Western Gas Partners Announces Earnings Release Date

Business Wire, August 6, 2008

HOUSTON -- Western Gas Partners, LP (NYSE:WES) plans to report its second-quarter 2008 financial results after the market closes on Tuesday, August 12, 2008. Management will host a conference call on Wednesday, August 13, 2008, at 9 a.m. CDT (10 a.m. EDT) to discuss the quarterly results.

The full text of the release will be available on the company's Web site at www.westerngas.com. To access the live audio webcast, please visit the investor relations section of the company's Web site, or participate via telephone by dialing 1-888-679-8033, participant code 66293481. Please call in ten minutes prior to the scheduled start time. A replay of the call will be available on the Web site for two weeks following the conference call.

Western Gas Partners, LP is a growth-oriented Delaware limited partnership formed by Anadarko Petroleum Corporation (NYSE:APC) to own, operate, acquire and develop midstream energy assets. With midstream assets in East and West Texas, the Rocky Mountains and the Mid-Continent, the partnership is engaged in the business of gathering, compressing, treating and transporting natural gas for Anadarko and other producers and customers. For more information about Western Gas Partners, please visit www.westerngas.com.