Russian diesel imports Odds Sink to 28% After the Tanker Story Falls Apart

Russian diesel imports went from long shot to coin flip and back again in about 48 hours. After Donald Trump said he struck a deal with Vladimir Putin to buy Russian diesel, the Treasury issued a license allowing it, and Polymarket briefly priced a real US delivery by October 31 near 47%. By Monday morning, the same market had cooled to 28%.

What actually happened

The paperwork is real. OFAC General License 135, dated October 9, 2026, authorizes transactions tied to the sale, delivery, offloading and importation, including into the United States, of diesel fuel of Russian origin. It runs until 12:01 a.m. eastern daylight time on April 7, 2027. OFAC listed it on its recent actions page the same day.

There is one carve-out. The license does not authorize debits to accounts at US financial institutions held by the Central Bank of Russia, the National Wealth Fund or the Russian Ministry of Finance.

The deal itself came from Trump. AP, as carried by NPR, said he announced it on social media after a call with Putin, saying Russia would immediately supply more than 300,000 tons of diesel, then 500,000 tons in November and 1 million tons after that. The Kremlin said Russia "confirmed its readiness to supply oil and oil products to the American and global markets."

Why the hype cooled so fast

The first big "proof" turned out to be wrong. Early reports said the Greek-flagged tanker Minerva Zen was carrying roughly 275,000 to 280,000 barrels of Russian diesel and gasoil toward the US. The Defense News now reports, citing TankerTrackers and updated Vortexa data, that it is carrying urea ammonium nitrate fertilizer for EuroChem North America to Wilmington, North Carolina.

That vessel also left St. Petersburg on September 22, well before the October 9 deal. So even the "tanker is already on the way" story never fit the market's rules. We can't say for sure that the correction drove the drop in odds, but the timing lines up.

Supply is the other question. Meduza earlier reported that Russia had a ban on diesel exports by producers through the end of October, imposed after Ukrainian strikes on refineries. The Defense News says Russia partially lifted those restrictions on October 10, allowing an initial 500,000 metric tons onto international markets. Real Russian diesel imports to the US would still need separate cargoes and commercial deals.

What Polymarket thinks

The Polymarket market has done about $127,300 in volume, with about $45,100 of that in the past 24 hours. At 06:09 UTC on October 12 (09:09 MSK), Yes traded at 28%, with a bid of 27 and an ask of 29. That is down 19 points from a day earlier, when an October 11 snapshot had Yes near 47%.

The rules are strict. Yes needs Russian-production diesel physically delivered to a US port or US territory for commercial or government use inside the country by October 31, 11:59 p.m. ET. Fuel carried as a ship's own bunker fuel, held in bond for re-export or just passing through does not count.

The import also has to be credibly reported as part of the October 9 agreement, or be authorized under GL 135 or a successor license. So the bar is a real cargo, landed and reported, inside about three weeks.

The license exists. The market is now asking whether a ship can.

What could still go wrong

A lot has to happen in a short window. The license only removes the US sanctions barrier. Buyers still have to sign deals, ships have to load in Russia and cross the Atlantic, and the cargo has to land for domestic use, not transit.

Politics can also move the goalposts. AP reported that a bipartisan law Trump signed last month directs sanctions on top buyers of Russian energy, and the deal has drawn criticism from Ukrainian and European officials. A reversal or a quiet delay would hit the Yes side fast, while one confirmed cargo would send it back up.

What to do as a reader

Treat Russian diesel imports as a logistics question, not a headline question. Watch for the boring signals: named cargoes, loading reports from Russian ports, US port arrival stories and any Treasury or White House statement about a first delivery. Be careful with tanker rumors; the Minerva Zen story shows how fast they get corrected.

For energy-market context, see our Hormuz traffic odds explainer and the Iran ceasefire odds breakdown. Keep positions small if you trade this; a market this young can swing 20 points on one corrected report. Nothing here is investment advice.