Santos Indonesian drilling update

Thursday, June 9 2005 - 07:12 AM WIB

The following is excerpt from Santos Limited?s Weekly Drilling Report for week ending June 9, 2005:

Delineation Wells (Near Field Exploration / Appraisal Wells)Jeruk 2 ST4
TypeOil Appraisal
LocationOffshore Indonesia
Sampang PSC, East Java Basin. 1.6km E of Jeruk 1, 35.0km SW of the Oyong Field, and some 40km SE of Surabaya. Jeruk 2 ST4 is an appraisal sidetrack to be drilled out of the existing Jeruk 2 wellbore.
Status at 0300hrs -- 09/06/05 Drilling ahead. The current depth is 3296m with 409m progress from the 244mm.
Planned Total Depth (Rev.) 5570m
InterestSantos Group 45.0%
Singapore Petroleum Sampang Ltd 40.0%
Cue Sampang Pty Ltd 15.0%
OperatorSantos

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Delineation well (Near Field Exploration/Appraisal Well)Tanggulangin 4 ST1
TypeOil Appraisal
LocationOnshore Indonesia
Brantas PSC, East Java Basin. 1.0km N of Tanggulangin 1, 5.0km E of the Wunut Field facilities, and some 35km S of Surabaya.
Status at 0600hrs -- 08/06/05 Waiting on cement after plugging back lower section of hole. The well is at total depth of 1143m with no progress for the week.
Planned Total Depth1073m
InterestLapindo Brantas 50%
Novus Indonesia Brantas Company 32%
Santos Group 18%
OperatorLapindo Brantas

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Development WellsOyong Development
TypeOil Development:
LocationOffshore Indonesia, East Java Basin
Sampang PSC, 40km E of Jeruk 1 and some 80km E of Surabaya.7 Deviated Well Batch Drilling Program (Oyong 4 DW1 ? Oyong 10 DW1)
Status at 0600hrs -- 08/06/05 Drilling ahead 311mm hole section in Oyong 4DW1.
Oyong 4 DW1: 340mm casing set at 402m.Current depth 463m.
Oyong 5 DW1: 340mm casing set at 407m.Current depth 410m.
Oyong 6 DW1: 340mm casing set at 409m.Current depth 412m.
Oyong 7 DW1: 340mm casing set at 401m.Current depth 404m.
Oyong 8 DW1: 340mm casing set at 403m.Current depth 406m.
Oyong 9 DW1: 340mm casing set at 398m.Current depth 401m.
Oyong 10 DW1: 340mm casing set at 348m.Current depth 352m.
Planned Total Depth920m SS
InterestSantos Group 45.0%
Singapore Petroleum Sampang Ltd 40.0%
Cue Sampang Pty Ltd 15.0%
OperatorSantos Group

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