John Fredriksen's restructuring Seadrill has added $100m to a short-term loan provided to subsidiary North Atlantic Drilling Ltd (NADL).
The drillship owner said the facility now matures on 31 July.
It was originally set up in January to lend $25m, but was then increased to $50m in April.
The expiry date has previously been pushed backed from 31 March and 30 June.
