1 | P & M Petroleum Management LLC | Denver, CO 80202 | Oil & Gas Operator | Oct 2021 |
2 | P & P Producing Inc | Midland, TX 79702 | Oil & Gas Operator | Feb 2015 |
3 | P.O.&G. Operating, LLC | Houston, TX 77057 | Oil & Gas Operator | Dec 2024 |
4 | Pacific Enterprises Oil Co USA | Dallas, TX 75201 | Oil & Gas Operator | Feb 2001 |
5 | Pacific Transmission Supply | | Oil & Gas Operator | Dec 1987 |
6 | Pajaro Energy LLC | Santa Fe, NM 87501 | Oil & Gas Operator | Jan 2024 |
7 | Pal LLC | Gillette, WY 82718 | Oil Operator | Dec 2019 |
8 | Paladin Energy Partner LLC | Denver, CO 80201 | Oil & Gas Operator | Aug 2006 |
9 | Palo Petroleum, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Dec 2024 |
10 | Pancanadian Petroleum Company | | Oil & Gas Operator | Oct 1989 |
11 | Panther Energy Company III LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jul 2020 |
12 | Paoli Investors LTD | | Oil & Gas Operator | Aug 1985 |
13 | Par Oil Company Inc | Denver, CO 80201 | Oil & Gas Operator | Jun 2003 |
14 | Park Oil Properties LLC | Plano, TX 75025 | Oil Operator | Oct 2019 |
15 | Park Robert E | | Oil Operator | May 1983 |
16 | Parker & Parsley Producing LP | Midland, TX 79702 | Oil & Gas Operator | Oct 1997 |
17 | Pathfinder Energy Inc | Casper, WY 82605 | Oil & Gas Operator | May 2024 |
18 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
19 | Patrick Petroleum Co. | Jackson, MI 49201 | Oil & Gas Operator | Nov 1993 |
20 | Patriot Energy Resources LLC | Golden, CO 80401 | Gas Operator | Aug 2014 |
21 | Patriot Production LLC | Southlake, TX 76092 | Oil & Gas Operator | Apr 2023 |
22 | PDS Resources LLC | | Oil & Gas Operator | Sep 2024 |
23 | Peabody Natural Gas LLC | Gillette, WY 82718 | Oil & Gas Operator | Sep 2024 |
24 | Peak Powder River Resources LLC | Durango, CO 81301 | Oil & Gas Operator | Sep 2024 |
25 | Peakview Oil Company LLC | Denver, CO 80202 | Gas Operator | Sep 2024 |
26 | Pearce Leonard | Manderson, WY 82432 | Oil Operator | Dec 1999 |
27 | Pearce Mary | | Oil Operator | Dec 1999 |
28 | Pearce Oil Company | Manderson, WY 82432 | Oil Operator | Jun 1999 |
29 | Pease Oil & Gas Company | Grand Junction, CO 81506 | Oil & Gas Operator | May 2000 |
30 | Pecos Development Corporation | San Antonio, TX 78209 | Oil Operator | Aug 1988 |
31 | Pedco Resources Company | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2008 |
32 | Pedry J J | | Oil Operator | Sep 1989 |
33 | Pelican Dome Exploration | Harahan, LA 70123 | Oil & Gas Operator | Jun 1997 |
34 | Pendragon Energy Partners Inc | Midland, TX 79701 | Oil & Gas Operator | Nov 2009 |
35 | Pennaco Energy Incorporated | Gillette, WY 82718 | Oil & Gas Operator | Feb 2021 |
36 | Penneco Exploration Company Of Wyo LLC | Delmont, PA 15626 | Oil Operator | Aug 2021 |
37 | Pennzoil Company | Midland, TX 79710-0090 | Oil & Gas Operator | Mar 2000 |
38 | Petcon Associates LTD | Denver, CO 80202 | Oil & Gas Operator | Sep 2018 |
39 | Peters Walter J | | Oil & Gas Operator | Jul 1991 |
40 | Peterson Energy Management Inc | | Oil Operator | Aug 2010 |
41 | Peterson Energy Operating Inc | Loveland, CO 80537 | Oil & Gas Operator | Oct 2024 |
42 | Petra Petroleum Inc | Littleton, CO 80160-0319 | Oil & Gas Operator | Jun 2005 |
43 | Petral Exploration Inc LLC | Denver, CO 80217 | Oil & Gas Operator | May 2007 |
44 | Petro Energy Inc | Farmington, NM 87499 | Oil & Gas Operator | Aug 2024 |
45 | Petro Search Exploration Corp | | Oil & Gas Operator | May 1993 |
46 | Petro-Canada Resources (USA) Inc | Denver, CO 80202-472 | Oil & Gas Operator | Feb 2010 |
47 | Petro-Hunt Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 2003 |
48 | Petro-Hunt, L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | Dec 2024 |
49 | Petro-Lewis Corp. | | Oil & Gas Operator | Feb 1994 |
50 | Petrocarbon Energy Corporation | | Oil Operator | Sep 1996 |
51 | Petrocarbon Energy Trust | | Oil Operator | Sep 1996 |
52 | Petrocorp Incorporated | Tulsa, OK 74170 | Oil & Gas Operator | Nov 2021 |
53 | Petrogulf Corporation | Denver, CO 80202 | Oil & Gas Operator | Dec 2024 |
54 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
55 | Petrolero Corp. | San Antonio, TX 78205 | Oil & Gas Operator | Feb 1998 |
56 | Petroleum Corp Of Delaware The | | Oil & Gas Operator | May 1991 |
57 | Petroleum Inc | Wichita, KS 67202 | Oil & Gas Operator | Oct 2021 |
58 | Petroleum Management LLC | Platteville, CO 80651 | Oil & Gas Operator | May 2011 |
59 | Petroleum Products Inc | | Oil Operator | Jun 1996 |
60 | Petroleum Resource Management Corp | Denver, CO 80203 | Oil & Gas Operator | Oct 2024 |
61 | Petrorep Inc | | Oil Operator | Oct 1998 |
62 | Petrox Resources Inc | Meeker, CO 81641 | Oil & Gas Operator | Oct 2024 |
63 | PGC LLC | Newcastle, WY 92701 | Oil Operator | Oct 2023 |
64 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
65 | Phoenix Operating LLC | | Oil & Gas Operator | Oct 2024 |
66 | Phoenix Production Company | Cody, WY 82414-3607 | Oil & Gas Operator | Oct 2023 |
67 | Phoenix Resources Co | | Oil & Gas Operator | Jun 1984 |
68 | Pine Haven Resources LLC | Boulder, CO 80305 | Oil Operator | Oct 2024 |
69 | Pine Ridge Petroleum LLC | Moorcroft, WY 82721 | Oil Operator | Oct 2024 |
70 | Pinedale Energy Partners Operating LLC | Tulsa, OK 74105 | Oil & Gas Operator | Apr 2021 |
71 | Pinedale Investment Inc | Pinedale, WY 82941 | Oil & Gas Operator | Oct 2024 |
72 | Pioneer Exploration, LLC | Houston, TX 77090 | Oil & Gas Operator | Sep 2024 |
73 | Pioneer Natural Resources USA Inc | Irving, TX 75039 | Oil & Gas Operator | Jul 2024 |
74 | Pioneer Oil & Gas | South Jordan, UT 84095 | Oil & Gas Operator | Jan 2014 |
75 | Pittencrieff America Inc | Abilene, TX 79608 | Oil & Gas Operator | Feb 2003 |
76 | Plains Petroleum Operating Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
77 | Planet Associates Inc | Denver, CO 80218 | Oil Operator | Dec 1994 |
78 | PML Operating LLC | | Oil Operator | Sep 2024 |
79 | Poc-I LLC | Casper, WY 82605 | Oil & Gas Operator | Oct 2024 |
80 | Pogo Producing Company LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2024 |
81 | Polfam Exploration Co | Denver, CO 80204 | Oil & Gas Operator | Mar 2007 |
82 | Polumbus Corp, The | Denver, CO 80202 | Oil & Gas Operator | Sep 1982 |
83 | Powder Battalion Holdings LLC | Sheridan, WY 82801 | Gas Operator | Dec 2023 |
84 | Powder River Oil | Golden, CO 80401 | Oil & Gas Operator | Sep 2018 |
85 | Powder River Petroleum | Boerne, TX 78006 | Oil & Gas Operator | Dec 1998 |
86 | Powder River Royalty Inc | | Oil & Gas Operator | Dec 1986 |
87 | Powerline Energy Corporation | Arlington, TX 76015 | Oil & Gas Operator | Dec 2024 |
88 | PRB Oil & Gas Inc | Denver, CO 80202 | Gas Operator | Jul 2008 |
89 | Preferred Pipeline Corp. | Victoria, TX 77902 | Oil & Gas Operator | Oct 2024 |
90 | Prenalta Corporation | Terrytown, NY 10591 | Oil & Gas Operator | Jan 1997 |
91 | Pride Energy Company An Oklahoma GP | Tulsa, OK 74170 | Oil & Gas Operator | Sep 2024 |
92 | Prima Exploration, Inc. | Denver, CO 80206 | Oil & Gas Operator | Oct 2024 |
93 | Primary Fuels Inc | Midland, TX 79701-4410 | Oil & Gas Operator | Mar 1991 |
94 | Prime Operating Company | Houston, TX 77024 | Oil & Gas Operator | Dec 2024 |
95 | Principle Petroleum LLC | Dallas, TX 75313 | Oil Operator | Oct 2024 |
96 | Propel Energy Company | | Oil Operator | Oct 1991 |
97 | Prospective Invest & Trad Co LTD | Tulsa, OK 74170 | Oil & Gas Operator | Aug 2005 |
98 | Proven Petroleum, Inc. | Lakewood, CO 80228 | Oil & Gas Operator | Sep 2024 |
99 | Provident Resources LTD | | Oil & Gas Operator | Dec 1986 |
100 | Puma Petroleum I | | Oil & Gas Operator | Dec 1988 |