Hornbeck Offshore Services Inc. is a company that specializes in providing logistics support services to the offshore oil and gas exploration and production industry mainly in the United States and Gulf of Mexico. The company operates a fleet of offshore supply vessels, multi-purpose support vessels, and a shore-base to provide specialized services to its clients. Hornbeck Offshore Services operates in two segments, namely Upstream and Downstream, and is focused on providing high-quality services to its clients in the oil and gas industry.