Hornbeck Offshore Services, Inc., together with its subsidiaries, provides marine transportation, subsea installation, and accommodation support services to exploration and production, oilfield service, offshore construction, and the U.S. military customers. It operates offshore supply vessels (OSVs), multi-purpose support vessels (MPSVs), and a shore-based facility to provide logistics support and specialty services to the offshore oil and gas exploration and production industry, primarily in the U.S. Gulf of Mexico, Latin America, and internationally. Its fleet of U.S.-flagged OSVs and MPSVs support deep-well, deepwater, and ultra-deepwater activities of the offshore oil and gas industry, such as oil and gas exploration, field development, production, construction, installation, well-stimulation, and other enhanced oil recovery, as well as inspection, repair, and maintenance services. The company also provides vessel management services, including crewing, daily operational management, and maintenance activities for other vessels owners. As of December 31, 2017, it owned and operated 62 OSVs and 8 MPSVs. Hornbeck Offshore Services, Inc. was founded in 1997 and is headquartered in Covington, Louisiana.