The break in an oil pipeline that flooded part of Mayflower, Arkansas, with tar sands crude is far larger than originally believed. Arkansas Attorney General Dustin McDaniel said the ExxonMobil pipeline had suffered a nearly two-foot-long and two-inch-wide break when it leaked thousands of barrels of oil into a residential area. McDaniel has subpoenaed records on the 65-year-old Pegasus pipeline as part of an investigation into the spill.