Don't believe them. Iranian oilfields are way to the west and the proximate region of Iran has no oil. It is dry. And this whole idea of oil flowing down [in practice not in theory] is dumber than dumb. Laughable. Water car sounds more plausible!
The nearest oil wells in Iran are about 400 miles west and belong to the same cluster as UAE, Bahrain, Qatar. Hell if this was true we could 'pinch' UAE oil by simply drilling well deep under the sea and all the oil from Oman, UAE, Iran would flow into it.