Dallas was handed a 26-point loss in Detroit on Thursday night and was within a basket early in the third quarter Saturday evening before the roof caved in.
Houston closed the third quarter on a 41-16 run, making 15 of 20 shots, including fuor of six from three-point range. Mobley made a pair of three-pointers during the outburst, as did Walt Williams, who scored 10 of his season-high 21 points in the quarter.
Kevin Willis had 13 points and 12 rebounds for the Rockets, who scored more than 120 points in a regulation game for the first time since March 28, 2000 against Golden State.
Dallas lost the final two games of its three-game road trip by a combined 63 points and suffered its worst loss since Nov. 17, 1997 at Portland.