ctile gismu

x1 is a quantity of petroleum/oil from source x2.

See also grasu.

In notes:

x1 is a quantity of/is made of/contains grease/fat/oil from source x2.
x1 is an oil lamp using petroleum-based products, illuminating x2 with light x1.
x1 is a quantity of natural gas, a mixture of methane with smaller amounts of ethane, propane, butane, other gaseous hydrocarbons and petroleum deposits