FILE - In this April 24, 2015 file photo, pumpjacks work in a field in the Permian Basin near Lovington, N.M. Environmentalists say U.S. land managers violated environmental laws and their own regulations when issuing dozens of leases to drill in one of the nation's busiest oilfields. WildEarth Guardians filed a lawsuit Monday, June 3, 2019 in U.S. District Court, claiming the oil boom in southeastern New Mexico is a threat to Carlsbad Caverns National Park and the surrounding area's cave systems and desert slopes.(AP Photo/Charlie Riedel, File)
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