FACTBOX: Gustav cuts U.S. oil, gas, Louisiana power

(Reuters) - Hurricane Gustav, the first big threat to U.S. Gulf of Mexico energy and port infrastructure since Katrina and Rita in 2005, made landfall west of New Orleans Monday morning.

The following outlines the impact on the energy sector:

*****HIGHLIGHTS*****

*100 percent of U.S. Gulf of Mexico oil output shut

*95.4 percent of Gulf of Mexico natgas output shut

*33.5 percent of U.S. refining affected, 15.2 percent shut, 18.3 percent at reduced rates.

*About 750,000 Entergy (ETR.N) customers lose power

*No damage assessments yet

*US waives gasoline standards in parts of Texas and Louisiana, ready to release emergency crude

*****CRUDE OIL, NATURAL GAS*****

*100 percent of U.S. Gulf of Mexico's 1.3 million barrels

per day crude output shut as of Sunday, according to

U.S. government.

*95.4 percent of the Gulf's 7.4 billion cubic feet per day

natural gas output shut as of Sunday.

*****REFINING*****

*13 refineries with capacity of 2.67 million bpd shut

*10 refineries with capacity of 3.23 million bpd at

reduced rates

REFINERIES NOT PRODUCING FUEL:

*ExxonMobil 503,000 bpd Baton Rouge, 193,000 bpd

Chalmette, Louisiana.

*Murphy (MUR.N) 120,000 bpd Meraux, Louisiana

*ConocoPhillips (COP.N) 239,000 bpd Lake Charles and

195,000 bpd Alliance, Louisiana, refineries

*Motiva 236,000 bpd Norco, Louisiana; 235,000 bpd

Convent, Louisiana refinery on standby.

*Marathon (MRO.N) 256,000 bpd Garyville, Louisiana.

*Calcasieu 80,000 bpd Lake Charles, Louisiana

*Alon (ALJ.N) 80,000 bpd Krotz Springs, Louisiana

*Valero (VLO.N) 250,000 bpd St. Charles, Louisiana

*Total 232,000 bpd Port Arthur, Texas. (Unconfirmed by

Reuters)

*Shell 55,000 bpd St. Rose, Louisiana. (Unconfirmed by

Reuters)

REFINERIES AT REDUCED RATES:

*ExxonMobil 567,000 bpd Baytown, Texas; 349,000 bpd

Beaumont, Texas

*Citgo 430,000 bpd Lake Charles, Louisiana

*Valero 325,000 bpd Port Arthur, Texas; 130,000 bpd

Houston, Texas, 245,000 bpd Texas City, Texas

*Motiva 285,000 bpd Port Arthur, Texas

*Chevron 330,000 bpd Pascagoula, Mississippi

*BP 467,700 bpd Texas City, Texas

*Pasadena Refining 100,000, Texas (Unconfirmed by

Reuters)

*****ELECTRIC POWER*****

*Entergy (ETR.N) says about 750,000 of 1.9 million customers without power, third highest in company's 95-year history, after Katrina and Rita.

*Entergy's Waterford 3 nuclear plant shut Sunday night; River Bend nuclear plant powered down to 75 percent due to lower electricity demand.

*****SHIPPING AND PORTS*****

*Louisiana Offshore Oil Port stopped unloading ships

Saturday and shut flows from storage Sunday

*Houston Ship Channel closed to inbound traffic at midnight

Sunday (1 a.m. EDT Monday), all outbounders already gone

*Mississippi River traffic at New Orleans halted inbound at

noon (2 p.m. EDT) Saturday, outbound as of 6 p.m. CDT (7 p.m. EDT).

*Traffic at Lake Charles, Louisiana, halted Sunday

*Traffic at Beaumont and Port Arthur, Texas, halted Sunday

*Gulf Intracoastal Waterway closed Mississippi to Florida

*****PIPELINES*****

*Explorer Pipeline says entire 700,000 bpd products

pipeline, Gulf Coast to Chicago, available Monday night

*El Paso's (EP.N) said its Tennessee and Southern Natural

gas pipelines offshore throughput cuts total 2.5

Bcfd.

*TEPPCO's TPP.N 340,000 bpd products line from Texas to

Northeast cuts run rates, Beaumont distillate line down.

*Henry Hub natural gas trading hub shut Sunday.

*Enbridge (ENB.TO) (EEP.N) stopped taking natural gas

production Saturday on systems with 6.7 Bcfd capacity.

(Reporting by Bruce Nichols, Erwin Seba, Chris Kelly and Marcy Nicholson; Editing by Richard Valdmanis)