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Pioneer Natural Resources Company (PXD) (“Pioneer” or the “Company”) today announced that it is commencing a public offering of 10.5 million shares of its common stock. BofA Merrill Lynch, Citigroup, Credit Suisse and J.P. Morgan are acting as joint book-running managers on the offering. The Company also expects to grant the underwriters an option for 30 days to purchase up to an additional 1.575 million shares of the Company’s common stock.

The Company expects to use the net proceeds from this offering for general corporate purposes, including continuing to actively develop its acreage position in the Spraberry/Wolfcamp play in West Texas while maintaining a strong balance sheet during the current period of low commodity prices.

The offering is being made pursuant to an effective shelf registration statement filed with the Securities and Exchange Commission (“SEC”). The offering may be made only by means of a prospectus supplement and the accompanying prospectus, copies of which may be obtained by sending a request to:

(i)

BofA Merrill Lynch, 222 Broadway, New York, NY 10038, Attn: Prospectus Department; by email atdg.prospectus_requests@baml.com, or

(ii)

Citigroup, c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717; by email atprospectus@citi.com; or Toll-Free at (800) 831-9146, or

(iii)

Credit Suisse Securities (USA) LLC, c/o Prospectus Department, One Madison Avenue, New York, NY, 10010; by email at newyork.prospectus@credit-suisse.com, or

(iv)

J.P. Morgan Securities LLC, c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717, or by email at prospectus-eq_fi@jpmchase.com.

These documents will be filed with the SEC and are available at http://www.sec.gov.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale of these securities would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

Pioneer is a large independent oil and gas exploration and production company, headquartered in Dallas, Texas, with operations in the United States.