| 1 | P & C Oil Company | Leona, TX 75850 | Oil & Gas Operator | Jul 2025 |
| 2 | P & H Construction Inc | Wewoka, OK 74884 | Oil & Gas Operator | Jun 2024 |
| 3 | P & H Oil & Gas Inc | Stroud, OK 74079 | Oil & Gas Operator | Jun 2025 |
| 4 | P & M Drilling Company Inc | Depew, OK 74028 | Oil & Gas Operator | Dec 2004 |
| 5 | P K & L Oil Properties | Shawnee, OK 74802-0931 | Oil & Gas Operator | Mar 2001 |
| 6 | P-2 Exploraton Co Inc | Pampa, TX 79065-2920 | Oil & Gas Operator | Jun 1996 |
| 7 | Pace Exploration LLC | Tulsa, OK 74133 | Oil & Gas Operator | May 2025 |
| 8 | Pak Energy LLC | Calgary, AB T3A-5E8 | Oil Operator | Sep 2022 |
| 9 | Palm Operating LLC | Oklahoma City, OK 73106-5646 | Oil & Gas Operator | Nov 2019 |
| 10 | Panexco Operating LLC | Oklahoma City, OK 73103-2203 | Oil & Gas Operator | Oct 2014 |
| 11 | Pantera Energy Company | Amarillo, TX 79101 | Oil & Gas Operator | Sep 2025 |
| 12 | Paragon Industries Inc | Sapulpa, OK 74066-6987 | Oil Operator | May 2025 |
| 13 | Parham Edith | Beggs, OK 74421-2436 | Oil Operator | Oct 2024 |
| 14 | Parker & Parsley Dev Co | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
| 15 | Parks Bill M | Seminole, OK 74818-1648 | Oil & Gas Operator | Apr 2014 |
| 16 | Parks James L | Edmond, OK 73034 | Oil & Gas Operator | Aug 2005 |
| 17 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
| 18 | Patina Oklahoma Corp | Duncan, OK 73533-9523 | Oil & Gas Operator | Nov 2014 |
| 19 | Pawnee Oil And Gas, Inc. | Richardson, TX 75083 | Oil & Gas Operator | May 2023 |
| 20 | Payneco Pipeline Company | Yale, OK 74085 | Oil & Gas Operator | Dec 2000 |
| 21 | Paystone Oil Corporation | Tulsa, OK 74105 | Oil Operator | Mar 2009 |
| 22 | Pearl Oil Company | Nichols Hills, OK 73120-1408 | Oil & Gas Operator | Nov 2023 |
| 23 | Pearl Petroleum Inc | Lawton, OK 73501-5821 | Oil & Gas Operator | Jan 2014 |
| 24 | Pedestal Oil Company Inc | Oklahoma City, OK 73101-1522 | Oil & Gas Operator | May 2019 |
| 25 | Pegasus Energy Corporation | Oklahoma City, OK 73162 | Oil & Gas Operator | Mar 2015 |
| 26 | Pekrul Jeffrey S | Bristow, OK 74010 | Gas Operator | Jun 2025 |
| 27 | Pemco LLC | Skiatook, OK 74070 | Oil Operator | Apr 2025 |
| 28 | Penn Homa Oil & Gas Co | Edmond, OK 73083 | Oil & Gas Operator | Oct 2013 |
| 29 | Permian Roustabout & Oilfield Services LLC | Blanchard, OK 73010 | Oil & Gas Operator | Feb 2024 |
| 30 | Petco Petroleum Corp | Hinsdale, IL 60521 | Oil & Gas Operator | May 2025 |
| 31 | Petro Oilfield Equipment Inc | Drumright, OK 74030-1233 | Oil & Gas Operator | Dec 2010 |
| 32 | Petro-Mac Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2025 |
| 33 | Petro-Management Assoc., Inc. | Edmond, OK 73083-2346 | Oil & Gas Operator | Jun 2007 |
| 34 | Petrojen Production Company Inc | Bakersfield, CA 93311 | Oil Operator | Jul 2025 |
| 35 | Petroleum Capital, L.C. | Dallas, TX 75367 | Oil & Gas Operator | Sep 2025 |
| 36 | Petroleum Explo Prod Inc | Oilton, OK 74052 | Oil & Gas Operator | Jan 2017 |
| 37 | Petroleum Management Prof Inc | Oklahoma City, OK 73120-1848 | Oil & Gas Operator | Apr 2009 |
| 38 | Petroleum Production MGMT., Inc. | Kansas City, MO 64112 | Oil & Gas Operator | Sep 2025 |
| 39 | Petrolia Energy Corporation | Pearland, TX 77581 | Oil Operator | Jan 2024 |
| 40 | Petromark Resources Company | Tulsa, OK 74136 | Oil & Gas Operator | Sep 1993 |
| 41 | Petron Energy Inc | Dallas, TX 75252 | Oil & Gas Operator | Sep 2025 |
| 42 | Phase III Drilling Inc | Wetumka, OK 74883-0333 | Oil & Gas Operator | May 2025 |
| 43 | Pilgrim & Smith Inc | Tulsa, OK 74152 | Oil & Gas Operator | Apr 2015 |
| 44 | Pinnacle Corporation (The) | Broken Arrow, OK 74012 | Oil & Gas Operator | Nov 2014 |
| 45 | Pinnacle Exploration & Production Co | Kiefer, OK 74041 | Oil & Gas Operator | May 2025 |
| 46 | Pinnacle Operating Company LLC | Tulsa, OK 74137 | Oil & Gas Operator | May 2025 |
| 47 | Plains Oil & Gas | Cushing, OK 74023-4819 | Oil & Gas Operator | Jan 2019 |
| 48 | PMD Oil Recovery LLC | Oklahoma City, OK 73129 | Oil & Gas Operator | Jun 2025 |
| 49 | Pole Cat Oil Company | Sapulpa, OK 74067 | Oil Operator | May 2025 |
| 50 | Pollard Jr G W | Okmulgee, OK 74447 | Oil & Gas Operator | Apr 2015 |
| 51 | Ponder Oil Producers LLC | Okemah, OK 74859 | Oil & Gas Operator | Nov 2024 |
| 52 | Pool, Lloyd Operating | Sandia Park, NM 87047 | Gas Operator | Dec 2013 |
| 53 | Pope Ted & Karen Dba MP Operating | Bristow, OK 74010 | Oil Operator | Jun 2025 |
| 54 | Portfolio Oil Corporation | Oklahoma City, OK 73119 | Oil & Gas Operator | May 2013 |
| 55 | Potter Hammill & Potter Inc. | Beggs, OK 74421-0038 | Oil Operator | Aug 2013 |
| 56 | Pound Robert M | Bristow, OK 74010 | Oil & Gas Operator | Sep 2014 |
| 57 | Powell Jess L | Sapulpa, OK 74066 | Oil & Gas Operator | May 2025 |
| 58 | PRDJ Cockrum Enterprises, Inc. | Okemah, OK 74859-5126 | Oil & Gas Operator | Mar 2022 |
| 59 | Price J R Inc | Addington, OK 73520-0099 | Oil & Gas Operator | Apr 2015 |
| 60 | Producers Oil Company | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2007 |
| 61 | Proex Energy Management, L.L.C. | Spring, TX 77386 | Oil & Gas Operator | Sep 2025 |
| 62 | Prosperous Oil & Gas Inc | Okmulgee, OK 74447 | Oil & Gas Operator | May 2025 |
| 63 | Proven Reserves Management, Inc. | Dallas, TX 75370 | Oil & Gas Operator | May 2025 |
| 64 | Pryor, VIctor W., Jr. | Holdenville, OK 74848 | Oil & Gas Operator | Apr 2017 |
| 65 | Pulliam Dennis L | Mannford, OK 74044-9733 | Oil & Gas Operator | Nov 2001 |
| 66 | Pulliam Ken D | Bristow, OK 74010-8648 | Oil & Gas Operator | Feb 2012 |
| 67 | Pulliam Melvin | Mannford, OK 74044 | Oil & Gas Operator | Jul 2019 |
| 68 | Puma Petroleum Corporation | Tulsa, OK 74152-0129 | Oil Operator | Feb 2004 |
| 69 | Pure Oil Co | | Oil & Gas Operator | Dec 1996 |