An early morning view of the BP refinery, Thursday March 24, 2005, in Texas City, Texas. All but one of the 1,800 or so oil refinery workers have been accounted for after overnight search efforts following the thunderous blast killed 14 workers and injured more than 100 other people, the refinery manager said Thursday. (AP Photo/Tony Gutierrez)

A U.S. flag and a BP flag wave in the wind at half staff in front of the BP refinery, Thursday, March 24, 2005, in Texas City, Texas. The plant was rocked by an explosion Wednesday that left 14 employees dead. (AP Photo/Tony Gutierrez)

An early morning view of the BP refinery, Thursday March 24, 2005, in Texas City, Texas. All but one of the 1,800 or so oil refinery workers have been accounted for after overnight search efforts following the thunderous blast killed 14 workers and injured more than 100 other people, the refinery manager said Thursday. (AP Photo/Tony Gutierrez)

A wreath is places at the front gate of the BP Refinery in Texas City, Texas, Thursday, March 24, 2005, after an explosion at the plant Wednesday killed 15 an injured more than 100 people. (AP Photo/Bilol Haber)

Flames erupt from the BP Amoco PLC oil refinery plant in Texas City, Texas after an explosion on Wednesday, March 23, 2005. BP spokesman Neil Chapman confirmed fatalities, but said he did not have a total number. There are ``more than one,'' he said. BP's Texas City plant is a 1,200-acre spread with 30 refinery units. The plant processes 433,000 barrels of crude oil a day. (AP Photo/The Galveston County Daily News, Dwight Andrews)

A car passes on Highway 146 as flames erupt from the BP oil refinery plant after an explosion on Wednesday, March 23, 2005, in Texas City, Texas. The explosion, which occurred in a part of the plant used to boost the octane level of gasoline, killed at least one person and injured more than 70 people. The cause is unknown. (AP Photo/The Galveston County Daily News, Chad Greene)

Firefighers pour water on a damaged unit as rescue personnel search for victims following an explosion that rocked the BP refinery Wednesday, March 23, 2005, in Texas City, Texas. The explosion killed an undetermined number of people and injured more than 100. The fire was extinguished after a few hours, and workers were searching through rubble for survivors or bodies. (AP Photo/Houston Chronicle, Brett Coomer)

Firefighters pour water on a smoldering unit following an explosion that killed an undetermined number of people and injured more than 100, at the BP refinery, Wednesday, March 23, 2005, in Texas City, Texas. BP spokesman Neil Chapman confirmed fatalities but did not have a total number. The fire was extinguished after a few hours, and workers were searching through rubble for survivors or bodies. The explosion occurred in a part of the plant used to boost the octane level of gasoline. The cause is unknown. (AP Photo/Houston Chronicle, Brett Coomer)

Firefighers and rescue personnel search the rubble for victims following an explosion at the BP oil refinery Wednesday, March 23, 2005, in Texas City, Texas. The explosion killed an undetermined number of people and injured more than 100. (AP Photo/Houston Chronicle, Brett Coomer)

Firefighters pour water onto a smoldering unit following an explosion at the BP oil refinery Wednesday, March 23, 2005, in Texas City, Texas. The explosion killed an undetermined number of people, injuring more than 100 and sending flames and black smoke billowing into the sky, authorities said. (AP Photo /Brett Coomer, Houston Chronicle)

Firefighers and rescue personnel search the rubble for victims following an explosion at the BP oil refinery Wednesday, March 23, 2005, in Texas City, Texas. The explosion killed an undetermined number of people and injured more than 100. (AP Photo/Houston Chronicle, Brett Coomer)

Emergency officials load a BP employee into a life flight helicopter at the Mainland Medical Center to be taken to Memorial Herman Hospital after an explosion at the BP oil refinery plant in Texas City, Texas on Wednesday, March 23, 2005. An explosion rocked the refinery Wednesday, killing an undetermined number of people, injuring more than 100 and sending flames and black smoke billowing into the sky, authorities said. (AP Photo/The Galveston County Daily News, Dwight Andrews)

An ambulance leaves a BP Oil Refinery in Texas City Wed March 23, 2005 after an explosion which injured at least 10 people. (AP Photo / Michael Stravato)

Police block roads around a BP Oil Refinery in Texas City, Wednesday March 23, 2005 after an explosion which injured at least 10 people. (AP Photo / Michael Stravato)