The prospect of wider escalation in the Middle East if the US joins Israel's attacks on Iran is affecting marine insurance, freight and middle distillate prices, even though the flow of energy commodities out of the Mideast Gulf so far remains unfettered.
US president Donald Trump's repeated hints at a potential US role in Israel's bombing campaign against Iran prompted Iran's supreme leader, Ayatollah Ali Khamenei, to warn of "irreparable damage" to the US if it joins the attacks.
Trump in remarks to reporters at the White House today said he presented an "ultimate ultimatum" to Tehran and said of a potential US air raid on Iran, "I may do it. I may not do it. I mean, nobody knows what I'm going to do."
Khamenei in a televised address today denounced Trump's "absurd, unacceptable rhetoric to openly demand that the Iranian people surrender to him." Iran will oppose any "imposed peace", Khamenei said.
"The harm the US will suffer will definitely be irreparable if they enter this conflict militarily," Khamenei said.
The escalating conflict in the Middle East is causing a surge in Europe-bound freight rates for medium range tankers loading in the US Gulf coast. Mideast Gulf middle distillate premiums are at multi-month highs. Additional War Risk Premiums (AWRP) in the Mideast Gulf could rise sharply in the coming days as the number of insurance underwriters willing to commit at current levels appears to be shrinking.
Some LNG carriers that have held off from transiting the strait of Hormuz in recent days have since sailed through or have approached the strait, while no carriers loaded in the Mideast Gulf have slowed from sailing via the strait.
Few barriers to US participation
Domestically and internationally, there is no significant pushback against a potential US involvement.
The isolationist wing of Republican politicians and media figures loyal to Trump are urging him to avoid involvement in an Israel-Iran war.
A group of Democratic senators on Tuesday circulated legislation to require Trump to ask for congressional authorization to use force against Iran, but senate majority leader John Thune (R-South Dakota) would not commit to allowing a vote on the resolution.
"Dismantling Iran's nuclear program is what this is all about," Thune said in a televised interview Tuesday. "It can happen diplomatically, voluntarily, or can happen via force."
There is also no unanimity among the other G7 leaders on the future course of conflict. The group in a statement on 16 June that Trump endorsed called Iran "the principal source of regional instability and terror."
The Pentagon is ready to execute on any order by Trump, US defense secretary Pete Hegseth told a Senate panel today. Hegseth declined to say if Trump made any decision on an attack.
Mixed messages on talks
Trump claimed today that Iran's government has reached out to him for a diplomatic solution and has expressed willingness to send a high ranking official to the White House. The offer is "courageous", Trump said, but added that "I said it's very late to be talking."
Iran's mission to the UN subsequently denied a request for a meeting at the White House.
Trump said today that Russian president Vladimir Putin reached out with an offer to mediate in the Israel-Iran conflict. The conversation took place on 14 June, according to the Kremlin.
"I said, do me a favor, mediate your own," Trump said, referring to Russia's war in Ukraine. "Let's mediate Russia first. Okay?"