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04-02-13 1239ET

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) reported flaring at its Benicia, Calif., refinery Monday, according to a filing with the California Emergency Management Agency. The flaring is part of ongoing work on one of the hydrogen plants at the refinery and had no production impact, a spokesman said.

Planned work at HollyFrontier Corp.'s (HFC) El Dorado, Kansas, refinery is under way, the company said in a filing with the U.S. National Response Center released Tuesday.

LyondellBasell (LYB) has finished maintenance work at its Houston refinery and all units that were being worked on have returned to service, company spokesman David Harpole said Monday.

Phillips 66 (PSX) was restarting some units April 1 at its Ponca City, Okla., refinery following severe weather over the weekend. Several units were temporarily shut down over the weekend due to storms. Some have been restarted and others were being restarted.

Citgo Corp. reported an oil line leak in a fluid catalytic cracking unit at its Corpus Christi, Texas, refinery on Monday, prompting an emergency shutdown, according to a filing with the Texas Commission on Environmental Quality.

Five weeks of planned work on Valero Energy Corp.'s (VLO) McKee refinery in Sunray, Texas, is under way, Valero spokesman Bill Day said Monday.

Royal Dutch Shell PLC (RDSA, RDSB, RDSA.LN, RDSB.LN) last week reported that a gasoline-making unit at its Anacortes, Wash., refinery was up and running after a leak in the fluid catalytic cracking unit, or FCCU, was found on March 24. A filing on March 24 said the repairs would take three days, after which the unit would be restarted March 27. On March 28, the company reported to the agency that the unit was up and running "but not on spec yet."

BP PLC (BP, BP.LN) plans to burn gases from Monday to April 6 at its Carson refinery near Los Angeles, according to an updated government filing. BP didn't specify the reason for the flaring.

Philadelphia Energy Solutions restarted the FCCU 1232, hydrodesulfurization unit and alkylation unit at its Girard Point refinery in Philadelphia between March 24 and March 27, according to a government filing made public Thursday.

Marathon Petroleum Corp. (MPC) on March 27 said planned maintenance activities are currently under way at its 78,000 barrel-a-day refinery in Canton, Ohio. A company spokesman said several units are scheduled for maintenance in this round of work including a shutdown of the plant's key gasoline-making fluid catalytic cracking units and the crude unit.

Marathon Petroleum Corp. (MPC) reported planned maintenance at the FCCU 1 at its Galveston Bay refinery in Texas City, Texas.

Phillips 66 (PSX) experienced a compressor problem March 25 at its refinery in Sweeny, Texas, according to a government filing. The malfunction resulted in lower production rates, Phillips 66 said in its filing with the National Response Center.

Northern Tier Energy LP (NTI) in April will shut its Saint Paul Park, Minn., refinery for about 25 days to complete its expansion project that will increase crude-oil throughput of Bakken crude by 10%, or about 8,000 barrels a day, the company said during its fourth-quarter and full-year 2012 earnings call March 14. The starting date of the planned shutdown wasn't specified.

Turnaround maintenance also is planned in October at the plant's key gasoline-making fluid catalytic cracking unit. The start date of that work also wasn't specified, but it will last most of the month.

Citgo Corp.'s Lake Charles, La., refinery has experienced two upsets in as many days, according to two separate filings to the U.S. National Response Center. On March 13, a compressor at the refinery's Coker One Unit began flaring a release of hydrogen sulfide, and on March 12 a leak at the B-Reformer Unit released an unknown quantity of distillate into the atmosphere. The cause of these events were not known. Citgo wasn't available to comment.

Valero on March 11 said the new 57,000-barrel-a-day hydrocracking unit at its Port Arthur, Texas, refinery was shut for compressor repairs. The same unit had returned to service March 4 after a five-day unplanned shutdown. A second 45,000-barrel-a-day hydrocracking unit is operating normally, a company spokesman said.

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

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04-02-13 1239ET