Oil & Gas Companies in Colorado
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | Taylor* William M | | Oil & Gas Operator | Nov 2015 |
| 2 | Texas American Resources Company | Austin, TX 78701 | Oil & Gas Operator | Dec 2025 |
| 3 | Texas Tea Of Colorado LLC Dba Texas Tea LLC | | Oil & Gas Operator | Jun 2021 |
| 4 | Thomas L Spring LLC | | Gas Operator | Sep 2025 |
| 5 | Tidal Wave Energy, Inc. | New Castle, PA 16105 | Oil & Gas Operator | Jun 2022 |
| 6 | Tigges Oil LLC | | Oil & Gas Operator | Dec 2022 |
| 7 | Timberline Energy Inc | Franklin, PA 16323-0269 | Oil & Gas Operator | Dec 2024 |
| 8 | Timka Resources, LTD | | Oil & Gas Operator | Oct 2025 |
| 9 | Tindall Operating Company | Englewood, CO 80112 | Oil & Gas Operator | Jan 2025 |
| 10 | Tom Brown Inc | Denver, CO 80202 | Oil & Gas Operator | Dec 2004 |
| 11 | Tom Fenno Production LLC | | Oil Operator | Apr 2017 |
| 12 | Top Operating Company | | Oil & Gas Operator | Jul 2022 |
| 13 | Trend Exploration Company | Midland, TX 79701 | Oil & Gas Operator | Mar 2008 |
| 14 | Trinity Energy Corp | Gibsonia, PA 15044-9106 | Oil & Gas Operator | Dec 2007 |
| 15 | True Oil LLC | Casper, WY 82602 | Oil & Gas Operator | Oct 2025 |
| 16 | Tudex Petroleum Inc | | Oil & Gas Operator | Sep 2019 |
| 17 | Twin Arrow Inc | Rangely, CO 81648 | Oil & Gas Operator | Sep 2009 |
| 18 | Tyler Rockies Exploration LTD | Tyler, TX 75710-0119 | Oil & Gas Operator | Sep 2025 |
Production numbers shown above are only for Colorado and for the production period listed.