Shell has again extended the deadline for Cove Energy shareholders to approve its £1.12 billion ($1.8 billion) takeover bid.

The supermajor has so far refused to raise its offer for the UK-listed explorer to meet a £1.22 billion rival bid by Thailand’s PTT Exploration & Production.

Shareholders now have until 11 July to accept Shell’s offe, rather than the prior 27 June deadline.

Cove’s