JUNEAU, Alaska (AP) — The U.S. Interior Department has laid out a timeline for completion of a new environmental review surrounding leases in the Arctic waters off Alaska.

A federal appeals court panel earlier this year sided with environmental groups that claimed the government had conducted a flawed review before selling $2.7 billion in oil and gas leases in the Chukchi Sea in 2008. The panel found the environmental assessment for the sale was based on minimal development.