Spangler played in 22 games and averaged 6.6 minutes per game.
He netted 2.5 points per game and boasted a team leading 56.1 percent field goal percentage, while also bringing down 2.4 rebounds per contest.
His best performance came on the biggest stage, against future Big 12 Conference mate West Virginia in the NCAA Tournament, when he logged 21 minutes, snatched eight rebounds and added four points.
The 6-foot-8, 232-pound former Oklahoma Gatorade Basketball Player of the Year and 2011 Parade All-American will have to sit out the upcoming season due to NCAA transfer rules.
Not only did Kruger land Spangler, though, but he also received a verbal from JUCO center D.J. Bennett.
Bennett is transferring in from Indian Hills, where he scored 7.2 points per game and hauled in 4.6 boards per contest.
He also recorded 1.7 blocks per game and shot 67 percent from the field as a sophomore.
The battle for Bennett came down to OU and Arkansas, and in the end, the Sooners won out.