Click on the map to get an interactive state map.
Other Available Maps:Active Leases (2004) Cumulative Lease Activity Since 1982 Offered Since 1982 (Not Leased) Leased Since 1982 (Open & Closed) Produced O&G Since 1982
Source: EWG analysis of leasing and drilling records in 12 western states, contained in the Bureau of Land Management's Land and Mineral Records 2000 database, acquired by EWG May 15 2004.
