Marathon Spark Platform; Upper Cook Inlet, Alaska

Upper Cook Inlet, Alaska | 1988-Nov-14

Initial Notification: On November 14, 1988, a water well off the Marathon Oil Company Spark platform accidentally communicated with an oil reservoir, releasing approximately 20 barrels of Cook Inlet crude into Upper Cook Inlet, Alaska. A snow storm and poor visibility prevented the U.S. Coast Guard from monitoring the oil slick until that afternoon. USCG district 17.