| 1 | 3 M Drilling | MT Hope, OH 44660 | Oil & Gas Operator | Dec 1993 |
| 2 | 84 Energy LLC | Sugar Land, TX 77487 | Oil & Gas Operator | Dec 2025 |
| 3 | A & R Energy Inc | Pittsburgh, PA 15244 | Oil & Gas Operator | Dec 2013 |
| 4 | A & R Oil & Gas Of Monroe & Washington Counties LLC | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2024 |
| 5 | A Berry Enterprises LLC | Freeport, OH 43973 | Oil & Gas Operator | Dec 2024 |
| 6 | A Miller Oil Company | Millersburg, OH 44654 | Oil & Gas Operator | Dec 2024 |
| 7 | A Producing Co | Wooster, OH 44691 | Oil & Gas Operator | Dec 1992 |
| 8 | A S Energy | Tiffin, OH 44883 | Oil & Gas Operator | Dec 2001 |
| 9 | A S N F Producing Inc | N. Canton, OH 44720 | Oil & Gas Operator | Dec 2013 |
| 10 | A W Yenne Trust No 2 | Wooster, OH 44691 | Oil & Gas Operator | Dec 2018 |
| 11 | A-W Wellman Limited | East Sparta, OH 44626 | Oil & Gas Operator | Dec 2001 |
| 12 | Ab Resources Oh LLC | Brecksville, OH 44141 | Oil & Gas Operator | Dec 2010 |
| 13 | Absolute Energy Corp | Columbus, OH 43213 | Oil & Gas Operator | Dec 1997 |
| 14 | Action Petroleum Inc | Atwater, OH 44201 | Oil & Gas Operator | Dec 1986 |
| 15 | Adair W C & Co Inc. | Logan, OH 43138 | Oil & Gas Operator | Dec 1991 |
| 16 | Adobe Resources Corporation | Midland, TX 79701 | Oil & Gas Operator | Aug 2002 |
| 17 | Aed Development Inc | Columbus, OH 43220 | Oil & Gas Operator | Dec 1995 |
| 18 | Aegean Oil & Gas Inc | Brunswick, OH 44212 | Oil & Gas Operator | Dec 1993 |
| 19 | Aim Energy LLC | North Canton, OH 44720 | Oil & Gas Operator | Dec 2024 |
| 20 | Akron Oil Corp | Hackensack, NJ 07602 | Oil & Gas Operator | Dec 1989 |
| 21 | All States Oil & Producing Co Inc | Canton, OH 44702 | Oil & Gas Operator | Dec 2018 |
| 22 | Allegheny Producers Inc | Cambridge, OH 43725 | Oil & Gas Operator | Dec 1984 |
| 23 | Allen Mabel C | Dublin, OH 43017 | Oil Operator | Dec 1988 |
| 24 | Alliance Petroleum Corporation | Canton, OH 44718-2553 | Oil & Gas Operator | Dec 2019 |
| 25 | Allied Oil Field Services LTD | Willoughby, OH 44094 | Oil & Gas Operator | Dec 2021 |
| 26 | Alna Energy LLC | New Lexington, OH 43764 | Oil & Gas Operator | Dec 2023 |
| 27 | Alsid Oil & Gas | Hanoverton,, OH 44423 | Oil & Gas Operator | Dec 2003 |
| 28 | Altex Inc | Corning, OH 43730 | Oil & Gas Operator | Dec 1985 |
| 29 | Altheirs Oil, Inc. | Corning, OH 43730 | Oil & Gas Operator | Dec 2024 |
| 30 | Altier Brothers Inc | Corning, OH 43730 | Oil & Gas Operator | Dec 2024 |
| 31 | Altier Petroleum Inc | Corning, OH 43730 | Oil & Gas Operator | Dec 2024 |
| 32 | Altos Petroleum Serv Inc | Bristolville, OH 44402 | Oil & Gas Operator | Dec 1992 |
| 33 | Am-Tek Oil Inc | Spokane, WA 99201 | Oil & Gas Operator | Dec 2023 |
| 34 | Amac Inc | Newark, OH 43055 | Oil & Gas Operator | Dec 1989 |
| 35 | Amer Energy Develop Inc | Columbus, OH 43220 | Oil & Gas Operator | Dec 1989 |
| 36 | American Energy Associates Inc | Cortland, OH 44410 | Oil & Gas Operator | Dec 2024 |
| 37 | American Energy Corporation | Bealsville, OH 43716 | Oil & Gas Operator | Dec 2019 |
| 38 | American Energy Utica LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Sep 2015 |
| 39 | American Natural Gas Inc | Saint Clairsville, OH 43950 | Oil & Gas Operator | Dec 2020 |
| 40 | American Petroleum Corp | Addison, TX 75001 | Oil & Gas Operator | Dec 2025 |
| 41 | Amex Energy Consults Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 1988 |
| 42 | Amtex Oil & Gas Inc | Canton, OH 44711 | Oil & Gas Operator | Dec 2004 |
| 43 | Amtuck Oil | Logan, OH 43138 | Oil & Gas Operator | Dec 2010 |
| 44 | An-Car Oil Co Inc | Owensboro, KY 42302-1329 | Oil & Gas Operator | Dec 2014 |
| 45 | Anadarko E&P Onshore LLC | Houston, TX 77046 | Oil & Gas Operator | Dec 2025 |
| 46 | Anderson Bobby B | Fleming, OH 45729 | Oil & Gas Operator | Dec 2024 |
| 47 | Anderson Energy Inc | Wichita, KS 67278 | Oil & Gas Operator | Apr 2025 |
| 48 | Anderson, Allen M | Fleming, OH 45729 | Oil & Gas Operator | Dec 2023 |
| 49 | Andy Columbus Drilling & Producing | New London, OH 44851 | Oil & Gas Operator | Dec 2020 |
| 50 | Annarock Petroleum LLC | Winter Garden, FL 34787 | Oil & Gas Operator | Dec 2024 |
| 51 | Anschutz Corporation | Denver, CO 80202 | Oil & Gas Operator | Sep 2016 |
| 52 | Antero Resources Corporation | Denver, CO 80202 | Oil & Gas Operator | Jun 2025 |
| 53 | Aocswd LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2024 |
| 54 | Ap Production LLC | Utica, OH 43080 | Oil & Gas Operator | Dec 2023 |
| 55 | Apex Crude Oil Co | Logan, OH 43138 | Oil & Gas Operator | Dec 1996 |
| 56 | Appalachian Ener Tech Inc | Clearwater, FL 33518 | Oil & Gas Operator | Dec 2001 |
| 57 | Appalachian Energy Inc | Pittsburgh, PA 15220 | Gas Operator | Dec 2008 |
| 58 | Appalachian Energy Res LLC | Lower Salem, OH 45745 | Oil & Gas Operator | Dec 2016 |
| 59 | Appalachian Expl Inc | Hartville, OH 44632 | Oil & Gas Operator | Dec 1989 |
| 60 | Appalachian Petrol Corp | Girard, OH 44420 | Oil & Gas Operator | Dec 1989 |
| 61 | Arapaho Ventures Of Ny | Englewood, CO 80155 | Oil & Gas Operator | Dec 1990 |
| 62 | Armstrong Robert D | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2024 |
| 63 | Arrowhead Oil & Gas Co | Gambier, OH 43022 | Oil & Gas Operator | Dec 2010 |
| 64 | Arsenal Resources LLC | Wexford, PA 15090 | Oil & Gas Operator | Dec 2021 |
| 65 | Artex Energy Group LLC | Marietta, OH 45750-5362 | Oil & Gas Operator | Jun 2022 |
| 66 | Artex Oil Company | Marietta, OH 45750 | Oil & Gas Operator | Dec 2024 |
| 67 | Arysta Lifescience North America LLC | Cary, NC 27513 | Oil & Gas Operator | Dec 2024 |
| 68 | Ascent Resources Utica LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Jun 2025 |
| 69 | Ashcraft James C | Frazeysburg, OH 43822 | Oil Operator | Dec 1997 |
| 70 | Ashland Exploration Inc | Houston, TX 77218 | Oil & Gas Operator | Nov 2000 |
| 71 | Asset Resources Inc | Mentor, OH 44060 | Oil & Gas Operator | Dec 2010 |
| 72 | Atha Edward E | Athens, OH 45701 | Oil & Gas Operator | Dec 1987 |
| 73 | Atla Energy Inc | Zanesville, OH 43702-2607 | Oil & Gas Operator | Dec 2003 |
| 74 | Atlantic Energy Corp Inc | Marietta, OH 45750 | Oil & Gas Operator | Dec 1991 |
| 75 | Atlas Energy Group Inc | Uniontown, OH 44685-9575 | Oil & Gas Operator | Dec 2011 |
| 76 | Atlas Noble LLC | Fort Worth, TX 76116-5423 | Oil & Gas Operator | Jun 2020 |
| 77 | Atwood Energy Inc | Port Washington, OH 43837-9214 | Oil & Gas Operator | Dec 1993 |
| 78 | Atwood Resources Inc | Houston, TX 72151 | Oil & Gas Operator | Dec 1993 |
| 79 | Augerhead Oil LLC | Lewisville, OH 43754 | Oil & Gas Operator | Dec 2024 |
| 80 | Aurora Energy LTD | Traverse City, MI 49684 | Oil & Gas Operator | Dec 2006 |
| 81 | Autumn Ridge Enterprises LLC | Wooster, OH 44691 | Oil & Gas Operator | Dec 2017 |
| 82 | Ava Gas Corp | Columbus, OH 43215 | Oil & Gas Operator | Dec 2013 |
| 83 | Aw Tipka Oil & Gas Inc | Dover, OH 44622 | Oil & Gas Operator | Dec 2024 |
| 84 | B & B Oilfield Services Inc | Windham, OH 44288 | Oil & Gas Operator | Dec 2024 |
| 85 | B & B Petroleum | Fleming, OH 45729 | Oil & Gas Operator | Dec 2006 |
| 86 | B & B Wolford Family Holdings LLC | Frazeysburg, OH 43822 | Oil Operator | Dec 2024 |
| 87 | B & E Resources LLC | Beverly, OH 45715 | Oil & Gas Operator | Dec 2024 |
| 88 | B & J Drilling Co | Danville, OH 43014 | Oil & Gas Operator | Dec 2024 |
| 89 | B & K Drilling Co | Warren, OH 44481 | Oil & Gas Operator | Dec 1994 |
| 90 | B & K Oil & Gas Co Inc | Lewisville, OH 43754 | Oil & Gas Operator | Dec 2024 |
| 91 | B & L Oil | Sardis, OH 43946 | Oil & Gas Operator | Jun 2025 |
| 92 | B & N Coal Inc | Dexter City, OH 45727 | Oil & Gas Operator | Dec 2024 |
| 93 | B B Energy Corp | Pequannock, NJ 07440 | Oil & Gas Operator | Dec 1994 |
| 94 | B J Inc | Crossville, TN 38555 | Oil & Gas Operator | Dec 1984 |
| 95 | B-J Of Ohio Inc | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1997 |
| 96 | Baay Oil LLC | Akron, OH 44333 | Oil & Gas Operator | Dec 2024 |
| 97 | Babcock Ronald W | Newark, OH 43055 | Oil & Gas Operator | Dec 2019 |
| 98 | Baird Bros Sawmill Inc | Canfield, OH 44406 | Oil & Gas Operator | Dec 2012 |
| 99 | Baird Family Limited Partnership | Canfield, OH 44406 | Oil & Gas Operator | Dec 2024 |
| 100 | Baker Oil & Gas | St Louisville, OH 43071 | Oil & Gas Operator | Sep 2014 |