The usage of the semicolon (;) is less common than the comma (,) in English in a list of choices; it's instead meant to connect two independant though closely related clauses, as so. Really the only segment that should contain the separator of 'or' is the one with the last subject, as shown here:

http://www.bartleby.com/64/C001/045.html

This is also shown here (See number two):

http://www.bartleby.com/141/strunk.html