<b>Motiva</b>, on September 26, started 40 days of planned maintenance on the 90,000-barrel-per-day (BBL/d) Vacuum Pipe Still (VPS) 2, 40,000-BBL/d Vacuum Tower 2 and MPU 3 (N-Methyl-Pyrrolidone) units at its 640,000-BBL/d refinery in Port Arthur, Texas.<Br><br>