Overseas Shipholding Group, Inc. (OSG) is an American company specializing in the transportation of crude oil and oil products through its fleet of tankers. The company is headquartered in New York. OSG is a major player in the energy shipping market and has extensive international operations. Their fleet includes various types of vessels, including supertankers, aframaxes, and panamaxes, enabling the transportation of different types of crude oil and processed oil products.