The Orioles have now agreed to terms with eight of their top 10 picks, as first-rounder Kevin Gausman and fifth-rounder Colin Poche remain unsigned. The signing deadline for 2012 Draft selections is July 13.
Kline is a right-handed pitcher from the University of Virginia with a low-90s fastball and a powerful 12-to-6 curveball.
Kline served as a reliever his first two seasons before making 15 starts and posting a 7-3 record with a 3.56 ERA in 2012. He recorded 94 strikeouts with 43 walks in 93 2/3 innings.
Walker played first base at the University of South Carolina and hit .321 with 11 home runs and 53 RBIs last season.
Price, also from South Carolina, is a right-hander who has been a closer for the majority of his career and projects to come out of the bullpen at the next level, although director of scouting Gary Rajsich said that decision is yet to be made. Price pitched to a 3.48 ERA with 94 strikeouts in 77 2/3 innings last season with South Carolina.
The impending signings, first reported by MASN, will not made official until the three players pass physicals.