| 21801 | Parlay Oil Company | | Oil Operator | Dec 2002 |
| 21802 | Parmelee, Terrence G. E., Jr. | Chagrin Falls, OH 44023 | Gas Operator | Dec 2024 |
| 21803 | Parmer, I. A. | Abilene, TX 79606 | Oil & Gas Operator | Oct 1993 |
| 21804 | Parnell Operating | Kamay, TX 76369 | Oil & Gas Operator | Jul 2025 |
| 21805 | Parnes Oil Company | | Oil Operator | Jul 1994 |
| 21806 | Paroco DRLG Funds Inc | Houston, TX 77002 | Oil & Gas Operator | Dec 1993 |
| 21807 | Parrish Corporat | | Oil & Gas Operator | Oct 1994 |
| 21808 | Parrish Corporation | Wichita, KS 67202 | Oil & Gas Operator | Jan 2025 |
| 21809 | Parrish Jr W F | Ardmore, OK 73401-2941 | Oil & Gas Operator | Feb 2025 |
| 21810 | Parrish, H Dwane & Rhonda K | Artesia, NM 88210 | Oil & Gas Operator | Apr 2022 |
| 21811 | Parrot Energy Company | Cortland, OH 44410 | Oil & Gas Operator | Dec 2024 |
| 21812 | Parsage Oil Company, L.L.C. | | Oil & Gas Operator | Apr 2025 |
| 21813 | Parsell, R. W. | Whitlash, MT 59545 | Oil & Gas Operator | Apr 2025 |
| 21814 | Parsell, RF Partnership | Bellevue, WA 98004 | Oil Operator | Apr 2025 |
| 21815 | Parsley Energy Operations, LLC | Irving, TX 75038 | Oil & Gas Operator | Jan 2021 |
| 21816 | Parsley, Amos | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2008 |
| 21817 | Parsons Engineering Corporation | Tulsa, OK 74137-7505 | Oil & Gas Operator | Oct 2017 |
| 21818 | Partech Investments LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2025 |
| 21819 | Partee Drilling Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Jul 2025 |
| 21820 | Parten Oil Co. | Houston, TX 77060 | Oil & Gas Operator | Jan 1994 |
| 21821 | Parten Operating Inc. | Houston, TX 77069 | Oil & Gas Operator | Jul 2025 |
| 21822 | Parten, Kenneth N. | St John, KS 67576 | Oil & Gas Operator | May 2009 |
| 21823 | Partin, Charles | Atascosa, TX 78002 | Oil & Gas Operator | Aug 2005 |
| 21824 | Partners In Crude, Inc. | Ponca City, OK 74602 | Oil & Gas Operator | Dec 1997 |
| 21825 | Partners Oil Company | Tulsa, OK 74135 | Oil & Gas Operator | Aug 1995 |
| 21826 | Partners Petrole | | Oil Operator | Oct 1992 |
| 21827 | Partners Petroleum Inc | Independence, OH 44131 | Oil & Gas Operator | Dec 1988 |
| 21828 | Partners Production, Inc. | Caldwell, TX 77836 | Oil & Gas Operator | Jul 2025 |
| 21829 | Partyka, Joseph | Forestville, NY 14062 | Gas Operator | Dec 2024 |
| 21830 | Parwest Land Exploration, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Apr 2025 |
| 21831 | Pasadena Oil And Gas Corp | | Oil & Gas Operator | Dec 2001 |
| 21832 | Paschal Petroleum, Inc. | Dallas, TX 75380 | Oil & Gas Operator | Apr 1994 |
| 21833 | Paschal, Phil A. | Kilgore, TX 75662 | Oil Operator | Aug 2021 |
| 21834 | Paschal, Shannon | Kilgore, TX 75663 | Oil Operator | Jul 2025 |
| 21835 | Pasco Oil Company | Oklahoma City, OK 73172-0454 | Oil & Gas Operator | Aug 2000 |
| 21836 | Pash Energy, Inc. | Borger, TX 79008 | Oil & Gas Operator | Jul 2025 |
| 21837 | Pasnik, Joshua | Orchard Park, NY 14127 | Gas Operator | Dec 2024 |
| 21838 | Pasnik, Matthew J., Pasnik, Linda H. | Eden, NY 14057 | Gas Operator | Dec 2024 |
| 21839 | Passmore Robert W | Ada, OK 74820-5501 | Oil & Gas Operator | May 2022 |
| 21840 | Passmore, Mike F. | Monahans, TX 79756 | Oil & Gas Operator | Jul 2025 |
| 21841 | Pasture Production Company | Bryan, TX 77808 | Oil & Gas Operator | Apr 2005 |
| 21842 | Patalon Robert E | Erie, PA 16505-0444 | Gas Operator | Dec 2024 |
| 21843 | Patara Andover I LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2014 |
| 21844 | Patara Oil & Gas LLC | Dallas, TX 75219 | Oil & Gas Operator | Mar 2018 |
| 21845 | Patchwork Oil & Gas LLC | Davisville, WV 26142 | Oil & Gas Operator | Dec 2021 |
| 21846 | Patco Investments Inc | Seminole, OK 74868 | Oil Operator | Nov 2007 |
| 21847 | Pate, L. T. | Austin, TX 78701 | Oil & Gas Operator | Aug 1994 |
| 21848 | Pate-Dombaugh Pe | | Oil Operator | Sep 1991 |
| 21849 | Pathex Petroleum, Inc | | Gas Operator | Dec 2013 |
| 21850 | Pathfinder Capital L.C. | Dallas, TX 75219 | Oil Operator | Mar 2008 |
| 21851 | Pathfinder Energy Inc | Casper, WY 82605 | Oil & Gas Operator | May 2024 |
| 21852 | Pathfinder Exploration LLC | Norman, OK 73069-8516 | Gas Operator | Aug 2003 |
| 21853 | Pathway Resources LLC | | Oil Operator | Jun 2025 |
| 21854 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
| 21855 | Patina Oklahoma Corp | Duncan, OK 73533-9523 | Oil & Gas Operator | Nov 2014 |
| 21856 | Patina San Juan Incorporated | Farmington, NM 87402 | Oil & Gas Operator | Dec 2007 |
| 21857 | Patkim Production Inc. | | Oil Operator | Jan 2025 |
| 21858 | Patno Oil & Gas Company | Zapata, TX 78076 | Oil & Gas Operator | Jul 2025 |
| 21859 | Patoil Corp. | San Antonio, TX 78205 | Oil & Gas Operator | Aug 2003 |
| 21860 | Patricia Oil Company | Tuleta, TX 78162 | Oil Operator | Sep 2008 |
| 21861 | Patrick & Hadley | Nocona, TX 76255 | Oil & Gas Operator | Jul 1999 |
| 21862 | Patrick & Vaughn | Oklahoma City, OK 73154 | Oil & Gas Operator | Sep 2005 |
| 21863 | Patrick Development Corporation | Leawood, KS 66206 | Oil Operator | Mar 2025 |
| 21864 | Patrick Exploration Company | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2011 |
| 21865 | Patrick Pet. Corp. Of Michigan | Houston, TX 77227 | Oil & Gas Operator | Aug 1995 |
| 21866 | Patrick Petroleum Co. | Jackson, MI 49201 | Oil & Gas Operator | Nov 1993 |
| 21867 | Patrick Petroleum Corp Of Michigan | | Oil & Gas Operator | Nov 1993 |
| 21868 | Patrick Petroleum Corp. | | Oil & Gas Operator | Oct 1984 |
| 21869 | Patrick Production Company | Houston, TX 77266 | Oil & Gas Operator | Jul 2025 |
| 21870 | Patrick R J & Jack H Vaughn | Oklahoma City, OK 73154 | Oil & Gas Operator | Feb 2002 |
| 21871 | Patrick R J Oper | | Oil & Gas Operator | Jan 1995 |
| 21872 | Patrick RJ Operating Co | Liberal, KS 67905-1157 | Oil & Gas Operator | Nov 2014 |
| 21873 | Patrick Shipley | Indiana, PA 15701-6501 | Oil & Gas Operator | Dec 2016 |
| 21874 | Patrick, G.R. | Nocona, TX 76255 | Oil Operator | Jul 2025 |
| 21875 | Patrick, George & Patrick, Roger | Nocona, TX 76255 | Oil & Gas Operator | Jul 1999 |
| 21876 | Patrick, Joe Ben | Petrolia, TX 76377 | Oil & Gas Operator | Oct 2009 |
| 21877 | Patriot E & P Company | Tyler, TX 75710 | Oil & Gas Operator | Aug 2004 |
| 21878 | Patriot Energy Resources LLC | Golden, CO 80401 | Gas Operator | Aug 2014 |
| 21879 | Patriot Exploration Corp | Stahlstown, PA 15687-1301 | Oil & Gas Operator | Dec 2024 |
| 21880 | Patriot Operating Company, Inc. | Houston, TX 77008 | Oil & Gas Operator | Sep 2003 |
| 21881 | Patriot Petroleum Co LLC | Coppell, TX 75019-4216 | Oil & Gas Operator | Jan 2013 |
| 21882 | Patriot Production LLC | Southlake, TX 76092 | Oil & Gas Operator | Apr 2023 |
| 21883 | Patriot Resources LLC | | Oil & Gas Operator | May 2025 |
| 21884 | Patriot Resources, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2017 |
| 21885 | Patriot Services, Inc. | Westbrook, TX 79565 | Oil & Gas Operator | Mar 2008 |
| 21886 | Patron Energy LLC | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2015 |
| 21887 | Pats Rent All | | Oil Operator | Jul 2002 |
| 21888 | Patterson & Patterson Oil Co | Cushing, OK 74023 | Oil Operator | Aug 1995 |
| 21889 | Patterson Bobby Ray | Haskell, OK 74436-8809 | Oil & Gas Operator | Apr 2020 |
| 21890 | Patterson Eddy L | Tulsa, OK 74133 | Oil & Gas Operator | Feb 2022 |
| 21891 | Patterson Energy Corporation | Dallas, TX 75205 | Oil & Gas Operator | Jul 2025 |
| 21892 | Patterson Energy LLC | Hays, KS 67601 | Oil Operator | Mar 2025 |
| 21893 | Patterson George E | Ada, OK 74820-1108 | Oil & Gas Operator | Jul 2016 |
| 21894 | Patterson Jerry | | Oil Operator | Jan 1995 |
| 21895 | Patterson John H | Shawnee, OK 74801 | Oil Operator | Dec 2006 |
| 21896 | Patterson Oil Company, The | Eastland, TX 76448 | Oil & Gas Operator | Apr 2025 |
| 21897 | Patterson Operating & Pumping Inc Dba/Penergy | Midland, TX 79710 | Oil & Gas Operator | Jul 2018 |
| 21898 | Patterson Operations LLC | Wichita, KS 67228 | Oil Operator | Mar 2025 |
| 21899 | Patterson Petroleum LLC | Snyder, TX 79550 | Oil & Gas Operator | Oct 2007 |
| 21900 | Patterson Petroleum LP | Snyder, TX 79550 | Oil & Gas Operator | Mar 2008 |