| 1 | E & B Equipment | Liberty, TX 77575 | Oil & Gas Operator | Feb 2010 |
| 2 | E & B Natural Resources Management | Guilderland Centek, NY 12085 | Oil & Gas Operator | Oct 2025 |
| 3 | E & B Natural Resources Management Corporation | Hays, KS 67601 | Oil & Gas Operator | Nov 2025 |
| 4 | E & E Construction Company | Wichita Falls, TX 76308 | Oil Operator | Dec 2025 |
| 5 | E & E Drilling Co., Inc. | Wichita Falls, TX 76308 | Oil Operator | Dec 2025 |
| 6 | E & E Enterprises | Enid, OK 73703-1420 | Oil & Gas Operator | Nov 2014 |
| 7 | E & E Oil | | Oil Operator | Dec 2019 |
| 8 | E & E Production Company, Inc. | | Oil & Gas Operator | Dec 2004 |
| 9 | E & R Oil | San Angelo, TX 76906 | Oil & Gas Operator | Dec 2025 |
| 10 | E & S Operating Company | Caddo, TX 76429 | Oil & Gas Operator | Feb 2018 |
| 11 | E & S Production Corp. | | Oil & Gas Operator | Dec 1988 |
| 12 | E & S Resources LLC | Crescent, OK 73028 | Oil & Gas Operator | Aug 2025 |
| 13 | E & T Limited Liability Co. | | Oil & Gas Operator | Oct 2025 |
| 14 | E & W Oil, Inc. | Seguin, TX 78155 | Oil & Gas Operator | Dec 2025 |
| 15 | E & W Production | Olney, TX 76374 | Oil & Gas Operator | Aug 2018 |
| 16 | E D Markham | | Gas Operator | Nov 1978 |
| 17 | E G Operating Co | Austin, TX 78746 | Oil & Gas Operator | Jun 1997 |
| 18 | E I C Inc | Coshocton, OH 43812 | Oil & Gas Operator | Dec 1984 |
| 19 | E K Energy LLC | Colony, KS 66015 | Oil Operator | Jun 2025 |
| 20 | E L Fundingsland | Littleton, CO 80160 | Oil & Gas Operator | Jun 2016 |
| 21 | E L M Oil Company | Lockhart, TX 78644 | Oil & Gas Operator | May 2000 |
| 22 | E Lee Mills | | Oil Operator | Aug 1987 |
| 23 | E Lyle Johnson Inc | Oklahoma City, OK 73142 | Oil & Gas Operator | Oct 2025 |
| 24 | E O R Petroleum | | Oil Operator | Oct 1987 |
| 25 | E P C Oil & Gas, Inc. | Caldwell, TX 77836 | Oil & Gas Operator | Dec 2025 |
| 26 | E R Operating Company | Dallas, TX 75225 | Oil & Gas Operator | Jan 2025 |
| 27 | E S P Developmne | | Oil Operator | Oct 1993 |
| 28 | E Texas Production MGMT Co Inc | | Oil & Gas Operator | Oct 1996 |
| 29 | E W D Oil | Winters, TX 79567 | Oil & Gas Operator | Dec 2025 |
| 30 | E&B Natural Resources MGT Corp | Bakersfield, CA 93308 | Oil & Gas Operator | Aug 2017 |
| 31 | E&E Oil LLC | Canton, KS 67428 | Oil Operator | Jun 2025 |
| 32 | E-Cor, Inc. | Austin, TX 78734 | Gas Operator | Feb 1999 |
| 33 | E-L Gas Co., LTD. | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2001 |
| 34 | E-P Oil Co. Inc. | Luling, TX 78648 | Oil & Gas Operator | Dec 2025 |
| 35 | E-Z Mart Stores, Inc. | | Oil Operator | Jul 2004 |
| 36 | E-Z Serve Of Ca Inc. | | Oil Operator | Dec 1989 |
| 37 | E. & H. Oil Company | Woodson, TX 76491 | Oil & Gas Operator | May 1998 |
| 38 | E. & S. Drilling Company | | Oil & Gas Operator | Feb 1995 |
| 39 | E. A. Courtney | | Oil & Gas Operator | Oct 1978 |
| 40 | E. B. Germany & Sons, LLC | | Oil & Gas Operator | Dec 2011 |
| 41 | E. C. Green | | Gas Operator | Dec 1989 |
| 42 | E. Conway Butts, Inc. | | Oil & Gas Operator | Apr 1991 |
| 43 | E. G. Williamson, Jr. | | Oil Operator | Jan 1993 |
| 44 | E. L. Cox And Stanrich Oil Co. | | Oil & Gas Operator | Jul 1981 |
| 45 | E. L. Daniels Drilling Contractor | | Oil Operator | Feb 2014 |
| 46 | E. L. Larry | | Oil & Gas Operator | Mar 1989 |
| 47 | E. M. Self | | Oil Operator | Feb 1981 |
| 48 | E. P. Alexander | | Oil Operator | Jan 1984 |
| 49 | E. P. Alexander, Et Al | | Oil Operator | Jan 1984 |
| 50 | E. T. Oil Company | Luling, TX 78648 | Oil & Gas Operator | Dec 2025 |
| 51 | E. T. S. Enterprises, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Jul 1996 |
| 52 | E.A.T.E. Operating | Natalia, TX 78059 | Oil & Gas Operator | Dec 2025 |
| 53 | E.C. Hindman Oil And Gas | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 54 | E.C. Production, L.L.C. | Rosenberg, TX 77471 | Oil & Gas Operator | Dec 2025 |
| 55 | E.G. Operating | Dallas, TX 75206 | Oil & Gas Operator | Mar 2008 |
| 56 | E.G.L. Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 57 | E/T Petroleum Co. | Big Lake, TX 76932 | Oil & Gas Operator | Aug 2014 |
| 58 | E2 Operating LLC | Tulsa, OK 74135 | Oil & Gas Operator | Dec 2025 |
| 59 | E4 Production LLC | Comanche, OK 73529 | Oil Operator | Sep 2025 |
| 60 | Ea Petroleum Inc | Norman, OK 73072-4147 | Oil & Gas Operator | May 2006 |
| 61 | Eaa Operating, LLC | Perryton, TX 79070 | Oil & Gas Operator | Dec 2025 |
| 62 | Eado Production, Inc. | Kermit, TX 79745 | Oil & Gas Operator | Aug 2012 |
| 63 | Eads Operating C | | Oil Operator | Jun 1990 |
| 64 | Eads Operating Company | | Oil & Gas Operator | Mar 1991 |
| 65 | Eager Oil Company | Stanhope, NJ 07874-0577 | Oil Operator | Jun 2014 |
| 66 | Eagle Capital Partners, LLC | Eunice, NM 88231 | Oil & Gas Operator | Dec 2025 |
| 67 | Eagle Creek Colony | Galata, MT 59444 | Oil & Gas Operator | Sep 2025 |
| 68 | Eagle Creek Corporation | Andover, KS 67002 | Oil & Gas Operator | Jun 2025 |
| 69 | Eagle Creek Resources, LLC | Sewickley, PA 15143 | Oil & Gas Operator | Dec 2024 |
| 70 | Eagle Energy | Midland, TX 79710 | Oil & Gas Operator | Aug 1994 |
| 71 | Eagle Energy Acquisitions LP | Houston, TX 77002 | Oil & Gas Operator | Aug 2014 |
| 72 | Eagle Energy Development Co | La Porte, TX 77571 | Oil & Gas Operator | Dec 2024 |
| 73 | Eagle Energy Production LLC | Tulsa, OK 74136-1935 | Oil & Gas Operator | Mar 2020 |
| 74 | Eagle Energy Resources, LLC | La Porte, TX 77571 | Oil & Gas Operator | Dec 2025 |
| 75 | Eagle Energy, Inc. | Moreland, KS 67650 | Oil & Gas Operator | Dec 2021 |
| 76 | Eagle Expl Co/Johnson J | Bolivar, OH 44612 | Oil & Gas Operator | Dec 1989 |
| 77 | Eagle Exploratio | | Oil & Gas Operator | Oct 1991 |
| 78 | Eagle Exploration Co., Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Dec 2019 |
| 79 | Eagle Exploration Production LLC | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2025 |
| 80 | Eagle Ford Hunter Resources,Inc. | Houston, TX 77024 | Oil & Gas Operator | Apr 2013 |
| 81 | Eagle Ford Oil Co., Inc. | Houston, TX 77057 | Oil & Gas Operator | Dec 2025 |
| 82 | Eagle Hydrocarbons (Texas) Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 83 | Eagle Hydrocarbons Inc. | Houston, TX 77079 | Oil & Gas Operator | Jun 2020 |
| 84 | Eagle Line Corp | Pleasantville, PA 16341-1705 | Oil Operator | Dec 2015 |
| 85 | Eagle Minerals & Oil Prop Inc | Tulsa, OK 74119 | Oil & Gas Operator | Jan 2002 |
| 86 | Eagle Minerals Inc | Tulsa, OK 74119 | Oil Operator | Jun 1998 |
| 87 | Eagle Mountain Energy | Columbus, OH 43214 | Oil & Gas Operator | Dec 2002 |
| 88 | Eagle Natural Resources, LLC | Eunice, NM 88231 | Oil Operator | Dec 2025 |
| 89 | Eagle Oil & Gas Co. | Dallas, TX 75225 | Oil & Gas Operator | Dec 2025 |
| 90 | Eagle Oil & Gas Properties Inc | Pleasant Prarie, WI 53158-4719 | Oil & Gas Operator | Jan 2016 |
| 91 | Eagle Oil & Gas, Inc. | | Oil & Gas Operator | Nov 1984 |
| 92 | Eagle Oil & Gas, LLC (Dba Eagle Oil & Gas Co.) | | Oil & Gas Operator | Dec 2021 |
| 93 | Eagle Oil Compan | | Oil Operator | Jul 1990 |
| 94 | Eagle Oil Management Co., LLC | | Oil & Gas Operator | Jan 2023 |
| 95 | Eagle Oil Management, LLC | Shreveport, LA 71106 | Oil & Gas Operator | Dec 2025 |
| 96 | Eagle Oil, LLC | Moline, KS 67353 | Oil Operator | Oct 2016 |
| 97 | Eagle Operating | Midland, TX 79707 | Oil & Gas Operator | May 2013 |
| 98 | Eagle Operating Company | Tulsa, OK 74146-5730 | Oil & Gas Operator | Aug 2020 |
| 99 | Eagle Operating, Inc. | Minot, ND 58701 | Oil & Gas Operator | Nov 2025 |
| 100 | Eagle Petroleum | | Oil & Gas Operator | Nov 1995 |