Hornbeck Offshore Services, Inc., through its subsidiaries, provides marine transportation services to exploration and production, oilfield service, offshore construction, and the United States military customers. The company operates in two segments, Upstream and Downstream. The Upstream segment owns and operates fleets of U.S.-flagged offshore supply vessels (OSVs) and multi-purpose support vessels (MPSVs) that support the deep-well, deepwater and ultra-deepwater exploration, development, production, construction, installation, inspection, repair, maintenance, well-stimulation, and other enhanced oil recovery requirements of the offshore oil and gas industry in the United States, Gulf of Mexico, other U.S. coastlines, Latin America, and the Middle East. This segment also operates a shore-base support facility located in Port Fourchon, Louisiana, as well as provides vessel management services, such as crewing, daily operational management, and maintenance activities for other vessels owners. The Downstream segment owns and operates a fleet of ocean-going tugs and double-hulled tank barges that transport petroleum products primarily in the northeastern United States and the Gulf of Mexico. This segment’s tugs and tank barges provide coastwise transportation of refined and bunker grade petroleum products, as well as non-traditional downstream services, such as support of deepwater well testing, and other specialty applications. As of December 31, 2012, Hornbeck Offshore Services, Inc. owned and operated 50 active new generation OSVs and 4 MPSVs; and 9 double-hulled tank barges and 14 ocean-going tugs. The company was founded in 1997 and is headquartered in Covington, Louisiana.

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