X0303 4 2011-01-21 0000773910 ANADARKO PETROLEUM CORP APC 0001269019 DANIELS ROBERT P ANADARKO PETROLEUM CORPORATION 1201 LAKE ROBBINS DRIVE WOODLANDS TX 77380 1 SVP, Worldwide Exploration Common Stock 2011-01-21 4 A 0 4808 77.20 A 20512 D Common Stock 2011-01-21 4 F 0 1293 77.20 D 19219 D Common Stock 16984 I 401 (k) Plan Represents payment of award earned under the reporting person's Performance Unit Agreement for the performance period beginning January 1, 2008 and ending December 31, 2010. Since the date of the reporting person's last ownership report, he transferred 46,463 shares of APC common stock, employee stock options to purchase 94,470 shares of APC common stock and 4,681 employee restricted stock units of APC common stock to his ex-wife pursuant to a divorce decree. The reporting person no longer reports as beneficially owned any securities owned by his ex-wife. /s/ Linda Mansker by power of atty. for Robert P. Daniels 2011-01-25