8 mmbbls of possible gross un-risked prospective oil in place were estimated in the Lower Portlandian
Sandstone, in what was believed at the time to be an untested fault block to the south of the well.
It grows on mean, stony soil on a bed of Kimmeridgian or sometimes Portlandian
clay and limestone, the essence of which seems to seep into the wine to give it a bracingly mineral tang.
The soils differ, too, classically comprising Kimmeridgian clay, a chalky marl containing fragments of fossilised oyster shells, with some Portlandian