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Commodities May 12, 2026 01:46 PM

Japanese Refiner Turns to Mexican Crude as Hormuz Disruptions Tighten Supplies

Cosmo Energy to take 1 million barrels of Isthmus crude amid Middle East supply strain; move marks first Mexican purchase in three years

By Marcus Reed

Cosmo Energy Holdings will receive 1 million barrels of Isthmus crude from Mexico in the coming days as Japan grapples with supply interruptions linked to the Iran conflict and the near-closure of the Strait of Hormuz. The shipment, loaded from Pemex’s Pajaritos terminal and provided by Pemex’s trading arm PMI, supplements supplies from the United States and is intended to sustain operations at Cosmo’s three refineries for the next three months.

Japanese Refiner Turns to Mexican Crude as Hormuz Disruptions Tighten Supplies

Key Points

  • Cosmo Energy will receive 1 million barrels of Isthmus crude from Mexico, loaded at Pemex’s Pajaritos terminal and supplied by PMI.
  • Japan sources over 90% of its crude from Middle Eastern producers - Saudi Arabia, the UAE, Kuwait and Qatar - who have been affected by the near-closure of the Strait of Hormuz.
  • Cosmo has arranged supplies from Mexico and the United States to keep its three refineries operating for the next three months.

Japan's dependence on Middle Eastern oil has prompted a notable procurement shift as a domestic refiner secures crude from Mexico. Cosmo Energy Holdings Co. is scheduled to receive 1 million barrels of Isthmus crude in the coming days, according to a shipping report. The cargoes will be loaded onto the vessels Eagle Kuantan and Eagle Kangar at Pemex’s Pajaritos terminal on Mexico's Atlantic coast and are being supplied by Petroleos Mexicanos’ trading arm, PMI.

Japanese crude imports are heavily concentrated in the Middle East, with over 90% sourced from countries including Saudi Arabia, the United Arab Emirates, Kuwait and Qatar. Those suppliers have been affected by the near-shuttering of the Strait of Hormuz, an interruption that has contributed to broader shortages reaching multiple Japanese industries.

Cosmo said it has lined up deliveries from both Mexico and the United States to keep its three refineries running through the next three months. The company framed the move as a measure to maintain operations in the near term amid strained global flows.

The procurement follows a diplomatic exchange earlier this year in which Japan's prime minister, Sanae Takaichi, discussed the potential for Pemex to supply oil to Japan during a conversation with Mexican President Claudia Sheinbaum about the Iran war.

Context and operational implications

For refiners and the logistics networks that support them, sourcing crude from Mexico represents shifts in long-haul tanker routing and scheduling. The vessels named to carry the Isthmus cargoes will load at Pajaritos on Mexico's Atlantic coast and transit to Japan, a route that substitutes for volumes Japan typically imports from nearer Middle Eastern suppliers.

Companies dependent on stable crude flows - including refiners, petrochemical manufacturers and sectors reliant on reliable energy inputs - may see near-term relief from diversified sourcing, while also facing the operational complexity of integrating different grades and logistics chains.

What remains uncertain

It is not clear from available information how long-term supplier mix or routing strategies will change beyond the three-month window Cosmo cited. The shipment represents a tactical response to current disruptions rather than a stated long-term reorientation.

Risks

  • Supply interruptions tied to the Iran conflict and the near-shuttering of the Strait of Hormuz continue to create uncertainty for Japan’s energy imports - impacting sectors that rely on steady supplies.
  • Heavy reliance on Middle Eastern crude - with over 90% of imports coming from that region - leaves Japan vulnerable to regional disruptions.
  • Cosmo’s solution covers only the next three months, leaving the longer-term stability of refinery feedstock and logistics routes uncertain.

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