The shipowner has bought 1,300,000 shares at $11.6846 each in his second raid in under a week.

His investment company Hemen Holdings now controls 119,097,583 Seadrill shares, giving him a 24.15% stake.

After Fredriksen’s previous $33m investment in Seadrill was revealed yesterday analysts suggested the additional cash flowing into the stock from the company’s main shareholder as insignificant.

One leading analyst told TradeWinds that Fredriksen had NOK 30bn ($4.18bn)