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.

Valero Energy Corp. (VLO) said Friday that its Aruba refinery is nearing planned rates after being offline for roughly 18 months. The company also announced turnaround plans at six of its refineries in the first and second quarters of 2011 on Wednesday.

The Hovensa refinery, jointly owned by Hess Corp. (HES) and Venezeula's national oil company Petroleos de Venezuela S.A., in St. Croix announced Wednesday that it is permanently reducing crude oil throughput by shutting certain older units in the first quarter in an effort to improve performance in tough economic conditions.

Tesoro Corp. (TSO) said that a process unit at its Los Angeles-area oil refinery was restarted Thursday, two days after it experienced an upset. The restart of the unidentified unit began Wednesday. The incident did had no impact on production.

Citgo Petroleum Corp. said Wednesday its Corpus Christi, Texas, refinery has started a new ultra low sulfur diesel unit, allowing the company to produce this fuel entirely in house.

Exxon Mobil Corp. (XOM) plans to shut a hydrocracker for maintenance at its Torrance, Calif., oil refinery on Feb. 7-28, West Coast traders and marketers said Tusday. The company said that extra pressure at a tank caused the unplanned flaring activity at its Torrance, Calif., oil refinery Tuesday morning.

Exxon said Tuesday that while a key gasoline-making unit at its joint-venture oil refinery in Chalmette, La., was taken out of service Saturday for maintenance, the rest of the refinery is operational

A crude unit at BP PLC's (BP) oil refinery in Texas City, Texas, is going into turnaround maintenance, while similar work continues at a key gasoline-making unit, a person familiar with operations at the plant said Tuesday.

A key gasoline-making unit at Pasadena Refining Systems Inc.'s oil refinery in Pasadena, Texas, will be taken out of service on Feb. 28 for 44 days of planned turnaround maintenance, the company said in a statement Tuesday.

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 Resid FCCU shut for unplan- Dec Oil New Brunswick ned work, the Co. said on 4/5 Dec. 1. Restart seen within 72 hours. CARIBBEAN Hovensa St. Croix 500.0 FCC shut for unplanned repairs Dec. 9 that could last 10-14 days, a person familiar with the refinery's operations said. EAST COAST GULF COAST Alon Big Springs, 67.0 Emissions event reported Dec. 1 TX due to maintenance at high stage compressor at PDA unit. Chevron Pascagoula, 333.0 Leak of less than 3 gals. of MS benzene reported owing to equipment failure on Dec. 4. No further details available. Planned FCCU maintenance ad- Dec vanced from January to Nov. 20/30 30 due to mechanical issues. Repairs will take 20-30 days. Exxon Beaumont, TX 344.5 Work to repair leaking valve Mobil at coker gas plant got under- way on Nov. 29. No impact on production, the Co. said. Lyondell Houston, TX 270.6 Co. reports emissions event Basell related to valve issue at a hydrodesulfurization unit on Dec. 4. Emissions also reported on Nov 29 due to operational upset; FCCU and wet gas scrubber stack listed as sources of the release. Conoco Sweeny, TX 247.0 Air compressor problem resulted in benzene emissions Dec. 5, a Dec. 6 filing stated. Flint Corpus 300.0 Sulfur recovery unit No. 2 tripped Hills Christi, TX offline on Jan. 15; the cause is under investigation. Valero Port Arthur 287.0 No impact to production from flaring TX at gulfining unit Jan. 23, Co. said Jan. 25. Tesoro Wilmington 97.0 The Los Angeles Area plant completed the CA restart of unnamed process unit Jan 27 after an upset 2 days earlier. MIDWEST Tesoro Mandan, ND 58.0 Experienced a fire at alkylation unit that lasted 2 hours on Jan. 19. Plant at reduced rates but unclear what impact fire may have on product supply, Co. said Jan. 19. Exxon Joliet, IL 238.0 Production was minimally affected Mobil by process unit boiler upset on Dec. 1; all customer needs will be met, the Co. said on Dec. 2. Marathon Robinson, IL 206.0 Trade sources say crude unit Oct 22- shut around Oct 16-17 for 25 maintenance. Restart seen by Oct. 22 or 25. Co. wouldn't comment. Citgo Lemont, IL 167.0 Hydrotreater resumed operations after going off line for several hours Dec. 8; there was no impact to production, a Co. official said Dec. 9. Valero Memphis, TN 195.0 FCCU, shut Nov. 29 for un- n/a planned maintenance, is at planned rates, Co. said Dec. 8. No impact to production from flaring on Dec. 14, Co. said Dec. 14. Flaring was caused by equipment failure. ROCKIES WEST COAST Tesoro Golden Eagle 166.0 Plant to return to planned through- Martinez, CA put rates within several days after a power outage Dec. 9, Co. said Dec. 13. Outage was caused by sudden voltage drop and brief electrical fire at an on-site electrical switching station. Exxon Torrance 149.5 A process unit was shut on Nov. n/a Mobil CA 26 owing to a mechanical problem discovered during its restart after Monday's power outage. All Nov 29 other units affected by the outage are at normal rates but one that is in restart mode, the co. said on Nov. 29. Leak at unknown process unit Jan. 20, but did not impact production. Plant to shut a hyrocracker Feb. 7-20 for maintenance, West Coast traders and marketers said Jan. 25. Tesoro Anacortes 120.0 A process unit upset at an unnamed WA process unit on Dec. 6 would not impact throughput and customer needs will be met, Co. said Dec. 7. PLANNED CANADA Shell Montreal 130.0 The refinery will be converted Quebec into a terminal. CARIBBEAN Valero Aruba 235.0 Plant nearing planned rates, the company said on Jan. 28. The plant, shut in July 2009 on poor economics, will use LNG to reduce utility costs. CARIBBEAN Hovensa St. Croix 500.0 Shutting smaller, older process units on west side of plant, which will reduce crude distillation to 350,000-b/d, Co. said Jan. 26. Coker, FCCU will not be affected. EAST COAST Sunoco Westville 145.0 Idling all Eagle Point refin- n/a NJ ing operations indefinitely due to poor economics, co. said Oct. 6, 2009. Valero Delaware 210.0 PBF Energy has closed Apr deal to buy plant. Petroplus 2011 said May 5 the plant would be restarted in 2Q of 2011. Valero Paulsboro, NJ 185.0 Agreed to sell refinery for $360 million to PBF Energy, Co. said Sept. 27. Deal is

expected to close in Q4. Western Yorktown 64.5 The refinery will close in Sept VA September 2010 for economic reasons. Terminal operations will continue. GULF COAST BP Texas City 437.0 Ultracracker set to restart TX Dec. 8, emissions to last four days. A crude unit is going into turnaround maintenance as similar work is being done on FCCU No. 1, which was taken out of service on Jan. 12, a person familiar with ops said Jan. 25. Chevron Pascagoula 330.0 Pre-commercial heavy oil 2010 Miss. conversion project delayed from 2008 to 2010 due to economic factors. Expansion project including the replacement of two 30-year- old reformers and construction of a 55,000 b/d continuous catalytic reformer platformer unit to be completed by late summer, Industrial Info Resources said July 6. A premium base-oil facility was also being planned, co. said in late Feb. Exxon Baytown, TX 560.6 New ULSD Units commissioned, Co. said Oct 21. ULSD supply will increase by over 3 million gallons from Baytown & Baton Rouge. Exxon Beaumont, TX 344.5 Finished scheduled turnaround maintenance, the company said on Dec. 20. Units involoved included hydrocracker and catalytic reformer. Shell Deer Park 327.0 Maintenance activities are TX underway, Co. said Jan. 18, but the duration and type of work were not disclosed. Exxon Chalmette 120.0 Crude throughput will be re- N/A LA duced to 90,000-b/d as redun- dant units and about 70 jobs are taken out of service and cut for economic reason. These have begun to take place, the co. said Aug 26. $250 mln project for new Spring 2010 diesel desulfurization, sulfur recovery unit to begin in Fall 2008. Construction to last 18 months. FCCU was takin out of service on Jan. 22, but the rest of refinery is operational. Motiva Port Arthur 285.0 Expansion project to increase 1Q throughput capacity by 325,000 2012 b/d, to 610,000-b/d, slowed. Completion now seen 1Q 2012, from 2010. Valero Houston, TX 145.0 FCC restarted for a planned repair on a compressor, Co. said Dec. 8. The outage is expected to be short. To perform work at 90,000-b/d crude unit beginning in Feb, lasting 24 days. Valero Corpus 340.0 West Plant 50,000-b/d FCCU at Christi, TX reduced rates since mid-Dec for economic reasons. Hydrocracker down as of Dec. 17 after restarting from planned work on Dec. 14. Valero Norco, LA 250.0 Hydrocracker project will pro- 2013 ceed and be completed in late 2013, the co. said on July 27. FCCU, 100,000 b/d, will be 2Q revamped and work will take 2011 place at a alky unit, lasting 55 days starting in March, Co. said Oct. 26. Work planned at 90,000-b/d alky unit in March for 56 days. Upgrade project to build 2012 a new diesel hydrotreater unit moved from 2010 to 4Q 2012. Valero Port Arthur 325.0 Hydrocracker project will pro- 2012 TX ceed and be completed in late 2012, the co. said on July 27. Crude and coker work lasting 1H 2011 51 days to begin in February. Six coke drums will be re- 2011 placed in 2011. 77,000-b/d FCCU at reduced n/a 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. Planned hydrocracker turnaround, delayed from March, to take place in April and will last 24 days, Co. said Jan. 26. Expanded crude gather system 4Q Flint Corpus 300.0 Final dust clearning for sulfur Hills Christi, TX recovery unit No. 3 on Jan. 19-20, so the new unit can be commissioned. Citgo Corpus 163.0 Turnaround activities in process Christi, TX and will continue to Feb. 28, Co. said Jan. 20. New 42,500 B/D ULSD new unit has been started, now allowing the company to produce all of this fuel entirely in- house, Co. said Jan. 27. Valero Ardmore, OK 90.0 Plantwide turnaround expected to take place in March 2011. Pasadena Pasadena, TX 56.0 FCCU, 56,000-b/d, will be taken out of service Feb. 28 for 44 days for planned work, Co. reported Jan.25. WEST COAST Conoco Rodeo, CA 120.0 Planned maintenance underway, Co. said Jan. 20, but declined to say what units are involved and how long the work will last. Valero Benicia, CA 170.0 Process unit and FCCU down. FCCU unit to remain down amid maintenance planned for 1Q 2011. Plantwide turnaround is taking place and will last about 42 days, Co. reported Jan. 26. BP Carson, CA 264.0 Planned flaring activity to take place on Jan. 22-27, Co. reported Jan. 20. MIDWEST CVR Coffeyville 115.7 Periodic turnaround will take place KS in two phases beginning in Fall 20011 and completed in Spring 2012.

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