Western Gas Annual Reports Available

HOUSTON, Feb. 20, 2018

Western Gas Partners, LP ("WES") is a growth-oriented Delaware master limited partnership formed by Anadarko Petroleum Corporation to acquire, own, develop and operate midstream assets. With midstream assets located in the Rocky Mountains, North-central Pennsylvania, Texas and New Mexico, WES is engaged in the business of gathering, compressing, treating, processing and transporting natural gas; gathering, stabilizing and transporting condensate, natural gas liquids and crude oil; and gathering and disposing of produced water for Anadarko, as well as for third-party producers and customers. In addition, in its capacity as a processor and under certain types of contracts, WES also buys and sells gas, NGLs or condensate.

Western Gas Equity Partners, LP ("WGP") is a Delaware master limited partnership formed by Anadarko Petroleum Corporation to own the following types of interests in WES: (i) the general partner interest and all of the incentive distribution rights in WES, both owned through WGP's 100% ownership of WES's general partner, and (ii) a significant limited partner interest in WES.

For more information about Western Gas Partners, LP, Western Gas Equity Partners, LP, and Western Gas Flash Feed updates, please visit www.westerngas.com.

Western Gas Contact
Jonathon E. VandenBrand
Director, Investor Relations
jon.vandenbrand@anadarko.com
832.636.6000