US private company Kohlberg Kravis Roberts (KKR) has opened its NOK 7.2bn ($829.5m) takeover of Norway's Ocean Yield after most bondholders approved the deal.

Holders of three issues were asked to vote that the acquisition would not constitute a change of control event for the bond terms.

Ocean Yield won approval from holders of two issues worth NOK 1.5bn, but did not get enough votes from the bondholders in the $125m perpetual tranche.