The Strait of Hormuz ceasefire agreed on April 8 has never fully held. What changed on June 1 is that Iran stated publicly it was suspending negotiations entirely and threatening a complete closure of the strait, citing ongoing Israeli operations in southern Lebanon as a ceasefire violation. President Trump, in a phone call with ABC News the same day, insisted talks remain active and a deal is reachable within a week. Both statements cannot be simultaneously true in the way their speakers intend them. One of them is managing perceptions.
WTI crude's behaviour this morning, trading at $95.68 and rising for a third consecutive session, suggests the market currently sides with Trump's framing over Tehran's. That is a judgment call about the credibility of Iranian state media and the reliability of Trump's read on deal progress. It may be correct. It is not, however, a conservative assumption for a portfolio risk framework. The gap between $95 WTI and the Rystad Energy full-escalation model at $180 is the unpriced risk sitting in every energy-weighted Canadian portfolio today.
The Lebanon Problem Iran Did Not Create but Now Controls
The ceasefire architecture that emerged from Pakistan's mediation in April was premised on a geographic scope that was never fully agreed between the parties. Iran's Foreign Minister Abbas Araghchi stated explicitly on June 1 that Lebanon is included in the ceasefire terms, and that any violation by Israel in Lebanon "shall be considered a violation of it across all fronts." Israel's Defence Minister denied any ceasefire existed in Lebanon and the IDF continued operations in southern Lebanon through the week of June 1, killing hundreds according to Lebanese health officials cited by Reuters.
The practical consequence is that the path to a permanent Hormuz reopening now runs through a Lebanese conflict settlement that neither Washington nor Tehran fully controls. Israel is not a party to the Pakistan-mediated talks. Qatar, which worked through the weekend of May 31 to June 1 on de-escalation in southern Lebanon, has influence but not authority. The ceasefire's structural weakness is not a negotiating posture: it is a genuine feature of the agreement's design. The parties who needed to agree to it were not the only parties whose actions it needed to constrain.
The chart below places WTI's 2026 price path against the key geopolitical events, with the current level and the scenario range overlaid to show the distance between current market pricing and the tail risk the Rystad Energy and IEA analyses have quantified.
WTI's 2026 price path from a pre-conflict $68 through the March surge above $100, the April 8 ceasefire-driven pullback, and the current $95.68 level. The Goldman Sachs Q4 base case at $90 and the Rystad Energy full-closure tail risk at $180 frame the scenario range the market is currently threading between.
The Asymmetric Canadian Portfolio Implication
Canada's position in this scenario is structurally unusual among G7 economies. As a large net energy exporter, sustained high oil prices increase Canadian national income through the terms-of-trade channel: the BoC's April statement explicitly noted that "higher oil prices increase national income even as consumers are squeezed by higher gasoline prices." This is why the TSX has outperformed most developed market indices year-to-date despite GDP contracting in two consecutive quarters. The energy sector's contribution to corporate income is carrying the index.
The asymmetry, however, cuts in both directions. The scenario in which talks collapse completely and Iran fully closes Hormuz does not simply mean higher energy sector returns for Canadian portfolios. It means WTI potentially at $130 to $180, Canadian headline inflation through 4%, a Bank of Canada forced to choose between hiking into a recession or tolerating above-band inflation, and a global demand destruction event that would eventually reduce oil consumption enough to cap the upside. Rystad Energy's $180 model assumes that demand destruction mechanisms are insufficient in the short term to prevent that level, because the supply shock is too sudden for demand adjustment to track it in real time.
The base case, which Goldman Sachs places at $90 Brent by Q4 2026, requires a negotiated Hormuz reopening. That base case, as of this morning, is contested by the party whose cooperation it requires. The tail risk is not a remote probability: scenario analysts at Discovery Alert placed full re-escalation at approximately 20% probability as of early June, with a partial-bypass scenario at 35%. Together, those scenarios represent more than half the probability distribution lying outside the base case. That is not a tail. That is a material portfolio risk that merits explicit position sizing.