Oil Slumps 4% on U.S. Rail Agreement, Demand Concerns

OIL PRICE - NEW YORK. Oil futures fell about 4% to a one-week low on Thursday on a tentative agreement that would avert a U.S. rail strike, expectations for weaker global demand and continued U.S. dollar strength ahead of a potentially large interest rate increase.

Brent futures fell $3.75, or 4.0%, to $90.35 a barrel by 10:50 a.m. EDT (1450 GMT), while U.S. West Texas Intermediate (WTI) crude fell $3.58, or 4.1%, to $84.90.

That puts both benchmarks on track for their lowest closes since Sept. 8.

U.S. railway parties have agreed to a cooling-off period as a standard part of the ratification process after reaching a tentative deal overnight, a move that would avert any shutdown in case unions fail to ratify it, according to a source familiar with the situation.

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The prospect of a strike lent the market some support on Wednesday.

That rail deal also helped pressure U.S. diesel and gasoline futures to drop over 5% during the session.

"The oil complex is drafting back down on U.S. dollar strength and the tentative agreement that would avert a U.S. rail workers strike," analysts at energy consulting firm Ritterbusch and Associates said, noting crack spreads were weak.

The U.S. 3:2:1 crack spread - a measure of refining profit margins - was on track for its lowest close since late February.

The U.S. dollar, which hit a 20-year high versus other currencies on Sept. 6, has remained close to that peak on expectations the U.S. Federal Reserve will keep boosting interest rates aggressively.

A stronger dollar reduces demand for oil by making the fuel more expensive for buyers using other currencies.

The International Energy Agency said this week that oil demand growth would grind to a halt in the fourth quarter.

Crude prices have dropped substantially after a surge close to its all-time highs in March after Russia's invasion of Ukraine added to supply concerns, pressured by the prospects of recession and weaker demand.

New clashes between Armenia and Azerbaijan, an oil producer, linked to a decades-old dispute between the ex-Soviet states raised another risk to supplies, although a senior Armenian official said on Wednesday a truce had been agreed.

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"Whilst challenging the $100 hurdle is currently not a dead cert, it seems that a bottom at around $90 has been found basis Brent, largely thanks to war-related supply fears," said Tamas Varga of oil broker PVM.

Other factors weighing on oil prices included an increase in U.S. crude inventories and an expected reduction in energy use by the Ethereum blockchain.

U.S. crude stocks rose by a more than expected 2.4 million barrels, boosted by a record weekly release from the Strategic Petroleum Reserve, which is scheduled to end next month.

The European Union's executive, meanwhile, plans to raise more than 140 billion euros ($140 billion) to shield consumers from soaring energy prices by skimming off revenues from low-cost electricity generators and making fossil fuel firms share windfall profits.