Iran’s Oil Storage Capacity Could Fall to Just 12 Days Amid US Blockade: Kpler

Kpler said no tanker has cleared the U.S. blockade around Iran’s ports, with exports collapsing and stockpiles rising fast.

U.S. forces patrol near Iranian-flagged cargo ship M/V Touska after it was boarded and seized, at a location given as the Arabian Sea, in this handout image released on April 20, 2026. U.S. Central Command via X/Handout via Reuters

Iran is nearing forced oil production stoppages as storage tanks fill rapidly, with usable capacity potentially falling to as little as 12 days, according to an April 27 update from Kpler, a commodities data firm that tracks global oil, gas, and shipping flows.

The firm said the U.S. blockade is beginning to “materially disrupt Iran’s oil flows,” with loadings collapsing and storage filling rapidly.