Question

What is crude oil? How is it extracted?

Answer 1

YAAR KITNE BAAR POOCHE GA

Answer 2

Other instruments such as gravimeters and magnetometers are also used in the search for petroleum. Extracting crude oil normally starts with drilling wells into an underground reservoir. When an oil well has been tapped, a geologist (known on the rig as the "mud logger") will note its presence.