The Macedon Gas Development will commercialise natural gas from offshore production lease WA-42-L, located 100 km west of Onslow. Recoverable reserves for the Macedon gas field are between 400 and 750 Bcf of gas.
The project involves four offshore production wells supplying a 90.5 km long, 500 mm diameter wet gas pipeline to an onshore gas treatment plant. The plant will have a nominal capacity of 200 MMcf/d and will be constructed at Ashburton North. A 67 km, 500 mm diameter sales gas pipeline will interconnect with the Dampier to Bunbury Natural Gas Pipeline for sale to the domestic gas market in Western Australia.
Project costs will be approximately $A1.58 billion with first production expected during calendar year 2013.
BHP Billiton is operator of the Macedon Gas Development with a 71 per cent interest while joint venture partner ExxonMobil holds the remaining 29 per cent.
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