FACTBOX: Oil cos shut oil, refining output ahead of Ike

(Reuters) - Oil companies, still reeling from the impacts of Hurricane Gustav more than a week ago, shut more than 95 percent of their offshore oil production in the Gulf of Mexico and 16 percent of their U.S. refining capacity as a precaution ahead of Hurricane Ike.

Ike was gathering strength as it churned through the Gulf of Mexico's warm waters on a track that would skirt the heart of the U.S. offshore oil patch before slamming into the Texas coast late on Friday or early on Saturday.

The Gulf is home to a quarter of U.S. crude oil production and 15 percent of U.S. natural gas production, and a big share of the nation's oil refineries dot the Gulf Coast from Mississippi to Texas.

The following outlines the impact of last week's Hurricane Gustav and the approach of Ike on the energy sector:

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

CUMULATIVE IMPACT OF GUSTAV AND IKE

*14.1 million barrels of crude oil

*67.9 billion cubic feet of natural gas

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

CURRENTLY SHUT/SLOWED

*95.9 pct Gulf of Mexico oil output

*73.1 pct Gulf of Mexico gas output

*11 refineries shut, 16.1 pct of US capacity

*4 refineries representing 6.8 pct of US capacity at reduced rates

OTHER HIGHLIGHTS

*Henry Hub extends force majeure due Ike

*Exxon Mobil Baytown refinery, U.S. biggest, shut

*NYMEX Crude drops $2 Thurs, RBOB up 7 cents

*Cash products spike due Ike

*LOOP stops unloading ships, still delivers from storage

*Houston Ship Channel halts inbound traffic due to Ike

*Inbound ships halted Beaumont-Port Arthur, Corpus Christi, Freeport

*74,000 Louisianans still no power, nuke ramping up

*South Texas nuclear plant prepares for Ike

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

HEADLINES:

*95.9 percent of U.S. Gulf's 1.3 million barrels per day crude output shut

Wednesday, from 77.5 Tuesday, MMS says.

*73.1 pct of the Gulf's 7.4 billion cubic feet per day natural gas output

shut Wednesday, from 64.8 pct Tuesday

*****************************REFINING****************************

REFINERIES SHUT: (Texas, Ike-caused unless otherwise noted):

*Lyondell 270,600 bpd Houston refinery

*Exxon Mobil Baytown 567,000

*Shell-Pemex Deer Park 340,000

*Marathon Texas City 76,000

*ConocoPhillips 195,000 Alliance, Louisiana, due Gustav

*BP 467,700 Texas City

*ConocoPhillips 247,000 Sweeny

*Flint Hills 300,000 bpd Corpus Christi

*Valero 83,000 bpd Houston

*Valero 200,000 bpd Texas City

*Pasadena Refining 100,000 bpd

REFINERIES AT REDUCED RATES:

*Valero 289,000 bpd Port Arthur refinery

*Valero 195,000 bpd Memphis, Tennessee

*Citgo 430,000 bpd Lake Charles, Louisiana

*Motiva 285,000 bpd Port Arthur

BACKGROUND:

*At peak of Gustav's impact, more than a third of U.S. refining capacity

was either slowed or shut down.

********************ELECTRIC POWER IMPACT*************************

*Entergy: Power by Monday to ConocoPhillips Alliance

*Entergy La. Waterford 3 reactor up to 64 pct power

*South Texas nuclear plant readies for Ike

*Some 74,000 Entergy customers still lack power

**********************PORTS, WATERWAYS****************************

HEADLINES:

*LOOP stops unloading ships, keeps delivering from storage ahead of Ike

*Houston Ship Channel halted inbound due to Ike

*Beaumont-PA, Freeport halt inbounders; Corpus still open

*********************PIPELINES, GAS PLANTS************************

HEADLINES:

*Seaway crude pipeline shut Wed, 6 p.m. CDT

*SPR Bryan Mound, Texas, to shut due Ike

OTHER PIPELINE, GAS PLANT NEWS:

*Enbridge: Four pipelines in force majeure

*Part of BP Destin gas line to remain shut due Ike

*Henry Hub extends force majeure due Ike

*NYMEX keeps force maj. in place for August, September contracts

*Capline at reduced rates

*Colonial, Plantation pipelines at reduced rates

*Houma-to-Houston crude line to restart Saturday

*Centennial pipeline restarts

(Reporting by Bruce Nichols, Erwin Seba; Editing by Richard Valdmanis)