The U.S. Bureau of Safety and Environmental Enforcement approved Shell’s final drilling permits, which was the last hurdle before the company can begin drilling exploration wells in the Chukchi Sea. The company can begin to drill immediately on the top sections of two wells, but cannot drill down to where the oil and gas is located until the M/V Fennica, the ice breaker carrying the required capping stack for the wells, returns from receiving repairs to its damaged hull in Portland, Oregon.