| 1 | 25 Hill Properties Inc. | West Hills, CA 91307 | Oil Operator | Mar 2020 |
| 2 | 260 Resource Management LLC | Lawndale, CA 90260 | Gas Operator | Mar 2020 |
| 3 | 3MB Oil & Gas LLC | Irvine, CA 92603-3813 | Oil & Gas Operator | Mar 2020 |
| 4 | 4H Oil Co. | | Oil Operator | Dec 1992 |
| 5 | A. J. Hayes | | Oil & Gas Operator | Dec 1998 |
| 6 | A. L. & V. I. Grayson | | Oil Operator | Dec 1993 |
| 7 | A. S. Johnston Drilling Corp. | | Oil & Gas Operator | Dec 1987 |
| 8 | A.L.S. Resources Inc. | | Oil Operator | Dec 2004 |
| 9 | Aa Production Services Inc. | Woodland, CA 95695 | Gas Operator | Mar 2020 |
| 10 | Aalpha Energy Inc. | Lancaster, CA 93536 | Oil & Gas Operator | Mar 2020 |
| 11 | Aba Energy Corporation | Sacramento, CA 95864 | Oil & Gas Operator | Mar 2020 |
| 12 | ABC Oil Company Inc | Wichita Falls, TX 76307-1469 | Oil & Gas Operator | Feb 2020 |
| 13 | Abe Giesbrecht | | Gas Operator | Dec 1983 |
| 14 | Adco LTD. | | Oil & Gas Operator | Dec 1983 |
| 15 | Aera Energy LLC | Bakersfield, CA 93311-1301 | Oil & Gas Operator | Mar 2020 |
| 16 | Agey Petroleum Company | | Oil & Gas Operator | Dec 1998 |
| 17 | Alanmar Energy | Camarillo, CA 93010 | Gas Operator | Jan 2018 |
| 18 | Alexander Oil Company | Bakersfield, CA 93314-8881 | Oil Operator | Mar 2020 |
| 19 | Allenco Energy Inc. | Signal Hill, CA 90755-3517 | Oil & Gas Operator | Mar 2020 |
| 20 | Allied Energy Corporation | | Oil & Gas Operator | Mar 2020 |
| 21 | Allied Western Petroleum | Tiburon, CA 94920 | Oil & Gas Operator | Mar 2020 |
| 22 | Alon Bakersfield Property Inc. | Bakersfield, CA 93308 | Oil & Gas Operator | Mar 2020 |
| 23 | Amerada Hess Corp. Operator | | Gas Operator | Dec 1985 |
| 24 | Amerada Hess Corp. Unit Operator | | Oil & Gas Operator | Dec 1986 |
| 25 | Amerada Hess Corporation | Houston, TX 77252 | Oil & Gas Operator | Feb 2016 |
| 26 | American Barter Petroleum Inc. | | Oil & Gas Operator | Jun 1993 |
| 27 | Ample Resources Inc. | Los Angeles, CA 90067 | Oil & Gas Operator | Mar 2020 |
| 28 | Amrich Energy Inc. | Santa Maria, CA 93455-1833 | Oil & Gas Operator | Mar 2020 |
| 29 | Anacapa Oil Corporation | Sutter, CA 95982 | Gas Operator | Mar 2020 |
| 30 | Anadime Energy Services Inc. | | Oil & Gas Operator | Dec 2009 |
| 31 | Ancora-Verde Corporation | | Oil & Gas Operator | Dec 2004 |
| 32 | Andrew L. Newkirk | Taft, CA 93268 | Oil Operator | Mar 2020 |
| 33 | Angus Petroleum Corporation | Bakersfield, CA 93308 | Oil & Gas Operator | Mar 2020 |
| 34 | Ann Marie Tiers | | Oil Operator | Dec 1996 |
| 35 | Anschutz Exploration Corporation | Denver, CO 80202 | Oil & Gas Operator | Dec 2020 |
| 36 | Anterra Energy Services Inc. | Santa Paula, CA 93060-9134 | Oil & Gas Operator | Mar 2020 |
| 37 | Anterra Services Inc. | Santa Paula, CA 93060-9134 | Oil & Gas Operator | Mar 2020 |
| 38 | Apache Corporation | Houston, TX 77056 | Oil & Gas Operator | Jun 2020 |
| 39 | Apc Operating Partnership | Denver, CO 802034520 | Oil & Gas Operator | Oct 1996 |
| 40 | Arcady Oil Company | | Gas Operator | Dec 1989 |
| 41 | Archer Operations California LLC | Bakersfield, CA 93301-3046 | Gas Operator | Mar 2020 |
| 42 | Arco Oil & Gas Company | Midland, TX 79702 | Oil & Gas Operator | Mar 2006 |
| 43 | Arco Western Energy Co. | | Oil & Gas Operator | Dec 1999 |
| 44 | Argo Petroleum Corp. | | Oil & Gas Operator | Dec 1989 |
| 45 | Argosy Oil Company | | Gas Operator | Dec 1999 |
| 46 | Aristata Exploration Co. | | Gas Operator | Dec 2009 |
| 47 | Arkoma Production Company Of California | | Oil & Gas Operator | Dec 1993 |
| 48 | Armstrong Oil Inc. | Newport Beach, CA 92663 | Oil & Gas Operator | Feb 2020 |
| 49 | Armstrong Petroleum Corporation | Newport Beach, CA 92659-0547 | Oil & Gas Operator | Mar 2020 |
| 50 | Arthur J. Arding Jr. | | Gas Operator | Dec 1995 |
| 51 | Arthur McAdams | Bakersfield, CA 93380-2046 | Oil & Gas Operator | Mar 2020 |
| 52 | Ashe Road Properties L.P. | | Oil & Gas Operator | Dec 2009 |
| 53 | Asioco Inc. | Los Angeles, CA 90064-4140 | Oil & Gas Operator | Dec 2018 |
| 54 | Aspen Exploration Corporation | | Oil & Gas Operator | Dec 2007 |
| 55 | Astarta Alexander Oil Co. | Ventura, CA 93004 | Oil & Gas Operator | Mar 2020 |
| 56 | Atasca Resources, Inc. | Houston, TX 77219 | Oil & Gas Operator | Jun 2020 |
| 57 | Atlantic Oil Company | Glendale, CA 91205 | Oil & Gas Operator | Mar 2020 |
| 58 | Atlantic Richfield Company | Plano, TX 75094-1744 | Oil & Gas Operator | Nov 2016 |
| 59 | Austin Oil Company | | Oil & Gas Operator | Dec 2000 |
| 60 | Axis Petroleum Co. | Signal Hill, CA 90755 | Oil & Gas Operator | Mar 2020 |
| 61 | B & L Pump & Supply Company | Bakersfield, CA 93308 | Oil & Gas Operator | Mar 2020 |
| 62 | B & S Oil Company | Cement, OK 73017-9506 | Oil & Gas Operator | Jan 2020 |
| 63 | B. D. & D. Co. | | Gas Operator | Dec 1992 |
| 64 | B. E. Conway Energy Inc. | Orcutt, CA 93457-2050 | Oil & Gas Operator | Mar 2020 |
| 65 | Badger Oil Corporation | Lafayette, LA 70505 | Oil & Gas Operator | Jul 2014 |
| 66 | Baker Oil And Gas Company | | Gas Operator | Dec 1997 |
| 67 | Baker-Dickey Partnership | | Oil Operator | Dec 1992 |
| 68 | Bakersfield Energy Resources Inc. | | Oil & Gas Operator | Dec 1998 |
| 69 | Bali Oil Co. | | Oil & Gas Operator | Dec 2003 |
| 70 | Ballard Oil Inc. | Bakersfield, CA 93380-2513 | Oil & Gas Operator | Mar 2020 |
| 71 | Barco Oil Co. | | Oil Operator | Dec 2009 |
| 72 | Barham-Boyne Oil Co. Inc. | | Oil Operator | Dec 1992 |
| 73 | Barto Oil Co. | | Oil & Gas Operator | Dec 1992 |
| 74 | Bayshore-Long Beach LLC | | Oil & Gas Operator | Dec 2000 |
| 75 | Bayswater Exploration & Production, LLC | Clovis, CA 93612-1058 | Oil & Gas Operator | Mar 2020 |
| 76 | Beach Supply Co. | | Oil Operator | Dec 1987 |
| 77 | Beacon Oil Company | | Oil Operator | Dec 1985 |
| 78 | Bechtel Petroleum Operations Inc. | | Oil & Gas Operator | Dec 1997 |
| 79 | Bellaire Oil Co | Bakersfield, CA 93308 | Oil & Gas Operator | Mar 2020 |
| 80 | Bellevue Resources Inc. | | Oil & Gas Operator | Dec 1999 |
| 81 | Belridge Energy Resources Inc. | Bakersfield, CA 93305 | Oil & Gas Operator | Mar 2020 |
| 82 | Bennett Petroleum Inc. | Bakersfield, CA 93311 | Oil & Gas Operator | Mar 2020 |
| 83 | Bentley Family Limited Partnership | Ventura, CA 93003-6549 | Oil & Gas Operator | Mar 2020 |
| 84 | Benton Oil & Gas | | Gas Operator | Dec 1992 |
| 85 | Bercon Inc. | | Gas Operator | Dec 1995 |
| 86 | Berenergy Corporation | Denver, CO 80203 | Oil & Gas Operator | Dec 2020 |
| 87 | Berkley Petroleum Inc. | | Oil & Gas Operator | Dec 2007 |
| 88 | Berry Petroleum Company | Denver, CO 80202 | Oil & Gas Operator | Feb 2014 |
| 89 | Berry Petroleum Company LLC | Bakersfield, CA 93309-0422 | Oil & Gas Operator | Mar 2020 |
| 90 | Beverly Hills Oil Co. | | Oil & Gas Operator | Dec 1979 |
| 91 | Big Horn Oil And Gas Inc. | | Gas Operator | Mar 2020 |
| 92 | Big Valley Resources | | Oil Operator | Dec 2008 |
| 93 | Big West Of California LLC | Bakersfield, CA 93308 | Oil & Gas Operator | Dec 2018 |
| 94 | Binion Exploration & Development | Bakersfield, CA 93314 | Oil Operator | Mar 2020 |
| 95 | Black Gold Oil Co Inc | Bakersfield, CA 93308 | Oil & Gas Operator | Mar 2020 |
| 96 | Black Mountain Oil Co. | | Oil & Gas Operator | Dec 1999 |
| 97 | Black Velvet Petro. Co. | | Oil & Gas Operator | Dec 2007 |
| 98 | Blackhawk Oil Company | Ottawa, KS 66067 | Oil & Gas Operator | Nov 2007 |
| 99 | Blackstone Oil & Gas LLC | Aquenga, CA 92536 | Oil & Gas Operator | Mar 2020 |
| 100 | Bloomfield Partners II LLC | | Oil & Gas Operator | Dec 2005 |