1 | U Bee Tea Production LLC | Culbertson, MT 59218 | Oil & Gas Operator | Jan 2024 |
2 | U R C C | | Oil & Gas Operator | Jun 1991 |
3 | U S Department Of Energy | | Oil & Gas Operator | Apr 1999 |
4 | U S Drilling Company Inc | Holdenville, OK 74848-0913 | Oil & Gas Operator | Mar 2017 |
5 | U S Energy Corp. Of Amer. Inc. | Ranger, TX 76470 | Oil & Gas Operator | Mar 2024 |
6 | U S Exploraton Liq Trust | | Oil & Gas Operator | Oct 1994 |
7 | U S Liquids Of La., L.P. | | Oil Operator | Apr 2014 |
8 | U S Oil Reclaimers LLC | Drumright, OK 74030-1155 | Oil Operator | Jun 2023 |
9 | U V Industries | | Oil & Gas Operator | Jan 1993 |
10 | U-N-I Exploration & Development, Inc. | Yates Center, KS 66783 | Oil & Gas Operator | Jan 2003 |
11 | U. D. Man, Inc. | San Antonio, TX 78212 | Oil & Gas Operator | Mar 2024 |
12 | U. O. C., Inc. | | Oil Operator | Jun 2019 |
13 | U. S. Operating, Inc. | Dallas, TX 75252 | Oil & Gas Operator | Mar 2024 |
14 | U.S. Capital Corp Of Am, Inc. | | Oil & Gas Operator | Aug 1998 |
15 | U.S. Enercorp, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Jul 2004 |
16 | U.S. Enercorp, LTD. | San Antonio, TX 78209 | Oil & Gas Operator | Sep 2019 |
17 | U.S. Energy Development Corp | Arlington, TX 76011 | Oil & Gas Operator | Mar 2024 |
18 | U.S. Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Aug 2003 |
19 | U.S. Sovereign Oil And Gas, Inc. | Dallas, TX 75355 | Oil & Gas Operator | Mar 2024 |
20 | U.S. Steel Mining Co., Inc. | | Gas Operator | Jan 2000 |
21 | U.S. Steel Mining Co., LLC | | Gas Operator | Oct 2002 |
22 | U.S.A. Plugging Company | Pearsall, TX 78061 | Oil & Gas Operator | Mar 2024 |
23 | U1 Ranch Oil | Weesatche, TX 77993 | Oil & Gas Operator | Mar 2024 |
24 | Uae Investco 1 (Estill), LLC | Ravenna, KY 40472 | Oil Operator | Dec 2022 |
25 | Uae Investco 2 (Lee), LLC | Ravenna, KY 40472 | Oil Operator | Dec 2021 |
26 | Ubetco, Inc. | Rockdale, TX 76567 | Oil & Gas Operator | Mar 2024 |
27 | Uhc New Mexico Corporation | Midland, TX 79702 | Oil & Gas Operator | Feb 2007 |
28 | Uhc Petroleum Corporation | Rocksprings, TX 78880 | Oil & Gas Operator | Mar 2024 |
29 | Uhl Oil Co., Inc. | Bradford, PA 16701 | Oil & Gas Operator | Dec 2022 |
30 | Uhl, Robert | Bradford, PA 16701 | Oil & Gas Operator | Dec 2022 |
31 | Uhls, Jimmie J. | Sedan, KS 67361 | Oil Operator | Sep 2019 |
32 | Uinta Oil & Gas | Roosevelt, UT 84066 | Oil & Gas Operator | Nov 1997 |
33 | Uinta Wax Operating, LLC | Fort Worth, TX 76109 | Oil & Gas Operator | Dec 2023 |
34 | Uinta-Taylor Fund, LTD | Roosevelt, UT 84066 | Oil & Gas Operator | Nov 2018 |
35 | Uintah Investors LLC | Orem, UT 84097 | Oil & Gas Operator | Jan 2024 |
36 | Ulatex Oil & Gas Inc. | Nocona, TX 76255 | Oil & Gas Operator | Dec 1998 |
37 | Ullrich Sandy J | | Oil Operator | Dec 2023 |
38 | Ullum Oil And Gas Development Corporation, Inc. | Grantsville, WV 26147-0000 | Oil & Gas Operator | Dec 2021 |
39 | Ulrich, William J. Jr.& Connie | | Gas Operator | Dec 2022 |
40 | Ultra Oil & Gas, Inc. | Centerton, AR 72719 | Oil & Gas Operator | Mar 2024 |
41 | Ultra Petroleum (U.S.A.), Inc. | Granbury, TX 76048 | Oil & Gas Operator | Sep 2003 |
42 | Ultra Production Company, LLC | Cedar Bluff, VA 24609 | Gas Operator | Oct 2014 |
43 | Ultra Resources Inc | Houston, TX 77060 | Oil & Gas Operator | Dec 2023 |
44 | Ultramar Oil & Gas LTD | Houston, TX 77060 | Oil & Gas Operator | Jul 1995 |
45 | Ultramar Production Company | | Oil & Gas Operator | Dec 1991 |
46 | Ulysses, City Of | Ulysses, KS 67880 | Gas Operator | Oct 2023 |
47 | Umberham Oil Company Inc | Oklahoma City, OK 73151-4000 | Oil & Gas Operator | Jan 2024 |
48 | Umc Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
49 | Ummel'S Tank Ser | | Oil Operator | Sep 1994 |
50 | Unbridled Resources, LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2024 |
51 | Underground Energy Inc. | | Oil & Gas Operator | Nov 2023 |
52 | Underwood Oil & Gas | Casper, WY 82602 | Oil & Gas Operator | Jan 2024 |
53 | Underwood Oil And Gas LLC | | Oil & Gas Operator | Jan 2024 |
54 | Underwood, Donald D. Dba Mustang Oil Co | Salem, WV 26426 | Oil & Gas Operator | Dec 2020 |
55 | Underwood, Jim | Graham, TX 76450 | Oil & Gas Operator | Mar 2018 |
56 | Uni Production Company, Inc. | | Oil & Gas Operator | Apr 1988 |
57 | Unicorn Drilling Inc | Cody, WY 82414 | Oil Operator | Dec 1998 |
58 | Unicorn Energy, Inc. | Elgin, TX 78621 | Oil & Gas Operator | Mar 2024 |
59 | Unicorn Oil & Gas Co Inc | Dorset, OH 44032 | Oil & Gas Operator | Dec 1993 |
60 | Unifid Oil & Gas Corp. | | Oil & Gas Operator | Mar 1994 |
61 | Unified Oil & Gas Corp. | Snyder, TX 79550 | Oil Operator | Mar 2024 |
62 | Unioil | Denver, CO 80203 | Oil & Gas Operator | Jun 2012 |
63 | Union Camp Corp | Dover, OH 44622 | Oil & Gas Operator | Dec 2002 |
64 | Union City Boro Muni Auth Erie Cnty | Union City, PA 16438-1326 | Gas Operator | Dec 2023 |
65 | Union Crude Company | Baytown, TX 77521 | Oil & Gas Operator | Apr 2018 |
66 | Union Crude Operating Co. | Baytown, TX 77521 | Oil Operator | Aug 2003 |
67 | Union Development Company Inc | | Oil & Gas Operator | Dec 1992 |
68 | Union Diversified, Inc. | | Gas Operator | Dec 2008 |
69 | Union Exploration Partners, LTD. | | Oil & Gas Operator | Aug 1990 |
70 | Union Gas Operating Company | Houston, TX 77014 | Oil & Gas Operator | Mar 2024 |
71 | Union Oil Co | Danville, OH 43014 | Oil & Gas Operator | Dec 2014 |
72 | Union Oil Co Of California | Midland, TX 79706 | Oil & Gas Operator | Jan 2022 |
73 | Union Operating Corp | Lakewoord, CO 80215 | Oil Operator | Dec 2022 |
74 | Union Pacific Austin Chalk Co. | Fort Worth, TX 76101 | Oil & Gas Operator | Jan 2001 |
75 | Union Pacific Re | | Oil & Gas Operator | Dec 1996 |
76 | Union Pacific Resour | | Oil & Gas Operator | Apr 2002 |
77 | Union Pacific Resources Co. | Fort Worth, TX 76101 | Oil & Gas Operator | Sep 2002 |
78 | Union Petro Inc | Uniontown, KY 42461 | Oil Operator | Dec 2022 |
79 | Union Petrochemical | | Oil & Gas Operator | Dec 1982 |
80 | Union Producing Co. | | Gas Operator | Dec 1992 |
81 | Union Resources Inc | | Oil & Gas Operator | Dec 1996 |
82 | Union Royalty, Inc. | Midland, TX 79706 | Oil & Gas Operator | Jul 2014 |
83 | Union Seaboard Corporation | Houston, TX 77024 | Oil & Gas Operator | Mar 2008 |
84 | Union Springs Central School District | Union Springs, NY 13160 | Gas Operator | Dec 2022 |
85 | Union Texas Petroleum | Houston, TX 77252 | Oil & Gas Operator | Oct 1991 |
86 | Union Texas Petroleum Corp. | Houston, TX 77252-2120 | Oil & Gas Operator | Dec 2014 |
87 | Union Texas Products Corp | Houston, TX 77252 | Oil & Gas Operator | Nov 1994 |
88 | Union Valley Petroleum Corporation | Enid, OK 73701 | Oil & Gas Operator | Jan 2024 |
89 | Unionville Explo | | Oil Operator | Jul 1984 |
90 | Unit Drilling & Exploration Co | Tulsa, OK 74132-5300 | Oil & Gas Operator | Dec 2023 |
91 | Unit Manager, Citronelle Unit | | Oil & Gas Operator | Sep 2001 |
92 | Unit Petroleum Company | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2024 |
93 | United Company | Lubbock, TX 79408 | Oil & Gas Operator | Jun 1995 |
94 | United Energy & Expl Inc | Ada, OK 74821-2449 | Oil & Gas Operator | Jan 2024 |
95 | United Energy & Exploration LLC | Ada, OK 74821 | Oil & Gas Operator | Jan 2024 |
96 | United Energy Corporation | San Antonio, TX 78209 | Oil & Gas Operator | Mar 2024 |
97 | United Energy Develop Co LTD | Bartlesville, OK 74003 | Oil Operator | Mar 2004 |
98 | United Energy Operating, LLC | Edmond, OK 73083 | Oil & Gas Operator | Mar 2024 |
99 | United Energy Partners, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2008 |
100 | United Energy Trading LLC | Tulsa, OK 74133 | Gas Operator | Feb 2015 |