Profile: Kirby Corp. provides services that includes the transporting of petrochemicals, pressurized products, black oil products, refined petroleum products and agricultural chemical products by inland tank barge. We also service large medium-speed and high-speed diesel engines and reduction gears, and sells diesel engine parts. We operate largest fleet of inland tank barges and towing vessels. Petrochemicals, such as styrene, benzene and methanol; liquid fertilizer, including anhydrous ammonia; refined products, including gasoline, diesel and jet fuel; black oil products, such as asphalt, No. 6 fuel oil and coker fuel; and pressurized products, such as butane, propane and butadiene, are transported efficiently and safely from producers to intermediaries to end users.