The fledgling league was formed by five members of the former Saskatchewan Junior Hockey League, along with the Edmonton Oil Kings and the Calgary Buffaloes.
However, the league did not receive the sanction of the Canadian Amateur Hockey Association, and was considered an "outlaw league" whose members were ineligible to compete for the Memorial Cup.
[1] The CMJHL's inaugural season featured seven teams based in Alberta and Saskatchewan and a 56-game schedule.
The Oil Kings topped the regular season standings with 34 wins; however, the Oil Kings were upset in the playoffs by the Moose Jaw Canucks, who went on to win the President's Cup, defeating the Regina Pats in the league final.
[2] Note: GP = Games played; G = Goals; A = Assists; Pts = Points; PIM = Penalties in minutes The 1966–67 WCJHL all-star game was held in Calgary, Alberta, with the Reds defeating the Whites 7–0 before a crowd of 1,000.