A US missile strike on an Iranian tanker has pushed gas and diesel prices to new highs and set up a rough week for oil markets, which is bad for drivers, borrowers, and anyone hoping the Iran conflict winds down soon.

• Four US missiles hit an Iranian tanker over a holiday weekend with no casualties, and oil futures are expected to top $100 when markets reopen.
• Diesel is at a record high and gas prices remain painful, with the US blockade keeping Iranian oil off the market since July.
• Inside the Pentagon, dozens of joint staff were given polygraph tests after leaks about the war and thin US munitions stockpiles — a sign of deep internal pushback on the strategy.
• The US is leaning on allies like South Korea and the UK to join in, and Koreans are pushing back hard against getting dragged into someone else's war.
• Rising borrowing costs are squeezing weak companies, with junk debt spreads at their worst since last year's tariff selloff, raising the odds of defaults.

Outlook: Expect oil above $100 and more pressure on shaky corporate borrowers when markets reopen, while Moscow talks led by Witkoff and Kushner offer a thin hope of a separate Ukraine truce.