tankage

nouns

the quantity contained in (or the capacity of) a tank or tanks

tankage

is a type of (narrower)

an estimated quantity

the charge for storing something in tanks

tankage

is a type of (narrower)

the price charged for some article or service

"the admission charge"

the act of storing in tanks

tankage

is derived from

is a type of (narrower)

the commercial enterprise of storing goods and materials