oil well

When the tube heats up, it creates steam that can be injected into the oil well.

From the station she could see half a dozen one-story shacks and, beyond, the outline of oil well derricks.

In these systems, the oil well is generally located in a "secondary" bottom of the crank case.

From his description, we thought his oil well was an honest-to-goodness well, and we sold a lot of stock for him.

The surreptitious pictures of the oil well were also recovered and destroyed.

And this camera was pointed directly at the oil well and at the Comet players.