Western Gas Partners, LP Announces Filing of Form 10-Q for Period Ended March 31, 2008

Business Wire, June 13, 2008

HOUSTON -- Western Gas Partners, LP (NYSE:WES) today announced that it has filed a Form 10-Q with the Securities and Exchange Commission ("SEC") on behalf of its predecessor entity (the "Predecessor") for the three-month period ended March 31, 2008. The Predecessor is comprised of Anadarko Gathering Company LLC, Pinnacle Gas Treating LLC, and MIGC, LLC, each of which was contributed to Western Gas Partners on May 14, 2008 in connection with the closing of its initial public offering of common units representing limited partner interests. Western Gas Partners and each of the entities comprising the Predecessor are indirect subsidiaries of Anadarko Petroleum Corporation (NYSE:APC).

The combined financial statements of the Predecessor have been prepared in accordance with generally accepted accounting principles on the basis of Anadarko's historical ownership of these entities and therefore are not necessarily indicative of the actual results of operations that would have occurred if Western Gas Partners had owned and operated the assets during the periods reported.

The Form 10-Q should be read in conjunction with the Form S-1 registration statement, as amended, which Western Gas Partners filed with the SEC on April 25, 2008.

This news release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Western Gas Partners believes that its expectations are based on reasonable assumptions. No assurance, however, can be given that such expectations will prove to have been correct. A number of factors could cause actual results to differ materially from the projections, anticipated results or other expectations expressed in this news release. See "Risk Factors" in the Form S-1 registration statement filed with the Securities and Exchange Commission by Western Gas Partners. Western Gas Partners undertakes no duty to publicly update these statements except as required by law.