The following table lists unplanned and planned production outages at U.S. refineries as reported by Dow Jones Newswires. The information is compiled from both official and unofficial refining sources and doesn't purport to be a comprehensive list.

Most recently, Citgo shut Monday a Shell Claus off-gas treating, or SCOT, unit at its Corpus Christi, Texas, refinery for abut six days of maintenance. Separately, FCCU No. 1, a key gasoline-making unit at the plant, was restarted Saturday following about four days of unplanned work.

Also on Saturday BP (BP) reported a brief period of flaring at FCCU No. 3 at its Texas City plant when emissions caused a relief valve to open to a safety flare stack. The status of the unit is unclear.

WRB Refining (COP, ECA) on Saturday notified state regulators of its intention to restart a gas oil hydrodesulfurization unit at its Borger, Texas, refinery; it was not clear when the unit was taken off line. However, the exact timing of the restart could be any time between June 6 and June 14 the company said. The actual start date, duration and emissions would be provided in a follow-up report.

And on Friday, a wet gas compressor tripped off-line at Exxon Mobil's (XOM) Beaumont, Texas, refinery causing emissions at a coker unit. The status of the compressor, or of the coker unit, isn't clear. Separately, repairs to fix a crack in a drum at Coker Unit No. 6 concluded last week, and the unit was back at planned rates the company said. The drum was taken out of service on May 21.

Sunoco Inc. (SUN) on June 4 shut the key gasoline-making unit in the Girard Point section of its Philadelphia refinery; the FCC unit is the larger of two at the complex. Repairs are expected to take 30 days.

On Wednesday, Sunoco said the FCCU at its Marcus Hook refinery in Pennsylvania was restarted after shutting down unplanned on May 17 following a fire at the plant's ethylene complex.

Citgo said Wednesday that operations at its Lemont, Illinois refinery were back at planned rates following the unplanned shutdown Monday of an FCCU. The unit was restarted Tuesday and the other units affected by the outage were brought back to normal operations throughout the day.

For more detailed information, search Dow Jones Newswires using the code N/REF.

 
 
Operator   Refinery    Capacity   Description                  Restart 
                       (in 000s 
                        bbl/day) 
 
UNPLANNED 
 
CANADA 
 
EAST COAST 
 
Sunoco     Marcus       178.0  FCCU restarted June 3             Jun 3 
           Hook, PA            following May 17 explosion 
                               and fire at ethylene complex. 
 
Sunoco     Phila        335.0  Girard Point 90,000-b/d           Jul 4 
           PA                  FCCU shut June 4 for 30-days 
                               work to repair metallurgical 
                               issues. 
                               Point Breeze unit restarted 
                               May 28 and Girard Point 
                               unit restarted May 27 after 
                               shutting down on May 26. The 
                               Point Breeze unit was shuttered 
                               in April for economic reasons. 
 
CARIBBEAN 
 
GULF COAST 
 
BP         Texas City    467.7  Flaring reported at FCCU         n/a 
                                No. 3 
 
 
Citgo      Corpus        156.0  FCCU No. 1 in East Plant         Jun 4 
           Christi, TX          restarted on June 4 after 
                                shutting down unplanned 
                                on June 1 due to spent 
                                catalyst problem. 
 
Exxon      Beamont, TX   315.0  Coker drum shut May 22 at        n/a 
Mobil                           Coker Unit No. 6 to repair 
                                crack. 
 
Motiva     Norco, LA     220.0  Refinery resumed normal ops      Jun 1 
                                on June 1 after restarting a 
                                catalytic reformer on May 31. 
                                The unit's shutdown the week 
                                before slightly reduced FCCU 
                                ops. 
 
Valero     Corpus        315.0  Butamer Unit No. 36 in West      May 25 
           Christi, TX          Plant Complex 6 in restart 
                                mode Monday following maintenance. 
 
 
MIDWEST 
 
ROCKY MOUNTAINS 
 
Citgo      Lemont, IL    167.0  Refinery at planned rates        Jun 2 
                                following FCCU shutdown 
                                on Monday. The unit was re- 
                                started on Tuesday and other 
                                units affected by the FCCU 
                                outage returned to normal 
                                throughout the day. 
 
Sinclair   Sinclair,      66.0  Refinery ops at 50%              n/a 
           WY                   after March fire. 
 
                                Plant has large oil 
                                product spill May 10 
 
WEST COAST 
 
Alon       Paramount,    53.0   Naphtha hydrotreater             Early 
           CA                   shut April 23 due to an          July 
                                explosion will take 10 
                                weeks to restart, the 
                                co. said on May 7. The 
                                refinery has been at re- 
                                duced rates since Apr. 23. 
 
PetroStar  Valdez, AK    48.0   Refinery shut due to Dec.        Jun/Jul 
                                28 fire; expected to re-         2010 
                                start in June/July 2010. 
 
 
PLANNED 
 
CANADA 
 
EAST COAST 
 
Sunoco     Philadelphia, 340.0  FCCU in Point Breeze section     May 28 
           PA                   in restart May 28; unit was 
                                shuttered in April for economic 
                                reasons. 
                                Reformer unit shut in Girard    n/a 
                                Point section in early Oct. 
                                for economic reasons. Shutdown 
                                to last one to six months. 
 
Valero     Delaware      210.0  Coker Unit expected to return    Jun 
                                to service by June 5-6, the      5-6 
                                Co. said on May 29. The unit 
                                was shut for maintenance in 
                                Feb. 
                                Refinery restarted end-April 
                                after shutting down for eco- 
                                nomic reasons while work was 
                                performed at the coker. 
                                FCCU will be shut in Sept.       Sep 
                                for 42-days maintenance, the 
                                Co. said on Apr. 28. The 
                                80,000-b/d FCCU has been at 
                                reduced rates for economic 
                                reasons, the Co. said on 
                                Dec. 16. 
 
 
GULF COAST 
 
Chevron    Pascagoula,    330.0 Pre-commercial heavy oil         2010 
           Miss.                conversion project delayed 
                                from 2008 to 2010 due to 
                                economic factors. 
 
Citgo      Corpus        156.0  SCOT unit shut June 8 to         Jun 14 
           Christi, Tx          remove fouling and to 
                                quench tower and exchangers. 
 
Flint      Corpus        288.1  West Plant Coking Unit in re- 
Hills      Christi, TX          start mode on June 3; unit 
                                shut June 1 for planned 
                                maintenance. 
 
                                $250 mil. project for new        Spr 
                                diesel desulfurization,          2010 
                                sulfur recovery unit to begin 
                                in Fall 2008. Construction 
                                to last 18 months. 
 
Marathon   Garyville     245.0  Project to increase crude oil    4Q 
           LA                   refining capacity by 180,000-    2009 
                                b/d 85% complete, the Co. said 
                                on Apr. 30. New units expected 
                                start up in 4th-quarter, 2009. 
 
Motiva     Port Arthur   285.0  Expansion project to increase    1st-Q 
           TX                   throughput capacity by 325,000   2012 
                                b/d, to 610,000-b/d, slowed. 
                                Completion now seen in 1st- 
                                quarter 2012, from 2010. 
 
Valero     Corpus        340.0  20,000-b/d FCCU in East          n/a 
           Christi, TX          Plant shut; West Plant 
                                50,000-b/d FCCU at reduced 
                                rates since mid-Dec. for 
                                economic reasons. 
 
Valero     McKee, TX     170.0  21-days of planned mainte-       May 
                                nanace that started on May       28 
                                1 at smaller of two crude 
                                units, the 60,000-b/d FCCU, 
                                and alkylation unit concluded; 
                                the FCCU was restarted on May 
                                28, the Co. said. 
 
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. Mainte- 
                                is planned at a hydrotreater 
                                unit, the company said on 
                                April 17; no details were 
                                given. 
 
Valero     Norco, LA            Turnaround at coker unit         1/Q 
                                delayed until the first          2010 
                                quarter of 2010 from fourth 
                                quarter 2009, the Co. said 
                                on Apr. 28. 
 
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. 
                                Plant-wide 24-day turnaround     Sep 
                                to begin in Sept., the Co. 
                                said on Apr. 28. 
 
Western    El Paso, TX   122.0  Crude unit shut May 24 week      Jun 3 
                                for 10-days maintenance. 
 
 
WRB        Borger, TX    152.0  Gas Oil Hydrodesulfurization     Jun 
                                unit will be restart some        6-14 
                                time between June 6 and 14. 
                                It is unclear when then unit 
                                was taken out of service. 
                                Planned maintenance at Unit      Jul 12 
                                29 FCCU electrostatic precipi- 
                                tators starts May 31. Work 
                                will conclude on July 12. 
 
 
MID-WEST 
 
BP         Whiting       410.0  Restart pf FCCU shut in April    2nd- 
           IN                   for Spring turnaround mainte-    Half 
                                nance delayed to 2nd-half        Jun 
                                June from mid-May. 
 
 
Frontier   El Dorado     130.0  A coker turnaround and expan-    Mid- 
           KS                   sion project was delayed until   Aug. 
                                Mid-July, and subsequently 
                                delayed until August. 
 
Valero     Memphis, TN   195.0  FCCU upgrade originally slated   2012 
                                for completion in 2009 has been 
                                shifted to 2012, the Co. said 
                                on Jan. 27. 
 
 
ROCKY MOUNTAINS 
 
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 unit is now scheduled 
                                to begin in January 2010. 
 
Frontier   Cheyenne       52.0  The refinery is operating at     n/a 
           WY                   reduced rates for economic 
                                reasons. 
 
 
WEST COAST 
 
Alon       Paramount     55.0   Hydrocracker project post- 
           CA                   poned indefinitely, the Co. 
                                said on Feb. 4 
 
BP         Ferndale     225.0   Hyrdrocracker and reformer       May 29 
           WA                   restarted May 29 from planned 
                                maintenance that began on 
                                Apr 15. 
 
Chevron    Richmond,    243.0   Hydrocracking Unit and re-       Jun 27 
           CA                   former shut May 28 for 30- 
                                days planned maintenance. 
 
Exxon      Torrance     155.0   Maintenance will begin in July   July 
Mobil                           at one of two 26,000-b/d coker 
                                units, traders said on May 22. 
 
Flint      North Pole   210.0   One of three processing          n/a 
Hills      AK                   units has been shut due 
                                to low jet fuel demand, 
                                the co. confirmed on Mar. 
                                19. 
 
Shell      Martinez     155.0   Crude Unit and Coker Unit        Aug 15 
           CA                   to shut for planned main- 
                                tenance on July 10; re- 
                                start seen Aug. 15. 
 
Tesoro     Golden Eagle   166.0 Hydrocracker/reformer            Mid 
           Martinez, CA         shut for planned mainte-         June 
                                nance May 9-10. Units to 
                                return to service by mid- 
                                June. 
 
Tesoro    Wilmington,     97.0  39-days of turnaround main- 
          CA                    tenance is planned for 
                                fourth-quarter 2009.