Crude oil has fallen to a two-month low as energy traders bet that the Strait of Hormuz will soon reopen, draining the war-risk premium that pushed prices toward $100 a barrel earlier this spring. US benchmark West Texas Intermediate settled at $84.88 on Friday, capping a week of declines built almost entirely on diplomacy rather than supply data.

The trigger is the prospect of a US-Iran agreement that President Trump says will be signed on Sunday, with the strait reopening to all shipping immediately afterward. The waterway at the mouth of the Persian Gulf carries close to a fifth of the world's seaborne oil, and its closure during the crisis kept a persistent premium baked into futures.

WTI crude, front-month futures ($/barrel) Source: Yahoo Finance · daily closes
$84.88 May 21 Jun 12

The move down has been steep and recent. WTI traded above $96 a barrel in late May before sliding through the $90s as ceasefire talk firmed, dipping to $87.36 on May 29 and then grinding lower into June as a deal looked increasingly likely. Friday's close was the lowest in the run.

For oil markets the logic is straightforward: barrels that have been bottled up or routed around risk would return to their normal path, easing the supply anxiety that drove prices higher. Even before any signature, the mere expectation of reopened tanker lanes has been enough to pull the war premium out of the market.

The repricing has rippled into equities, where stocks steadied this week as the threat of a wider regional war receded. Wall Street has also juggled a heavy calendar of corporate news, from a record-breaking market debut for SpaceX to merger headlines, but the dominant macro driver has been the path of the Iran standoff.

Risks to the trade remain. Iranian state media have been more cautious than the White House about the Sunday timeline, and any slippage in the signing — or doubts about whether the strait reopens cleanly — could put the premium back into crude as quickly as it came out.

Reopening the waterway in practice will also take more than an announcement. Insurers must restore war-risk coverage for vessels, military postures on both sides must unwind, and tanker traffic must rebuild confidence in safe passage — a process measured in weeks, not the hours of a signing ceremony.

For now the market is trading the headline. With WTI near $85 and the deal billed as imminent, oil has already priced in a good deal of the relief a reopening would bring, leaving prices exposed to a sharp reversal if Sunday disappoints.