Oil drilling

Oil drilling rigs (c. 1920)

Oil drilling is the commercial activity of drilling for, and exploiting subterranean petroleum or hydrocarbon resources.

For decades there has been a federal moratorium on new offshore oil drilling for much of the continental United States. In September 2008, under pressure by high oil prices and the status of drilling as a Presidential campaign issue, Congress refrained from renewing the ban and allowed it to sunset.

## References[edit]

* Congress Allows Offshore Oil Drilling Ban to Expire