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Sue Ogrocki, Associated Press
Oklahoma City Thunder guard Russell Westbrook (0) goes up for a shot over Phoenix Suns guard Jared Dudley (3) in the first quarter of an NBA basketball game in Oklahoma City, Saturday, Dec. 31, 2011.

OKLAHOMA CITY — Russell Westbrook scored 18 points, Daequan Cook hit four 3-pointers in quick succession to help Oklahoma City pull away in the first half and the Thunder led wire to wire in a 107-97 victory over the Phoenix Suns on Saturday night.

The Thunder improved to 5-0 and remained perfect in four New Year's Eve home games that have become a tradition since the franchise moved from Seattle to Oklahoma City.

Two nights after hitting a buzzer-beating game-winner against Dallas, Kevin Durant had only 12 points in his bid to become the first player since Michael Jordan a quarter-century earlier to score at least 30 in the first five games of a season.

Hakim Warrick and rookie Markieff Morris had 15 points apiece for the Suns, who shot just 40 percent.