Tycoon Kjell Inge Rokke’s Akastor has revealed a lucrative new offshore ship charter with Norwegian oil major Equinor.

Its joint venture AKOFS Offshore will keep the 157-loa well intervention ship Akofs Seafarer (built 2010) with the producer for three more years at a much better rate.

The extension is worth $300m until the end of 2028, Akastor said, equating to a whopping $274,000 per day.

Equinor has declared its optional period under the contract, in direct continuation of the current deal.

The original charter was signed for five years in 2020 at slightly less than NOK 3bn ($271m), or $148,500 per day.

Last month, Oslo-listed Akastor agreed to spend $22.5m to take full control of AKOFS Offshore.

The owner said it was buying a further 25% of the venture from Japanese trader Mitsui & Co, bringing its stake to 75%.

Trader Mitsui will exit the company, but giant Japanese shipowner Mitsui OSK Lines will retain the other 25%.

AKOFS owns two well-intervention vessels: the 121-loa Akofs Santos (built 2009) and the Akofs Seafarer.

Last year, Akastor-controlled DDW Offshore struck a refinancing deal to take full control of its fleet of three large anchor-handling tug supply vessels.

It said it had arranged a $31m loan package with US alternative shipping financier EnTrust Global’s Blue Ocean Funds.

Akastor, which has one offshore vessel itself, is 37% owned by Rokke’s Aker Kvaerner and 15% by investment bank Goldman Sachs.

The offshore company also has stakes in Odfjell Drilling and Awilco Drilling.

In addition, Rokke controls Norwegian anchor-handler owner Solstad Offshore.