Ibaka, 22, isn't playing basketball this season because he is too old to compete at the junior college level. He averaged 14 points and 9.8 rebounds per game last year while playing for Northeastern Oklahoma A&M.
Ibaka is studying at Allen Community College in Kansas this year. He must receive his associate degree before he is academically eligible to play for the Cowboys. It hasn't yet been determined if Ibaka will have two or three years of college eligibility.
Jawun Evans, a highly-touted guard, also signed a letter of intent for Oklahoma State on Wednesday. Evans had verbally committed to the Cowboys in October.
- Dan Gartland