SEACOR Holdings' diverse operations are anchored in offshore oil and gas, and marine transportation. SEACOR's offerings include offshore marine, inland river, storage and handling, distribution of petroleum, chemical and agricultural commodities, and shipping. The company operates one of the world's largest fleets of marine support vessels serving the offshore oil and gas industry, delivering cargo and crew to offshore platforms. Its marine operations include US coastal tanker transportation of fuel and chemicals and inland river barge transportation of chemicals and bulk agricultural products.