Shipowner John Fredriksen is strengthening his position as Norway’s richest person.

The list of the country’s 400 richest published people plublished by the respectable magazine Kapital calculates that Fredriksen’s fortune increased by NOK 1bn to NOK 114bn ($13bn) last year. That makes him twice as rich as the second on the list, fellow shipowner Torstein Hagen.

Fredriksen is Cypriot citizen and lives in London, but has kept strong ties to his home country.