The Hewett gas field is a large natural gas and associated condensate field located under the North Sea 19 miles (30 km) off the Norfolk coast.
[1] The gas reservoir is a Lower Triassic (Middle and Lower Bunter) sandstone and a Permian Zechstein carbonate bed at a relatively shallow depth of 3,000–4,200 feet (914–1,280 m).
The original determination of the gas in place amounted to 115 billion cubic metres.
Eni submitted plans in 2019 to decommission the Hewett field and to remove all installations.
The annual gas production from the Hewett field (in million standard cubic feet) was:[4]In 2020 Eni submitted to the UK Government a proposal for the decommissioning of the Hewett field and its installations.