Share: The Colonial Pipeline Co. said Saturday that it has returned its service to normal operations. What Happened: The Colonial Pipeline Co. announced on Twitter that it had returned to normal operations days after it restarted its pipeline following last week's ransomware attack. Gasoline shortages along the U.S. East Coast have begun to ease slightly as the company starts delivering "millions of gallons per hour," and ships and trucks have been deployed to fill up dry storage tanks. The company had halted all pipeline operations after learning about the cyberattack. The six-day pipeline shutdown triggered widespread panic-buying by U.S. motorists that left filling stations across the U.S. Southeast out of gas.