OPEC’s May output has plunged to its lowest level since 2000, as the escalating confrontation with Iran rapidly reshapes the global energy landscape.
The 11-member Organization of the Petroleum Exporting Countries pumped just 16.13 million barrels per day (bpd) last month, a month-on-month decline of 1.06 million bpd, and a figure that analysts say should send shockwaves through energy markets, boardrooms, and government ministries alike.
Critically, the numbers exclude the United Arab Emirates, which formally exited OPEC as of May 1, adding yet another layer of institutional turbulence to an already fractured cartel.
To fully appreciate the scale of what these numbers represent, context is everything. At the height of the COVID-19 pandemic in 2020, when global air travel ground to a halt, factories shuttered across continents, and fuel demand fell off a cliff, OPEC output still did not sink this low.
That the cartel is now producing less oil in a period of ostensibly functioning global demand speaks volumes about the severity of the supply disruption now unfolding in the Persian Gulf.
“This isn’t a demand shock; it’s a supply shock of the highest order,” one veteran energy market analyst said. “The pandemic was an extraordinary event, but this is something different altogether. This is geopolitics physically severing the arteries of global oil supply.”
The Reuters survey drew its findings from a rigorous combination of flow data supplied by financial data group LSEG, independent tracking from shipping intelligence firm Kpler, and direct intelligence gathered from sources embedded at oil companies, OPEC itself, and specialist energy consultants, lending the figures considerable credibility and weight.
At the heart of the crisis sits Iran. The U.S. naval blockade, which officially came into effect on April 13, has had a swift and devastating impact on the Islamic Republic’s oil export capacity.
According to the survey, Iran recorded the single largest production and export drop among all OPEC members in May, with crude oil and condensate exports falling to their lowest level in at least six years.
The blockade, a dramatic escalation of Washington’s long-running maximum pressure campaign against Tehran, has effectively strangled Iranian oil flows to key buyers, particularly in Asia. But the consequences have rippled far beyond Iran’s own borders.
Iran’s retaliatory move, the effective closure of the Strait of Hormuz, the narrow but strategically vital waterway through which an estimated 20% of the world’s oil supply passes, has compounded the crisis exponentially.
By choking off this critical maritime chokepoint, Tehran has not only weaponized geography but has also inflicted collateral damage on its own Gulf neighbors, slashing export volumes from Saudi Arabia, Kuwait, and other producers dependent on the Hormuz passage for their own shipments.
Saudi Arabia, OPEC’s de facto leader and the world’s largest oil exporter, recorded a further production decline in May, an outcome that sources familiar with Riyadh’s export logistics describe as a direct consequence of the Hormuz disruption rather than any voluntary output decision.
Iraq, however, managed to buck the trend, though not through the mechanism one might expect. Baghdad was able to report an increase in output, but sources cited in the survey indicate this was driven largely by a rise in domestic consumption rather than a surge in export volumes. With regional logistics strained, Iraq appears to have redirected a greater share of its production inward.
Meanwhile, Venezuela and Nigeria, two OPEC members whose own infrastructure and political challenges have long constrained their output potential, managed to pump more oil in May, providing a modest counterweight to the broader collapse elsewhere in the bloc.
Perhaps the most striking footnote to this entire episode is what it reveals about the limits of multilateral production agreements in the face of hard geopolitical realities.
Eight members of the broader OPEC+ alliance, the expanded grouping that includes OPEC nations alongside key non-member allies such as Russia, had entered May with a formal agreement to raise production levels, part of a carefully negotiated plan to ease supply constraints and stabilize prices.
That agreement is now, for all practical purposes, a casualty of the Iran crisis. The combination of the U.S. blockade and the Hormuz closure made any meaningful production increase impossible to execute, leaving the deal on paper while the physical reality on the water told an entirely different story.
For Moscow, which had supported the production increase plan, the development represents an uncomfortable reminder that OPEC+ solidarity has its limits when one member’s sovereign crisis becomes everyone’s logistical nightmare.
Energy market watchers are now focused on two central questions: how long the Strait of Hormuz disruption will last, and whether Washington and Tehran are moving toward any form of diplomatic off-ramp.
In the near term, oil prices already elevated by months of geopolitical tension face significant upward pressure. If the Hormuz closure persists into June and beyond, the supply squeeze could deepen further, with implications stretching from petrol prices in Lagos and London to inflation calculations in Washington and Beijing.
For OPEC as an institution, the May figures represent more than a bad month; they represent an existential test of relevance and cohesion at a moment when the cartel’s ability to manage supply and stabilize markets is precisely what the world needs most.
Whether it can rise to that challenge, with one of its longest-standing members locked in armed confrontation with the world’s most powerful navy and a key transit route effectively closed, remains the most consequential energy question of the moment.
WHAT YOU SHOULD KNOW
OPEC’s oil output in May crashed to its lowest level in over two decades, a crisis not born of collapsing demand, as seen during COVID-19, but of deliberate geopolitical conflict.
The U.S. naval blockade on Iran and Tehran’s retaliatory closure of the Strait of Hormuz have physically severed a critical artery of global oil supply, dragging the cartel’s production down to 16.13 million barrels per day and rendering a pre-agreed OPEC+ production increase completely moot.
