Wyoming offered Phillip Mills, a 6-foot-3, 215-pound safety from Menifee, California, on March 7.
He also holds offers from Washington State, Boise State, San Diego State and Hawaii.
Rivals, 247 Sports and Scout rank Mills as a three-star recruit.
Mills verbally committed to Boise State on May 15.
Click here to view the entire 2018 Wyoming football recruiting tracker.