Western Gas Equity Partners, LP is a limited partnership. The Company is formed to own approximately three types of partnership interests in Western Gas Partners, LP (WES). WES is an master limited partnership (MLP) engaged in the business of gathering, compressing, treating, processing and transporting natural gas, and gathering, stabilizing and transporting condensate, natural gas liquids (NGLs) and crude oil. WES provides these midstream services for Anadarko Petroleum Corporation (Anadarko), as well as for third-party producers and customers. Its assets and investments are located in the Rocky Mountains (Colorado, Utah and Wyoming), North-central Pennsylvania and Texas. The Bison treating facility treats and compresses gas from coal-bed methane wells in the Powder River Basin of Wyoming. MIGC, LLC receives gas from various coal-bed methane gathering systems in the Powder River Basin and the Hilight system, as well as from WBI Energy Transmission, Inc.