He was named a Second Team All-Star and played in five NHL All-Star Games. His best years were as part of the "MPH" (pun on 'miles per hour' using each player's last initials) line with centre Pit Martin and right wing Jim Pappin. The line was considered one of the better units in the NHL in the early to mid-1970s. He recorded seasons of 40, 30, 39 and 29 goals from 1971 through 1974. His best season was in 1973 when he recorded 39 goals and 51 assists for 90 points. He was instrumental in Chicago's appearance in the Stanley Cup Finals that season. Hull led the team with 9 goals and 15 assists for 24 points, finishing second in playoff scoring that season.