| 4801 | Cameron Properties | Columbus, OH 43220 | Oil & Gas Operator | Dec 1996 |
| 4802 | Cameron, Paul E., Jr., Inc. | Montgomery, TX 77356 | Oil & Gas Operator | May 2015 |
| 4803 | Camex Operating Company | | Oil & Gas Operator | Dec 2024 |
| 4804 | Camex, Inc. | | Oil & Gas Operator | Jun 1992 |
| 4805 | Camexco, Inc. | Houston, TX 77058 | Oil & Gas Operator | Apr 2025 |
| 4806 | Caminar Oil & Gas, LLC | Abilene, TX 79602 | Oil & Gas Operator | Aug 2024 |
| 4807 | Camino Natural Resources LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2025 |
| 4808 | Camino Real Technologies Inc | Temple, TX 76502 | Oil Operator | Apr 2025 |
| 4809 | Camio Enterprises, LLC | Augusta, KS 67010 | Oil Operator | Dec 2024 |
| 4810 | Camio Oil Compan | | Oil & Gas Operator | Apr 1991 |
| 4811 | Camio Oil Company | | Oil Operator | Dec 2004 |
| 4812 | Camo Oil LLC | Stillwater, OK 74074 | Oil & Gas Operator | Feb 2025 |
| 4813 | Camoil, Inc. | Columbus, TX 78934 | Oil & Gas Operator | Apr 2025 |
| 4814 | Camp Dennis | Ratliff City, OK 73081 | Oil & Gas Operator | Nov 2018 |
| 4815 | Campana Petroleum Company | Midland, TX 79705 | Oil & Gas Operator | Apr 2025 |
| 4816 | Campanella, George L | Great Falls, MT 59403 | Oil & Gas Operator | Feb 2025 |
| 4817 | Campbell & Assoc.-Ring | | Oil Operator | Nov 1980 |
| 4818 | Campbell & Associates | | Oil & Gas Operator | Aug 1987 |
| 4819 | Campbell & Hedrick | Midland, TX 79702 | Oil & Gas Operator | Jun 2014 |
| 4820 | Campbell B R | Ardmore, OK 73401 | Oil & Gas Operator | Oct 2002 |
| 4821 | Campbell Co. Et Al | | Oil Operator | Apr 1986 |
| 4822 | Campbell Dale H | McKeesport, PA 15135-3307 | Gas Operator | Dec 2017 |
| 4823 | Campbell Don G | Konawa, OK 74849 | Oil Operator | Feb 1997 |
| 4824 | Campbell Energy Corp. | | Oil & Gas Operator | May 1992 |
| 4825 | Campbell Energy LLC | Carmi, IL 62821 | Oil Operator | Dec 2024 |
| 4826 | Campbell Oil & Gas Inc | Indiana, PA 15701-0278 | Oil & Gas Operator | Feb 2025 |
| 4827 | Campbell Production Company | Tulsa, OK 74137-4145 | Oil & Gas Operator | Mar 2015 |
| 4828 | Campbell Robert | | Oil & Gas Operator | Aug 1990 |
| 4829 | Campbell Wells Corporation | | Oil Operator | Dec 1995 |
| 4830 | Campbell, G S | Park City, UT 84060 | Oil & Gas Operator | Apr 1991 |
| 4831 | Campbell, George M. | Lubbock, TX 79490 | Oil & Gas Operator | Apr 2003 |
| 4832 | Campbell, Robert E. | Wichita, KS 67206 | Oil & Gas Operator | May 2019 |
| 4833 | Campbell, T. K. | Fort Worth, TX 76118 | Oil & Gas Operator | Mar 2006 |
| 4834 | Campbells Creek Gas Company | Given, WV 25245 | Gas Operator | Dec 2021 |
| 4835 | Campground Corporation | | Oil Operator | Nov 2023 |
| 4836 | Camphire George E. | Danville, OH 43014 | Oil & Gas Operator | Dec 2024 |
| 4837 | Camplin, Raymond | Greenville, KY 42345 | Oil Operator | Dec 2018 |
| 4838 | Campo Verde Oil Inc. | | Oil Operator | Dec 2024 |
| 4839 | Campsey Minerals | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2025 |
| 4840 | Camterra Resources, Inc. | Marshall, TX 75671 | Oil & Gas Operator | Apr 2025 |
| 4841 | Camtex Industries Inc. | | Oil Operator | Dec 1996 |
| 4842 | Camwest II LP | McKinney, TX 75070 | Oil & Gas Operator | Jul 2007 |
| 4843 | Camwest Limited Partnership | Denver, CO 80202 | Oil & Gas Operator | Apr 2004 |
| 4844 | Can Do Enterprises | | Oil Operator | Dec 2024 |
| 4845 | Can'T Complain Operating Co. | Georgetown, TX 78633 | Oil & Gas Operator | Apr 2025 |
| 4846 | Can-Tex Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Nov 2003 |
| 4847 | Canaan Energy Corporation | Oklahoma City, OK 73154-8806 | Oil & Gas Operator | Mar 2015 |
| 4848 | Canaan Exploration Inc | Oklahoma City, OK 73123 | Oil & Gas Operator | Jan 1998 |
| 4849 | Canaan Petroleum Inc | San Antonio, TX 78230-4042 | Oil & Gas Operator | Jan 2025 |
| 4850 | Canaan Producing LLC | Burbank, OH 44214 | Oil & Gas Operator | Dec 2024 |
| 4851 | Canaan Resources LLC | Oklahoma City, OK 73118-1126 | Gas Operator | Oct 2023 |
| 4852 | Canaan Resources X LLC | Oklahoma City, OK 73103-4925 | Oil & Gas Operator | Sep 2024 |
| 4853 | Canada Crown Inv Corporation | | Oil & Gas Operator | Apr 1998 |
| 4854 | Canaday Oil Corp | Goddard, KS 67052 | Oil & Gas Operator | Dec 2024 |
| 4855 | Canadian Exploration Corp | | Oil & Gas Operator | Oct 1994 |
| 4856 | Canadian River Trading Co II | Katy, TX 77449 | Oil & Gas Operator | Apr 2025 |
| 4857 | Canadian River Trading Company | Tulsa, OK 74101 | Oil & Gas Operator | Feb 2018 |
| 4858 | Canan Mowrey Operating, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2025 |
| 4859 | Canan Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2025 |
| 4860 | Canard Colvert Operating LLC | Dallas, TX 75219-6243 | Oil & Gas Operator | Feb 2025 |
| 4861 | Candelero Oil & Gas Company | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 4862 | Candice Venture #1 | | Oil & Gas Operator | May 1992 |
| 4863 | Candleridge Oil, Inc. | Fort Worth, TX 76109 | Oil & Gas Operator | Jun 2003 |
| 4864 | Candy Oil Production | Sand Springs, OK 74063-3410 | Oil Operator | Feb 2017 |
| 4865 | Cane Creek Energy Partners Inc | Morris, OK 74445 | Oil & Gas Operator | Jan 2025 |
| 4866 | Cane Creek Energy, LLC | Charleston, WV 25314 | Oil & Gas Operator | Dec 2021 |
| 4867 | Canest, LLC | Lake Oswego, OR 97035 | Gas Operator | Dec 2006 |
| 4868 | Canfield Oil & Gas Co | Allentown, PA 18103-9667-9667 | Oil & Gas Operator | Dec 2024 |
| 4869 | Cankton Oil Company | | Oil Operator | May 1985 |
| 4870 | Canlan Oil Company | | Oil & Gas Operator | Mar 1992 |
| 4871 | Cannan Calvin B | | Oil Operator | Jul 1991 |
| 4872 | Cannan, Morris | San Antonio, TX 78205 | Oil & Gas Operator | Apr 2025 |
| 4873 | Cannon | Rock Springs, WY 82902 | Oil Operator | Feb 2025 |
| 4874 | Cannon Oil Co. | | Oil Operator | Dec 2009 |
| 4875 | Cannon Operating Company LLC | Garland, TX 75043 | Oil Operator | Apr 2025 |
| 4876 | Cannon Resources Inc | | Oil & Gas Operator | Sep 2003 |
| 4877 | Cannon, Robert D. | | Oil & Gas Operator | Dec 2022 |
| 4878 | Cannuck Resources Inc | Nowata, OK 74048 | Oil & Gas Operator | Aug 2000 |
| 4879 | Cano Petro Of New Mexico, Inc. | Tulsa, OK 74159 | Oil & Gas Operator | Mar 2019 |
| 4880 | Canok International Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Jan 2025 |
| 4881 | Canonie Tony SR | | Gas Operator | Mar 1996 |
| 4882 | Canstar Oil & Gas, Inc. | | Oil & Gas Operator | Dec 1994 |
| 4883 | Cantera Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Nov 2017 |
| 4884 | Cantium, LLC | | Oil & Gas Operator | Dec 2024 |
| 4885 | Canton Oil & Gas Co | Pleasantville, PA 16341-1729 | Oil & Gas Operator | Dec 2004 |
| 4886 | Cantrell Energy Corporation | Ada, OK 74820-0835 | Oil & Gas Operator | Feb 2025 |
| 4887 | Cantrell Oil Co. | Elbert, TX 76359 | Oil & Gas Operator | Aug 2003 |
| 4888 | Cantrell Robert R | Ada, OK 74820 | Oil & Gas Operator | Jan 2025 |
| 4889 | Cantro Exploration, Inc. | San Antonio, TX 78270 | Oil & Gas Operator | May 2000 |
| 4890 | Cantu Operating, LLC | McAllen, TX 78504 | Oil Operator | Apr 2025 |
| 4891 | Canvas Energy LLC | Oklahoma City, OK 73142-1839 | Oil & Gas Operator | Feb 2025 |
| 4892 | Canyon Co., The | Midland, TX 79708 | Gas Operator | Aug 1994 |
| 4893 | Canyon Creek Energy Arkoma LLC | Tulsa, OK 74120-3017 | Oil & Gas Operator | Jan 2025 |
| 4894 | Canyon Creek Energy Operating LLC | Tulsa, OK 74120 | Oil & Gas Operator | Jan 2025 |
| 4895 | Canyon Creek Energy Texas, LLC | Tulsa, OK 74136 | Oil & Gas Operator | May 2017 |
| 4896 | Canyon Creek Resources LLC | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2025 |
| 4897 | Canyon E & P Company | Dallas, TX 75206 | Oil Operator | Oct 2013 |
| 4898 | Canyon Exploration Co. | Amarillo, TX 79105 | Oil & Gas Operator | Dec 2024 |
| 4899 | Canyon Oil & Gas Exploration LLC | San Antonio, TX 78258 | Oil & Gas Operator | May 2002 |
| 4900 | Canyon Operating LLC | Dallas, TX 75225 | Oil & Gas Operator | Apr 2025 |