You just need to use cowboy approach to "mount" yourself onto the oil tank.. lol

Funny thing, oil tank looks like it's been there forever, that panel does look *THAT* old though, either does the wiring coming out of it, i'd guess mid to late 80's for the panel and like, original to the house oil tank.. so one can only guess it was an un-inspected subpanel that was added later.. and the mains is somewhere else