He made his debut in the NHL during the 1984–1985 season with the Blues, playing in 4 games. Benning finally got the chance to have a full-time job in the NHL during the 1986–1987 season.
Benning's entry into the NHL marked the beginning of his professional hockey journey during the 1984-85 season with the Blues, playing in four games. He eventually secured a full-time position in the league for the 1986-87 season, demonstrating his growth and development as a player.