Pure lack of initiative and stuck in a retail mentality.
There are 10's of thousands of privatly owned wells, and countless trucks and shipping hubs.
It is EXACTLY the same situation with, oh, lets pick, wheat, and a "bushel" whatever the fuck that is, I wanted one, and got one, and corn by the ton, and fuel oil, and coal by the ton, loaded onto my 1 ton truck, drive up to the fucking place
and get some.......they dont realy want to sell small quantities....but they will.....mainly they are worried about civilians getting hurt in what are purely industrial environments, but standing y ground and bieng patient and respectfull has gotten me through many gates, loaded, and gone.......often it's the secretary/receptionist who decides, and pulls out a cash slip, then.the rest just happens, sometimes it's the plant manager, who does a hand wave and points after determining that it will be ok, but all in all, it's the same for everything, just find the person
who can say yes and ask.