US oil company Apache has delivered an upbeat outlook for the future of its the UK North Sea assets, despite production being disrupted in the first quarter by a transformer failure on the Beryl Alpha platform.

The two-week outage hit first-quarter production by 2600 barrels of oil equivalent per day, but since the end of March new drilling in the Beryl and Forties areas has discovered fresh resources, the company reported.

Chief executive John Christmann told a conference call: “One of the two main electrical transformers failed on our Beryl Alpha platform, resulting in two weeks of unplanned downtime.