Kevin Durant scored 36 points, Russell Westbrook added 23 points and 13 assists, and Serge Ibaka, despite early foul trouble, had 20 points for the Thunder in a game that neither team ever led by double digits.
The Thunder have won two straight since getting blown out by 17 points in Game 1 at home.
Blake Griffin scored 34 points, and Chris Paul added 21 points and 16 assists for the Clippers, who saw their four-point lead disappear for good early in the fourth quarter. Sixth Man of the Year Jamal Crawford added 20 points.