| 9001 | East Resources Management LLC | | Oil Operator | Oct 2010 |
| 9002 | East Resources MGMT LLC | Warrendale, PA 15086-7528 | Oil & Gas Operator | Dec 2010 |
| 9003 | East Resources, Inc. | Sewickley, PA 15143 | Oil & Gas Operator | Dec 2021 |
| 9004 | East Texas Crude Oil Corporation | Tyler, TX 75701 | Oil & Gas Operator | Jun 1994 |
| 9005 | East Texas Exploration, LLC | Edmond, OK 73003 | Oil & Gas Operator | Sep 2019 |
| 9006 | East Texas Production MGT. Inc | Athens, TX 75751 | Oil & Gas Operator | Apr 2025 |
| 9007 | Eastbrook Of Fairview Inc | Fairview, OK 73737-0148 | Oil Operator | Aug 2013 |
| 9008 | Eastco Gas Co. | Midland, TX 79707 | Oil & Gas Operator | Oct 1999 |
| 9009 | Eastco Operating LLC | | Oil & Gas Operator | Feb 2025 |
| 9010 | Eastern Amer Energy Corp | Charleston, WV 25304 | Oil & Gas Operator | Dec 2006 |
| 9011 | Eastern American Energy Corp | | Oil & Gas Operator | Dec 2008 |
| 9012 | Eastern Energy Corporation | Bowling Green, KY 42104 | Oil & Gas Operator | Dec 2014 |
| 9013 | Eastern Energy Dev Corporation | Oxford, CT 06478-1009 | Oil & Gas Operator | Apr 2020 |
| 9014 | Eastern Gas Trans & Storage Inc | Bridgeport, WV 26330-6919 | Oil & Gas Operator | Jan 2025 |
| 9015 | Eastern Gas Transmission And Storage, Inc | | Oil & Gas Operator | Dec 2021 |
| 9016 | Eastern Kansas Operating, LLC | Sun Lakes, AZ 85248 | Oil & Gas Operator | Apr 2018 |
| 9017 | Eastern Ky Oil & Gas, Inc | Paintsville, KY 41240 | Oil & Gas Operator | Dec 2020 |
| 9018 | Eastern Ky Prod Co | | Oil Operator | Dec 2023 |
| 9019 | Eastern Mountain Fuel Inc | Marietta, OH 45750-1240-1240 | Oil & Gas Operator | Dec 2002 |
| 9020 | Eastern Oil Corporation | Houston, TX 77070 | Oil & Gas Operator | Apr 2025 |
| 9021 | Eastern Oilwell Cement Co Inc | Seminole, OK 74818-1704 | Oil & Gas Operator | Aug 2008 |
| 9022 | Eastern Operating Company LLC | Gans, OK 74936 | Gas Operator | Jan 2025 |
| 9023 | Eastern Pacific Oil Co. | | Oil & Gas Operator | Dec 1998 |
| 9024 | Eastern Petroleu | | Oil & Gas Operator | Oct 1993 |
| 9025 | Eastern Petroleum Company | Girard, OH 44420 | Oil & Gas Operator | Sep 1995 |
| 9026 | Eastern States Exploration Co. | | Gas Operator | Dec 2021 |
| 9027 | Eastern States Oil & Gas, Inc. | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2020 |
| 9028 | Easterwood D E | Duncan, OK 73533-1013 | Oil & Gas Operator | Jun 2001 |
| 9029 | Eastex Energy LLC | Shawnee, OK 74804 | Oil Operator | Jan 2025 |
| 9030 | Eastex Gas Production Co. | Houston, TX 77042 | Oil & Gas Operator | Aug 1996 |
| 9031 | Eastex Operating, Inc. | Tyler, TX 75701 | Oil & Gas Operator | Jun 2003 |
| 9032 | Eastland Energy Group Inc | Byesville, OH 43723 | Oil & Gas Operator | Dec 2023 |
| 9033 | Eastland Exploration, Inc. | Austin, TX 78763 | Oil & Gas Operator | Apr 1997 |
| 9034 | Eastland Oil Company, The | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 9035 | Eastland Operating, L.L.C. | Ranger, TX 76470 | Oil & Gas Operator | Apr 2025 |
| 9036 | Eastok Energy Partners LLC | Edmond, OK 73013-1044 | Oil & Gas Operator | Jan 2025 |
| 9037 | Eastok Pipeline LLC | Midland, TX 79710 | Gas Operator | May 2019 |
| 9038 | Easy Street Oil, Inc. | Iola, KS 66749 | Oil Operator | Sep 1999 |
| 9039 | Eberle C Fred | Blackwell, OK 74631 | Oil Operator | Jun 1993 |
| 9040 | Eberly & Meade | Oklahoma City, OK 73118 | Oil & Gas Operator | Jul 2002 |
| 9041 | Eberspecher Drilling Inc | Casper, WY 82601 | Oil & Gas Operator | Dec 2000 |
| 9042 | Eblen Frank Syndicate Inc | Atlantic, IA 50022 | Oil & Gas Operator | Jul 2014 |
| 9043 | Ebony Oil Inc | | Gas Operator | Oct 1990 |
| 9044 | Ebs Oil & Gas Partners Op.Co.,LP | Dallas, TX 75219 | Oil & Gas Operator | May 2006 |
| 9045 | Eby Frank V Corporation | Yukon, OK 73085-0860 | Oil Operator | Sep 2016 |
| 9046 | Eby Oil Co. | | Oil Operator | Sep 2017 |
| 9047 | Ec Stryker Inc | Decatur, TX 76234 | Oil & Gas Operator | Dec 2015 |
| 9048 | Eca Holdings, L.P. | Sugar Land, TX 77478 | Oil & Gas Operator | Mar 2010 |
| 9049 | Ecapa Energy Company | Holliday, TX 76366 | Oil Operator | Apr 2025 |
| 9050 | Ecc Energy Corporation | Dewey, OK 74029 | Oil & Gas Operator | Feb 2020 |
| 9051 | Ecco | | Oil Operator | Dec 2024 |
| 9052 | Ech Production LLC | Abilene, TX 79608 | Oil Operator | Apr 2025 |
| 9053 | Echelon Land & Exploration Co. | Havana, FL 32333 | Oil Operator | Apr 1997 |
| 9054 | Echo Drilling Inc | Dover, OH 43622 | Oil & Gas Operator | Dec 2023 |
| 9055 | Echo E & P LLC | Oklahoma City, OK 73102-6439 | Oil & Gas Operator | Jan 2025 |
| 9056 | Echo Hawk Energy LLC | Tulsa, OK 74103 | Gas Operator | Dec 2010 |
| 9057 | Echo Production Inc | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 9058 | Echols & Assoc. | | Oil Operator | Apr 1986 |
| 9059 | Echols & Gray Bros. | Snyder, TX 79549 | Oil & Gas Operator | Jul 2003 |
| 9060 | Echols Oil Company | Caddo, TX 76429 | Oil & Gas Operator | Jan 2012 |
| 9061 | Echols Oil Company, L.L.C. | Caddo, TX 76429 | Oil & Gas Operator | Apr 2025 |
| 9062 | Eck Petroleum LLC | Kingman, KS 67068 | Oil Operator | Nov 2019 |
| 9063 | Eclipse Oil & Gas, Inc. | Midland, TX 79703 | Oil & Gas Operator | Apr 2025 |
| 9064 | Eclipse Petroleum | | Oil & Gas Operator | Aug 1991 |
| 9065 | Eclipse Petroleum Corporation | La Grange, TX 78945 | Oil & Gas Operator | Aug 2003 |
| 9066 | Eclipse Production Company | Bartlesville, OK 74003 | Oil Operator | Nov 2005 |
| 9067 | Eclipse Resources I LP | Spring, TX 77389 | Oil & Gas Operator | Dec 2021 |
| 9068 | Eclipse Resources-Ohio LLC | Morgantown, WV 26508 | Oil & Gas Operator | Dec 2020 |
| 9069 | Eclipse Services, Inc. * | La Grange, TX 78945 | Oil & Gas Operator | Jul 2003 |
| 9070 | Ecm Exploration Inc | Punxsutawney, PA 15767-6601 | Gas Operator | Dec 2024 |
| 9071 | Eco Production LLC | Wooster, OH 44691-4683-4683 | Oil & Gas Operator | Dec 2023 |
| 9072 | Ecological Energy, Inc. | Morgantown, WV 26507-0000 | Oil & Gas Operator | Dec 2021 |
| 9073 | Ecology Auto Wrecking | | Oil Operator | Dec 2005 |
| 9074 | Ecoserv Environmental SVCS, LLC | Abbeville, LA 70510 | Oil Operator | Apr 2025 |
| 9075 | Ed Broome, Inc. | Glenville, WV 26351 | Oil & Gas Operator | Dec 2021 |
| 9076 | Ed I. Estis | | Oil & Gas Operator | Sep 1998 |
| 9077 | Ed Shea | | Oil Operator | Sep 1990 |
| 9078 | Edco Drilling & Producing | MT Gilead, OH 43338 | Oil & Gas Operator | Dec 2006 |
| 9079 | Edco Energy, Inc. | Austin, TX 78738 | Oil & Gas Operator | May 2003 |
| 9080 | Edco Petroleum, Inc. | Dallas, TX 75202 | Oil & Gas Operator | Mar 2005 |
| 9081 | Eddie Mayo | | Oil Operator | Jun 2006 |
| 9082 | Eddie'S Royalties, Inc. | Rising Star, TX 76471 | Oil & Gas Operator | Apr 2025 |
| 9083 | Eddie'S Submersible Service Inc | Shawnee, OK 74801-5047 | Oil & Gas Operator | Mar 2015 |
| 9084 | Eddings Steve L | Osage, OK 74054 | Oil & Gas Operator | Jul 2022 |
| 9085 | Eddleman, M. W. | Nichols Hill, OK 73116 | Oil & Gas Operator | Nov 2000 |
| 9086 | Eddy Enterprises, Inc. | | Oil & Gas Operator | Sep 2023 |
| 9087 | Eddy Oil Company | | Oil & Gas Operator | May 2013 |
| 9088 | Eddy* Harold E & Florence L | | Oil Operator | Jun 2010 |
| 9089 | Eddy, Dale E. | Andover, NY 14806 | Oil & Gas Operator | Dec 2023 |
| 9090 | Eden Central School District | Eden, NY 14057 | Gas Operator | Dec 2023 |
| 9091 | Eden VFW Post No 8265 | Eden, NY 14057 | Gas Operator | Dec 2023 |
| 9092 | Edf Trading Resources, LLC | Austin, TX 78746 | Oil & Gas Operator | Jul 2015 |
| 9093 | Edgar, Verlon | Belle Chasse, LA 70037 | Oil & Gas Operator | Feb 1998 |
| 9094 | Edge Barnett Operating Comp LLC | Fort Worth, TX 76107 | Gas Operator | Nov 2013 |
| 9095 | Edge Energy II LLC | Golden, CO 80401 | Oil & Gas Operator | Jan 2025 |
| 9096 | Edge Energy LLC | | Oil & Gas Operator | Jan 2025 |
| 9097 | Edge Exploration, Inc. | Graham, TX 76450 | Oil & Gas Operator | Mar 2006 |
| 9098 | Edge Oil & Gas Properties | Archer City, TX 76351 | Oil & Gas Operator | Apr 2025 |
| 9099 | Edge Oil And Gas, LLC | Abilene, TX 79602 | Oil Operator | Apr 2025 |
| 9100 | Edge Oil Company Inc | Cleveland, OK 74020-0284 | Oil & Gas Operator | Feb 2024 |