A fire is continuing to blaze at a fuel depot in Hertfordshire after a series of large explosions sent black smoke drifting across south-east England...the blasts...injured 43 people, two seriously...The Buncefield depot is a major distribution terminal operated by Total and part-owned by Texaco [part of Chevron]...it is also used by BP, Shell and British Pipeline...A spokesman for Total said: "We are doing everything we can to support the emergency services and to bring the situation under control."