The numbers come first. Before Iran's war with the United States, roughly a fifth of the world's oil trade passed through the Strait of Hormuz, the 20-mile-wide waterway separating Iran from Oman. More than 80% of that cargo was bound for Asia — primarily China, India, Japan, and South Korea.
Six months since the war began, the doomsday scenarios many predicted — price spikes, gas-station lines, blackouts, grounded flights — have not fully materialized. Increased production and large stockpiles blunted the damage, even as governments across Asia imposed export bans, cut import duties, and rationed fuel.
On Wednesday, Iran announced a new revenue-sharing agreement over the Strait, though a military spokesperson blamed the United States for 'obstructing this process,' according to the report. With a near-term U.S.-Iran deal reportedly on life support and Iranian control of the waterway looking secure for years, analysts warn the buffers that worked once may not work twice.
'Global oil and gas supply is still a major point of geopolitical leverage,' said Saul Kavonic, head of energy research at MST Financial, adding that hostile actors 'can threaten that for their geopolitical ends.' Carole Nakhle, CEO of Crystol Energy, said the war revealed 'how easy and inexpensive it has become to threaten very expensive energy infrastructure' with cheap drones.
Japan illustrates the exposure: the Middle East supplied 90% of its crude oil imports and roughly 11% of its liquefied natural gas before the war, and Tokyo imports 100% of its energy. 'If the LNG doesn't arrive, the lights go off and the country shuts down,' Kavonic said.
Rather than waiting on diplomacy, capital has moved on its own. Japan's Inpex formed a joint venture to expand LNG investment in Australia's Northern Territory. Kavonic called it 'boomtime' for Woodside and Chevron, LNG players with limited Middle East concentration, as oil majors ramp up gas investment elsewhere.
Exporters are diversifying too. Saudi Arabia is investing in ports on the Red Sea and Gulf of Oman, along with pipelines such as its East-West line, to bypass the Strait entirely. If those projects pan out, only 10% of the world's oil will need to transit Hormuz, down from 20% before the war. Gas remains the harder problem: unlike oil, LNG has no pipeline workaround, leaving Qatar to pursue diplomacy and new customers to keep its export routes open.
The market has already voted, and it voted for redundancy over dependence. No treaty forced Inpex, Woodside or Chevron to redeploy capital toward Australia and diversified LNG supply — the drone threat to a single strait did that on its own, faster than any government energy policy could.
That is the lesson for policymakers in Washington and Tokyo alike: chokepoints controlled by hostile regimes are a tax on free enterprise, paid in risk premiums and stockpiling costs. Private investment, moving toward ports, pipelines and LNG terminals outside Tehran's reach, is doing more to secure Asia's energy future than any negotiation over Hormuz's revenue-sharing terms. Capital rewards clear rules and diversified routes — Iran's leverage over a single waterway is the reminder of what happens when it doesn't get them.
