| 1 | Apache Corporation | Houston, TX 77056 | Oil & Gas Operator | Apr 2024 |
| 2 | Bannon Energy Inc | Houston, TX 77068 | Oil & Gas Operator | Jun 1998 |
| 3 | Center Dean Dba Center Operating Co | | Oil & Gas Operator | Jul 2003 |
| 4 | Collins C R And Collins F Dba Collins Brothers Oil | | Oil & Gas Operator | Jul 2008 |
| 5 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
| 6 | Countrymark Energy Resources, LLC | MT Vernon, IN 47620 | Oil & Gas Operator | Dec 2022 |
| 7 | Dart Oil & Gas Corporation | Mason, MI 48854 | Oil & Gas Operator | Jun 2018 |
| 8 | Dominion Midwest Energy Inc | | Oil & Gas Operator | Dec 2007 |
| 9 | Don Yohe Enterprises Inc. | Armada, MI 48005 | Oil & Gas Operator | Apr 2018 |
| 10 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 11 | Exxon Corporation | Houston, TX 77210 | Oil & Gas Operator | Nov 2023 |
| 12 | Exxonmobil Oil Corp | Houston, TX 77210 | Oil & Gas Operator | Mar 2024 |
| 13 | Gage Energy Inc | | Oil Operator | Nov 2015 |
| 14 | General Energy Resources And Technology Corp | | Oil & Gas Operator | Jan 1998 |
| 15 | Global Associates Inc | | Oil & Gas Operator | Oct 1998 |
| 16 | Gorlewski Resources LLC And C-More Production LLC | | Oil Operator | Sep 2023 |
| 17 | Haischer James W Dba Haischer James W And Assoc | | Oil & Gas Operator | Dec 2001 |
| 18 | Hobson Petroleum Corp | | Oil & Gas Operator | Sep 1991 |
| 19 | Jordan Development Company LLC | Traverse City, MI 49686 | Oil & Gas Operator | Jan 2024 |
| 20 | Jordan Energy Exploration Co LLC | | Oil Operator | Dec 2022 |
| 21 | Kelly James O | | Oil & Gas Operator | Apr 2000 |
| 22 | Kelly James O Dba Kelly Oil Co | | Oil & Gas Operator | Aug 1987 |
| 23 | Kimbark Oil & Gas Company | Denver, CO 80203 | Oil & Gas Operator | May 2007 |
| 24 | Klabzuba Oil & Gas Inc | Denver, CO 80202 | Oil & Gas Operator | Aug 2012 |
| 25 | Koyl Oil Inc | | Oil & Gas Operator | Feb 2024 |
| 26 | Kulka And Schmidt Inc | | Oil & Gas Operator | Dec 1992 |
| 27 | Ladd Petroleum Corp. | Denver, CO 80202 | Oil & Gas Operator | Oct 2004 |
| 28 | Loe Petroleum & Environmental Engineering LLC | | Oil Operator | Apr 2021 |
| 29 | Luchshyn Harry E And Dannemiller William F | | Oil & Gas Operator | Dec 1994 |
| 30 | M G U Development Co | | Oil & Gas Operator | Jun 1987 |
| 31 | M G U Development Co And Mask Thomas B And Ma020 | | Oil & Gas Operator | Jun 1987 |
| 32 | Marathon Oil Company | Houston, TX 77024 | Oil & Gas Operator | Feb 2024 |
| 33 | Mask Thomas B | | Oil & Gas Operator | Jul 1991 |
| 34 | Mask Thomas B And Markel Ray D And Wood K P | | Oil & Gas Operator | Aug 1986 |
| 35 | Mask Thomas B And Patrick Petroleum Corp | | Oil & Gas Operator | Jun 1992 |
| 36 | Maskeny Edward D | | Oil & Gas Operator | Jun 1998 |
| 37 | Matrix Exploration And Development LLC | | Oil & Gas Operator | Oct 2008 |
| 38 | McConnell And Scully Inc | | Oil & Gas Operator | Jan 2024 |
| 39 | Meridian Resources, LLC | Evansville, IN 47715 | Oil Operator | Feb 2024 |
| 40 | Michigan Gas Utilities Co | | Oil & Gas Operator | Mar 2011 |
| 41 | Michigan Geosearch Inc | Lansing, MI 48917 | Oil & Gas Operator | Dec 2023 |
| 42 | Miller Energy Company II LLC | | Oil & Gas Operator | Feb 2024 |
| 43 | Mosbacher Energy Company | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 44 | Mutch Harry L | | Oil & Gas Operator | Oct 1991 |
| 45 | Mutch J O | | Gas Operator | Mar 1990 |
| 46 | Nu Energy Operating Inc | | Oil & Gas Operator | Sep 2023 |
| 47 | Omimex Energy, Inc. | Fort Worth, TX 76120 | Oil & Gas Operator | Jun 2023 |
| 48 | Oryx Energy Company | Dallas, TX 75221 | Oil & Gas Operator | May 2002 |
| 49 | Patrick Petroleum Corp Of Michigan | | Oil & Gas Operator | Nov 1993 |
| 50 | Paxton Resources LLC | | Oil & Gas Operator | Feb 2024 |
| 51 | Peninsular Oil & Gas Co | Ada, MI 49301-96-96 | Oil & Gas Operator | Dec 2001 |
| 52 | Petco Petroleum Corp | Hinsdale, IL 60521 | Oil & Gas Operator | Dec 2023 |
| 53 | Preston Oil Co | Woodlands, TX 77380 | Oil & Gas Operator | Dec 2009 |
| 54 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | Apr 2024 |
| 55 | Pure Oil Co | | Oil & Gas Operator | Dec 1996 |
| 56 | R And B Energy Co LLC | | Oil Operator | Dec 2011 |
| 57 | Rainbow Oil And Gas Inc | | Oil & Gas Operator | Jun 2016 |
| 58 | Ranch Production Co | | Oil & Gas Operator | Jul 2000 |
| 59 | Range Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2000 |
| 60 | Range Resources Appalachia LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Jan 2024 |
| 61 | Reef Petroleum Corp | | Oil & Gas Operator | Feb 1994 |
| 62 | Rovsek Adolph E | | Oil & Gas Operator | Oct 1991 |
| 63 | S And M Liquid Tire Fill Inc | | Oil & Gas Operator | Mar 2024 |
| 64 | Samson Natural Gas Co | | Oil & Gas Operator | Oct 1992 |
| 65 | Savoy Energy LP | Traverse City, MI 49685-1560-1560 | Oil & Gas Operator | Feb 2024 |
| 66 | Savoy Exploration Inc | | Oil & Gas Operator | Feb 2020 |
| 67 | Schmude Oil Inc | | Oil & Gas Operator | Feb 2024 |
| 68 | Smith Petroleum Company | Spring, TX 77389 | Oil & Gas Operator | Apr 2024 |
| 69 | Sullivan & Co. | Tulsa, OK 74114 | Oil & Gas Operator | May 2022 |
| 70 | Summit Petroleum Corp Of MT Pleasant | | Oil & Gas Operator | Dec 2007 |
| 71 | Sun Exploration-Production Co. | | Oil & Gas Operator | Jan 1990 |
| 72 | Tiger Development LLC | | Oil & Gas Operator | Aug 2019 |
| 73 | Trolz Glynn And Associates Inc | | Oil & Gas Operator | Apr 1995 |
| 74 | Tuscola Energy Inc | | Oil & Gas Operator | Feb 2024 |
| 75 | Union Oil Co Of California | Midland, TX 79706 | Oil & Gas Operator | Jan 2022 |
| 76 | Uptex Operating Inc. | Dallas, TX 75201 | Oil & Gas Operator | May 2011 |
| 77 | Vanbelois Russell Inc | | Oil & Gas Operator | Apr 2000 |
| 78 | Wadi Petroleum Inc | Houston, TX 77014 | Oil & Gas Operator | May 2018 |
| 79 | Wagner Gas And Oil LLC | | Oil Operator | Nov 2021 |
| 80 | Wagner Oil And Gas | | Oil & Gas Operator | Dec 2016 |
| 81 | Ward-Williston Drilling Co. | | Oil & Gas Operator | Dec 1994 |
| 82 | West Bay Exploration Company | Muenster, TX 76252 | Oil & Gas Operator | Feb 2024 |
| 83 | Wisley Robert | | Oil & Gas Operator | Dec 1994 |
| 84 | Wolverine Environmental Production Inc | | Oil & Gas Operator | Sep 2000 |