DOW JONES NEWSWIRES 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. A hydrocracker was put into restart mode the evening of April 28, at Valero's 250,000 barrel-a-day refinery in Port Arthur, Tx., according to the National Response Center. A flaring event, releasing excess sulfur dioxide, accompanied the restart. A flaring event took place the evening of April 27, at ConocoPhillips 139,000 barrel-a-day refinery in Wilmington, Calif., according to a California Hazardous Materials Spill Report. The even released an excess of sulphur dioxide. It wasn't know whether the flaring had anything to do with the ongoing maintenance on a reformer at the facility. An unplanned flaring event took place on April 27, at the 265,000 barrel-a-day BP refinery in Carson, Calif., according to the South Coast Air Quality Management District. No firm indications were given as to which unit has been affected and calls to BP weren't immediately returned. Shell Oil Co. said that scheduled maintenance is underway on a crude and coker unit's at it's 156,000 barrel-a-day refinery in Martinez, California. An equipment failure took place on April 26, at Chevron's 246,000 barrel-a-day refinery in Richmond, Calif., and caused an excess emission of dulfur dioxide, according to the California Emergency Management Agency Hazardous Materials Spill Report. No firm indication was given regarding the affected unit, or units. An operational upset was reported by Husky Energy Inc., with an unspecified unit taken off line on April 25 at it's 160,000 barrel-a-day refinery in Lima, Ohio. The problem was blamed on a small gas leak and reapairs could take two to seven days, according to Husky's downstream senior vice president, Bob Baird. On April 26, a compressor failed and other units were shut according to a public filing. ExxonMobil reported flaring at it's 238,000 barrel-a-day ExxonMobil Joliet refinery in Channahon, Ill., on April 24, when an unspecified piece of equipment was being was being taken out of service. Continuous flaring was seen the afternoon of April 25 at ConocoPhillips 122,000 barrel-a-day refinery in Rodeo, Calif., according to the California Hazrdous Materials Spill Report. Traders said work is being performed on the company's unicracker/fluid catalytic cracker and reformer. Flaring took place at Delaware City Refinng Company's 210,000 barrel-a-day refinery in Delaware City the morning of April 25, according to the Delaware Department of Natural resources and Environmental Control. The event was triggered by a compressor tripping off line. The refinery has been owned by PBF Energy Partners since June, 2010. A compressor at the ConocoPhillips-Cenovus Energy 306,000 barrel-a-day Wood River Refinery in Roxana, Illinois tripped off line late Tuesday and caused flaring, according to a report sent to Illinois state environmental regulators. The even lasted for an hour and a half and the cause and needed repairs are being assessed. HollyFrontier is midway through a seven day maintenance program on a crude unit at the East Plant of it's 155,000 barrel-a-day refinery in Tulsa, Oklahoma, according to trading sources doing business with the company. The crude unit was taken out of service on April 21. ConocoPhillips is in restart mode at it's 100,000 barrel-a-day refinery in Ferndale, Wa., after an extensive six week maintenance program, according to trading sources doing business with the company. In addition, the company has taken a reformer down for maintenance at it's 139,000 barrel-a-day refinery in Wilmington, California. A hydrocracker at the 407,000 barrel-a-day BP refinery in Texas City, Tx., was taken out of service on April.20 due to severe thunderstorms, a person familiar with operations said. The hydrocracker was affected by a compressor that tripped of line during the storm. The unit is expected to return to service by April. 27. A two hour flaring event, caused by a power failure, took place at Houston Refining LP's 280,000 barrel-a-day refinery in Houston, Tx., late aftenoon April. 21, according to the Texas Commission On Environmental Quality. The even forced a coker down, but the unit was put into restart mode in short order. A hydrocracker at Valero's 287,000 barrel-a-day refinery in Port Arthur, Tx., is still down after a flaring event took place the morning of April 21, according to company spokesman Bill Day. He said the emission event was dut to a compressor trip. Tesoro Corp. (TSO) on April 18 said operations are running normally at its Los Angeles-area refinery in Wilmington, Calif., and at its Anacortes, Wash., refinery after completing planned maintenance. The scope or the duration of the maintenance wasn't disclosed. BP Plc. (BP) hopes to finish maintenance work at its 230,000 barrel-a-day Cherry Point refinery in Ferndale, Wash., by the end of April, a source famailiar with the refinery said on Apri l7. Tesoro Corp. (TSO) said on April 17 a power outage caused a compressor trip at the coker unit at its 93,000 barrel-a-day refinery in Wilmington, Calif. Motiva Enterprises LLC (RDSA, RDSB) on April 16 shut a hydrocracking unit at its Norco, La., refinery after a pump malfunction at the hydrogen plant. No other details were provided in the filing to the National Response Center. Exxon Mobil Corp. (XOM) reported an unspecified unit upset April 15 at its 240,000 barrel-a-day refinery outside Joliet, Ill., according to a government filing. Exxon Mobil Corp. (XOM) said April 14 a compressor tripped at its 344,000 barrel-a-day refinery in Beaumont, Texas. ConocoPhillips (COP) said a small fire early April 13 at its 76,000 barrel-a-day refinery in Rodeo, Calif., was promptly extinguished. Refinery operations were "otherwise routine," a company spokesman said. Chevron Corp. (CVX) reported an upset April 11 at the sulfur recovery unit at its refinery in El Segundo, Calif., according to a government filing. For more detailed information, search Dow Jones Newswires using the code N/REF. Operator Refinery Capacity Description Restart (in 000s bbl/day) UNPLANNED CANADA CARIBBEAN EAST COAST MIDWEST CVR Wynnewood 70.0 Power snag forces SRU off-line Energy OK on Apr 2, a filing to the NRC said. GULF COAST Holly Artesia, NM 100.0 FCCU shut for 10-15 days unplan- Frontier ned maintenance on April 5. Motiva Norco, LA 233.5 Hydrocracking unit shut on Apr Enterprises 16 due to pump failure at hydro- gen plant. No restart timing indicated in filing to NRC. Pasadena Pasadena TX 100.0 Coker unit damanged by on Dec 10 Refining fire. Fire contained; no other units affected, the co. said on Dec. 12. On Jan 27, the co. said there was no change since the Dec. 12 statement; no re- start timing. Valero Meraux LA 135.0 Refinery in restart after brief power outage on Apr 9. Alky Unit still shut for turnaround and FCCU shut until that work is done. MIDWEST Exxon Channahon 240.0 Gas compressor unit shut at Mobil IL catalytic hydrodesulfuriza- tion unit on Mar 12. No other details provided. WRB Roxana 306.0 Ultralow-sulfur diesel hydro- Refining IL treater trips off-line on Apr 7 - filing. No further details were provided. ROCKIES WEST COAST BP Ferndale, 230.0 Refinery idled after Feb. 17 End WA fire at crude unit. Repairs expected to go on through April. PLANNED CANADA Husky Saskatchewan 21-days maintenance set in 1stH Upgrader first half 2012 at hydrogen 2012 plant, the co. said on Feb 9. Husky Saskatchewan Major turnaround to take place Spring Refinery in spring of 2013. Plant-wide 2013 shutdown for inspection and equipment repairs. CARIBBEAN HOVENSA St. Croix 350.0 Refinery shutdown completed, the Feb 21 co. said on Feb. 21. The facility 2012 will be operated as a products storage terminal. Valero Aruba 235.0 Operations will be suspended at the end of March due to eco- nomics, the co. said on Mar 19. EAST COAST Conoco Trainer, PA 185.0 Crude processing halted; operations winding down, on Sept. 30. The refinery will be shuttered at end-May if not sold. Sunoco Philadelphia 335.0 Refineries up for sale on July Marcus Hook 190.0 Sept. 6; Marcus Hook shut 2012 Dec. 1 ahead of schedule due to poor refining econo- mics. Phila. to shut in July. GULF COAST BP Texas City 406.6 FCCU No. 3 and Alkylation unit down TX for routine maintenance that began around Jan. 5 continues, a person familiar with the refinery said on Apr 5. Restart estimate not available. Conoco Belle Chasse 247.0 Refinery up for sale a Phillips LA Nov. 29 Bloomberg News report said. Exxon Baytown 560.6 Two months turnaround work got Feb Mobil TX under way on Feb. 1 at an alky- 24 lation unit and FCCU. Exxon Beaumont 345.0 Crude Unit B, Coker Unit and Mobil TX associated units shut for plan- ned maintenance on Apr 1. Work will continue for several weeks. Holly Artesia, NM 100.0 Crude runs will be reduced by Early Frontier 50% during 30 days of major turn- 2012 maintenance in early 2012, the Co. said on Aug. 5. Valero McKee TX 170.0 5 week FCCU turnaround began on May 5 March 31 weekend, the co. said on Apr 2. Vacuum unit turnaround planned in first half of 2012, company said. Expansion project announced March 2011 to increase crude oil throughput by 25,000 b/d to 195,000 b/d. Valero Meraux, LA 135.0 FCCU will be shuttered during alkylation unit turnaround main- tenance that began wk of Jan 2. Work continues the co. said on Apr 10. Valero Houston,TX 88.0 Seven weeks of FCCU maintnance end-March starting in Feb. 2012 the Co. said on Nov. 1, 2011. Valero Norco, LA 185.0 Co. on Jan. 31 said 10-weeks of April planned crude/coker unit mainte- 2012 will get under way in Feb. Hydrocracker project will pro- 2013 ceed and be completed in late 2013, the co. said on 7/27/10. 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. Hydrocracker remains shut for catalyst change, the co. said on Apr 6. MIDWEST CVR Coffeyville 115.7 Final phase of turnaround work Q1 KS will begin Feb 28 at crude unit 2012 No. 2, coker, vacuum unit No. 2, hydrotreater for 4-5 weeks. First two phases concluded in Nov 2011. CVR Wynnewood 54.0 30-40 days maintenance planned Q3 OK in 3rd Q 2013, the co. said on 2013 Nov. 3, 2011. Holly Tulsa, OK 125.0 The entire refinery will be shut Late Frontier while West Plant section under- 2012 goes major turnaround maintenance in late 2012, the Co. said on Aug. 5, 2011. Husky Lima, OH 160.0 15-days of maintenance at diesel 4Q Energy hydrotreater; 29-day at aromatics 2012 unit set for 4Q 2012, the co. on Feb 9. New 20,000-b/d kerosene hydro- 1stH treater will start up in 1st 2013 half 2013, to co. said on Feb 9, 2012. 45-days of major turnaround sched- uled in 2014; 70% of units involved. Remaining 30% will under go major turnaround in 2015, the co. said on Feb 9, 2012. Husky Toledo, OH 140.0 Minor turnaround planned in mid- Energy 2012; the partial outage will last about 21 days, the co. said on Feb. 9. Tesoro Mandan, ND 58.0 Total crude-oil processing capa- 2nd Q city to increase by 17% to 68,000 2012 b/d by 2nd quarter 2012. Valero Memphis, TN 180.0 Five weeks of maintenance on early-April crude unit starting in March. 2012 2012, co. said on Nov. 1, 2011. ROCKIES WEST COAST Alon Bakersfield 14.5 Refining operations halted for CA at least one month for econo- mic reasons, a local news re- port said on Jan 15. BP Carson, CA 265.0 Planned CDU maintenance begins Mar 26 on Mar 13; flaring and emissions are expected through Apr 6. BP Ferndale, 230.0 Refinery idled after Feb. 17 End WA fire at crude unit. Planned April maintenance advanced; plant will remain shut through April. Conoco Ferndale 100.0 Turnaround maintenance under way Apr 7 WA on Mar 10 at unspecified unit or or 14 units, co. said. Traders said work will last 5-6 weeks. Tesoro Anacortes, WA 120.0 Anacortes, Wa., Wilmington, Ca. Wilmington,CA 97.0 refineries at normal rates following scheduled maintenance.