Perenco has escalated its long-running legal dispute with Ecuador over default of a US$412 million debt to the French independent, payment of which was the subject of an arbitration award last year by a committee of the International Centre for Settlement of Investment Disputes (ICSID).

Perenco on Friday confirmed it has registered the award owed by Ecuador in the General Division of The High Court Singapore. The award is also registered in The High Court of Justice in the UK.