Motiva Enterprises on June 6, returned the 110,000-barrel-per-day (BBL/d) Delayed Coker 2 (DCU-2) at its 600,000-BBL/d Port Arthur, Texas, refinery, back to normal rates after shutting down one of three furnace stacks on June 3. Separately, the hydrogen unit restarted on June 6 after it shut down on May 17.