Singapore’s Keppel Corp could finally be poised to offload three much delayed jack-up drilling rig newbuildings.

Oslo-listed Borr Drilling, the company behind the original order, said it had signed a binding letter of intent with an unnamed buyer for the sale of the rigs.

The buyer has agreed to pay a total of $320m for the rigs which have been named as the Tivar, Huldra and Heidrun.