FILE - In this April 17, 2015 file photo, with the Olympic Mountains in the background, a small boat crosses in front of an oil drilling rig as it arrives in Port Angeles, Wash. aboard a transport ship after traveling across the Pacific. Royal Dutch Shell hopes to use the rig for exploratory drilling during the summer open-water season in the Chukchi Sea off Alaska's northwest coast, if it can get the permits. Royal Dutch Shell cleared a major hurdle Monday, May 11, 2015, when The Bureau of Ocean Energy Management approved Shell's exploration plan. However, this isn't the final step that Shell needs for Arctic drilling. (Daniella Beccaria/seattlepi.com via AP, File) MAGS OUT; NO SALES; SEATTLE TIMES OUT; TV OUT; MANDATORY CREDIT
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