Because the wells are on tribal land, Oklahoma regulators have no jurisdiction over oil- and gas-producing facilities in the region. Oklahoma Corporation Commissioner Matt Skinner told The Associated Press that the U.S. Environmental Protection Agency notified the state on Tuesday that 17 wells were ordered closed.
The 17 wells are in a 211-square mile area within Osage County, near where a magnitude 5.6 temblor struck on Saturday about 7:02 a.m. The epicenter was near Pawnee. Many people in southern and western Missouri and northwestern Arkansas said they felt it.
Meanwhile, two more earthquakes of magnitude 4.1 and 3.6 rattled northwest Oklahoma on Tuesday, in an area away from the quake on Saturday.
(Copyright 2016 The Associated Press
