Butane Hits 30-Year High in NWE at $1,125/t on Trade Flow Shock

Northwest European butane prices reached $1,125/t by early November — a 30-year high that exceeds even the peaks recorded after Russia's invasion of Ukraine. The surge is global: the AFEI butane index in Asia stood at $1,180/t on November 3, while US Mont Belvieu butane climbed to a 14-year high of $920/t, according to analysis by Natalia Katona for Oilprice.com.

What broke the old trade map?

The trigger sits in the reorientation of LPG flows since the US-Iran war began in March. Before the conflict, the US supplied roughly 45–50% of global LPG exports and the Middle East another 30–35%. After the crisis began, the Gulf's share collapsed to 11%, and the US share rose to 65%.

Asia absorbed much of the replacement volume. From April through October, US propane and butane covered as much as 75% of Asian imports, drawing cargoes away from other destinations. That share eased to about 55% in October as UAE, Kuwait, Qatar and Saudi deliveries gradually recovered — but Gulf LPG exports remain far below pre-crisis levels even as oil flows rebound.

The result shows up directly in Europe. October butane imports into the Amsterdam-Rotterdam-Antwerp hub fell to a multi-year low of 130,000 tonnes, down 34% year on year.

The core point for practitioners: Gulf barrels are returning, but not fast enough to loosen Asia's reliance on US cargoes, and Europe is paying for it.

Why can't propane substitute for butane?

Composition limits the fix. US LPG exports run roughly 75% propane and 25% butane, while Indian and many other Asian cooking-gas markets prefer a blend closer to 50:50, using butane to maintain vapour pressure in warm climates. More American propane cannot fully replace missing Middle Eastern butane.

India felt this hardest. Roughly 87% of its LPG imports came from the Gulf at the crisis outbreak, with the UAE and Qatar together accounting for half. Imports fell from 2.03 million tonnes in February to 1.17 million tonnes in March — a drop of more than 40%. The government ordered refiners and petrochemical complexes to maximise LPG output and prioritise households; some consumers switched to piped natural gas, though higher costs and only partial indirect state support limited the relief. Recovering Gulf imports and heavy reliance on US cargoes now give Indian refiners room to ease emergency LPG production and restore petrochemical output.

Where is the incremental demand coming from?

China adds a structural leg. Five new MTBE plants opened in 2025, adding a combined 3.4 million t/year of capacity and pulling in imported butane as feedstock. Because producers export MTBE to other Asian markets, Europe and Latin America, overseas demand sustains butane purchases even when Chinese gasoline consumption is subdued.

Seasonality compounds the squeeze. Winter gasoline specifications in the US and Europe require more butane blending from October through March, so American producers now compete directly with overseas buyers. US butane exports hit a record 2.4 million tonnes in May, then fell to 1.55 million tonnes in October — still 12% higher year on year. Asia took 840,000 tonnes, or 54%, of October shipments; Europe received only 105,000 tonnes, roughly 7%.

Operational problems tightened US availability further: Energy Transfer declared force majeure at its Nederland terminal in Texas, and a compressor outage disrupted butane loadings at Freeport last month.

Is the arbitrage closing?

Asia's pull on US cargoes is approaching a commercial limit. US butane at $920/t plus roughly $320/t freight to India yields a delivered cost of $1,240/t; the landed US-versus-AFEI spread sits at $50–60/t, making the trade unattractive. In April that spread reached minus $300–400/t, a strong incentive to ship east. For the flow to resume, US prices or freight must fall, or Asian prices must rise — and winter blending demand works against the first option while the second deepens the burden on importers already struggling with expensive energy.

The watch item is maritime security in the Strait of Hormuz. Renewed US-Iran hostilities would push India back into long-haul markets just as Chinese industrial demand and European winter consumption compete for the same barrels.