About 6,300 gallons of crude oil spilled this morning at the Shell Puget Sound Refinery in Anacortes.
Shell spokeswoman Destin Singleton said the leak was entirely contained to the site. A Coast Guard flyover confirmed that no oil spilled into local waters, said Lisa Copeland, spokeswoman with the state Department of Ecology.
Copeland said the refinery was transferring crude oil from a storage tank to a pipeline when a hose burst. The company has begun cleaning up the spill.