Brent crude futures fell $0.11, or 0.11%, to $104.61/bbl by 06:27 GMT on Monday 12 October, as traders priced the prospect of a proposed Russia-Ukraine energy ceasefire and a US diesel supply arrangement with Moscow unlocking additional Russian barrels, Reuters reported.

US West Texas Intermediate (WTI) crude traded at $91.36/bbl, down $0.49, or 0.53%. Both benchmarks had declined by more than 1% earlier in the session before paring losses — Brent holding above the $100/bbl mark on continued Middle East instability.

What did the US-Russia diesel deal deliver?

US President Donald Trump stated that Ukraine and Russia had agreed to halt attacks on one another's energy facilities, following a new diesel supply deal. The arrangement puts Russian middle-distillate barrels back into the global freight lane.

Trump said on Friday that Russia would supply more than 300,000 t — equivalent to 2.25 million barrels — of diesel "immediately" to US and global markets. He added that:

• Russia would send a further 500,000 t of diesel in November;
• an additional one million tonnes would follow soon after.

For scale, global daily diesel consumption runs close to 29 million barrels, according to the International Energy Agency (IEA). The promised Russian volumes are meaningful but not market-clearing on their own.

How firm is the ceasefire?

Details remained thin. Ukrainian President Volodymyr Zelenskiy said he was awaiting more information, and Russian officials offered no immediate comment. Traders treating the supply resumption as a done deal are therefore working off an unratified framework rather than a sanctioned agreement.

IEA executive director Fatih Birol urged member countries on Sunday to consider whether extra diesel releases might be needed, and asked those that had not yet delivered promised supplies to accelerate their contributions, with diesel as the priority barrel.

Why is Brent still above $100?

Middle East risk premia continue to underpin crude. The Houthis said they carried out an attack on Riyadh's international airport on Saturday that killed 13 people and injured more than 300, with additional injuries reported in a fresh attack on Sunday. President Trump indicated the US was considering joining Saudi strikes against the Houthis.

The Strait of Hormuz saw further tanker incidents this month, according to the United Kingdom Maritime Trade Operations (UKMTO):

• incidents reported near Sohar anchorage, Oman;
• damage to another vessel transiting the strait.

Any sustained disruption through Hormuz would offset the bearish effect of returning Russian diesel volumes.

What is happening in the Gulf of Mexico?

Closer to the upstream desk, Shell, Chevron and bp were working to redeploy staff and restore platform production after Hurricane Isaias hit the area early on Saturday. The storm forced evacuations across US Gulf of Mexico assets, and the pace of crew re-boarding will determine how quickly shut-in volumes return to market — a near-term swing factor for US supply balances.

The watch items

Three variables now frame the diesel and crude curves: confirmation — or collapse — of the Russia-Ukraine energy ceasefire terms; the actual loading dates for the 300,000 t immediate diesel tranche and the November 500,000 t follow-on; and the pace of Gulf of Mexico restarts as Shell, Chevron and bp re-crew their platforms. Whether IEA members release additional diesel stocks, as Birol has requested, sets the fourth.