Kirby Corporation is a leading tank barge operator in the United States, specializing in the transportation of bulk liquid products across various waterways, including the Mississippi River System, the Gulf Intracoastal Waterway, and all three U.S. coasts, as well as in Alaska and Hawaii. The company primarily transports petrochemicals, black oil, refined petroleum products, and agricultural chemicals via its tank barges. Kirby operates in two main segments: the Marine transportation segment, which focuses on marine transportation services using tank barges and towing vessels, and the Distribution and services segment, which offers aftermarket services and genuine replacement parts for engines, transmissions, reduction gears, and power generation equipment, primarily for the oil and gas sector. Additionally, Kirby owns and operates eight ocean-going barge and tug units that transport dry-bulk commodities in U.S. coastwise trade.
Higman Marine Services, Inc. is engaged in the inland transportation of bulk liquid petroleum products and chemicals through its fleet of push boats and tank barges. Founded in 1917 and headquartered in Houston, Texas, the company operates along the Gulf Intracoastal Waterway and the Mississippi River System, serving regions that include Arkansas, Illinois, Missouri, Ohio, Tennessee, and others. In addition to transportation services, Higman Marine Services also sells vessels and equipment. As a subsidiary of Kirby Corporation, Higman Marine Services continues to support the commercial sector by providing reliable and efficient transport solutions for refined petroleum, crude oil, condensates, black oil products, and petrochemicals.
Stewart & Stevenson is a privately held company that manufactures and distributes specialized equipment and aftermarket parts for various industries, including oil and gas, marine, construction, power generation, transportation, mining, and agriculture. The company's extensive product lineup features well stimulation and fracturing systems, cementing units, well intervention and coiled tubing systems, as well as power generation systems, drive systems, switchgear, controls, and railcar movers. By serving multiple sectors, Stewart & Stevenson plays a crucial role in providing essential products and services that support operations in these industries.
Maritime Investments
Acquisition in 2012
Maritime Investments operates tank barges and tugboats for transporting black oil products.
Penn Maritime
Acquisition in 2012
Penn operates a fleet of 18 heated, double-hulled tank barges, with a capacity of 1.9 million barrels, and 16 tugboats along the East Coast and Gulf Coast of the United States. Penn's tank barge fleet has an average age of approximately 13 years with a product mix that consists primarily of refinery feedstocks, asphalt and crude oil. Penn's customers include major oil companies and refiners, nearly all of whom are current Kirby customers for inland tank barge services.
Allied Transportation
Acquisition in 2012
Allied Transportation is a privately held company engages in towing and tugboat services.
K-Sea Transportation Partners
Acquisition in 2011
K-Sea Transportation Partners LLC, headquartered in East Brunswick, New Jersey, is a leading provider of marine transportation, distribution and logistics services in the U.S. From locations in New York, Philadelphia, Norfolk, Seattle and Honolulu, K-Sea operates a large fleet of tugs and tank barges that serves a wide range of customers, including major oil companies, oil traders and refiners.
United Holdings is a renewable energy company based in Shreveport, Louisiana, founded in 1938. The company operates as a distributor and service provider, focusing on engine and transmission-related products tailored for the oil and gas services, power generation, and transportation sectors. It offers a range of products, including engines, compressors, transmissions, generators, oil field equipment, and refrigeration solutions. United Holdings aims to enhance the efficiency and reliability of these industries by providing custom equipment and exceptional customer service, thereby supporting the operational needs of land-based oil and gas, power generation, and on-highway transportation.
Global Power Systems operates factory-authorized full service marine market dealerships for Cummins, Detroit Diesel and John Deere high-speed diesel engines, as well as Allison transmissions. Global is also an authorized marine dealer for Caterpillar in Louisiana.
Marine Systems
Acquisition in 1982
Marine Systems provides diesel engine and reduction gear repair services and remanufacturing and replacement parts.
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