Siakam was 13 of 23 from the floor. Johnathon Wilkins and Ian Baker had 12 points apiece for New Mexico State (7-5). The Aggies, who hit a scorching 11 of 19 from beyond the arc in their 73-53 win over UTEP on Saturday, hit just 2 of 10 from long range on Monday night.
Oral Roberts jumped out to a 10-3 lead and was up 17-16 midway through the first half. Siakam scored nine straight points and New Mexico State took a 34-33 lead into intermission and never trailed again.