China's Purchases of Iranian Crude More Than Halved in June Despite Sanctions Waiver; Over 20 Million Barrels Now Stranded at Sea (Tuesday, July 7, 2026)

Lead

China's imports of Iranian crude oil more than halved in June 2026, falling to about 654,000 barrels per day, according to Bloomberg (Thursday, July 2, 2026) and CNBC (Monday, July 6, 2026), both citing tanker-tracking data from Kpler. The decline came even as Washington had opened a temporary window for Iranian oil sales starting June 22, 2026. The result is an unprecedented buildup of more than 20 million barrels of Iranian crude idling in tankers across Asian waters, up 18% from the week before. China is Iran's largest buyer of sanctioned oil, so slower purchasing by Chinese refiners can slow the flow of oil-export revenue that underpins the Central Bank of Iran's foreign-currency reserves, one of the key factors behind the dollar's rate on Iran's free market.

Background

The sequence began on June 17, 2026, when Iran and the United States announced a temporary agreement to de-escalate tensions. Five days later, on June 22, the US Treasury's Office of Foreign Assets Control (OFAC) issued "General License X," authorizing the production, shipping, insurance, financing, and sale of Iranian-origin crude oil and petroleum products through 12:01 a.m. EDT on August 21, 2026, with no guarantee of automatic renewal. Markets initially expected this narrow window to spur Chinese buyers to make up for purchases missed during the sanctions standoff. A month of data shows that has not happened. For scale, global Brent crude averaged about $106 a barrel in May during the height of the Iran-Israel conflict; it has since retreated to around $72, reflecting the fading war-risk premium and the gradual reopening of the Strait of Hormuz, which has also lifted global oil supply.

Key figures

Drivers

Fereidun Fesharaki, chairman emeritus of energy consultancy FGE NexantECA, told CNBC's Squawk Box Asia (July 6, 2026) that "the Chinese do not show any enthusiasm to buy much oil from anybody." He said China's strategic and commercial reserves currently cover roughly 100 days of demand, so there is no urgent need to restock; Beijing, in his view, would likely only step up active buying if crude fell into the $65 to $70 a barrel range, a band Brent and WTI are now hovering near. At the same time, OPEC+'s third consecutive monthly output increase (including a 188,000 bpd hike for August, confirmed June 26) and the recovery of Persian Gulf oil exports through the Strait of Hormuz to pre-crisis levels have added more legal, lower-risk Gulf barrels to the Chinese market, eroding some of the price advantage that made sanctioned Iranian oil attractive. Another factor is General License X's August 21 expiry: with no guarantee of renewal, large buyers are wary of committing to longer-term contracts.

Outlook

Energy analysts, including Fesharaki, say that if Chinese buyers' reluctance persists through the OFAC waiver's August 21 expiry, the volume of Iranian crude idling at sea could keep growing, adding pressure on Iran's oil-export revenue flow. Fesharaki has also said a full return of oil supply to the global market before 2027 looks unlikely. These are the analysts' own assessments, not a firm forecast or financial advice.

What to watch

Weekly updates to Kpler and Vortexa tanker-tracking data on the volume of Iranian crude idling at sea, whether General License X is renewed or allowed to lapse on August 21, 2026, and how Brent crude responds to the $65 to $70 range that Fesharaki says could draw Chinese buyers back are among the things worth following in the weeks ahead.

Disclaimer

This report is for educational and informational purposes only and does not constitute investment advice. All figures are dated and subject to change; verify them against official, up-to-date sources before making any financial decision.