Sona revealed it had reached a deal to reduce the base purchase price to acquire a 100% interest in production licence WA-15-L, which contains the Stag field, as well as pipeline licence WA-6-PL and associated assets for to $25 million.

Sona had originally struck a deal with the current owners of Stag, Santos and Quadrant Energy, to buy their stakes for a combined $50 million.

However, it revealed last month an independent technical and asset valuation by Gaffney, Cline & Associates (GCA) considered the original amount to be above what it considered to be the fair market value of the Stag field.

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