Santos Indonesian drilling update

The following is excerpt from Santos Limited?s Weekly Drilling Report for week ending September 22, 2005:

Development Well	Oyong Development
Type	Oil Development
Location	Offshore 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 -- 22/09/05	Conditioning hole in Oyong-8 DW1ST2 prior to drilling ahead from 962m. Oyong 8DW1ST1 was abandoned after the hole packed off at 540m. Oyong 4 DW1/ST1: Well completed. 178mm casing set at 1230m. TD 1610m. Oyong 5 DW1: 244mm casing set at 965m. Depth 1296m. PBTD 870m. Oyong 6 DW1 Pilot: 244mm casing set at 1022m. Hole abandoned at 1200m. Oyong 7 DW1/ST1: Well completed. 178mm casing set at 1189m. TD 1680m. Oyong 8 DW1: 244mm casing set at 1351m. TD 1652m. Pilot hole abandoned to drill sidetrack production well. Oyong 8 DW1ST1: Well abandoned after reaching a depth of 832m. Oyong 9 DW1/ST2: 244mm casing set at 1416m. TD 1474m. Pending completion. Oyong 10 DW1: 244mm casing set at 835m. Current depth 838m.
Planned Total Depth	920m SS
Interest	Santos Group 45.0%
	Singapore Petroleum Sampang Ltd 40.0%
	Cue Sampang Pty Ltd 15.0%
Operator	Santos Group