British Petroleum (BP) began closing units Monday at its 260,000 barrel per day (bpd) Los Angeles-area refinery in Carson, California as part of a planned overhaul of several units including a crude-oil unit, state and local agencies reported. Prices were unchanged in Los Angeles refined products markets, traders said, because refiners were well-supplied. In addition to the crude unit, a coking unit, a gasoil hydrotreater, and other units at the refinery will be overhauled over 30 days. A refinery crude unit initially refines the oil. A coker increases the amount of refinable material in a barrel of crude. A gasoil hydrotreater uses hydrogen to reduce sulfur in the feedstock going to a gasoline-producing catalytic cracking unit.
