The Strait of Hormuz Crisis Has Redrawn the Global Oil Map—and OPEC+ Is Meeting in the Rubble

Those headline figures understate the true supply hole. Russian Deputy Prime Minister Alexander Novak warned on June 4 of a larger hidden shortfall—roughly 12 million b/d not reaching the market—and cautioned that an acute physical shortage could develop within months if conflicts continue and Gulf states delay investment . The International Energy Agency estimated in its May Oil Market Report that cumulative supply losses had already surpassed 1 billion barrels by mid‑May .

Brent crude’s trajectory captured the panic: prices surged to roughly $126/barrel in March, the largest monthly increase ever recorded, before easing to around $95 in early June on fragile hopes of U.S.–Iran negotiations . At those levels, oil is no longer reflecting only physical tightness; it is pricing the probability of a diplomatic breakthrough that has yet to materialize.

Demand Forecasts: A War‑Driven Divergence

The shock has forced forecasters to rewrite their demand outlooks for 2026 and 2027. OPEC’s May Monthly Oil Market Report cut its 2026 global demand growth estimate to approximately 1.2 million b/d, down from 1.4 million b/d, explicitly citing the Iran war disruption . Yet the cartel raised its 2027 forecast to ~1.5 million b/d—an upward revision of about 0.2 million b/d—betting on a sharp non‑OECD rebound once Strait flows resume .

The U.S. Energy Information Administration takes a starker view. Its June Short‑Term Energy Outlook slashes 2026 demand growth to just 0.2 million b/d, reflecting demand destruction concentrated in Asia, the region most dependent on Middle Eastern crude . The EIA projects 2027 growth of 1.5 million b/d—matching OPEC’s recovery narrative—but warns that even after the Strait reopens, most pre‑conflict production and trade patterns will not resume until late 2026 or early 2027 .

Specific IEA demand forecasts through 2027 were not captured in available reporting, though the agency’s May Oil Market Report has been cited indirectly for its production shut‑in estimates exceeding 14 million b/d .

The Russia–Saudi Axis: Coordination Under Pressure

The bilateral meeting between Saudi Energy Minister Prince Abdulaziz bin Salman and Russian Deputy Prime Minister Novak on the sidelines of the St. Petersburg International Economic Forum on June 4 served as an informal pre‑meeting of the alliance’s two heavyweights . Prince Abdulaziz’s public call for “stabilization in the energy sector” was calibrated for a moment when both the Strait crisis and the Ukraine war are cutting output from major producers . With the two countries now accounting for over 20% of world oil production, their alignment is the gravitational center of whatever OPEC+ decides .

Novak’s 12 million b/d hidden‑shortfall warning, delivered at the same forum, signals Moscow’s view that the market is far tighter than official production quotas suggest—and that premature supply increases could be disastrous if the Strait remains closed .

What Is at Stake on June 7

The 41st OPEC and Non‑OPEC Ministerial Meeting is the first full ministerial session since the UAE’s exit on May 1. That departure is not symbolic; it has real physical consequences. The EIA now expects OPEC’s spare capacity to average 2.5 million b/d in 2027, down from a previous projection of 3.8 million b/d, precisely because the UAE was a major holder of idle production capability . The alliance must now reallocate quotas among a smaller group of members while facing the largest supply disruption in history.

Delegates briefed on the agenda expect ministers to approve another 188,000 b/d production increase for July, continuing the gradual unwind of voluntary cuts that date to April 2023 . The real question is whether they will maintain, accelerate, or pause that unwind. With Brent trading around $95–$101, well below the $90–$100 floor most Gulf budgets target, fiscal pressures push in opposing directions: accelerate and risk a price crash if diplomacy succeeds, or maintain and risk losing market share to non‑OPEC producers .

There is a third risk the meeting cannot escape: time. JPMorgan warned in mid‑May that OECD commercial inventories could “approach operational stress levels” by early June and, if the Strait remains effectively closed, reach critically low levels by the end of the month . That calculus turns the June 7 meeting from a policy session into a crisis‑management exercise. The alliance must decide how to allocate a shrinking pool of real barrels in a market that is running out of stored supply.