| 4701 | Cameron Development Co., Inc. | | Oil & Gas Operator | Mar 1988 |
| 4702 | Cameron Energy Co | Sheffield, PA 16347-2642 | Oil & Gas Operator | Dec 2024 |
| 4703 | Cameron Engineering, Inc | Montgomery, TX 77356 | Oil & Gas Operator | Jun 2003 |
| 4704 | Cameron Exploration, Inc. | Longview, TX 75604 | Oil & Gas Operator | Jul 2025 |
| 4705 | Cameron LNG, LLC | | Oil Operator | Jan 2025 |
| 4706 | Cameron Oil & Gas Company | | Gas Operator | Dec 2016 |
| 4707 | Cameron Oil & Gas Inc | Hobbs, NM 88240 | Oil & Gas Operator | May 2025 |
| 4708 | Cameron Production Co Inc | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2024 |
| 4709 | Cameron Properties | Columbus, OH 43220 | Oil & Gas Operator | Dec 1996 |
| 4710 | Cameron, Paul E., Jr., Inc. | Montgomery, TX 77356 | Oil & Gas Operator | May 2015 |
| 4711 | Camex Operating Company | | Oil & Gas Operator | Dec 2024 |
| 4712 | Camex, Inc. | | Oil & Gas Operator | Jun 1992 |
| 4713 | Caminar Oil & Gas, LLC | Abilene, TX 79602 | Oil & Gas Operator | Aug 2024 |
| 4714 | Camino Natural Resources LLC | Denver, CO 80202 | Oil & Gas Operator | May 2025 |
| 4715 | Camino Real Technologies Inc | Temple, TX 76502 | Oil Operator | Jul 2025 |
| 4716 | Camio Enterprises, LLC | Augusta, KS 67010 | Oil Operator | Mar 2025 |
| 4717 | Camio Oil Compan | | Oil & Gas Operator | Apr 1991 |
| 4718 | Camio Oil Company | | Oil Operator | Dec 2004 |
| 4719 | Camo Oil LLC | Stillwater, OK 74074 | Oil & Gas Operator | May 2025 |
| 4720 | Camoil, Inc. | Columbus, TX 78934 | Oil & Gas Operator | Jul 2025 |
| 4721 | Campana Petroleum Company | Midland, TX 79705 | Oil & Gas Operator | Jul 2025 |
| 4722 | Campanella, George L | Great Falls, MT 59403 | Oil & Gas Operator | May 2025 |
| 4723 | Campbell & Assoc.-Ring | | Oil Operator | Nov 1980 |
| 4724 | Campbell & Associates | | Oil & Gas Operator | Aug 1987 |
| 4725 | Campbell & Hedrick | Midland, TX 79702 | Oil & Gas Operator | Jun 2014 |
| 4726 | Campbell B R | Ardmore, OK 73401 | Oil & Gas Operator | Oct 2002 |
| 4727 | Campbell Co. Et Al | | Oil Operator | Apr 1986 |
| 4728 | Campbell Dale H | McKeesport, PA 15135-3307 | Gas Operator | Dec 2017 |
| 4729 | Campbell Don G | Konawa, OK 74849 | Oil Operator | Feb 1997 |
| 4730 | Campbell Energy Corp. | | Oil & Gas Operator | May 1992 |
| 4731 | Campbell Energy LLC | Carmi, IL 62821 | Oil Operator | Mar 2025 |
| 4732 | Campbell Oil & Gas Inc | Indiana, PA 15701-0278 | Oil & Gas Operator | May 2025 |
| 4733 | Campbell Production Company | Tulsa, OK 74137-4145 | Oil & Gas Operator | Mar 2015 |
| 4734 | Campbell Robert | | Oil & Gas Operator | Aug 1990 |
| 4735 | Campbell Wells Corporation | | Oil Operator | Dec 1995 |
| 4736 | Campbell, G S | Park City, UT 84060 | Oil & Gas Operator | Apr 1991 |
| 4737 | Campbell, George M. | Lubbock, TX 79490 | Oil & Gas Operator | Apr 2003 |
| 4738 | Campbell, Robert E. | Wichita, KS 67206 | Oil & Gas Operator | May 2019 |
| 4739 | Campbell, T. K. | Fort Worth, TX 76118 | Oil & Gas Operator | Mar 2006 |
| 4740 | Campbells Creek Gas Company | Given, WV 25245 | Gas Operator | Dec 2021 |
| 4741 | Campground Corporation | | Oil Operator | Nov 2023 |
| 4742 | Camphire George E. | Danville, OH 43014 | Oil & Gas Operator | Dec 2024 |
| 4743 | Camplin, Raymond | Greenville, KY 42345 | Oil Operator | Dec 2018 |
| 4744 | Campo Verde Oil Inc. | | Oil Operator | May 2025 |
| 4745 | Campsey Minerals | Jacksboro, TX 76458 | Oil & Gas Operator | Jul 2025 |
| 4746 | Camterra Resources, Inc. | Marshall, TX 75671 | Oil & Gas Operator | Jul 2025 |
| 4747 | Camtex Industries Inc. | | Oil Operator | Dec 1996 |
| 4748 | Camwest II LP | McKinney, TX 75070 | Oil & Gas Operator | Jul 2007 |
| 4749 | Camwest Limited Partnership | Denver, CO 80202 | Oil & Gas Operator | Apr 2004 |
| 4750 | Can Do Enterprises | | Oil Operator | Dec 2024 |
| 4751 | Can'T Complain Operating Co. | Georgetown, TX 78633 | Oil & Gas Operator | Jul 2025 |
| 4752 | Can-Tex Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Nov 2003 |
| 4753 | Canaan Energy Corporation | Oklahoma City, OK 73154-8806 | Oil & Gas Operator | Mar 2015 |
| 4754 | Canaan Exploration Inc | Oklahoma City, OK 73123 | Oil & Gas Operator | Jan 1998 |
| 4755 | Canaan Petroleum Inc | San Antonio, TX 78230-4042 | Oil & Gas Operator | Apr 2025 |
| 4756 | Canaan Producing LLC | Burbank, OH 44214 | Oil & Gas Operator | Dec 2024 |
| 4757 | Canaan Resources LLC | Oklahoma City, OK 73118-1126 | Gas Operator | Oct 2023 |
| 4758 | Canaan Resources X LLC | Oklahoma City, OK 73103-4925 | Oil & Gas Operator | Sep 2024 |
| 4759 | Canada Crown Inv Corporation | | Oil & Gas Operator | Apr 1998 |
| 4760 | Canaday Oil Corp | Goddard, KS 67052 | Oil & Gas Operator | Mar 2025 |
| 4761 | Canadian River Trading Co II | Katy, TX 77449 | Oil & Gas Operator | Jul 2025 |
| 4762 | Canadian River Trading Company | Tulsa, OK 74101 | Oil & Gas Operator | Feb 2018 |
| 4763 | Canan Mowrey Operating, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2025 |
| 4764 | Canan Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2025 |
| 4765 | Canard Colvert Operating LLC | Dallas, TX 75219-6243 | Oil & Gas Operator | May 2025 |
| 4766 | Candelero Oil & Gas Company | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 4767 | Candice Venture #1 | | Oil & Gas Operator | May 1992 |
| 4768 | Candleridge Oil, Inc. | Fort Worth, TX 76109 | Oil & Gas Operator | Jun 2003 |
| 4769 | Candy Oil Production | Sand Springs, OK 74063-3410 | Oil Operator | Feb 2017 |
| 4770 | Cane Creek Energy Partners Inc | Morris, OK 74445 | Oil & Gas Operator | Apr 2025 |
| 4771 | Cane Creek Energy, LLC | Charleston, WV 25314 | Oil & Gas Operator | Dec 2021 |
| 4772 | Canest, LLC | Lake Oswego, OR 97035 | Gas Operator | Dec 2006 |
| 4773 | Canfield Oil & Gas Co | Allentown, PA 18103-9667 | Oil & Gas Operator | Dec 2024 |
| 4774 | Cankton Oil Company | | Oil Operator | May 1985 |
| 4775 | Canlan Oil Company | | Oil & Gas Operator | Mar 1992 |
| 4776 | Cannan Calvin B | | Oil Operator | Jul 1991 |
| 4777 | Cannan, Morris | San Antonio, TX 78205 | Oil & Gas Operator | Jul 2025 |
| 4778 | Cannon | Rock Springs, WY 82902 | Oil Operator | Apr 2025 |
| 4779 | Cannon Oil Co. | | Oil Operator | Dec 2009 |
| 4780 | Cannon Operating Company LLC | Garland, TX 75043 | Oil Operator | Jul 2025 |
| 4781 | Cannon Resources Inc | | Oil & Gas Operator | Sep 2003 |
| 4782 | Cannon, Robert D. | | Oil & Gas Operator | Dec 2022 |
| 4783 | Cannuck Resources Inc | Nowata, OK 74048 | Oil & Gas Operator | Aug 2000 |
| 4784 | Cano Petro Of New Mexico, Inc. | Tulsa, OK 74159 | Oil & Gas Operator | Mar 2019 |
| 4785 | Canok International Inc | Okmulgee, OK 74447 | Oil & Gas Operator | May 2025 |
| 4786 | Canonie Tony SR | | Gas Operator | Mar 1996 |
| 4787 | Canstar Oil & Gas, Inc. | | Oil & Gas Operator | Dec 1994 |
| 4788 | Cantera Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Nov 2017 |
| 4789 | Cantium, LLC | | Oil & Gas Operator | Dec 2024 |
| 4790 | Canton Oil & Gas Co | Pleasantville, PA 16341-1729 | Oil & Gas Operator | Dec 2004 |
| 4791 | Cantrell Energy Corporation | Ada, OK 74820-0835 | Oil & Gas Operator | Apr 2025 |
| 4792 | Cantrell Oil Co. | Elbert, TX 76359 | Oil & Gas Operator | Aug 2003 |
| 4793 | Cantrell Robert R | Ada, OK 74820 | Oil & Gas Operator | Apr 2025 |
| 4794 | Cantro Exploration, Inc. | San Antonio, TX 78270 | Oil & Gas Operator | May 2000 |
| 4795 | Cantu Operating, LLC | McAllen, TX 78504 | Oil Operator | Jul 2025 |
| 4796 | Canvas Energy LLC | Oklahoma City, OK 73142-1839 | Oil & Gas Operator | May 2025 |
| 4797 | Canyon Creek Energy Arkoma LLC | Tulsa, OK 74120-3017 | Oil & Gas Operator | Apr 2025 |
| 4798 | Canyon Creek Energy Operating LLC | Tulsa, OK 74120 | Oil & Gas Operator | Apr 2025 |
| 4799 | Canyon Creek Energy Texas, LLC | Tulsa, OK 74136 | Oil & Gas Operator | May 2017 |
| 4800 | Canyon Creek Resources LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jul 2025 |