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The Brent field is exploited by 4 platforms in an irregular SSW-NNE line. The first in place was the concrete legged "Condeep" Brent Bravo in 1975, followed by the concrete legged Brent Delta, Brent Charlie and steel-jacket Brent-A (as of 2004, the platform still produces oil through a manifold all Brent Alpha fluids are produced across to Brent Bravo). A fifth installation, the floating Brent Spar served as a storage and tanker loading buoy and was installed early in the field's construction. The "spar" design of this installation lead to the name by which it became the best known of the Brent installations (outside the oil industry).

Brent Field

Position - 186 km (116 miles) north-east of Lerwick, Scotland
Block number - 211/29
Operator - Shell UK Limited
Licensees - Shell/Esso
Discovery date - July 1971
Water depth - 140 m (460 ft)
Production start-up - Brent B - 11 November 1976 into storage, 13 December 1975 first tanker loaded
Reservoir depth - 2651 m (8700 ft) Brent, 2865 m (9400 ft) Statfjord (9000 ft)
Production - Oil: Initially via Spar loading facility but from November 1979 via the Brent System to Sullom Voe.
Gas: Produced via FLAGS line to St Fergus.