OKLAHOMA CITY — Al Horford had 23 points and 12 rebounds, Lou Williams added 10 of his 19 points during Atlanta's decisive fourth-quarter surge and the Hawks beat the Oklahoma City Thunder 104-95 on Sunday night. Williams hit a 3-pointer, a 24-foot jumper and converted a three-point play off a driving scoop in the lane during a 12-4 push midway through the fourth quarter that put the Hawks in front to stay. Williams' two free throws made it 91-84 with 4:44 to play, and Atlanta held off a final charge by Oklahoma City.