Kirby Corporation operates domestic tank barges in the United States. Its Marine Transportation segment provides marine transportation and towing services for bulk liquid products, operating tank barges on the Mississippi River System, the Gulf Intracoastal Waterway, and coastwise along three U.S. coasts, Alaska, and Hawaii. The segment transports petrochemicals, black oils, refined petroleum products, and agricultural chemicals, and also operates offshore dry-bulk barges and tugboats in U.S. coastal trade. Its Distribution and Services segment sells after-market parts and services for engines, transmissions, and related equipment, and manufactures and remanufactures oilfield service equipment and power generation and energy storage systems. The company was formerly known as Kirby Exploration Company, Inc. and changed its name to Kirby Corporation in 1990. Founded in 1921, it is headquartered in Houston, Texas.