1 | Adams, Frank B | Corpus Christi, TX 78476 | Oil & Gas Operator | Feb 1988 |
2 | Altex Oil Corp | Breckenridge, CO 80424-1057 | Oil & Gas Operator | Dec 1999 |
3 | Amax Petroleum Corporation | Houston, TX 77042 | Oil & Gas Operator | Dec 2012 |
4 | Ambra Oil & Gas Company | Rangely, CO 81648 | Oil & Gas Operator | Jul 2006 |
5 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
6 | Anadarko E&P Onshore LLC | Houston, TX 77046 | Oil & Gas Operator | Dec 2024 |
7 | Anschutz Corporation, The | Denver, CO 80202 | Oil & Gas Operator | Sep 2016 |
8 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Dec 2024 |
9 | Arb Energy Utah, LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2024 |
10 | Arch Oil And Gas Company | Midland, TX 79702 | Oil & Gas Operator | Feb 1994 |
11 | Arco Oil & Gas Company | Plano, TX 75086 | Oil & Gas Operator | Mar 2006 |
12 | Augustus Energy Partners LLC | Billings, MT 59102 | Oil & Gas Operator | Feb 2014 |
13 | Aviara Energy Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 2002 |
14 | B L Oil And Gas | Loco Hills, NM 88255 | Oil & Gas Operator | Aug 2010 |
15 | Babcock & Brown Energy Inc | Denver, CO 80202 | Oil & Gas Operator | Dec 2007 |
16 | Beartooth Oil & Gas Company | Billings, MT 59103 | Oil & Gas Operator | Oct 2024 |
17 | Belco Development Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Feb 1994 |
18 | Belco Petroleum Corp | Grand Junction, CO | Oil & Gas Operator | Dec 1983 |
19 | Belnorth Petroleum Corporation | Midland, TX 79701 | Oil & Gas Operator | Feb 1991 |
20 | Benson-Montin-Greer DRL | Farmington, NM 87402 | Oil & Gas Operator | Oct 2024 |
21 | Bill Barrett Corporation | Denver, CO 80202 | Oil & Gas Operator | Dec 2017 |
22 | Birch Corporation | Denver, CO 80217 | Oil & Gas Operator | Dec 1989 |
23 | Boardwalk Petroleum Inc | | Oil & Gas Operator | Dec 1983 |
24 | Bog Inc (Bowers) | Grand Junction, CO 81502 | Oil & Gas Operator | Jan 1989 |
25 | Bonneville Fuels Corp | Denver, CO 80290 | Oil & Gas Operator | Jun 2002 |
26 | Bowers Oil & Gas, Inc. | Grand Junction, CO 81505-1097 | Oil & Gas Operator | Nov 2022 |
27 | Broadhead, Walter | Grand Junction, CO 81502 | Oil & Gas Operator | Mar 2005 |
28 | Buckhorn Petroleum | | Oil & Gas Operator | Dec 1983 |
29 | Burlington Resources O&G | Midland, TX 79710-1810 | Oil & Gas Operator | Mar 1997 |
30 | Burton/Hawks Inc | Casper, WY 82602 | Oil & Gas Operator | Sep 1993 |
31 | Bwab Incorporated | Denver, CO 80202 | Oil & Gas Operator | Aug 1996 |
32 | C C Co | Holladay, UT 84124 | Oil & Gas Operator | Jan 2020 |
33 | C.S.V. Oil Exploration Co | West Jordan, UT 84088 | Gas Operator | Sep 2024 |
34 | Carbon Energy Corporation (USA) | Denver, CO 80290 | Oil & Gas Operator | Jul 2004 |
35 | Cimarex Energy Co | Midland, TX 79706 | Oil & Gas Operator | Dec 2024 |
36 | Clayton Investment | Farmington, NM 87401 | Oil & Gas Operator | Jun 1995 |
37 | Cochrane Resources Inc | Roosevelt, UT 84066 | Oil & Gas Operator | Sep 2024 |
38 | Colorado Drilling Company | Grand Junction, CO 81501 | Oil Operator | Jan 1990 |
39 | Columbia Gas Development | Houston, TX 77251 | Oil & Gas Operator | Jun 1996 |
40 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
41 | Consolidated Oil & Gas Inc | Wichita, KS 67202 | Oil & Gas Operator | Dec 2012 |
42 | Coseka Resources USA LTD | Denver, CO 80202-1602 | Oil & Gas Operator | Jun 1988 |
43 | Credo Petroleum Corporation | Denver, CO 80202 | Oil & Gas Operator | Jan 2013 |
44 | Crystal Carbon Company | | Gas Operator | Dec 1930 |
45 | D & D Oil Company | Dayton, TX 77535 | Oil & Gas Operator | Dec 2024 |
46 | Davis Oil Company | Pawhuska, OK 74056 | Oil & Gas Operator | Jun 2018 |
47 | Delhi-Taylor Oil Corp | | Oil & Gas Operator | Dec 1974 |
48 | Delta Petroleum Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 2023 |
49 | Diamond Shamrock Corp | Amarillo, TX 79105 | Oil & Gas Operator | Jan 1987 |
50 | Diamond Shamrock Expl | Dallas, TX 75201 | Oil & Gas Operator | May 1987 |
51 | Dougherty, H W | Petaluma, CA 94954 | Gas Operator | Oct 2019 |
52 | Dyco Petroleum Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Mar 2015 |
53 | Elk Production LLC | Denver, CO 80202 | Oil & Gas Operator | Aug 2011 |
54 | Encana Oil & Gas (USA) Inc. | Denver, CO 80202 | Oil & Gas Operator | Oct 2020 |
55 | Enogex Exploration Corp | Oklahoma City, OK 73124-0300 | Oil & Gas Operator | Jun 2000 |
56 | Enron Oil & Gas Company | Houston, TX 77210 | Oil & Gas Operator | Dec 1999 |
57 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 2024 |
58 | EP Operating Company LP | Midland, TX 79705-5510 | Oil & Gas Operator | Mar 1993 |
59 | Eps Resources Corp | Englewood, CO 80111 | Oil & Gas Operator | Dec 2009 |
60 | Evergreen Operating Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 2019 |
61 | Exit Inc | | Oil Operator | Dec 1983 |
62 | F & M Oil Company Inc | Pettus, TX 78146 | Oil & Gas Operator | Dec 2024 |
63 | Falcon Energy LLC | Fruita, CO 81521 | Oil & Gas Operator | Sep 2011 |
64 | Fidelity E&P Company | Denver, CO 80202 | Oil & Gas Operator | Feb 2016 |
65 | First Zone Production | Salt Lake City, UT 84102 | Oil & Gas Operator | Dec 1997 |
66 | Flatirons Resources LLC | Westminster, CO 80021 | Oil & Gas Operator | Dec 2022 |
67 | Florida Exploration Co | Aurora, CO 80014 | Oil & Gas Operator | Sep 1989 |
68 | Fortune Oil LTD | Salt Lake City, UT 84106 | Oil & Gas Operator | May 1987 |
69 | Foster Energy Group, LLC | Wolfforth, TX 79382 | Oil & Gas Operator | Sep 2024 |
70 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | Dec 2024 |
71 | General Minerals Corp | Oklahoma City, OK 73105 | Oil & Gas Operator | Dec 2015 |
72 | Getty Oil Company | Hays, KS 67601 | Oil & Gas Operator | Mar 2015 |
73 | Grace Petroleum Corp. | Tulsa, OK 74103 | Oil & Gas Operator | Oct 1997 |
74 | Graham Energy LTD | Houston, TX 77024 | Oil & Gas Operator | Mar 1994 |
75 | Graham Royalty LTD | Covington, LA 70434 | Oil & Gas Operator | Jul 2007 |
76 | Grand Resources | Salt Lake City, UT 84115 | Oil & Gas Operator | Apr 1992 |
77 | Great Western Drilling Co | Midland, TX 79701 | Oil & Gas Operator | Dec 2024 |
78 | Gulf Oil Corp. | Denver, CO 80201-0599 | Oil & Gas Operator | Dec 2014 |
79 | Hallwood Petroleum, Inc. | Midland, TX 79701 | Oil & Gas Operator | Aug 2024 |
80 | Hancock, Burton W | Morrison, CO 80465 | Oil & Gas Operator | Dec 2017 |
81 | Harper Oil Co. | Denver, CO 80217 | Oil & Gas Operator | Aug 2024 |
82 | Harrison, Thomas D | Park City, UT 84060-7307 | Gas Operator | Dec 1998 |
83 | Hunt Petroleum (Aec), Inc. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2008 |
84 | Iacx Energy LLC | Dallas, TX 75240 | Oil & Gas Operator | Oct 2024 |
85 | Intrepid Oil & Gas LLC | Denver, CO 80202 | Oil & Gas Operator | Apr 2021 |
86 | J C Thompson Operator LLC | Greenwood, CO 80111-2919 | Oil & Gas Operator | Jul 2012 |
87 | Jacobs, R L Oil & Gas Co | Grand Junction, CO 81503 | Oil & Gas Operator | Oct 1986 |
88 | Liberty Pioneer Energy Source, Inc | Provo, UT 84604 | Oil & Gas Operator | Oct 2021 |
89 | Linn Bros Oil & Gas Inc | Fruita, CO 81521 | Oil & Gas Operator | Oct 2024 |
90 | Lone MTN Production Co | Billings, MT 59108-0965 | Oil & Gas Operator | Jul 2019 |
91 | Mar/Reg Oil Company | Reno, NV 89511 | Oil & Gas Operator | Sep 2024 |
92 | Marathon Oil Company | Houston, TX 77024 | Oil & Gas Operator | Oct 2024 |
93 | Master Pet & Devel Co Inc | Grand Junction, CO 81503 | Oil & Gas Operator | Jul 1999 |
94 | Megadon Enterprises, Inc | Salt Lake City, UT 84121 | Oil Operator | Sep 2019 |
95 | Meridian Oil Inc. | Houston, TX 77210 | Oil & Gas Operator | Aug 1996 |
96 | Merrion & Bayless | Farmington, NM 87401 | Oil & Gas Operator | May 1982 |
97 | Monahan Rex | Sterling, CO 80751 | Oil & Gas Operator | Jun 2002 |
98 | Moose Mountain Divide #1, LLC | Roosevelt, UT 84066-1656 | Oil & Gas Operator | Sep 2024 |
99 | Murdoch Oil Co Inc | Bluff, UT 84512 | Oil & Gas Operator | Jun 2010 |
100 | Natural Gas Corp Of Ca | Vernal, UT 84078 | Oil & Gas Operator | Jun 1989 |