| 1 | ABC Oil Co. | Wichita Falls, TX 76301 | Oil & Gas Operator | Oct 2023 |
| 2 | Aera Energy LLC | | Oil & Gas Operator | Aug 2025 |
| 3 | Alexander Oil Co. | Loco, OK 73442-9409 | Oil & Gas Operator | Sep 2025 |
| 4 | Angus Petroleum Corporation | Chicago, IL 60660 | Oil & Gas Operator | Dec 2022 |
| 5 | Ann Brindle | | Oil Operator | Jul 2025 |
| 6 | Armstrong Oil Inc. | | Oil & Gas Operator | Dec 2020 |
| 7 | Armstrong Petroleum Corporation | | Oil & Gas Operator | Jul 2025 |
| 8 | Arrowhead Operating Inc. | Argyle, TX 76226 | Oil & Gas Operator | Oct 2025 |
| 9 | Bali Oil Co. | | Oil & Gas Operator | Dec 2003 |
| 10 | Barto Oil Co. | | Oil & Gas Operator | Dec 1992 |
| 11 | Beach Supply Co. | | Oil Operator | Dec 1987 |
| 12 | Blackhawk Oil Co | Ottawa, KS 66067 | Oil & Gas Operator | Jan 2011 |
| 13 | Bobbie G. & Vallee J. Williams | | Oil & Gas Operator | Dec 1991 |
| 14 | Bradley Muhl And Associates | | Oil & Gas Operator | Dec 1993 |
| 15 | Brea Canon Oil Co. | | Oil & Gas Operator | Aug 2025 |
| 16 | Breitburn Operating LP | Houston, TX 77002 | Oil & Gas Operator | Oct 2025 |
| 17 | Bridge Energy LLC | | Oil & Gas Operator | Aug 2025 |
| 18 | Bridgeland Resources LLC | | Oil & Gas Operator | Jul 2025 |
| 19 | Bridgemark Corporation | | Oil & Gas Operator | Jul 2025 |
| 20 | Brindle/Thomas | | Oil & Gas Operator | Dec 2023 |
| 21 | California Resources Production Corporation | | Oil & Gas Operator | Jul 2025 |
| 22 | Calnrg Operating LLC | | Oil & Gas Operator | Aug 2025 |
| 23 | Calresources LLC | | Oil & Gas Operator | Dec 1996 |
| 24 | Cather Rogers Barnes & Cree | | Oil & Gas Operator | Dec 2009 |
| 25 | Cather, Barnes & Cree | | Oil & Gas Operator | Dec 2009 |
| 26 | Central Park Energy | | Oil & Gas Operator | Dec 1991 |
| 27 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Oct 2025 |
| 28 | City Of Huntington Beach (Fire Dept.) | | Oil & Gas Operator | Aug 2025 |
| 29 | City Of Newport Beach | | Oil & Gas Operator | Aug 2025 |
| 30 | City Oil Corp. Oper. For | | Oil & Gas Operator | Dec 1989 |
| 31 | Clint H. Woodington | | Oil Operator | Dec 1994 |
| 32 | Columbine Associates | | Oil & Gas Operator | Aug 2025 |
| 33 | Cooper & Brain Inc. | | Oil & Gas Operator | Aug 2025 |
| 34 | Corona Development Co. Inc. | | Oil Operator | Dec 1989 |
| 35 | Coyote Oil LLC | | Oil Operator | Jan 2018 |
| 36 | D. W. Elliott Operating Acct | | Oil & Gas Operator | Dec 1991 |
| 37 | Davis Davis & Davis | | Oil & Gas Operator | Dec 1988 |
| 38 | DBF Partners | | Oil Operator | Dec 1986 |
| 39 | DLM Ventures | | Oil & Gas Operator | Dec 2004 |
| 40 | DLM Ventures LLC | | Oil & Gas Operator | Dec 2004 |
| 41 | Douglas Whitney | | Oil Operator | Dec 2004 |
| 42 | E & B Natural Resources Management Corporation | Hays, KS 67601 | Oil & Gas Operator | Aug 2025 |
| 43 | E & S Production Corp. | | Oil & Gas Operator | Dec 1988 |
| 44 | E-Z Serve Of Ca Inc. | | Oil Operator | Dec 1989 |
| 45 | Earth Basics Contracting Corp. | | Oil & Gas Operator | Dec 2001 |
| 46 | Emil W. Plegel | | Oil & Gas Operator | Jul 2025 |
| 47 | Energy Development Of California Inc. | | Oil & Gas Operator | Dec 2004 |
| 48 | Estate Of George Cantor | | Oil Operator | Dec 1988 |
| 49 | Evangelical Free Church | | Oil & Gas Operator | Dec 1987 |
| 50 | Floyd & Alene Jenner | | Oil & Gas Operator | Dec 2003 |
| 51 | Forster Oil Co. | | Oil & Gas Operator | Dec 2016 |
| 52 | Freeport-McMoran Oil & Gas LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2025 |
| 53 | George A. Jones | | Oil & Gas Operator | Jan 2018 |
| 54 | George E. Wise | | Oil Operator | Dec 1989 |
| 55 | Gergen Homes Inc. | | Oil & Gas Operator | Dec 2006 |
| 56 | Goldenwest Partners LLC | | Oil & Gas Operator | Dec 1998 |
| 57 | Gustafson Brothers Inc. | | Oil & Gas Operator | Dec 2002 |
| 58 | H & O Oil Co. | | Oil & Gas Operator | Dec 1989 |
| 59 | Hathaway Company | | Oil & Gas Operator | Jul 2025 |
| 60 | Hellman Properties LLC | | Oil & Gas Operator | Aug 2025 |
| 61 | Herley Olive Holdings LLC | | Oil & Gas Operator | Aug 2025 |
| 62 | Hoag Memorial Hospital Presbyterian | | Gas Operator | Aug 2025 |
| 63 | Huntington Beach Company | | Oil & Gas Operator | Dec 1998 |
| 64 | Huntington Beach Pacific Coast Enterprises LLC | | Oil & Gas Operator | Jan 2018 |
| 65 | Huntington Signal Oil Company | | Oil & Gas Operator | Dec 1997 |
| 66 | Hvi Cat Canyon Inc. | | Oil & Gas Operator | Jul 2025 |
| 67 | J And J Operators LLC | | Oil & Gas Operator | Aug 2025 |
| 68 | J. I. Hathaway Opr. | | Oil & Gas Operator | Dec 1988 |
| 69 | J. M. Peters Co. Inc. | | Oil & Gas Operator | Dec 1990 |
| 70 | Jacat Oil Co. | | Oil Operator | Dec 1990 |
| 71 | Jeanne E. Nevins | | Oil Operator | Dec 2000 |
| 72 | John A. Thomas | | Oil & Gas Operator | Jul 2025 |
| 73 | John A. Thomas & Linda Thomas | | Oil Operator | Jul 2025 |
| 74 | John M. & W. F. Rohrig | | Oil Operator | Dec 1986 |
| 75 | K & J Oil Co. Inc. | | Oil & Gas Operator | Jul 2025 |
| 76 | K. J. Enterprises LLC | | Oil Operator | Dec 2001 |
| 77 | Kernview Oil Co. | | Oil & Gas Operator | Dec 2003 |
| 78 | Kraemer II LLC | | Oil & Gas Operator | Dec 2000 |
| 79 | Larry E. Bedrosian | | Oil Operator | Dec 1999 |
| 80 | Les Miller | | Oil & Gas Operator | Dec 1991 |
| 81 | Linn Western Operating Inc. | | Oil & Gas Operator | Jan 2018 |
| 82 | Lone Eagle LLC | | Oil & Gas Operator | Dec 2003 |
| 83 | Mauro J. Dentino | | Oil Operator | Jul 2025 |
| 84 | Meritage Homes Of California Inc. | | Oil Operator | Dec 2020 |
| 85 | Mobil Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Jun 2016 |
| 86 | Mobil Oil Exploration & Production North America Inc. | | Oil & Gas Operator | Dec 1996 |
| 87 | Monterey Resources Inc. | | Oil & Gas Operator | Dec 1997 |
| 88 | Mutz Oil Operator | | Oil Operator | Dec 1988 |
| 89 | New-Lonamen | | Oil & Gas Operator | Dec 2008 |
| 90 | O'Donnell Oil LLC | | Oil & Gas Operator | Jul 2025 |
| 91 | Oil Well Management Co. | | Oil & Gas Operator | Dec 1989 |
| 92 | Oxy USA Inc | Houston, TX 77046 | Oil & Gas Operator | Oct 2025 |
| 93 | Pacific Coast Energy Company LP | | Oil & Gas Operator | Aug 2025 |
| 94 | Pacific Energy Resources LTD | | Oil & Gas Operator | Sep 2009 |
| 95 | Petro-Lewis Corp. | | Oil & Gas Operator | Feb 1994 |
| 96 | Petroprize | | Oil & Gas Operator | Aug 2025 |
| 97 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 98 | Pier Oil Company Inc. | | Oil Operator | Jul 2025 |
| 99 | Plegel Oil Company Inc. | | Oil & Gas Operator | Aug 2025 |
| 100 | Polaris Production Inc. | | Oil & Gas Operator | Feb 2021 |