1 | P & A Well Service | | Oil & Gas Operator | Jan 1994 |
2 | P & P Producing Inc | Midland, TX 79702 | Oil & Gas Operator | Feb 2015 |
3 | Pacific Enterprises Oil Co USA | Dallas, TX 75201 | Oil & Gas Operator | Feb 2001 |
4 | Pacific Enterprises Royalty Co | Oklahoma City, OK 73101 | Oil & Gas Operator | Feb 2002 |
5 | Pacific-Atlantic Oil Company, Inc. | | Oil & Gas Operator | Aug 2016 |
6 | Palace Operating Company | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2009 |
7 | Pan-Ok Production Company | | Oil & Gas Operator | Jul 2024 |
8 | Parker & Parsley Devpt L P | | Oil & Gas Operator | Oct 1997 |
9 | Partners Oil Company | Tulsa, OK 74135 | Oil & Gas Operator | Aug 1995 |
10 | Patrick Petroleum Corp. | | Oil & Gas Operator | Oct 1984 |
11 | Patterson Resources, Inc. | | Oil & Gas Operator | Apr 1984 |
12 | Paxton Oil Company | | Oil & Gas Operator | Jun 2024 |
13 | Peachtree Production Co. | | Oil & Gas Operator | Mar 1981 |
14 | Pecos Western Corporation | | Gas Operator | Feb 1992 |
15 | Pel-Tex Oil Company, Inc. | | Oil & Gas Operator | Jul 1995 |
16 | Pel-Tex, Inc. | | Oil & Gas Operator | Jul 1985 |
17 | Pelican Dome Exploration Inc | Harahan, LA 70123 | Oil & Gas Operator | Aug 2000 |
18 | Pend Oreille Oil & Gas Company | | Oil & Gas Operator | Sep 1989 |
19 | Pennzenergy Explor & Prod LLC | | Oil & Gas Operator | Dec 1999 |
20 | Pennzoil E & P Co - Clark Oil | | Oil & Gas Operator | Apr 1980 |
21 | Pennzoil Exploration & Production Co. | Carthage, TX 75633 | Oil & Gas Operator | Mar 2008 |
22 | Perdido Energy Louisiana, LLC | | Oil & Gas Operator | Jun 2024 |
23 | Perenco LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2005 |
24 | Petro-Lewis Corp. | | Oil & Gas Operator | Feb 1994 |
25 | Petrodome Operating, LLC | Houston, TX 77265 | Oil & Gas Operator | Jul 2024 |
26 | Petrogulf Corporation | Denver, CO 80202 | Oil & Gas Operator | Dec 2024 |
27 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
28 | Petroleum Properties MGMT Corp | | Oil & Gas Operator | Aug 1990 |
29 | Petroquest Energy, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | Feb 2001 |
30 | Petroquest Energy, L.L.C. | Lafayette, LA 70505 | Oil & Gas Operator | Dec 2024 |
31 | Petrus Oil Company., L.P. | | Oil & Gas Operator | Dec 1989 |
32 | Petsec Energy Inc. | | Oil & Gas Operator | Sep 2012 |
33 | Phalanx Petroleum LLC | | Oil & Gas Operator | Jul 2024 |
34 | Phillips Oil Company | Casper, WY 82602 | Oil & Gas Operator | Sep 1986 |
35 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
36 | Phoenix Exploration Company LP | | Oil & Gas Operator | Sep 2011 |
37 | Pioneer Natural Res. (GPC), Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 1998 |
38 | Pioneer Natural Resources USA Inc | Irving, TX 75039 | Oil & Gas Operator | Jul 2024 |
39 | Placid Oil Company | Houston, TX 77227 | Oil & Gas Operator | Mar 2008 |
40 | Plymouth Resource Group LLC | | Oil & Gas Operator | Dec 1999 |
41 | Plymouth Resources Group II Inc | | Oil & Gas Operator | May 2007 |
42 | Pogo Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jan 2008 |
43 | Pontchartrain Oil & Gas Corp 2 | | Oil & Gas Operator | Dec 1984 |
44 | Precio Energy, LLC | Beaumont, TX 77726 | Oil & Gas Operator | Dec 2024 |
45 | Presidio Energy, Inc. | | Oil & Gas Operator | Jan 1992 |
46 | Presidio Exploration, Inc. | Englewood, CO 80155 | Oil & Gas Operator | May 1999 |
47 | Prime Natural Resources, Inc. | Houston, TX 77042 | Oil & Gas Operator | Jun 2007 |
48 | Prize Operating Company | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2016 |
49 | Production Funds Inc | | Oil & Gas Operator | Nov 2001 |
50 | Prosper Energy Corporation | | Oil & Gas Operator | Oct 1988 |
51 | Proven Fuel Exploration, Inc. | | Oil & Gas Operator | Mar 2022 |
52 | PXP Gulf Coast Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
53 | PXP Louisiana L.L.C. | | Oil & Gas Operator | Nov 2010 |
54 | Pyro Energy Corp | Kingwood, TX 77339-2102 | Oil & Gas Operator | Mar 1998 |