Petrolia is located on the Western tip of Southwestern Ontario, on the shores of Lake Huron.
Senior teams
- Petrolia
- (Ontario Hockey Association Senior, 1893-1896)
- Petrolia Squires 1969-Present
- (Continental Senior A Hockey League, 1977-1980) join SSAHL
- (Southwestern Senior A Hockey League, 1980-1986) join Seaway-Cyclone Senior B Hockey League
- (Ontario Senior AAA Hockey League, 2003-2004) league renamed MLH
- (Major League Hockey, 2004-2008) join WOAASHL
Junior teams
- Petrolia Jets 1960s-2008 (moved to Forest, Ontario)