Cue Sampang (15%) also reported that a number of other hydrocarbon shows have been encountered below this zone. The significance of all shows will be determined when wireline logs are run at total depth.

Located about 35km west of the Oyong field in 11m of water Mangga -1 is testing the Mundu Formation, which contains oil and gas in the Oyong oil and gas discovery, within a four way dip closure, about 110m updip of gas shows in the Anggur -3 well.

The well is estimated to contain a potential 110 billion cubic feet of recoverable gas (P50 case) up to a high side case of approximately 320 billion cubic feet of recoverable gas.

The East Java Basin is considered highly prospective for oil and several substantial oil and gas fields have been discovered within the vicinity of the North Bali 1 PSC area.

Participants in the Sampang PSC are Cue Sampang 15%, Santos (Sampang) 45% (operator) and Coastal Indonesia Sampang (El Paso) 40%.