Shell Midstream Partners, L.P. is a master limited partnership company formed to own, operate, develop and acquire pipelines and other midstream assets. The Company has interests in approximately four crude oil pipeline systems, approximately two refined products systems and a crude tank storage and terminal system. The crude oil pipeline systems, which are held by Zydeco Pipeline Company LLC (Zydeco); Mars Oil Pipeline Company (Mars); Poseidon Oil Pipeline Company, LLC (Poseidon), and Pecten Midstream LLC (Pecten), are located along the Texas and Louisiana Gulf Coast and in the Gulf of Mexico. The Company has interests in Zydeco, Mars, Bengal, Colonial, Poseidon and Pecten. Zydeco spans over 350 miles and has a mainline capacity of approximately 370 thousand barrels per day (kbpd). Zydeco includes tankage in Port Neches, Texas and Erath and Houma, Louisiana, a dock in Houma, Louisiana and a pipeline that indirectly connects to the offshore Boxer pipeline system.