Oil and gas explorer Kosmos Energy said on Monday it had made one of the largest discoveries of natural gas in recent years in waters offshore Mauritania, where it sees the potential to extract 50 trillion cubic feet of gas.

In view of the discovery at the Orca-1 well, Kosmos said it had decided to extend the timeline to sell down its interest in the area to next year.

“Orca-1, which we believe is the largest deepwater hydrocarbon discovery in the world so far this year, further demonstrates the world-scale quality of the Mauritania gas basin,” Kosmos Chief Executive Andrew Inglis said in a statement.

The area off Mauritania and its neighbour Senegal in West Africa is one of the most-watched basins in the world for gas drilling and has attracted investments from companies such as Australia’s Woodside Energy and BP.

Selected by SPTEC Advisory from Reuters