I should point out that gas prices in Tunasia seem to be about double that of the US. As far as I can find out they seem to be linked to 80% of the Mediterranean LSFO (low sulphur fuel oil) price. So at $80bbl that makes the gas price at around $8/MCF (which is about $8.40/GJ). All USD. So the potential value Sidi Daher is higher than I estimated. However its all still very much blue sky!