Harbour Energy has taken a step forward with its yet-to-be sanctioned Tolmount East gas field development in the UK southern gas basin with the submission of environmental documents to UK authorities.

UK-listed Harbour became operator of the field following the company’s creation through the reverse takeover of former operator Premier Oil by private equity-backed Chrysaor, which completed at the end of March.

Harbour said earlier this year it was aiming to take a final investment decision in the first half of 2021.