| 1 | Acadian Gas Pipeline System | | Oil Operator | Jan 2024 |
| 2 | Ansythe Exploration Co., Inc. | | Oil & Gas Operator | Oct 1982 |
| 3 | Austral Oil Company Incorporated | Sulphur, LA 70663 | Oil & Gas Operator | Mar 2008 |
| 4 | Belnorth Petroleum Corporation | Midland, TX 79701 | Oil & Gas Operator | Feb 1991 |
| 5 | Bintliff Props. LTD. PRTNRSHP. | | Oil & Gas Operator | Dec 1987 |
| 6 | Bishop Petroleum Inc. | Houston, TX 77007 | Oil & Gas Operator | Apr 2024 |
| 7 | Brock Exploration Corporation | New Orleans, LA 70112-1707 | Oil & Gas Operator | Jan 1999 |
| 8 | Bsfi Western E & P, Inc. | | Oil & Gas Operator | Jun 2005 |
| 9 | Burlington Res Oil & Gas LP | | Oil & Gas Operator | Dec 2023 |
| 10 | Chevron Pipe Line Company | Houston, TX 77001 | Oil Operator | Feb 2015 |
| 11 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
| 12 | Commerce Energy, Inc. | | Oil & Gas Operator | Dec 1999 |
| 13 | Crosstex Lig, LLC | | Oil Operator | Mar 2014 |
| 14 | Cypress Gas Pipeline Company | | Oil Operator | Dec 1998 |
| 15 | Cypress Gas Pipeline, LLC | | Oil Operator | Sep 2019 |
| 16 | Cypress Production, Inc. | Azle, TX 76020 | Oil & Gas Operator | Apr 2024 |
| 17 | D. C. Bintliff | | Oil & Gas Operator | Mar 1987 |
| 18 | Dant Operating Company Inc. | | Oil & Gas Operator | Jan 1989 |
| 19 | Devon Energy Corp (Nevada) | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2017 |
| 20 | Devon Energy Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2009 |
| 21 | Dynaco, Incorporated | | Oil & Gas Operator | Dec 1980 |
| 22 | Eclipse Services, Inc. * | La Grange, TX 78945 | Oil & Gas Operator | Jul 2003 |
| 23 | Elsbury & McGrew | | Oil & Gas Operator | Nov 1986 |
| 24 | Enlink Lig, LLC | | Oil Operator | Jan 2024 |
| 25 | Exxon Corporation | Houston, TX 77210 | Oil & Gas Operator | Nov 2023 |
| 26 | Exxon Mobil Corporation | Spring, TX 77389 | Oil & Gas Operator | Apr 2024 |
| 27 | Field Petroleum Corp. | San Antonio, TX 78216 | Oil & Gas Operator | Apr 2024 |
| 28 | Flash Gas & Oil Northeast, Inc | | Oil & Gas Operator | May 2007 |
| 29 | Forman Petroleum Corporation | | Oil & Gas Operator | Aug 2001 |
| 30 | Frank C. VInson | | Oil & Gas Operator | May 1995 |
| 31 | Gas Producing Enterprises Inc. | | Oil & Gas Operator | Oct 1985 |
| 32 | Goldking Prod. Co. | Houston, TX 77002 | Oil & Gas Operator | Apr 1998 |
| 33 | Goldsberry Operating Co., Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Aug 2020 |
| 34 | Gulf Oil Corp. | Denver, CO 80201-0599 | Oil & Gas Operator | Dec 2014 |
| 35 | Gulf South Pipeline Company, LLC | | Oil & Gas Operator | Jan 2024 |
| 36 | Gulf South Pipeline Company, LP | Houston, TX 77001 | Oil & Gas Operator | Dec 2020 |
| 37 | Gulfport Energy Corporation | Oklahoma City, OK 73134-5003 | Oil & Gas Operator | Jan 2024 |
| 38 | Iberia Operating Corporation | | Oil & Gas Operator | Jan 2003 |
| 39 | Infinity Oil And Gas, L.L.C. | | Oil & Gas Operator | Dec 2023 |
| 40 | Intrepid Drilling, LLC | | Oil & Gas Operator | Nov 2023 |
| 41 | Jack L. Phillips | | Oil & Gas Operator | Aug 1994 |
| 42 | Joe W. Elsbury | | Oil & Gas Operator | Oct 1988 |
| 43 | Kash Oil And Gas, Inc | | Oil & Gas Operator | Oct 2020 |
| 44 | Kindee Oil & Gas Louisiana, LLC | | Oil & Gas Operator | Aug 2012 |
| 45 | Koch Gateway Pipeline Company | | Oil & Gas Operator | Feb 2001 |
| 46 | Kraker Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jan 1995 |
| 47 | La Intrastate Gas Co LLC | | Oil Operator | Apr 2004 |
| 48 | Ladd Petroleum Corp. | Denver, CO 80202 | Oil & Gas Operator | Oct 2004 |
| 49 | Latex Petroleum Corp. | Houston, TX 77090 | Oil & Gas Operator | Aug 2012 |
| 50 | LGS Exploration, Inc. | | Oil & Gas Operator | Jan 1991 |
| 51 | Liberty Oil And Gas Corp. | Olney, IL 62450-2489-2489 | Oil & Gas Operator | Dec 2021 |
| 52 | Louisiana Intrastate Gas Corp. | | Oil Operator | Feb 1994 |
| 53 | Louisiana Resources Co | | Oil Operator | May 1992 |
| 54 | Luca Operation, LLC | | Oil & Gas Operator | Feb 2016 |
| 55 | Magnum Producing & Operating Co. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Jan 2004 |
| 56 | McLain J. Forman | | Oil & Gas Operator | Mar 1988 |
| 57 | Mid-America Resources Corporation | | Oil Operator | Jan 2019 |
| 58 | Mid-America Resources, Inc. | | Oil & Gas Operator | Feb 2008 |
| 59 | Midstates Petroleum Company LLC | Tulsa, OK 74103 | Oil & Gas Operator | May 2018 |
| 60 | Midstates Petroleum Corp. | | Oil & Gas Operator | Dec 2008 |
| 61 | Mongrue, Roland, Inc | | Oil & Gas Operator | Mar 1979 |
| 62 | Monterey Pipeline Co. | | Oil Operator | Aug 1993 |
| 63 | Northridge Oil Company | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2024 |
| 64 | Novus Louisiana LLC | | Oil & Gas Operator | Mar 2006 |
| 65 | Oil Lift, Incorporated | Metairie, LA 70002 | Oil & Gas Operator | Apr 2020 |
| 66 | Oleum Operating Company, L.C. | Longview, TX 75606 | Oil & Gas Operator | Dec 2021 |
| 67 | Pacific Enterprises Oil Co USA | Dallas, TX 75201 | Oil & Gas Operator | Feb 2001 |
| 68 | Petro-Guard Company, Inc. | Houston, TX 77057 | Oil & Gas Operator | Nov 2014 |
| 69 | Plano Corp. | | Oil & Gas Operator | Mar 2005 |
| 70 | Quality Petroleum Corp. | | Oil & Gas Operator | Apr 1990 |
| 71 | Quest Exploration L.L.C. | | Oil & Gas Operator | Jul 2014 |
| 72 | Resource Securities Corp. | | Oil & Gas Operator | Mar 2005 |
| 73 | Reunion Resources, Inc. | | Oil & Gas Operator | Dec 2015 |
| 74 | Roberts & Bunch Resources | | Oil & Gas Operator | Dec 1993 |
| 75 | Rutherford Oil Corporation | Houston, TX 77046 | Oil & Gas Operator | Jun 2019 |
| 76 | Santa Fe Minerals, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Sep 2013 |
| 77 | Santa Fe-Andover Oil Co | Tulsa, OK 74172 | Oil & Gas Operator | Sep 2000 |
| 78 | Sante Fe Minerals | | Oil & Gas Operator | Dec 1987 |
| 79 | Signal Oil And Gas Company | Colleyville, TX 76034 | Oil & Gas Operator | Apr 2024 |
| 80 | Slam Resources, Inc. | | Oil & Gas Operator | Apr 1994 |
| 81 | Ssi Energy LLC | | Oil & Gas Operator | Jul 2021 |
| 82 | Superior Oil Co. | Denver, CO 80217-5444 | Oil & Gas Operator | Feb 2001 |
| 83 | Swampfox Oilfield Services, LLC | | Oil & Gas Operator | Dec 2023 |
| 84 | Sylvan Energy, LLC | Pittsburgh, PA 15211 | Oil & Gas Operator | Apr 2024 |
| 85 | Terra Resources, Inc. | Casper, WY 82601 | Oil & Gas Operator | Jun 1990 |
| 86 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
| 87 | Tucker Operating Co., Inc. | Victoria, TX 77903 | Oil & Gas Operator | Apr 2024 |
| 88 | Unit Petroleum Company | Tulsa, OK 74170 | Oil & Gas Operator | Apr 2024 |
| 89 | United Gas Pipe Line Co. | | Oil Operator | Aug 1993 |
| 90 | Vernon E. Faulconer, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Dec 2023 |
| 91 | Vintage Petroleum, Inc. | Houston, TX 77046 | Oil & Gas Operator | Dec 2023 |
| 92 | W. T. Waggoner Estate | | Oil & Gas Operator | Nov 1995 |
| 93 | Wagner Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2024 |
| 94 | WRT Energy Corporation | Oklahoma City, OK 73118 | Oil & Gas Operator | May 1998 |