The first well in this prospect, Batu Hitam-1, is being drilled using the Offshore Courageous jack-up rig, and the planned total depth is 2,450m subsea.

The well will test the hydrocarbon potential of a large basement high structure located in the east of the PM308A block.

According to the company, the objectives of the well are Oligocene sandstones in a four-way dip closure and fractured pre-Tertiary basement in the underlying horst block.

Lundin Petroleum operates the PM308A block with a 35% interest, while JX Nippon Oil & Gas Exploration and Petronas Carigali hold 40% and 25% interests, respectively.