250 kilometres south-west of Melbourne, in 70 metres of water.
Santos (50% and operator), AWE (25%), Mitsui (25%).
Casino production commenced in February 2006, with Henry and Netherby coming on line in February 2010.
Gas is produced from four subsea production wells and is piped to the onshore treatment plant at Iona, Port Campbell, where it is supplied into the Victorian gas network.
Santos has an agreement with EnergyAustralia to supply up to 420 petajoules of gas over 12 years, which commenced in 2006.
Santos' share of 2015 production was 11.0 petajoules of sales gas and 6,100 barrels of condensate.