Harrison Barnes scored 24 points, Dennis Smith Jr. got 11 of his 19 points in the final 1:39 and Dallas beat Oklahoma City to close out 2017 with its season-best fourth straight win.
Dirk Nowitzki added 13 points for Dallas, which had lost four straight in Oklahoma City and seven of nine overall against the Thunder.
Dallas won despite Oklahoma City's Russell Westbrook recording his 12th triple-double of the season with 38 points, 15 rebounds and 11 assists. The Thunder had been 11-3 in December before consecutive home losses to Milwaukee and Dallas to end the month.
Paul George scored 25 points and Carmelo Anthony had 21 for Oklahoma City, combining to go 8 of 14 from...