Seacor Holdings, Inc. engages in owning, operating, investing, and marketing equipments for the offshore oil and gas, and marine transportation industries worldwide. The company's Offshore Marine Services segment operates support vessels to deliver cargo and personnel to offshore installations; to handle anchors for drilling rigs and marine equipment; to support offshore construction and maintenance work; and to provide standby safety support and oil spill response services. This segment also offers logistics services, including shorebased, marine transport, and various supply chain management services. In addition, it supports projects, such as well stimulation, seismic data gathering, and offshore accommodation.