UK North Sea oil firm Tailwind Energy is celebrating production from a new well on the Bittern field.
Tailwind said B5 was a sidetrack of an existing Bittern well and that production rates from it had stabilised at more than 5,000 barrels of oil per day.
It said the project had come in significantly under budget and hailed the work of partners Dana Petroleum, Waldorf Production, Petrofac and Stena Drilling.
The Bittern field was developed as a multi-well subsea tieback to the Triton FPSO, operated by Dana and located 120 miles east of Aberdeen.
Bittern was discovered in 1996 and first production arrived four years later.
Tailwind has held a 64.63% non-operated stake in Bittern since September 2018, when it completed the acquisition of Shell and ExxonMobil’s stakes in the Triton cluster.
The London-headquartered company is backed by private commodities and energy group Mercuria.
Tailwind also hopes to make a final investment decision in 2020 on the development of the Evelyn field.
It want to develop Evelyn as a single well, subsea tie-back to the Triton, with first oil expected by the end of 2022.
Tailwind submitted an environmental statement for the project to the UK Government in August.
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