Image Credit : Google Maps. Point A shows the location of the Natural Gas discovery announced 5th July 2010. Point B shows the point at which the yacht “The Kingdom of Bahrain” was seized by Iranian Authorities in late November 2009
Iran has been playing a game of gentle brinkmanship with the major military powers over its nuclear ambitions for the last few years. Its civilian nuclear ambitions, that is.
The United Nations Security Council imposed a new bag of sanctions against Iran in June, and since then various Iranian aircraft have been refused refuelling by that paragon of commercial virtue BP, amongst other things :-
https://www.guardian.co.uk/world/2010/jun/09/iran-sanctions-united-nations-nuclear