Phillips 66 Partners L.P is a downstream energy company. It operates in three segments: Refining and Marketing, Midstream and Chemicals. Refining and Marketing segment purchases, refines, markets and transports crude oil and petroleum products primarily in the United States, Europe and Asia. This segment also includes power generation operations. Midstream segment gathers, processes, transports and markets natural gas and transports, fractionates and markets natural gas liquids primarily in the United States. Chemicals segment manufactures and markets petrochemicals and plastics. Phillips 66 Partners L.P is headquartered in Houston, Texas.