"The Reverend Natural Light" wrote in message
...

That's a normal way to install an underground tank. What isn't normal
is to need to know how much oil is in the tank. Why do you care?
Most of the time you go on an automatic fill program and let the oil
company worry about it.

Some of us like to know what we have and buy oil on our own terms and times
that we choose. IMO, wanting to know how much oil you have is very normal.