O'Neil joined the Aggie men's basketball staff in the fall of 2018 after a successful college career at Dodge City Community College and Central Missouri.
A four-year letterman at Scott City High School in Kansas, O'Neil was a two-time All-State honoree while helping his team to three conference championships. He also lettered in football and baseball, earning to All-State honors as both a quarterback and outfielder.
He started his collegiate career at Dodge City CC, helping his team to a Region VI runner-up finish as a sophomore; he averaged 3.5 points, 4.3 assists, and 2.9 rebounds in 30 starts. As a freshman, O'Neil scored 5.4 points per game with an average of 3.4 rebounds and 3.0 assists.
At Central Missouri, he played in 49 games with eight starts, averaging 1.9 points, 1.5 assists, and 1.6 rebounds per contest. Following his senior year, O'Neil served as a volunteer student assistant coach for the Mules, assisting in the day-to-day coaching responsibilities while helping the team go 20-10.
