United Kingdom

The Southern United Kingdom is home to a number of the world’s under-developed onshore oil and gas fields, including the Wessex & Weald province where Alamo has its interests. The blocks are directly North of the Palmers Wood field, discovered by Conoco in 1983 and now owned by Star Energy, a subsidiary of Petronas International Corporation Limited. 

The Weald Basin is a lozenge-shaped accumulation of sediments located to the South of London, stretching from Southampton and Winchester in the West to Maidstone and Hastings in the East. Approximately 150km long by 60km wide.

Several producing fields have been located in the area, including Hydrocarbons from the Middle Jurassic Bathonian Great Oolite at Humbly Grove, Herriard, Storrington, Singleton, Stockbridge, Goodworth and Horndean. Late Oxfordian-Early Kimmeridgian Corallian Sandstone is found at Palmers Wood. Portland Sandstone makes up the Brockham and Godley Bridge sites while Corallian limestone is at Bletchingley, Purbeck sandstones in Albury and late triassic Rhaetic?calcarenites form part of the Humbly Grove field.

The Southern United Kingdom is home to the largest UK onshore oil field, operated by BP: the Wytch Farm field was initially discovered in 1959 and developed in the mid 1980’s to an estimated output of 50,000 barrels a day of oil / 8 mmscfd of gas / 300 tonnes of LPG in 2002.