It must be some kind of bussiness disagreement, apparently the romanians were drilling for the iranians in iranian waters and suddenly they want their rigs back, which doesn't seem to please their hosts, and there is some shady Dubai company in the middle of it all.
It's surprising (or not) how the guy pointing the obvious first question (why the hell are a bunch of romanians drilling off the iranian coast) is jumped upon by the usual zealots.