An Iranian crude shipment that was initially bound for India has unexpectedly altered course midway, now signalling China as its destination.

The Aframax tanker Ping Shun, built in 2002 and sanctioned by the United States in 2025, had earlier declared Vadinar in Gujarat as its port of call. This would have marked India’s first purchase of Iranian crude since 2019, a significant development given the country’s historical reliance on Iranian oil. 

However, ship-tracking data now shows Dongying in China as the declared destination, underscoring the fluidity of such transactions.

Analysts suggest that the rerouting is linked to payment difficulties. Sellers of Iranian crude are reportedly tightening financial terms, moving away from the traditional 30–60 day credit window and demanding upfront or near-term settlement.

With Iran still cut off from the SWIFT banking system, conventional payment channels remain blocked, complicating transactions. India had previously relied on Euro payments via Turkish intermediaries, but that option is no longer viable. This financial uncertainty appears to have influenced the tanker’s sudden change of course.

The cargo aboard Ping Shun is estimated at 600,000 barrels, loaded from Kharg Island in early March. Its declared arrival at Vadinar was scheduled for 4 April, coinciding with the temporary US sanctions waiver that allows countries to purchase Iranian oil at sea until 19 April.

While the waiver was intended to ease global oil prices, the lack of clarity around payment mechanisms has left buyers cautious. India’s oil ministry has reiterated that techno-commercial feasibility will guide any decision on resuming Iranian imports.

Historically, India was a major buyer of Iranian crude, importing over half a million barrels per day in 2018. The compatibility of Iranian light and heavy grades with Indian refineries, coupled with favourable commercial terms, made Iran a key supplier.

However, imports ceased in May 2019 following renewed US sanctions, forcing India to diversify toward Middle Eastern and US grades. At its peak, Iranian crude accounted for more than 11 per cent of India’s total imports, highlighting the scale of the disruption.

The current episode illustrates how commercial terms are now as critical as logistics in determining Iranian crude flows.

While China has remained a consistent buyer, India’s re-entry into the market hinges on resolving payment challenges.

Analyst Sumit Ritolia of Kpler noted that the diversion of the tanker Pin Shun was linked to payment issues, with sellers tightening terms from 30–60 day credit windows to upfront or near-term settlement. The identities of the buyer and seller remain unclear. Vadinar, home to Rosneft-backed Nayara Energy’s 20 mtpa refinery, was a possible destination.

Ritolia highlighted that while such mid-voyage changes are common with Iranian crude, they underscore rising sensitivity to financial terms and counterparty risk. If payment hurdles ease, the cargo could still reach India, though the episode shows commercial terms are now as decisive as logistics in shaping Iranian crude flows beyond China.

India’s oil ministry maintains that resumption of Iranian crude imports will depend on techno-commercial feasibility.

If financial arrangements can be secured, the cargo could still be redirected to India. For now, however, the rerouting of Ping Shun underscores the fragility of trade flows under sanctions and the growing influence of financial risk in shaping global oil dynamics.

PTI