Norway’s Eidesvik Offshore has promoted chief financial officer Helga Cotgrove to the role of interim chief executive while it hunts for a successor to boss Gitte Gard Talmo.

The CEO said last week she was leaving the company after 22 years.

The Oslo-listed platform supply vessel owner also said vice president of finance Lars Tufteland Engelsen will be the temporary CFO.

Gard Talmo said she had resigned on 9 September, but will remain with the company for a transition period of one month.

Cotgrove is a former Halliburton director of corporate development who joined Eidesvik in 2022.

She replaced Tore Byberg, who left to become finance chief at subsea desalination company Waterise.

Cotgrove has more than 20 years of energy-sector finance experience in roles within mergers and acquisition, strategy, tax, accounting and auditing.

She was recruited from the role of CFO at solar power plant company Norsk Solar.

Gard Talmo had been Eidesvik’s CEO since the beginning of 2022.

She is leaving to assume an unspecified position with an “international company” outside Norway.

Gard Talmo took over from Jan Fredrik Meling as CEO when he retired at the age of 65 after holding the position since 2005.

Gard Talmo was previously chief commercial officer, having taken on that role in 2015.

During her time as CEO, Eidesvik exited the seismic survey business with the sale of its fleet.

It has also doubled down on decarbonisation efforts.

Last month, owner and Finnish technology group Wartsila signed a contract to convert a PSV to ammonia fuelling in what they believe will be a world first.