Energy Transfer Operating LP engages in the ownership and operation of logistics business, crude oil pipelines, and terminal facilities. It operates through the following segments: Intrastate Transportation and Storage, Interstate Transportation and Storage, Midstream, Natural Ga Liquid (NGL) and Refined Products Transportation and Services, Crude Oil Transportation and Services, Investment in Sunoco LP, Investment in USAC, and All Other. The Intrastate Transportation and Storage segment includes natural gas transportation pipelines receive natural gas from other mainline transportation pipelines, storage facilities, and gathering systems. The Interstate Transportation and Storage segment offers natural gas transportation pipelines receive natural gas from supply sources. The Midstream segment consists of natural gas gathering, compression, treating, processing, storage, and transportation. The NGL and Refined Products Transportation and Services segment comprises operations transport, store and execute acquisition, and marketing activities utilizing a complementary network of pipelines, storage, and blending facilities. The Crude Oil Transportation and Services segment refers to the transportation, terminalling and acquisition, and marketing services to crude oil markets. The Investment in Sunoco LP segment distributes motor fuels to independent dealers, distributors, and other commercial customers. The Investment in USAC segment provides natural gas compression services. The All Other segment markets natural gas that flows through gathering and intrastate transportation assets. The company was founded was founded in 1996 is headquartered Dallas, TX.