Total encountered hydrocarbons in Upper Jurassic and Triassic sandstone reservoirs, with 64 metres net pay encountered, consisting of lean gas and condensate and high-quality light oil, according to the press release.

According to partner Ithaca, 30/12d-11 (Isabella) was drilled as a gas-condensate prospect, defined as a four-way dip closed structure, with the updip part stratigraphically trapped against the Jane diapir.
Jim House, CEO of Neptune Energy, said in the press release that: “Having acquired our interest in the exciting HPHT Isabella prospect in 2018, the result further strengthens our growing UK portfolio and demonstrates the significant remaining hydrocarbon potential in the region.”
The operator in the license P1820 is Total, other partners are Ithaca and Euroil Exploration.