I am guessing the timing of the 20th March Farm Out Potential RNS was done because on the 21st of March there was a meeting of the FIG, where one of the topics was an add on to the FOGL drilling program.
http://www.epd.gov.fk/wp-content/uploads/1.0%20March%20agenda%20front%20page.pdf
So given the change was likely, imo, the application to drill a 3rd well, if the farm out goes ahead, its why they RNS'd on the 20th March.
The farm out means FOGL can :
Drill 3 wells and do a 3D seismic study starting Q4 and still, after all that is paid for, including demob costs - have well over 100 million US$ in the bank - therefore meaning there is no need for any fund raising until the 3D is complete in 2013 and a new CPR is done.
If FOGL only drill 2 wells and do 3D in Q4 they will end up with nearly 150 million US$ cash in the bank as they issue their CPR in 2013, meaning they could fund another 2 wells in later 2013 with their farm in partner without the need for any further fund raising.
A very nice position to be in, and lets hope the farm out going ahead news is coming very soon.