Bass Oil Ltd. is preparing to ramp up its Indonesian operations, with a drilling rig already mobilising to the Bunian 6 well site within the Tangai-Sukananti KSO in the South Sumatra Basin.
Bass expects drilling operations to start in early May following completion of essential pre-spud safety and operational checks.
Bass, which holds a 55 per cent interest as the operator of the permit, has expressed confidence in the development, estimating an 80 per cent likelihood of success.
The new well is expected to triple field production, lifting output from the current 250 barrels of oil per day (bopd) to 750 bopd. For Bass, this translates to a net share increase of approximately 140 to 410 bopd.
The project is a key component of the company’s 2026 drilling program, designed to boost production at a time when global oil prices remain elevated. The project is expected to recover over 150,000 barrels of oil.
The Bunian Field contains oil at three reservoir levels. The Bunian 6 well will target the primary TRM3 sandstone reservoir, which is located near the crest of the structure where recent seismic studies have identified optimal reservoir parameters.
Beyond the primary target, the well will also assess the potential of the secondary K reservoir.
While the K reservoir has previously produced oil in other wells within the field, it is not currently ascribed 2P reserves, making this an important test for the company’s future reserve growth.
Drilling is anticipated to take approximately 30 days to reach a total depth of 1,820 metres, with the well expected to come online by mid-June.
The project is fully funded, with all drilling expenditure being cost-recoverable against existing production under the terms of the KSO.
This latest development follows integrated field studies, including a reprocessed 3D seismic survey, which have also identified additional drill targets in the area, including Bunian West and Bunian North West.
