The ratcheting up of tensions between the United States and Iran could push an already red-hot supertanker market even higher with rates soaring to the highest level since 2019, analysts say. The daily rate for hiring a supertanker on the key Middle East-to-China route has surged threefold since the beginning of the year, to over $150,000. That’s the highest since 2020, per data from the Baltic Exchange cited by Bloomberg. The rally in freight rates for the very large crude carriers (VLCC) capable of carrying around…