The largest gasoline pipeline in the U.S. is returning to service, recovering from a cyberattack late Friday that sent pump prices surging and triggered shortages across the Eastern U.S. The Colonial Pipeline â a critical source of gasoline and diesel for the New York area and the rest of the East Coast â began to resume fuel shipments around 5 p.m. Eastern time Wednesday, the Alpharetta, Georgia-based operating company said in a statement. Itâs unclear how long it will take for supplies to come back to normal, though. U.S. Energy Secretary Jennifer Granholm said Tuesday it would take days to fully restore supplies after the restart, and Colonial warned the line may go down again from time to time while itâs in the process of restarting.