Everyone's a Chemist now! Try looking at the history of South American oils. All sour.
Four hits, possibly four sour oil/gas finds
Well if they can't finish this one, what's the point of going back to Isobell?
S52 09 21.33 W55 45 16.00 if you could see this that is.
heading is towards Fastnet Sentinel the standby saftey ship.
ER started moving SW at approx 11.20am (presume GMT) at 0.6kn
Second drill at angle to relieve well of methane is my guess, but yo can't see this can you.