| 9901 | Evenson Oil Oper | | Oil Operator | Nov 1991 |
| 9902 | Everest Minerals Corp. | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Apr 2001 |
| 9903 | Everest Network LLC | Eastland, TX 76448 | Oil & Gas Operator | Feb 2026 |
| 9904 | Everest Oil & Gas LLC | Santa Barbara, CA 93101 | Oil Operator | Oct 2025 |
| 9905 | Everest Resource Company | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Feb 2026 |
| 9906 | Everett Oil | San Antonio, TX 78258 | Oil & Gas Operator | Apr 2015 |
| 9907 | Everett Oil, Inc. | San Antonio, TX 78258 | Oil Operator | Feb 2026 |
| 9908 | Everett, Jack T | | Oil Operator | Apr 2007 |
| 9909 | Everett, Joe Mack | Throckmorton, TX 76483 | Oil & Gas Operator | Feb 2026 |
| 9910 | Everflow Eastern Inc | Canfield, OH 44406-0629 | Oil & Gas Operator | Dec 2024 |
| 9911 | Everflow Eastern Partners LP | Canfield, OH 44406 | Oil & Gas Operator | Dec 2024 |
| 9912 | Everglow Energy, LLC | Oklahoma City, OK 73162 | Oil & Gas Operator | Sep 2025 |
| 9913 | Evergreen Energy, Inc | Houston, TX 77098 | Oil & Gas Operator | Feb 2026 |
| 9914 | Evergreen Natural Resources LLC | | Gas Operator | Nov 2025 |
| 9915 | Evergreen Operating Co., LTD. | McAllen, TX 78502 | Oil & Gas Operator | Feb 2026 |
| 9916 | Evergreen Operating Company | Denver, CO 80202 | Oil & Gas Operator | Apr 1996 |
| 9917 | Evergreen Operating Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 2019 |
| 9918 | Evergreen Resource Co | Warren, PA 16365-4321 | Oil & Gas Operator | Dec 2024 |
| 9919 | Everman, Henry G. | Dansville, NY 14437 | Gas Operator | Dec 2024 |
| 9920 | Everquest Energy Corporation | Fredericksbrg, TX 78624 | Oil & Gas Operator | Sep 2025 |
| 9921 | Evertson Oil Company Inc | Kimball, NE 69145 | Oil & Gas Operator | Sep 2001 |
| 9922 | Evertson Operating Company Inc | Kimball, NE 69145 | Oil & Gas Operator | Nov 2022 |
| 9923 | Evinger, Ernest E. | Midland, TX 79705 | Oil & Gas Operator | Mar 2002 |
| 9924 | Evolution Energy LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Nov 2025 |
| 9925 | Evolution Oil & | | Oil & Gas Operator | Apr 1993 |
| 9926 | Evolution Operating Co., Inc. | Houston, TX 77079 | Oil & Gas Operator | Feb 2026 |
| 9927 | Evolution Resources, LLC | Houston, TX 77070 | Oil & Gas Operator | Feb 2026 |
| 9928 | Ew Carter Oil Co;Inc | | Oil & Gas Operator | Oct 2025 |
| 9929 | Ew Operating (NM), LLC | Fayetteville, AR 72703 | Oil & Gas Operator | Nov 2025 |
| 9930 | Ewm Services, LLC | Morganfield, KY 42437 | Oil Operator | Dec 2022 |
| 9931 | Ewsc Inc | Kenosha, WI 53142-3775 | Oil & Gas Operator | Apr 2020 |
| 9932 | Ewt Operating Company | Andrews, TX 79714 | Oil & Gas Operator | Feb 2026 |
| 9933 | Ex-Cel Resources, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2026 |
| 9934 | Exaro Energy II, LLC | Houston, TX 77057 | Oil & Gas Operator | Feb 2026 |
| 9935 | Excalibur E & P, LLC | Johnson City, TX 78636 | Oil & Gas Operator | Feb 2026 |
| 9936 | Excalibur Exploration Inc | Greentown, OH 44630 | Oil & Gas Operator | Dec 2020 |
| 9937 | Excalibur Operating, LLC | | Oil & Gas Operator | Nov 2024 |
| 9938 | Excalibur Prod C | | Oil & Gas Operator | Jun 1995 |
| 9939 | Excalibur Production Company, Inc. | McPherson, KS 67460 | Oil & Gas Operator | Sep 2025 |
| 9940 | Excalibur Resources LLC | Houston, TX 77002-5220 | Oil & Gas Operator | Nov 2025 |
| 9941 | Excalibur Resources, Inc. | | Oil & Gas Operator | Apr 1986 |
| 9942 | Exceed Petroleum LLC | Houston, TX 77070 | Oil & Gas Operator | Feb 2026 |
| 9943 | Excel Energy Co. | Coahoma, TX 79511 | Oil & Gas Operator | Feb 2026 |
| 9944 | Excel Energy, Inc. | Cisco, TX 76437 | Oil & Gas Operator | Feb 2026 |
| 9945 | Excel Oil & Gas L.L.C. | Bucyrus, KS 66013 | Oil Operator | Sep 2025 |
| 9946 | Excel Oil & Gas, Inc. | Waxahachie, TX 75168 | Oil & Gas Operator | Feb 2026 |
| 9947 | Excel Operating Corporation | | Oil & Gas Operator | Dec 2024 |
| 9948 | Excel Operating Inc | Dallas, TX 75234-7300 | Oil & Gas Operator | Jun 2022 |
| 9949 | Excel Production Inc | Lubbock, TX 79424-2341 | Oil Operator | Apr 2020 |
| 9950 | Excel Royalty Company, LLC | | Oil Operator | Jun 2022 |
| 9951 | Excelco Energy Inc. | Kingwood, TX 77339 | Oil & Gas Operator | Jul 2018 |
| 9952 | Excelsior Oil Corporation | | Oil & Gas Operator | May 1985 |
| 9953 | Exchange Avenue Production Co. | Weatherford, TX 76086 | Oil & Gas Operator | Sep 2021 |
| 9954 | Exchange Expl & Prodn Co | | Oil Operator | Oct 2023 |
| 9955 | Exchange Exploration & Production Co. | Dallas, TX 75219 | Oil & Gas Operator | Oct 2025 |
| 9956 | Exchange Oil & Gas Company | | Oil & Gas Operator | Oct 1996 |
| 9957 | Exchange Oil & Gas Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Oct 1987 |
| 9958 | Exco - North Coast Energy Inc | Kittanning, PA 16201 | Oil & Gas Operator | Dec 2018 |
| 9959 | Exco Operating Company, LP | Dallas, TX 75251 | Oil & Gas Operator | Feb 2026 |
| 9960 | Exco Partners Operating PTSHP LP | Dallas, TX 75251 | Oil & Gas Operator | Jan 2009 |
| 9961 | Exco Production Company, LP | Dallas, TX 75251 | Oil & Gas Operator | Dec 2009 |
| 9962 | Exco Resources (Pa), LLC | Dallas, TX 75251-2224 | Oil & Gas Operator | Nov 2025 |
| 9963 | Exco Resources (WV), Inc. | | Oil & Gas Operator | Dec 2020 |
| 9964 | Exco Resources Inc | Dallas, TX 75251 | Oil & Gas Operator | Oct 2025 |
| 9965 | Exco Resources Pa Inc | Warrendale, PA 15086-6501 | Oil & Gas Operator | Dec 2011 |
| 9966 | Exco/Hgi JV Assets, LLC | Dallas, TX 75251 | Oil & Gas Operator | Jun 2014 |
| 9967 | Executive Production, Inc. | Tyler, TX 75713 | Oil & Gas Operator | Feb 2026 |
| 9968 | Executive Properties Inc | Amarillo, TX 79110 | Oil & Gas Operator | Aug 1994 |
| 9969 | Exeter Drilling Company | Denver, CO 80217 | Oil & Gas Operator | Sep 1997 |
| 9970 | Exeter Exploration Co. | | Oil & Gas Operator | Aug 1985 |
| 9971 | Exit Inc | | Oil Operator | Dec 1983 |
| 9972 | Exit Oil & Gas | Flower Mound, TX 75028 | Oil & Gas Operator | Feb 2026 |
| 9973 | Exl Petroleum Operating Inc. | Midland, TX 79705 | Oil & Gas Operator | Feb 2020 |
| 9974 | Exl Petroleum, LP | Midland, TX 79705 | Oil & Gas Operator | Jun 2017 |
| 9975 | Exlco, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 9976 | Exley Oil & Gas Corp | Lemont, PA 16851-0425 | Oil & Gas Operator | Dec 2019 |
| 9977 | Exmoor Oil & Minerals Corp. | Dallas, TX 75225 | Oil & Gas Operator | May 1994 |
| 9978 | Exodus Energy, Inc. | Huntington Beach, CA 92615 | Oil & Gas Operator | Jul 2018 |
| 9979 | Exodus Gas & Oil LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2024 |
| 9980 | Exok Inc | Oklahoma City, OK 73116 | Oil & Gas Operator | Oct 2025 |
| 9981 | Exoko Operating Company Inc | Tulsa, OK 74170-0246 | Oil & Gas Operator | Jan 2006 |
| 9982 | Exorare Energy, Inc. | Dallas, TX 75218 | Oil & Gas Operator | Feb 2026 |
| 9983 | Exoro Energy, L.L.C. | | Oil & Gas Operator | Jun 2021 |
| 9984 | Exotic Oil & Gas LLC | Indiana, PA 15701-3634 | Oil & Gas Operator | Dec 2024 |
| 9985 | Exp, Inc. | Dallas, TX 75244 | Oil & Gas Operator | May 2003 |
| 9986 | Expand Oper LLC | Morgantown, WV 26508 | Oil & Gas Operator | Nov 2025 |
| 9987 | Expanding Energy Corporation | New Braunfels, TX 78132 | Oil & Gas Operator | Mar 2008 |
| 9988 | Expando Production Co. | | Oil & Gas Operator | Oct 1988 |
| 9989 | Expert Oil & Gas, L.L.C. | | Oil & Gas Operator | Nov 2024 |
| 9990 | Explo Oil, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Feb 2026 |
| 9991 | Exploration Associates | Oklahoma City, OK 73102-8606 | Oil & Gas Operator | Mar 2015 |
| 9992 | Exploration Associates II LLC | Oklahoma City, OK 73102-8815 | Oil & Gas Operator | Jan 2013 |
| 9993 | Exploration Company, The | San Antonio, TX 78258 | Oil & Gas Operator | Jun 2010 |
| 9994 | Exploration Energy Inc | Cortland, OH 44410 | Oil & Gas Operator | Dec 2009 |
| 9995 | Exploration Professionals Inc | Chelsea, OK 74016-0066 | Oil Operator | Dec 2023 |
| 9996 | Exploration Techniques Inc. | Houston, TX 77027 | Oil & Gas Operator | Feb 2026 |
| 9997 | Exploration Technologies Inc | Crescent, OK 73028-0546 | Oil & Gas Operator | Mar 2015 |
| 9998 | Explore Energy Corp. | Westerville, OH 43086 | Oil & Gas Operator | Dec 2016 |
| 9999 | Export Petroleum Corporation | Fort Worth, TX 76147 | Oil & Gas Operator | Feb 2026 |
| 10000 | Express Energy Group, LLC | Atlanta, TX 75551 | Oil & Gas Operator | Feb 2026 |