Becuase oil refuses to drill itself.
One is called an oil drill.
Because oil is in the crust, scientists never drilled to the mantle so far because it is too deep for them.
Venango Rigs
No, It was Edwin Drake.
Because it's there. If there are oil reserves in a country you drill for them.
Drill for oil
to extract the oil out of the ground
An oil platform with an industrial drill.
It is the easiest way to find oil deposits.
NO
Yes.
The ability to drill oil has made the American economy and infrastructure what it is today. Everything that moves, seemingly is powered ultimately by oil.
An oil rig
Becuase oil refuses to drill itself.
One is called an oil drill.
Oil Well/Drill/Rig?