Crestwood Equity Partners LP is a holding company and a master limited partnership (MLP). The Company develops, acquires, owns or controls, and operates fee-based assets and operations within the energy midstream sector. It operates under three segments: gathering and processing north, gathering and processing south, and storage and logistics. The gathering and processing north operations provide natural gas, crude oil and produced water gathering, compression, treating, processing and disposal services to producers in the Williston Basin and Powder River Basin. The gathering and processing south operations provide natural gas gathering, compression, treating and processing and produced water gathering and disposal services to producers in the Marcellus, Barnett and Delaware basins. The storage and logistics operations provide NGL, crude oil and natural gas storage, terminal, marketing and transportation services to producers, refiners, marketers, utilities and other customers.