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.

The Citgo Corpus Christi, Texas refinery crude and vacuum unit was shut down early Tuesday for a turnaround, according to a report filed with environmental regulators.

A power outage at a steam plant at the Royal Dutch Shell (RDSA) Deer Park complex in Texas has disrupted production at the oil refinery, the company said Monday morning. The refinery won't achieve normal rates for several days, a spokeswoman said.

BP PLC (BP) Texas City, Texas refinery's ultracracker hit a snag Monday, according to a state environmental filing.

Valero Energy Corp. (VLO) said Monday morning that the 18,000-barrel-a-day hydrocracker at its Delaware City, Del., refinery is restarting.

Over the weekend, Tesoro (TSO) began 39 days of turnaround maintenance hydrocracker and reformer at its Golden Eagle refinery in Martinez, Calif. A turnaround of similar length will occur in the fourth quarter at its Wilmington, Calif., refinery, the company said on May 7.

On Saturday, ConocoPhillips (COP) Sweeny, Texas refinery restarted a process unit, according to an environmental filing. The report does not specify which unit restarted but it does mention the restart caused the coker to flare.

On Friday, BP PLC (BP) Texas City refinery experienced at upset at its ultraformer No. 4, according to a state environmental filing.

On Friday, LyondellBasell started up a depropanizer tower at its fluid catalytic cracking unit at the 270,600-barrel-a-day Houston refinery, according to a report filed with state environmental regulators.

Irving Oil expects unplanned work at a process unit, identified as the FCCU by traders doing business with the Canadian refiner, to conclude early in the week starting May 10. The unit was shut for repairs on May 6.

Shell Oil Corp.'s (RDSB) Anancortes, Washington, refinery was at planned rates and has lifted the force majeure on crude oil receipts to the refinery in place since April 23 following a plant-wide shutdown owing to a power failure.

An FCCU at ExxonMobil's (XOM) Baton Rouge, La., refinery remained shuttered on May 8 after a leak in an expansion joint sent nine workers to area hospitals for evaluation for carbon monoxide exposure. They were released to work. No estimate on FCCU restart.

Alon USA (ALJ) said a brief power interruption on May 7 at its Big Spring, Texas refinery caused emissions at a sulfur recovery unit, an FCCU and crude flare. The report did not say whether the event had an impact on operations.

Alon USA's naphtha hydrotreater at its Paramount, Calif., refinery will take 10 weeks to restart following an April malfunction, the company said on May 7.

Total USA (TOT) on May 7 shut unit 837 at its Port Arthur, Texas refinery for two weeks of maintenance. The refinery also restarted unit 813 on May 7. Both units were only identified by number.

Delek US (DK) said it will on May 7 attempt to restart the fluid catalytic cracking unit at its Tyler, Texas, refinery after a failed first try.

Shell will perform turnaround maintenance at a crude unit and coker unit at its Martinez, Calif., refinery from July 10 to Aug. 15, refiners and traders doing business with Shell said on May 6.

Western Refining (WNR) will shut its El Paso, Texas, refinery for 10 days in June, the company said on May 6.

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

 
 
Operator   Refinery    Capacity   Description                  Restart 
                       (in 000s 
                        bbl/day) 
 
UNPLANNED 
 
CANADA 
 
Irving     Saint John   300.0   Unplaned work at FCCU seen       May 
                                concluding early in week         10-15 
                                starting May 10. Unit shut 
                                May 6. 
 
EAST COAST 
 
Valero     Delaware     210.0   Crude Unit restarted May 5.      May 5 
           City, DE             FCCU restarted the Co. said on   Apr 28 
                                May 4. Other units will be re- 
                                started over the next few days. 
                                The entire refinery was shuttered 
                                on Mar. 4 for economic reasons 
                                following extended maintenance 
                                at the coker unit, which was 
                                taken out of service on Feb. 
                                15. 
 
CARIBBEAN 
 
 
GULF COAST 
 
Alon       Big Spring     67.0  Brief power snag on              n/a 
           TX                   May 7 causes emissions 
                                at a sulfur recovery 
                                unit, FCCU and crude 
                                flare. 
 
BP         Texas City    467.7  Hit snag with ultraformer 
           Tx                   on May 8. Hit snag with 
                                ultracracker May 10 
 
COP        Sweeny        247.0  Restarted Process Unit 
                                May 9 
 
Delek US   Tyler, TX     60.0   A 2nd attempt to restart         May 7 
                                the FCCU will be made on 
                                May 7. 
                                Refinery will restart May        May 5 
                                5 following fatal Nov. 20 
                                fire at sat. gas unit. 
 
Exxon      Baton Rouge   503.0  FCCU remains shut on May 8       n/a 
Mobil      LA                   after leak in an expansion 
                                joint sends 9 workers to 
                                area hospitals for eval. 
 
Shell      Deer Park    329.8   Power outage impacts production 
           Tx                   May 10, expected to last several days. 
 
Total      Port Arthur   232.0  Unit 837 was shut on May 7       May 21 
           TX                   for two weeks of maintenance. 
                                Restarted 813. 
                                The units were only identified 
                                by number. 
 
Valero     Port Arthur   325.0  FCCU at reduced rates since      n/a 
           TX                   mid-Dec. for economic rea- 
                                sons. 
 
 
MIDWEST 
 
ROCKY MOUNTAINS 
 
Sinclair   Sinclair,      66.0  Refinery ops at 50%              n/a 
           WY                   after March fire. 
 
 
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. 
 
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. 
 
PetroStar  Valdez, AK    48.0   Refinery shut due to Dec.        n/a 
                                28 fire. 
 
Shell      Anacortes    145.0   Refinery at normal operating     May 5 
                                rates on May 5. Force majeure 
                                on crude oil receipts lifted 
                                following plantwide shutdown 
                                due to Apr. 23 power failure, 
                                Co. said on May 8. 
 
 
PLANNED 
 
CANADA 
 
North      Newfound-     115.0  Plantwide shutdown will begin    Early 
Atlantic   land                 first week of April for 21       May 
                                days of planned maintenance. 
                                Upgrade work at hydrotreater 
                                will take an additional 14 
                                days. 
 
 
EAST COAST 
 
Sunoco     Philadelphia  340.0  Point Breeze crude unit and     n/a 
           PA                   FCCU shut April 20 due to 
                                market conditions. Units will 
                                be restarted as soon as it 
                                makes sense to do so, the Co. 
                                said on Apr. 23 
                                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  80,000-b/d FCCU operating        n/a 
           DE                   at reduced rate for eco- 
                                nomic reasons, Co. said on 
                                Dec. 16. 
                                FCCU will be shut in Sept.       Sep 
                                for 42-days maintenance, the 
                                Co. said on Apr. 28. 
                                Hydrocracker restarted May 10. 
 
 
Valero     Paulsboro     160.0  27,000-b/d coker unit to         May 
           NJ                   shut in April for 35-days 
                                of planned work, the Co. 
                                said on Mar. 11. 
 
 
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  Crude/Vacuum Unit shut May 11   n/a 
           Tx 
 
 
Conoco     Borger, TX    152.0  20-days of maintenace starts     May 
                                May 1 at several process         21 
                                units, including a gas oil 
                                hydro-desulphurisation unit, 
                                a SCOT unit, a refomer and 
                                units 42, 43 and 45. 
 
Flint      Corpus        288.1  $250 mil. project for new        Spr 
Hills      Christi, TX          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. 
 
Total      Port Arthur   232.0  Refinery in restart mode; 18     Apr 22 
           TX                   units will be sequentially 
                                restarted starting at about 
                                5:00 a.m. CDT on Apr. 22. 
                                The process is expected to 
                                conclude on Apr. 28. The units 
                                shut due to poor economic con- 
                                ditions on Mar. 24 
 
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 starts May 1 at small-    22 
                                er of two crude units, the 
                                60,000-b/d FCCU and alky- 
                                lation unit. 
 
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  Plant-wide turnaround mainte-    June 
                                nance will begin in June for 
                                10 days, the Co. said on May 
                                6. 
 
WRB        Borger, TX    152.0  Month-long maintenance starts    May 27 
                                April 27 at FCCU No. 40 and 
                                Sulfur Recovery Unit No. 34, 
                                according to a TCEQ filing. 
 
 
MID-WEST 
 
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. 
 
                                Co. said April 14 that planed 
                                work was ongoing at the refinery. 
                                Co. did not give more specifics. 
 
Exxon      Billings       60.0  Planned maintenance at several   Apr 24 
           MT                   process units, including the 
                                FCCU, concluded last week. Work 
                                started in early Apr, the Co. on 
                                Apr 27. 
 
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 24 
           WA                   down for maintenance on Apr. 
                                15. 
 
Conoco     Rodeo, CA    153.5   Work continues at hydro-         n/a 
                                cracker and reformer units. 
                                45 days of planned work was 
                                expected to conclude by Apr. 
                                15. No restart estimate. 
 
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     Kenai, AK     72.0   Refinery to restart first        Early 
                                week of May after 30-days        May 
                                of planned maintenance, 
                                the Co. said on Apr 27. 
 
Tesoro    Golden Eagle   166.0  Hydrocracker/reformer           Late June. 
          Martinez Ca           in 39-day turnaround 
                                May 8-10