Corby Robertson

The National Petroleum Council operates as a council for national petroleum. The private company is based in Washington.

The Texas Medical Center provides healthcare services. The company was founded in 1900 and is headquartered in Huston, TX.

Cullen Trust For Higher Education is a Texas charitable trust that provides financial assistance to non-profit organizations offering healthcare services in the greater Houston area. The private company's description includes a discussion of community health centers in Houston and their response to COVID-19. The company is based in Houston, TX. The company supports medical schools, hospital systems, community clinics, and organizations providing mental health services.

Quintana Shipping Ltd. engages in acquisition and operation of dry bulk vessels. It offers shipping and transport services. The company was founded by Eleftherios A. Papatrifon and Paul J. Cornell in November, 2010 and is headquartered in Athens, Greece.

Quintana Energy Services LLC engages in the provision of completion, production and drilling services in the US onshore oilfield services industry. The company is headquartered in Houston, TX.

Quintana Energy Services, Inc. engages in the provision of diversified oilfield services to onshore oil and natural exploration and production companies. It operates through the following business segments: Directional Drilling Services, Pressure Pumping Services, Pressure Control Services, and Wireline Services. The Directional Drilling Services segment enables efficient drilling and guidance of the horizontal section of a wellbore using technologically-advanced fleet of downhole motors and measurement while-drilling kits. The Pressure Pumping Services segment focuses on large hydraulic fracturing jobs. The Pressure Control Services segment provides well control for completions and work over applications through coiled tubing units, rig-assisted snubbing units, and ancillary equipment. The Wireline Services segment includes wireline units providing a full range of pump-down services in support of unconventional completions, and cased-hole wireline services enabling reservoir characterization. The company was founded on April 13, 2017 and is headquartered in Houston, TX..

Quintana Energy Services GP LLC provides oil & gas exploration services. The company is headquartered in Houston, TX.

Quintana Resources Capital ULC engages in the provision of financial and technical services to Quintana Resources Holdings LP, an investment holding company based in Houston, Texas. The company was founded in 2014 and is headquartered in Vancouver, Canada.

Great Northern Properties LP engaged in coal mining services. The company was founded on March 4, 1986 and is headquartered in William Baytown, TX.

Part of Quintana Capital Group, Quintana Capital Group GP Ltd. provides investment services. The company is based in Houston, TX.

Quintana Resources Holdings LP is a metals and mining investment holding private company. The company is based in Houston, TX and has subsidiaries in the United States. The CEO of the company is Corby J. Robertson.

Part of Quintana Capital Group, the company provides investment services. The company is based in Houston, TX.