The Latest on the crude oil leaking after a train derailment in northwest Iowa (all times local):: DOON, Iowa (AP) - The Latest on the crude oil leaking after a train derailment in northwest Iowa (all times local): A railroad official says 14 of 32 derailed oil tanker cars in the northwest corner of Iowa dumped an estimated 230,000 gallons (870,619 liters) of crude oil into floodwaters, with some making its way to nearby rivers. BNSF spokesman Andy Williams confirmed the details Saturday.