| 1 | C & P Energy Inc | Hampton, AR 71744 | Oil Operator | Dec 2014 |
| 2 | C & R Production Inc | | Oil Operator | Mar 2010 |
| 3 | C & R Production, LLC | Stephens, AR 71764 | Oil Operator | Apr 2024 |
| 4 | C.J. Oil Company | Iowa Park, TX 76367 | Oil Operator | Jul 2024 |
| 5 | C12: Arkansas Oil, LLC | Lowerville, AR 71545 | Oil & Gas Operator | Jul 2024 |
| 6 | C6 Operating, L.L.C. | Keatchie, LA 71046 | Oil & Gas Operator | Nov 2024 |
| 7 | Cabot Oil & Gas Corporation | Houston, TX 77024 | Oil & Gas Operator | Aug 2024 |
| 8 | Caddo Management, Inc | Shreveport, LA 71101 | Oil & Gas Operator | Jun 2024 |
| 9 | Callon Petroleum Company | Natchez, MS 39120 | Oil & Gas Operator | Oct 2002 |
| 10 | Camterra Resources, Inc. | Marshall, TX 75671 | Oil & Gas Operator | Nov 2024 |
| 11 | Caruthers Producing Co., Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2019 |
| 12 | CDX Gas, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Oct 2009 |
| 13 | Challenge Operating Inc | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2024 |
| 14 | Chaparral Energy, Inc. | Oklahoma City, OK 73114 | Oil & Gas Operator | Dec 2009 |
| 15 | Chaparral Energy, L.L.C. | Oklahoma City, OK 73142 | Oil & Gas Operator | Nov 2024 |
| 16 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Jul 2024 |
| 17 | Chesapeake Operating, LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Nov 2024 |
| 18 | Cholla Petroleum, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Nov 2024 |
| 19 | Cimarex Energy Co. Of Colorado | Midland, TX 79706 | Oil & Gas Operator | Nov 2024 |
| 20 | Circle Ridge Production, Inc. | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 21 | Clark Energy, LLC | Smackover, AR 71762 | Oil & Gas Operator | Jul 2024 |
| 22 | Cobra Oil & Gas Corporation | Wichita Falls, TX 76307 | Oil & Gas Operator | Nov 2024 |
| 23 | Columbia Oil Company, Inc | Guy, AR 72061 | Oil & Gas Operator | Mar 2024 |
| 24 | Cone, Bert Lee | Metairie, LA 70003 | Oil Operator | Jun 2024 |
| 25 | Continental Shale, LLC | Mountain Home, AR 72653 | Gas Operator | Jul 2024 |
| 26 | Corley Trust, LLC | Smackover, AR 71762 | Oil Operator | Feb 2020 |
| 27 | Corley, Henry Oil Properties LLC | El Dorado, AR 71730 | Oil Operator | Jul 2024 |
| 28 | Cornerstone Energy, LLC | Magnolia, AR 71753 | Oil & Gas Operator | May 2024 |
| 29 | Cornie Creek Corporation | Magnolia, AR 71753 | Oil & Gas Operator | Jul 2024 |
| 30 | Cox & Perkins Exploration, Inc. | Houston, TX 77057 | Oil & Gas Operator | Nov 2024 |
| 31 | Crabtree Operating Co | Magnolia, AR 71753 | Oil Operator | Jan 2024 |
| 32 | Cravens Oil Co | | Gas Operator | Dec 2004 |
| 33 | Crawford Production Company Inc | Junction City, AR 71749 | Oil & Gas Operator | Jul 2024 |
| 34 | Cross Timbers Operating Inc | | Gas Operator | Jul 2001 |
| 35 | Crow Creek Operating Co II LLC | Houston, TX 77252 | Oil & Gas Operator | Nov 2011 |
| 36 | Crude Oil, LLC | El Dorado, AR 71730 | Oil & Gas Operator | Oct 2008 |
| 37 | Crystal Oil & Land Company | | Oil & Gas Operator | Apr 2002 |
| 38 | Cummins & Walker Oil Co., Inc. | Austin, TX 78746 | Oil & Gas Operator | Jan 2021 |
| 39 | Cypress Creek Production Company | Magnolia, AR 71753 | Oil Operator | Jun 2024 |
| 40 | Cypress Operating, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Nov 2024 |