Jadestone Energy brought its second well of the 2026 East Belumut infill campaign onstream at 2,800 barrels of oil per day (bopd), setting a new Malaysia record for extended-reach drilling.
The well, EBA-07ST1, followed the campaign's first well, EBA-18ST3, which came online in June at a peak rate of about 3,200 bopd. EBA-07ST1 features a 930-meter horizontal reservoir section, drilled to a total measured depth of 5,473 meters. That horizontal section runs 600 meters longer than the campaign's first well, making EBA-07ST1 the longest well drilled to date on the East Belumut field. The well also achieved an extended reach drilling ratio of 4.1, a new record across all Malaysian basins.
An extended-reach well drills far sideways through the reservoir rather than straight down, letting a single well contact more of the oil-bearing rock from one surface location.
Jadestone holds a 60% interest in East Belumut under the PM323 production sharing contract, with PETRONAS Carigali holding the remaining 30%. The wells are part of Jadestone's upstream campaign on East Belumut, drilled with Velesto's NAGA 8 jackup.
Third well already drilled
Following the results of the first two wells, Jadestone sanctioned a third, contingent well. Drilling and completion on that well have concluded, with results to be reported in due course.
