gas Operator | Mar 2020 |
| 4987 | R B Energy, Inc | Manchester, KY 40962 | Oil & Gas Operator | Jan 2015 |
| 4988 | R Baker Oil LLC | Okemah, OK 74859 | Oil & Gas Operator | Jan 2025 |
| 4989 | R C Holdings LLC | Garber, OK 73738-5423 | Oil & Gas Operator | Apr 2017 |
| 4990 | R C Oil Company Inc | Nowata, OK 74048-3402 | Oil Operator | Nov 2021 |
| 4991 | R C Taylor Operating Company LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Mar 2025 |
| 4992 | R D T Properties | Tulsa, OK 74105-7122 | Oil & Gas Operator | Sep 2017 |
| 4993 | R E Blaik Inc | Edmond, OK 73013-6675 | Oil & Gas Operator | Feb 2025 |
| 4994 | R E C Tulsa Corporation | Oklahoma City, OK 73107 | Oil & Gas Operator | Apr 2014 |
| 4995 | R H S Inc | Ada, OK 74821-1252 | Oil & Gas Operator | Apr 2020 |
| 4996 | R I G Producers Inc | Dewey, OK 74029 | Oil & Gas Operator | Jul 1999 |
| 4997 | R J Exploration LLC | Konawa, OK 74849 | Oil & Gas Operator | Feb 2025 |
| 4998 | R K R Exploration | Seminole, OK 74868-9754 | Oil & Gas Operator | Mar 2015 |
| 4999 | R L Clampitt & Associates LLC | Bartlesville, OK 74006 | Oil & Gas Operator | Feb 2025 |
| 5000 | R L Turner Oil Company LLC | Duncan, OK 73533 | Oil Operator | Feb 2025 |