Sandego.net – The US says it’ll crack down hard on any nation still trading oil with Iran, Treasury Secretary Scott Bessent declared Monday, framing the move as an “economic D-Day” for Tehran’s commercial partners. Though Bessent stopped short of naming a single country, analysts and officials pointed squarely at Beijing, which absorbs roughly nine-tenths of Iran’s exported crude.
Who’s buying Iranian oil, and why does Washington care?
One analysis estimated that Tehran shipped between $3.9 billion and $4.2 billion worth of oil in September 2025 alone. The U.S.-China Economic and Security Review Commission noted earlier this year that Chinese purchases represent approximately 90 percent of Iran’s oil exports, funneling tens of billions of dollars annually into Iran’s government budget and military apparatus. Bessent called Monday’s announcement a “warning shot,” though he stopped short of unveiling broad, country-specific measures.
“We find that the best way to engage with countries is through quiet diplomacy, and we are level-setting with every country to tell them our expectations. We know who they are. They know who they are.” — Scott Bessent, U.S. Treasury Secretary
Beijing pushed back quickly. Chinese Foreign Ministry spokesman Lin Jian told reporters that “sanctions and pressure tactics do not help in resolving issues” and will only produce escalation. The stakes are tangible: a Nomura report from April found that 38 percent of China’s oil imports and 23 percent of its liquefied natural gas transit the Strait of Hormuz, the same waterway at the center of the ongoing Iran conflict.
China has already trimmed its Iranian crude intake. Imports averaged roughly 1.4 million barrels per day before the war began but have slipped to around 700,000 barrels per day in recent months, driven by lower refinery runs and drawdowns from onshore stockpiles, according to Emma Li at Vortexa. Tianyue Hu of Rystad Energy told CNN that a complete halt in Iranian crude would likely have “a limited immediate impact” on China’s overall oil security given the prior reduction and still-substantial domestic inventories.
What this means for consumers and global energy markets
The US says it’ll crack down on Iran’s trade partners, but the precedent suggests the outcome is uncertain. India once imported large volumes of Iranian crude yet halted purchases in 2019 under U.S. sanctions pressure. A $1.1 billion bilateral trade relationship for goods such as rice and sugar persisted between April and December 2025, and India briefly resumed Iranian oil purchases in April of this year amid an energy crunch. Washington’s latest threat lands on an already strained U.S.-China relationship: the two powers fought a blistering trade war last year at the peak of President Donald Trump’s tariff rollout and have recently resumed tit-for-tat sanction exchanges. Daniel Tannebaum, a nonresident senior fellow at the Atlantic Council, told CNN earlier that China is “by far, the most impactful” target if the goal is to dent Iran’s financing capacity.
The broader question—how much oil is actually leaving the Strait of Hormuz—remains murky. U.S. Energy Secretary Chris Wright insisted the strait is open and flowing, while Iran disputes that claim. Third-party ship-tracking data suggested roughly half the volume Wright cited, and shadow-fleet tankers, which obscure ownership and destination, compounded the opacity. Ship-tracking platform Kpler reported this month that shadow transits accounted for about 50 percent of strait traffic in recent weeks, up from roughly 12.5 percent a month earlier.
For American consumers, the cost is already visible. The national average gasoline price stands at $4.10 per gallon, compared with last year’s average of $3.1
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