1 | H & R Well Services, Inc. | FT Morgan, CO 80701 | Oil & Gas Operator | Apr 2015 |
2 | Hallwood Petroleum, Inc. | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
3 | Hardrock Oil Company | Great Falls, MT 59403 | Gas Operator | Aug 2024 |
4 | Hawkins, Robert S. | Kevin, MT 59454 | Oil Operator | Jun 2018 |
5 | Hawley & Desimon | Conrad, MT 59425 | Oil Operator | Sep 2024 |
6 | Hawley Hydrocarbons, Merrill&Carol Hawley Dba | Great Falls, MT 59405 | Oil Operator | Aug 2024 |
7 | Hawley Oil Company | Conrad, MT 59425-9802 | Oil Operator | Aug 2024 |
8 | Headington Oil Company LLC | Dallas, TX 75204 | Oil & Gas Operator | Apr 2016 |
9 | Helis Oil & Gas Company, L.L.C. | New Orleans, LA 70130 | Oil & Gas Operator | Oct 2023 |
10 | Highline Exploration, Inc. | Tuscaloosa, AL 35402 | Gas Operator | Nov 2020 |
11 | Hinto Energy, LLC | Edwards, CO 81632 | Oil Operator | Mar 2017 |
12 | Hofland, James D. | Kevin, MT 59454 | Oil & Gas Operator | Sep 2024 |
13 | Home-Stake Oil & Gas Company | Plano, TX 75093 | Oil & Gas Operator | Jul 2024 |
14 | Howell Petroleum Corporation | Houston, TX 77251 | Oil & Gas Operator | Oct 2015 |
15 | HR Energy LLC | Shelby, MT 59474 | Oil & Gas Operator | Aug 2024 |
16 | HRC Operating, LLC | Denver, CO 80202 | Oil & Gas Operator | Nov 2017 |
17 | HS Resources, Inc. | Denver, CO 80202 | Oil & Gas Operator | Dec 2005 |
18 | Huber J M Corp | Edison, NJ 08837 | Oil & Gas Operator | Dec 2024 |
19 | Hugoton Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Dec 2019 |
20 | Humble Oil & Refining Co. | Houston, TX 77252 | Oil & Gas Operator | Jan 2000 |
21 | Huntington Energy LLC | Nichols Hill, OK 73116 | Oil & Gas Operator | Dec 2024 |
22 | Huntington Resources Inc | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2006 |