FACTBOX: Gustav cuts U.S. oil, gas, threatens commods

(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*****

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

*82.3 percent of Gulf of Mexico natgas output shut

*27 percent of U.S. refining affected, 11 percent shut, 16 percent at reduced rates.

*No damage assessments yet

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

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

*96.3 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.

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

natural gas output shut as of Sunday.

*****REFINING*****

*Ten refineries with capacity of 1.9 million bpd shut