X0306 4 2013-05-22 false 0001038357 PIONEER NATURAL RESOURCES CO PXD 0001121919 DEALY RICHARD P 5205 N. O'CONNOR BLVD., SUITE 200 IRVING TX 75039 false true false false EVP & CFO Common Stock 310 I 401(k) Common Stock 2013-05-22 4 M false 10000 15.62 A 189170 D Common Stock 2013-05-22 4 S false 10000 144.0006 D 179170 D Non-Qualified Stock Option (right to buy) 15.62 2013-05-22 4 M false 10000 0 D 2012-02-18 2019-02-18 Common Stock 10000 10368 D Consists of shares beneficially owned as a result of reporting person's ownership of units in the Pioneer Natural Resources USA, Inc. 401(k) This transaction was executed in multiple trades at prices ranging from $144.00 to $144.0012. The price reported above reflects the weighted average sale price. The reporting person will provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. The reporting person's sale of common stock of Pioneer Natural Resources Company (PXD) reported herein was matchable under Section 16(b) of the Securities Exchange Act of 1934, to the extent of 27 shares,with the reporting person's purchase of 27 shares of PXD common stock at a price of $131.31 on February 14, 2013. The reporting person has agreed to pay to PXD, upon settlement of sale, $342.66, representing the full amount of the profit realized in connection with the short-swing transaction, less transaction costs. Mark H. Kleinman, Attorney-in-Fact For Richard P. Dealy 2013-05-23