yatchy,
The move appears to be based on three things.
As foreshadowed in yesterdays ann a significant deal with Indian oiler BCPL.
A possible takeover (see yesterdays posts on HC.)
Reserve upgrade with the puffin field and a realisation that this stock is undervalued.
A combination of all three could really drive this stock higher, especially if and when the BCPL ann is confirmed.
This is still a speccy stock so DYOR and goodluck.
Pulse.