The Islamic Republic is increasingly relying on decades‑old tankers for emergency floating storage amid a US-led naval blockade that restricts exports.

The blockade, launched April 13, has sharply limited commercial movement through the Strait of Hormuz, trapping most Iranian crude near its coastline.

Islamic Republic's onshore storage facilities are nearing capacity, forcing them to bring vessels like the Nasha back into service.

Officials and analysts say these ships act as temporary buffers, preventing wells from shutting down and causing permanent reservoir damage.

The Islamic Republic needs a continuous oil flow to keep pipelines functioning and safeguard terminal infrastructure from potential airstrikes.

Floating tankers allow the system to operate while moving crude away from high‑value locations frequently threatened by American and Israeli forces.

US naval superiority has made it difficult for tankers to reach China, the Islamic Republic's primary customer, effectively stranding crude at sea.

Maritime intelligence from United Against Nuclear Iran (UANI) estimates nearly 190 million barrels, about 50 days of output, are currently held aboard tankers.

That volume represents a record level of floating storage for the Islamic Republic, highlighting the pressure created by sustained regional military operations.

Energy specialists warn that the strategy is only a temporary lifeline, buying time but not solving the Islamic Republic regime's worsening storage crisis.

If the blockade persists into May, analysts believe the Islamic Republic may be forced to slash production due to insufficient remaining capacity.

Such cuts would strike directly at the Islamic Republic's most important source of revenue, compounding the economic strain imposed by the standoff.

The aging tankers also pose safety concerns, increasing risks of mechanical failures as they remain anchored for extended periods.

For now, the Islamic Republic regime is prioritizing continuity, but observers say its options are rapidly narrowing as pressure intensifies.