NuStar Energy LP engages in the transportation of petroleum products and anhydrous ammonia, and the terminalling, storage and marketing of petroleum products. It operates through the following business segments: Pipeline, Storage, and Fuels Marketing. The Pipeline segment provides transportation of refined petroleum products, crude oil and anhydrous ammonia.
The Storage segment is engaged in terminal and storage facilities, which includes storage and handling services on a fee basis for petroleum products, specialty chemicals, crude oil and other liquids. The Fuels Marketing segment purchase crude oil and refined petroleum products for resale. The company was founded in 1999 and is headquartered in San Antonio, TX.