Oil companies have unused leases with up to 4.8 million barrels of oil

From the website of Congressman Nick Rahall (D-WV), chair of the House Committee on Natural Resources:

In an effort to compel oil and gas companies to produce on the 68 million acres of federal lands, both onshore and offshore, that are leased but sitting idle, House Natural Resources Committee Chairman Nick J. Rahall (D-WV) today introduced legislation that gives Big Oil one option — either "use it or lose it." [...]

The Responsible Federal Oil and Gas Lease Act of 2008 (H.R. 6251) is a direct response to the facts outlined in the recent House Natural Resources Committee Majority Staff report, "The Truth About America's Energy: Big Oil Stockpiles Supplies and Pockets Profits," that illustrate how energy companies are not using the federal lands and waters that are already open to drilling. [...]

The 68 million acres of leased but inactive federal land have the potential to produce an additional 4.8 million barrels of oil and 44.7 billion cubic feet of natural gas each day. This would nearly double total U.S. oil production, and increase natural gas production by 75 percent. It would also cut U.S. oil imports by more than one-third, reducing America's dependency on foreign oil.