Forward to the Farm In, page-582

If the field is pumping say 100K boe per every day, which never happens down time maintenance ect, it would take ~ 41 years to empty the reservoir/s based on 1.5 billion barrels of oil equivalent or the 100% of the field.
Yes the price you quote is the delivered price but 1 TCF net to IVZ would take ~ 15 years to pump out.

I personally think the game plan is to produce energy for Zimbabwe first and foremost, 2 x MOU is a hint, then off to the rest of Southern Africa.
I think Scott wants to truly turn Zimbabwe around and a discovery of this size would do that IMO.

Loooong way to go yet though.
The PSA done and dusted is first cab off the rank then hopefully closely followed by a farm out.
I do hope once they farm out they get their skates on.