The prospective buyer of Chevron's oil refinery in Wales is examining whether an explosion which killed four people at the site this week could affect the deal.
Valero, a US refining giant, agreed to buy the plant for $730m (£445m), plus $1bn for oil stocks and other businesses in March. The deal is due to close in the third quarter of this year.
Valero, a US refining giant, agreed to buy the plant for $730m (£445m), plus $1bn for oil stocks and other businesses in March. The deal is due to close in the third quarter of this year.