Ann: Rig Demobilisation , page-18

Just trying to work out Surprise possible volume of oil available, compared to other oil fields .

"John Heugh: That’s too difficult a question to answer at this stage. We do know that in an area
of approximately less than one square kilometre, our reservoir engineers are telling us we may
have between a half to two million barrels of oil in that area. That area being less than one
square kilometre, one well might drain that area successfully. And the total area involved at the
Surprise prospect per se, is approximately five square kilometres. Now mathematically that of
course gives the idea of about five wells.
However there is, we think, some considerable up-dip oil potential along the nose of the
structures. Surprise is situated at the end of a long nose that comes down from a salt intrusion,
down into the kitchen. So if that particular structure is filled to spill, obviously there’s a lot more
up-dip potential and there could be in fact, tens or even scores of wells required for that
particular development. Early days, we can’t really say whether that’s the case or not."

If you compare this with the Bakken, and oil estimates vary,
500,000 sq kms
estimated 20 billion barrels
so 1 sq km gives 40,000barrels


East Texas oil field discovered 1930
covering ~600 sq km
so far produced 5.2 billion barrels
so 1 sq km gives 8.5 million barrels

Different horses for courses, but comparing these with CTP's half a million to 2 million barrels and trying to work out JH's strategy.

RAVI