Alaska Dispatch News | Oil no longer leaking from Cook Inlet pipeline, but scope and cause of spill still unknown Alaska Dispatch News Workers on Hilcorp's Anna platform, foreground, discovered a sheen of oil at about 11:20 a.m. Saturday after they felt a violent shudder to the platform. The platform is about 45 miles southwest of Anchorage near the village of Tyonek, on the west side ... Oil leak discovered by workers in Alaska's Cook Inlet Amount leaked from Cook Inlet oil pipeline remains unknown Alaska officials report oil leak in beluga whale habitat |