Pertamina is negotiating with Amerada Hess to acquire Amerada Hess' interest in the Jabung Block on Sumatra island, Indonesia. Amerada Hess has a 30% stake in the Jabung block. Petronas and Petrochina each hold a 30% interest while Pertamina holds the remaining 10%. Pertamina would like to acquire a larger stake in the natural gas block because they say it is a good asset. Natural gas from the Jabung block along with gas from two other suppliers is contracted to be sold to Singapore under a 20-year deal which will begin during the fourth quarter of 2003.