June 30 - Oil prices moved lower on Tuesday as market participants monitored the potential for talks between U.S. and Iranian representatives in Doha amid recent exchanges of missile fire that challenged an interim ceasefire in a four-month-old conflict.
As of 0038 GMT, Brent August crude futures - which expire on Tuesday - were down 1.03%, or 75 cents, at $72.40 a barrel. The more actively traded September contract fell 0.54%, or 40 cents, to $73.51 a barrel. U.S. West Texas Intermediate slipped 0.66%, or 47 cents, to $70.32 a barrel.
Investors have been parsing mixed signals from the region as they price the chance that diplomacy in Doha could ease tensions that have disrupted flows through the Strait of Hormuz. Tim Waterer, chief market analyst at KCM Trade, said the market is trading on cautious optimism while remaining guarded until there are clearer signs of de-escalation.
"Investors are pricing in hopes of a positive outcome from the Doha talks, even though real normalisation of flows through the Strait of Hormuz is not yet visible," Waterer said. "The market is cautiously hopeful but still hedging its bets until we see more tangible signs of de-escalation."
Iranian Deputy Foreign Minister Kazem Gharibabadi told state television on Monday that Iranian and Omani experts will begin talks in the coming days to redefine transit paths through the Strait of Hormuz, and said Iran would seek to obstruct vessels travelling outside any newly defined routes.
At the same time, Iran's Foreign Ministry spokesperson Esmaeil Baghaei said there would not be negotiation meetings with the American side at any level in the coming days.
U.S. President Donald Trump commented on the potential Doha meeting, telling reporters in the Oval Office: "The meeting in Doha is going to be perhaps important, perhaps not. We're going to find out."
The possibility that talks may or may not take place underscored how fragile the June 17 agreement to pause fighting remains. That ceasefire - aimed at reducing attacks that have disrupted global oil flows through the Strait of Hormuz - continues to be tested by intermittent strikes and exchanges of fire, leaving traders uncertain about a durable return to normal shipping patterns.
Israel has not participated in the U.S.-Iran talks and has publicly distanced itself from the agreement, adding another layer of diplomatic complexity to the situation.
Despite recent ship attacks in the Strait of Hormuz and renewed strikes between U.S. and Iranian forces in recent days, shipping data indicated Middle East producers were continuing to load oil and liquefied natural gas. That maintenance of export activity has been a factor in prices easing since the peak of disruption.
Analysts at Goldman Sachs, in a note dated June 29, said that "assuming Persian Gulf flows continue to recover at the same average pace as over the last two weeks... Gulf flows could return to pre-war levels of 23 million barrels per day already by early July." The analysts also noted that traffic last week hit its highest level since the conflict began at the end of February.
Market participants are therefore balancing the potential for diplomatic progress against the clear limitations and conflicting statements coming from officials on both sides. Until there are sustained and verifiable signs of de-escalation and a consistent normalization of sea-borne flows, traders say the market will likely remain in a cautious posture.