| 6701 | Cotton, W. L. | Hebbronville, TX 78361 | Oil & Gas Operator | Mar 1996 |
| 6702 | Cotton, W.L. Gems & Minerals LTD | Hebbronville, TX 78361 | Oil & Gas Operator | May 2000 |
| 6703 | Cottonmouth SWD LLC | Tulsa, OK 74103-3522 | Oil Operator | Oct 2025 |
| 6704 | Cottonwood Oil C | | Oil & Gas Operator | Oct 1988 |
| 6705 | Cottonwood Oil Inc | Worland, WY 82401 | Oil & Gas Operator | Jun 1988 |
| 6706 | Cottonwood Opr Corp | Dubois, PA 15801-0403 | Gas Operator | Dec 1989 |
| 6707 | Cottonwood Petroleum Co. | Abilene, TX 79603 | Oil & Gas Operator | Jun 2009 |
| 6708 | Cottonwood Prod Co Inc | Buffalo, NY 14202-2212 | Gas Operator | Dec 2002 |
| 6709 | Cottonwood Resources, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Aug 2003 |
| 6710 | Couch Donald W | Marlow, OK 73055 | Oil & Gas Operator | Oct 2025 |
| 6711 | Couch Fred J | Broken Arrow, OK 74012 | Oil Operator | Mar 2010 |
| 6712 | Couch Oil & Gas, Inc. | Dallas, TX 75229 | Oil & Gas Operator | Dec 2025 |
| 6713 | Couch, Gilbert | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2025 |
| 6714 | Couch, Harry L. | Odessa, TX 79762 | Oil & Gas Operator | Nov 1994 |
| 6715 | Cougar Energies, Inc. | Oberlin, KS 67749 | Oil Operator | Jun 1996 |
| 6716 | Cougar Energy Inc | Oil City, PA 16301-4046 | Oil & Gas Operator | Dec 2013 |
| 6717 | Cougar Energy Investment LLC | Spring, TX 77387-7277 | Oil & Gas Operator | Sep 2014 |
| 6718 | Cougar Exploration, Inc. | | Oil & Gas Operator | Jun 1988 |
| 6719 | Cougar Oil | | Oil Operator | Jul 2025 |
| 6720 | Cougar Oil & Gas Co., Inc. | Houston, TX 77269 | Oil & Gas Operator | Mar 2008 |
| 6721 | Cougar Oil, Inc. | Henderson, TX 75653 | Oil & Gas Operator | Jun 2009 |
| 6722 | Coughlin, Daniel L | | Oil Operator | Aug 2000 |
| 6723 | Coulthurst MGT & Inv Inc | Reno, NV 89504 | Oil Operator | Sep 2020 |
| 6724 | Council Oak Resources LLC | Tulsa, OK 74103-3500 | Oil & Gas Operator | Oct 2025 |
| 6725 | Country Boy Oil Co Inc | | Oil Operator | Nov 2017 |
| 6726 | Country Side Sand & Gravel, Inc | Collins, NY 14034 | Gas Operator | Dec 2024 |
| 6727 | Countrymark Energy Resources L L C | MT Vernon, IN 47620 | Oil & Gas Operator | Dec 2023 |
| 6728 | County Line Resources LLC | Lancaster, TX 75146 | Oil Operator | Dec 2025 |
| 6729 | County Line Stone Co., Inc. | Akron, NY 14001 | Gas Operator | Dec 2024 |
| 6730 | County Line Stripper Wells LLC | Chelsea, OK 74016 | Oil & Gas Operator | Aug 2025 |
| 6731 | County Management, Inc. | Houston, TX 77055 | Oil & Gas Operator | Apr 1993 |
| 6732 | Countyline Production Co LLC | Duncan, OK 73533 | Oil Operator | Sep 2025 |
| 6733 | Couroil, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Sep 2000 |
| 6734 | Courson Oil & Gas, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Dec 2025 |
| 6735 | Courson, Harold D. | Perryton, TX 79070 | Oil & Gas Operator | Aug 1998 |
| 6736 | Courtland City Lights Assoc. | | Oil Operator | Dec 2005 |
| 6737 | Courtney Oil Co. | | Oil Operator | Dec 1998 |
| 6738 | Coushatta Oil & Gas Inc. | | Oil & Gas Operator | Jan 2007 |
| 6739 | Cousins Exploration Co | Wichita Falls, TX 76307 | Oil Operator | Jun 1991 |
| 6740 | Cove Petroleum Corporation | Shreveport, LA 71101 | Oil & Gas Operator | Jun 2020 |
| 6741 | Covenant Oil & Gas, L.P. | Houston, TX 77057 | Oil & Gas Operator | Dec 2006 |
| 6742 | Covenant Oil Company | Houma, LA 70360 | Oil & Gas Operator | Dec 2015 |
| 6743 | Covenant Oil Corp | Broken Arrow, OK 74014 | Oil & Gas Operator | May 2013 |
| 6744 | Covenant Operating, LLC | Wichita Falls, TX 76308 | Oil Operator | Dec 2025 |
| 6745 | Covenant Production Co., L.C. | Midland, TX 79702 | Oil & Gas Operator | Nov 2002 |
| 6746 | Covered H Energy, LLC | Lubbock, TX 79423 | Oil Operator | Dec 2025 |
| 6747 | Covert, Christopher P. | Auburn, NY 13021 | Gas Operator | Dec 2024 |
| 6748 | Covey Energy, Inc. | | Oil & Gas Operator | Jun 1998 |
| 6749 | Covey Park Gas LLC | | Oil & Gas Operator | Aug 2019 |
| 6750 | Covey Park Operating LLC | Dallas, TX 75225 | Oil & Gas Operator | Aug 2019 |
| 6751 | Covey Park Resources LLC | Frisco, TX 75034 | Oil & Gas Operator | Aug 2019 |
| 6752 | Covington Oil Company Inc | Nichols Hills, OK 73116 | Oil & Gas Operator | Sep 2025 |
| 6753 | Cow Creek Resources Inc | Ponca City, OK 74601-7815 | Oil & Gas Operator | Oct 2025 |
| 6754 | Cow Run LTD Liability Company | Davidson, NC 28036 | Oil & Gas Operator | Nov 2018 |
| 6755 | Cowan Oil Company | | Oil Operator | Sep 1990 |
| 6756 | Cowboy Clean Fuels LLC | Laramie, WY 82072 | Gas Operator | Sep 2025 |
| 6757 | Cowboy Oil & Gas | Bristow, OK 74010-0057 | Oil & Gas Operator | Jul 2018 |
| 6758 | Cowboy Operating LLC | Oklahoma City, OK 73120 | Oil Operator | Sep 2025 |
| 6759 | Cowboys Resources Corp. | New Braunfels, TX 78132 | Oil Operator | Jan 2008 |
| 6760 | Cowden SR Lester L | Oklahoma City, OK 73118-4011 | Oil & Gas Operator | Sep 1999 |
| 6761 | Cowen Michael T | | Oil & Gas Operator | Dec 2009 |
| 6762 | Cowles James C | Muskogee, OK 74401-5262 | Oil Operator | Sep 2025 |
| 6763 | Cowley Energy Associates, LLC | Plano, TX 75093 | Gas Operator | Dec 2009 |
| 6764 | Cowrie Energy LLC | Austin, TX 78703 | Oil & Gas Operator | Dec 2025 |
| 6765 | Cowry Enterprises, LTD. | Littleton, CO 80161-3310 | Oil & Gas Operator | Mar 2022 |
| 6766 | Cox & Perkins Exploration, Inc. | Houston, TX 77057 | Oil & Gas Operator | Dec 2025 |
| 6767 | Cox Edwin L & Be | | Oil & Gas Operator | Nov 1989 |
| 6768 | Cox Edwin L & Berry R | | Oil & Gas Operator | Oct 1987 |
| 6769 | Cox Edwin L & R Berry | Dallas, TX 75202 | Oil & Gas Operator | Apr 2015 |
| 6770 | Cox Elmer N | Irving, TX 75181 | Oil Operator | Aug 2013 |
| 6771 | Cox Engineering, LLC | Abilene, TX 79605 | Oil Operator | Mar 2006 |
| 6772 | Cox Exploration, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Nov 1999 |
| 6773 | Cox Gas Corporation | Dallas, TX 75201-7306 | Oil & Gas Operator | Apr 2015 |
| 6774 | Cox Kendall Jay | Recluse, WY 28775 | Oil & Gas Operator | Aug 2016 |
| 6775 | Cox Linda | Bristow, OK 74010-0808 | Oil & Gas Operator | Jan 2018 |
| 6776 | Cox Oil & Gas Inc | Dallas, TX 75201 | Oil & Gas Operator | Mar 2014 |
| 6777 | Cox Operating Co. | Wichita Falls, TX 76310 | Oil & Gas Operator | Jun 2000 |
| 6778 | Cox Operating, L.L.C. | | Oil & Gas Operator | Jan 2024 |
| 6779 | Cox P D Inc | Bristow, OK 74010 | Oil & Gas Operator | May 1993 |
| 6780 | Cox Resources Corporation | Dallas, TX 75244 | Oil & Gas Operator | Mar 2015 |
| 6781 | Cox Robert L | Blackwell, OK 74631 | Oil & Gas Operator | Oct 2025 |
| 6782 | Cox, Gary L | | Oil Operator | Mar 2022 |
| 6783 | Cox, H. L. | Wichita Falls, TX 76307 | Oil & Gas Operator | Jan 2011 |
| 6784 | Cox, John L. | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
| 6785 | Cox, Lee Investments Inc. | Mineral Wells, TX 76067 | Oil & Gas Operator | Dec 2025 |
| 6786 | Cox, Martin Regan | Irving, TX 75014 | Oil & Gas Operator | Dec 2025 |
| 6787 | Cox, Robert G. & Associates,Inc. | Dallas, TX 75225 | Oil & Gas Operator | Feb 1994 |
| 6788 | Cox, Wayne D. | Eureka, KS 67045 | Oil Operator | Sep 1991 |
| 6789 | Coy W. Hale | | Oil Operator | Nov 2024 |
| 6790 | Coyote Oil Company | Lufkin, TX 75915 | Oil & Gas Operator | Sep 1996 |
| 6791 | Coyote Oil Company. LTD. | | Oil & Gas Operator | Dec 1997 |
| 6792 | Coyote Oil LLC | | Oil Operator | Jan 2018 |
| 6793 | Coyote Oil, Inc. | Snyder, TX 79550 | Oil & Gas Operator | Dec 2025 |
| 6794 | Coyote Operating, LLC | Graham, TX 76450 | Oil Operator | Dec 2025 |
| 6795 | Coyote Services, Inc. | Coleman, TX 76834 | Oil & Gas Operator | Mar 2002 |
| 6796 | Cozart Producers | | Oil Operator | Dec 2024 |
| 6797 | CP Exploration III Operating,LLC | Lafayette, LA 70505 | Oil & Gas Operator | Sep 2023 |
| 6798 | CP Exploration TX Operating LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2017 |
| 6799 | CPBG, LLC | | Oil Operator | Oct 2019 |
| 6800 | Cpi 5, L.L.C | | Oil Operator | Dec 2023 |