1969-06-27 Minnesota Blues (Oil Well) Information
According to Duncan Watson's Bootleg database the Oct 19, 1968 date is not correct.
Title from a mis-pronounciation of Mess O' Blues (last track). Track sources are:
Tracks 1-6 London Playhouse Theatre 1969-06-27
Tracks 7-11 London Paris Theatre 1971-04-01