KrisEnergy said it has commenced drilling of the Mustika-1 exploration well in the Sakti production sharing contract in the East Java Sea.
The company said drilling is expected to take around 20 days to complete.
The Mustika-1 well is targeting the Kujung I formation and is planned to reach a total measures depth of 3,100feet.
Chris Gibson-Robinson, director exploration and production, said: “The decision to drill Mustika-1 at this time comes as we are finalising project details for the Lengo development.
“This prospect is 10km west of Lengo and, if successful, we would look at producing Sakti gas through the Lengo facilities.”
KrisEnergy was awarded as the operator a 95% working interest in the Sakti production sharing contract in February last year.
The block covers 4,974 sq. km in the East Java Sea over the western margin of the East Java Basin, Bawean Arch and the Muriah Trough.
Golden Heaven Jaya Ltd holds the remaining 5% workinginterest.