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Summary

Roti 2

Santos Ltd, as Operator for the South West Queensland Unit, announces a successful gas exploration well in the Queensland sector of the Cooper/Eromanga Basins.

The exploration well, Roti 2, flowed gas at rates of 189,700 cubic metres per day (6.7 million cubic feet per day) and condensate of 76 kilolitres per day (480 barrels per day) from reservoir sands in the Permian Toolachee Formation over the interval 2231m – 2246m through a 13mm (0.5″) surface choke.

The Roti 2 gas flow, from a separate culmination on the Roti structural complex, follows the recent discoveries by the South West Queensland Unit at Coonaberry 1 and Raworth 1 and the successful gas appraisal well Wippo East 2.

Roti 2 is located 35km east of the Ballera Gas Centre and some 2km south east of the Roti gas field.

Gas sands in the Patchawarra Formation will be tested prior to casing the well as a future gas producer.

The participants in the Roti 2 well are:

Santos Group

60.06% (Operator)

Delhi Petroleum

23.2%

Origin Energy

16.5%