Washington Post | Oil company finds another problem in Alaska marine pipelines Wichita Eagle The company also is investigating an oil spill April 1. Workers on the Anna Platform "felt an impact" and spotted an oil sheen and gas bubbling near one of the platform's legs. Hilcorp Alaska shut down production on the platform. Based on the size of ... The Latest: Oil company closes another Alaska pipeline The Latest: Company doubts pipeline was cause of Alaska leak |