He was named Big 12 Player of the Week on Monday.
"My teammates did a good job of finding me with the ball," Hield said of his performance. "Hats off to them."
The Sooners cruised to a 78-53 victory in the season opener against Southeastern Louisiana.
Hield shot 9-for-16 and had the most made 3s by an Oklahoma player since Steven Pledger hit seven on Jan. 29, 2011.
Hield played just 28 minutes and also had two assists and a steal.