Serica Energy PLC on Monday said the Rowallan exploration well in the central North Sea was spudded.
Serica holds a 15% stake in the Rowallan well. It is operated by Eni UK Ltd, part of Italian oil major Eni SpA, holding 40%.
The well is targeting the high-pressure, high-temperature gas condensate Rowallan prospect, which comprises a significant structural fault and dip-closed trap in the east of block 22/19c, offshore the UK.
Serica said Eni will use Ensco 121 heavy duty jack-up rig to drill the well. Serica expects to take around 140 days to drill the well.
An independent competent person's report estimates Serica's net Rowallan prospective resources to be 20 to 60 million barrels of oil equivalent within block 22/19c, the UK company said.
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