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Buncefield oil depot

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Adapted from the English Wikipedia article Buncefield oil depot, available under CC BY-SA 4.0Updated 10 August 2025
Hertfordshire Oil Storage Ltd (HOSL)
Company typePrivate
IndustryOil storage and distribution
Founded1968
FounderGeorge Wimpey (constructed on behalf of BP and Shell-Mex)
Headquarters
Hemel Hempstead
,
United Kingdom
Area served
United Kingdom
ProductsStorage and distribution of petrol, diesel, aviation fuel
OwnerTotal (60%), Texaco (40%)

Buncefield oil depot, officially known as the Hertfordshire Oil Storage Terminal and managed by Hertfordshire Oil Storage Ltd (HOSL), is an oil depot situated on the outskirts of Hemel Hempstead, north of London, United Kingdom. In December 2005, a sequence of explosions triggered what became the largest fire in Europe since World War II.

Construction and operation

The facility was constructed in 1968 by George Wimpey on behalf of BP and Shell-Mex. It was connected via pipeline to Shell refineries located at Stanlow (Cheshire) and Shell Haven (Thurrock), facilitating the nationwide distribution of "white oil" products such as petrol and diesel.

To reduce transportation expenses, other depots supplied by pipelines were developed alongside Buncefield, allowing shared infrastructure among operators. However, coordinating multiple oil companies' workforce at a single location occasionally led to more complex industrial relations, as unionized employees could organize collective actions more effectively. In 1990, a new pipeline linked Buncefield with the Lindsey Oil Refinery in Humberside.

Prior to the 2005 incident—which destroyed more than a quarter of its facilities—Buncefield ranked as the fifth largest oil depot in the UK. Its pipeline network extended to Humberside, Merseyside, and major airports including Heathrow and Gatwick. The terminal was operated primarily by Total, holding a 60% stake, with Texaco owning 40%; both BP and Shell also utilized its storage capabilities. The depot’s capacity was approximately 60 million Imperial gallons (273 million litres), handling around 2.37 million tonnes of oil products yearly and filling roughly 400 tanker trucks each day.

In March 2008, BP revealed intentions to recommence certain operations at Buncefield, concentrating on supplying aviation fuel to Heathrow Airport. This reopening necessitated adherence to over fifty safety requirements, including refurbishment of storage tanks and installation of improved alarm systems.

The facility is divided into northern and southern zones: BP occupies the southern section; the northern area is further split into HOSL West, the BPA section, and HOSL East. Operators such as Texaco, Total, and Shell function within HOSL West and East, while aviation fuel storage is managed by the British Pipeline Agency (BPA) in its designated area. The fire predominantly affected the HOSL West and BPA regions.

See also

External links