RNS Number:5221Y Sound Oil PLC 18 June 2007 Sound Oil plc Pasundan-1 well Following press speculation in Malaysia earlier today, Sound Oil plc wishes to deny reports that an oil discovery has already been made at the Pasundan-1 exploration well. Drilling operations at Pasundan-1 are on schedule and the well is at 6,769 feet. Sound Oil plc is a 20% shareholder (through its wholly owned subsidiary Mitra Energia Citarum Limited) in the BPREC operating company that is drilling the Pasundan-1 exploration well, located approximately 50 km southeast of Jakarta, Java, Indonesia. 18 June 2007 This information is provided by RNS The company news service from the London Stock Exchange END