economic reasons. 
 
Valero      McKee, TX    170.0  Smaller of two crude units       May/ 
                                at 60,000-b/d to shut in         June 
                                May for 14 days; 55,000-b/d 
                                to shut in May for 21 days. 
 
Valero      Norco, LA    250.0  Upgrade project to build         2012 
                                a new diesel hydrotreater 
                                unit moved from 2010 to 
                                4th-quarter 2012, the Co. 
                                said on Jan. 27. 
 
Valero      Port Arthur  325.0  77,000-b/d FCCU at reduced       n/a 
            TX                  rates since mid-Dec. for 
                                economic reasons. 
 
Valero      Sunray, TX   170.0  55,000-b/d FCCU at reduced       n/a 
                                rates since mid-Dec. for 
                                economic reasons. 
 
Valero      Three Rivers  95.0  24,000-b/d FCCU at reduced       n/a 
            TX                  rates since mid-Dec. for 
                                economic reasons. 
 
 
MID-CONTINENT 
 
BP          Whiting,    410.0   Planned maintenane continues     End 
            IN                  on Mar. 16 at the smaller of     Mar 
                                3 crude units. The work began 
                                in early March and is expected   Early 
                                to conclude by the end of the    Apr 
                                month or by early April. 
 
Conoco      Billings,    61.0   On Mar. 5 the Co. delayed for    Jan. 
            MT                  one year an expansion project    2010 
                                which will increase capacity 
                                to 71,000 bbls. Construction of 
                                a new crude is now scheduled 
                                to begin in January 2010. 
 
Frontier    El Dorado    130.0  Hydrotreater in restart and      Mar. 
            KS                  expected to produce product by   28-29 
                                Mar. 28-29, the Co. said. 
                                A coker turnaround and expan-    Mid- 
                                sion project was delayed until   Aug. 
                                Mid-July, and subsequently 
                                delayed until August. 
 
Frontier    Cheyenne      52.0  12,000-b/d FCCU at planned       Mar 
            WY                  rates on Mar. 27 following two   27 
                                weeks of planned maintenance. 
                                The refinery is operating at re- 
                                duced rates for economic reasons. 
 
Marathon    Robinson     204.0  Crude unit, two coker units      n/a 
                                shut Mar. 9 for planned main- 
                                tenance; no restart timing 
                                available. 
 
Marathon    Detroit      100.0  Project to upgrade refinery      n/a 
            MI                  to process Canadian crude