FACTBOX: Oil companies check for damage after Ike

(Reuters) - Oil companies inspected facilities for damage in the wake of Hurricane Ike, which struck Houston, the heart of the U.S. energy industry, Saturday.

In the storm's wake, a quarter of the nation's oil and refined fuel production idled, much of it awaiting restoration of electric power.

Early overflights found no major damage to energy infrastructure, though several Texas refineries needed some repair and Shell, the biggest Gulf of Mexico producer, found moderate damage to some of its platforms.

The following outlines the impact of Ike and the leftover effects of Hurricane Gustav on the energy sector:

***************************HIGHLIGHTS*************************

CUMULATIVE IMPACT OF GUSTAV AND IKE

*20.48 million barrels of crude oil

*102.79 billion cubic feet of natural gas

*33.06 million barrels of refining (counting only plants completely shut)

CURRENTLY SHUT/SLOWED

*99.9 pct Gulf of Mexico oil output

*93.8 pct Gulf of Mexico gas output

*15 refineries shut, 24.6 pct of US capacity

*1 refinery, ConocoPhillips Sweeny unit, restarting

*5 refineries representing 7.7 pct of US capacity at reduced rates

*Some ports, Gulf Coast pipelines ramping back up