Ya - I think this is going to irrelevant given the likely much larger discovery - but according to the Mercury Report prepared by PGS Reservoir Consultants the ST OIP was 27M and recoverable 5.4M - based on a 20% recovery factor.
See page 22 of the report.
Whether Gavea/ERH thought they would strike such a sizeable payzone is the interesting part. If they didn't and the 149m is multiples of their expectation - perhaps we are looking at a 100M OIP field?
ERH Price at posting:
0.0¢ Sentiment: None Disclosure: Held