The anatomy of today's oil move is familiar. President Trump posted on Truth Social Saturday that a deal with Iran was "largely negotiated," described a memorandum of understanding covering the Strait of Hormuz reopening, and named eight regional countries involved in finalizing the terms. Oil fell sharply on the news. By Sunday, Trump was walking back the timeline, saying he would not "rush into a deal." By Monday morning, Iranian officials had made clear that the Strait's status remained the central unresolved point -- and that Tehran views it as a matter for its coastal states, not for Washington.
Canadian investors who have been watching the Hormuz situation since March have seen this pattern before. The question worth examining carefully is why it keeps recurring, what it means for the base case, and what the correct portfolio implication actually is.
The Precedent: April 8 and What Followed
On April 8, 2026, the U.S. and Iran agreed to a two-week ceasefire. Iran's Foreign Minister Araghchi confirmed that safe passage through the Strait would be permitted during the ceasefire window, coordinated with Iran's armed forces. WTI fell approximately 16% in a single session, from above $110 to $93.80. Brent fell a similar magnitude. Energy stocks on the TSX sold off sharply. The ceasefire was described at the time as a breakthrough.
What followed: the ceasefire held in limited form but the Strait did not reopen to normal commercial traffic. Ship-tracking data showed vessel crossings recover from near-zero to a trickle -- three LNG tankers reported passing through in late May under specific conditions. The TSX energy index recovered. WTI climbed back above $96 before this weekend's diplomatic news brought it lower again.
The chart below shows WTI's path through the three major diplomatic signals since the conflict began, with the April 8 precedent central to understanding today's move.
WTI has now produced three significant diplomatic-signal-driven price moves since the Hormuz closure on March 4: the April 8 ceasefire (-16%), the May 5 re-escalation (recovery to $100+), and the May 25 MoU headlines (-5.3%). Each prior signal reversed within weeks as the underlying Strait closure remained in effect.
The chart above shows the pattern clearly: diplomatic signals move oil sharply, but the Strait's actual status has governed the sustained price level throughout.
What Is Actually Unresolved Today
The specific disagreements as of Monday morning are not minor procedural gaps. Iran's Foreign Ministry stated Sunday that the Strait of Hormuz "should be a matter for its coastal states" -- a direct rejection of any U.S. role in managing Hormuz access under a peace agreement. Iran's chief negotiators, Parliament Speaker Ghalibaf and Foreign Minister Araghchi, flew to Doha on Monday with Iran's Central Bank Governor in tow, specifically to address the Strait's status and Iran's frozen assets. If these questions were resolved, the Doha trip would not be necessary.
The MoU framework reportedly includes a 60-day window for broader negotiations after initial signing. Even in the optimistic scenario where the MoU is signed this week, the Strait reopening is a subject for further talks -- not a guaranteed outcome of the MoU itself. Saudi Aramco CEO Amin Nasser warned on May 19 that if the Strait remains blocked beyond mid-June, oil market normalization will not occur before 2027. That deadline is 22 days from today.
The Canadian Portfolio Implication
The correct portfolio read for Canadian investors is not "deal is coming, sell energy." It is more specific and more conditional than that. The base case -- the most likely outcome given the pattern of the past twelve weeks -- is continued negotiation, partial diplomatic progress, and a Strait that remains substantially closed for a period measured in weeks or months rather than days. Under that base case, Canadian energy companies remain structurally well-positioned: oil above $90, strong free cash flow, and a geopolitical narrative that has repeatedly demonstrated its capacity to re-escalate.
The tail risk worth monitoring is a genuine, rapid deal -- one that produces an MoU this week with specific, verifiable commitments on Hormuz reopening and a timeline that holds. That scenario would send oil materially lower, potentially toward the BoC's $75 mid-2027 baseline faster than expected, and would represent a genuine change to the energy investment thesis. The probability of that scenario -- based on the precedent of the past three months and the specific unresolved issues in Doha today -- is not negligible, but it is not the base case.
Henry Wilkinson, chief intelligence officer at Dragonfly, noted last week that re-escalation remains possible and that Trump may use Xi Jinping as additional diplomatic pressure on Iran at their upcoming bilateral. The geopolitical story is genuinely bilateral in structure, but the number of actors with leverage -- Pakistan, Qatar, Saudi Arabia, China -- creates the complexity that has prevented resolution despite months of effort.