DORIS
Oil and GasTexas, United States1001-5000 Employees
Doris, Inc. is an oil and gas engineering and project-management firm based in Houston, Texas, founded in 2000 as a subsidiary of Doris Engineering. It provides support across the full lifecycle of onshore and offshore field developments, from concept studies to operational assistance. The parent organization, Doris Engineering, is a privately held, independent engineering company with a long industry history and a global partner network. Doris, Inc. operates under a corporate quality management system that complies with ISO 9001. The company serves oil and gas operators and project partners seeking integrated lifecycle support for both onshore and offshore developments. In April 2026, DORIS Group announced a partnership with TotalEnergies, reflecting ongoing collaboration with major industry players.