NuStar Energy L.P. is engaged in the transportation of petroleum products and anhydrous ammonia; the terminaling and storage of petroleum products, and the marketing of petroleum products. The Company's operating segments include pipeline, storage and fuels marketing. The pipeline segment consists of the transportation of refined petroleum products, crude oil and anhydrous ammonia. The storage segment includes terminal and storage facilities that provide storage, handling and other services for petroleum products, crude oil, specialty chemicals and other liquids. The fuels marketing segment involve the purchase of crude oil, fuel oil, bunker fuel, fuel oil blending components and other refined products for resale. The Company's assets include approximately 5,500 miles of refined product pipelines with over 20 associated terminals; over 2,000 miles of anhydrous ammonia pipelines; approximately 1,200 miles of crude oil pipelines, and over 50 terminal and storage facilities.