101 | Stealth Energy USA Inc | Billings, MT 59104 | Oil Operator | Dec 2017 |
102 | Steamboat Oil And Gas LLC | Gillette, WY 82717 | Oil Operator | Sep 2024 |
103 | Stellar Oil Company | Arvada, CO 80006 | Oil & Gas Operator | Dec 1998 |
104 | Stephens Production Company | The Woodlands, TX 77381 | Oil & Gas Operator | Sep 2024 |
105 | Sterling Energy Corp | Denver, CO 80202 | Oil & Gas Operator | Sep 1995 |
106 | Stewart Petroleum Corporation | Greenwood VIllage, CO 80111 | Oil & Gas Operator | Dec 2023 |
107 | Stone & Wolf LLC | Sheridan, WY 82801 | Oil & Gas Operator | Dec 2006 |
108 | Stone Energy Corporation | Denver, CO 80202-2828 | Oil & Gas Operator | Oct 2014 |
109 | Stone Energy LLC | Denver, CO 80202 | Oil & Gas Operator | May 2005 |
110 | Stone Petroleum Corporation | | Oil & Gas Operator | Dec 1996 |
111 | Storm Cat Energy (USA) Operating Corporation | Denver, CO 80202 | Gas Operator | Jun 2017 |
112 | Stovall Oil Company | Casper, WY 82602 | Oil & Gas Operator | Aug 1998 |
113 | Strachan Exploration Inc | Englewood, CO 80112 | Oil & Gas Operator | Sep 2024 |
114 | Stringer E M | | Oil Operator | May 1996 |
115 | Stripper Oil Company Inc | | Oil Operator | Jul 2024 |
116 | Stroud Petroleum, Inc. | Shreveport, LA 71162 | Oil & Gas Operator | Dec 2024 |
117 | Summit Gas Resources Inc | Sheridan, WY 82801 | Gas Operator | Dec 2023 |
118 | Summit Operating LLC | Boulder, CO 80301 | Oil & Gas Operator | Sep 2024 |
119 | Summit Resources, Inc. | Houston, TX 77077 | Oil & Gas Operator | Sep 2016 |
120 | Suncor Energy Natural Gas America Inc | Greenwood VIllage, CO 80111 | Gas Operator | Feb 2010 |
121 | Sundance Energy Inc | Denver, CO 80202 | Oil & Gas Operator | Jul 2014 |
122 | Sundance Oil Exploration Co | | Oil Operator | Mar 1986 |
123 | Sunshine Valley Petroleum | Casper, WY 82605 | Oil & Gas Operator | Sep 2024 |
124 | Supron Energy Corp | | Oil & Gas Operator | Oct 1995 |
125 | Surtek Inc | | Oil & Gas Operator | May 1993 |
126 | Survivor Oil Inc | Tulsa, OK 74133 | Oil & Gas Operator | Sep 2007 |
127 | Swenco-Western Inc | Houston, TX 77060 | Oil & Gas Operator | Jan 1997 |
128 | Swepi LP | Houston, TX 77079 | Oil & Gas Operator | Jul 2020 |
129 | Swift Energy Company | Houston, TX 77060 | Oil & Gas Operator | Mar 2021 |
130 | Synergy Offshore LLC | Houston, TX 77024 | Oil & Gas Operator | Feb 2022 |
131 | Synergy Operating LLC | Farmington, NM 87499 | Oil & Gas Operator | Jul 2024 |