Seascape Energy said on October 15, that Petronas had approved a 547-square-kilometre extension to its Temaris production-sharing contract (PSC) offshore Peninsular Malaysia.
The approval was issued through Malaysia Petroleum Management (MPM) in a letter of agreement and awaits completion of final documentation. The additional area lies north and east of the existing acreage and will take the PSC to approximately 1,770 square kilometres, a 45 per cent increase. Seascape holds a 100 per cent interest.
Seascape said it had paused its farm-out process while the extension was confidential.
It has now restarted the process and aims to bring in a partner before submitting the field development and abandonment plan (FDAP) in late Q4 2026.
The additional work commitment covers a contingent exploration well and the processing of new 3D seismic data. Petronas is due to acquire that data over the extension area in late 2026. The company said the firm commitment will be funded from existing cash.
Seascape said the enlarged area could double the approximately one trillion cubic feet (tcf) of net mean prospective resources identified on Temaris. It has commissioned Sproule ERCE to update its competent person's report and expects the revised report in the fourth quarter.
Temaris lies in about 70 metres of water on the western flank of the Malay Basin and includes the Tembakau and Mengkuang gas discoveries. The cluster was offered under Malaysia bid round 2025 and awarded to Seascape in June 2025.
The company plans to develop Tembakau first, with production targeted for the second half of 2028 at 100 million standard cubic feet per day.
