| 1 | P-R-O Management, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Apr 2024 |
| 2 | P.S.N. Petroleum, Inc. | San Antonio, TX 78233 | Oil & Gas Operator | Apr 2024 |
| 3 | P1 Energy, LLC | Katy, TX 77494 | Oil & Gas Operator | Apr 2024 |
| 4 | Pace Oil And Gas Company | Austin, TX 78715 | Oil & Gas Operator | Apr 2024 |
| 5 | Parker & Parsley Development L.P | Midland, TX 79702 | Oil & Gas Operator | Oct 2007 |
| 6 | Peach Creek Operating Co, LLC | Houston, TX 77007 | Oil & Gas Operator | Apr 2024 |
| 7 | Pedeco, Inc. | Casper, WY 82601 | Oil & Gas Operator | Mar 2008 |
| 8 | Pendragon Oil Co. | Fort Worth, TX 76116 | Oil & Gas Operator | Apr 2024 |
| 9 | Penn VIrginia Oil & Gas, L.P. | Houston, TX 77084 | Oil & Gas Operator | Nov 2022 |
| 10 | Penwell Energy, Inc. | Houston, TX 77057 | Oil & Gas Operator | Apr 2024 |
| 11 | Perimeter Resource Company | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 12 | Petro-Hunt Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 2003 |
| 13 | Petro-Hunt, L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | Apr 2024 |
| 14 | Petrogas Operating Corporation | Garland, TX 75043 | Oil Operator | Feb 2010 |
| 15 | Petrox Resources Inc | Meeker, CO 81641 | Oil & Gas Operator | Feb 2024 |
| 16 | Pharaoh & Associates, Inc. | Houston, TX 77252 | Oil & Gas Operator | Aug 2002 |
| 17 | Phillips 66 Company | Bartlesville, OK 74004 | Oil & Gas Operator | Aug 1997 |
| 18 | Pie Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Apr 2024 |
| 19 | Plantation Operating Co., Inc. | Holliday, TX 76366 | Oil & Gas Operator | Apr 2024 |
| 20 | PPC Operating Company LLC | Houston, TX 77279 | Oil & Gas Operator | Jul 2019 |
| 21 | Precise Development, Inc. | Austin, TX 78709 | Oil & Gas Operator | May 2005 |
| 22 | Preferred Pipeline Corp. | Victoria, TX 77902 | Oil & Gas Operator | Mar 2024 |
| 23 | Premier Minerals, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Apr 2024 |
| 24 | Premium Exploration Company | Early, TX 76803 | Oil & Gas Operator | Apr 2024 |
| 25 | Primera Energy, LLC | Longview, TX 75606 | Oil & Gas Operator | Mar 2016 |
| 26 | Primrose Resources, LLC | Cedar Park, TX 78630 | Oil & Gas Operator | Apr 2024 |
| 27 | Producers Engineering Company | Destin, FL 32541 | Oil & Gas Operator | Sep 1999 |
| 28 | Production Resources, Inc. | Castroville, TX 78009 | Oil & Gas Operator | Apr 2024 |
| 29 | Progas Operating, Inc | Red Rock, TX 78662 | Oil & Gas Operator | Apr 2024 |
| 30 | Progenies Operating LLC | Austin, TX 78746 | Oil & Gas Operator | Apr 2024 |
| 31 | Property Producing Co. | Columbus, TX 78934 | Gas Operator | Apr 2024 |
| 32 | Pyramid Energy Inc | San Antonio, TX 78216 | Oil & Gas Operator | Feb 2012 |