Oil gained as stalled US–Iran peace talks and tightening fuel stocks lift forward benchmarks

Global crude oil futures advanced on Wednesday, capping steep monthly gains as stalled US–Iran diplomatic talks and substantial draws in US refined fuel inventories outweighed rebounding Persian Gulf crude export flows.

Upstream bullish momentum resumed after US President Donald Trump rejected reports suggesting Washington was prepared to grant sanctions relief or unfreeze Iranian funds in exchange for nuclear concessions, tempering optimism surrounding Qatari-mediated shuttle diplomacy. The diplomatic impasse re-inflated risk premiums, even as Saudi Arabia maintained crude loadings from its Red Sea hub of Yanbu and overall Gulf exports rebounded toward 23.3 million barrels per day over the past week, returning in line with 2025 pre-conflict averages.

Price gains were reinforced by sharp contractions across US fuel stockpiles, with the Energy Information Administration reporting a 2.3-million-barrel drop in distillates and a 1.7-million-barrel draw in gasoline, despite a 922,000-barrel build in commercial crude stocks. Market sentiment was further buoyed by cooler-than-expected US August inflation data, which eased pressure on the Federal Reserve to raise interest rates in October, while ongoing speculation over potential US diesel export curbs kept the transatlantic Brent–WTI premium stretched to a four-month high.

Underlying energy markets remained underpinned by acute global middle-distillate shortages, prompting the White House to press European allies to tap emergency diesel reserves while considering regulatory relief for untaxed red-dyed diesel ahead of November elections. With OPEC+ poised to roll over its output targets on Sunday, persistent refining bottlenecks and elevated freight tariffs continue to sustain a formidable cost-push floor across downstream petrochemical cracking operations.