For the first four months of the war between the United States and Israel and Iran, oil traders remained largely bearish. The overwhelming expectation was that the war would end soon—even as July rolled around—and oil flows out of Hormuz would recover. Instead, the world is slipping into a fuel shortage, and traders have gone bullish. They are especially bullish on fuels in the United States, it seems. The world’s biggest crude oil consumer and the biggest exporter of crude and fuels has not managed to avoid a supply squeeze at…