Global oil markets are witnessing a widening divergence between OPEC producers and the United States, as geopolitical disruptions push the cartel’s output to its lowest level in nearly four decades while American shale operators increase drilling activity to capture rising demand and market share.
According to a Bloomberg survey, production from OPEC’s 11 current members fell by 1.22 million barrels per day in May to 16.33 million bpd, the lowest level since 1988. More than half the decline came from Iran, where output dropped by 710,000 bpd to a five-year low of 2.34 million bpd amid tighter US restrictions and conflict-related disruptions.
Production also fell sharply across Gulf exporters. Kuwait’s output declined by 310,000 bpd, while Saudi Arabia reduced production by 240,000 bpd as disruptions linked to the Strait of Hormuz affected regional energy flows despite efforts to maintain exports through alternative routes.
The decline comes as OPEC+ continues to announce modest increases in production targets, highlighting a widening gap between official quotas and actual output under current geopolitical constraints. While the reduction reflects operational disruptions rather than a loss of long-term capacity, significant volumes remain sidelined across the Gulf.
Meanwhile, the United States is moving in the opposite direction. Baker Hughes data released on 6 June showed the number of active US oil rigs increased to 431, marking the longest sustained rise in drilling activity since 2022. Higher crude prices and growing international demand are encouraging shale producers to expand output as refiners seek alternatives to disrupted Middle Eastern supplies.
The consequences are extending beyond the energy sector. Freight markets have tightened as higher fuel costs, shipping risks and congestion at some Asian ports push transport costs higher. According to Xeneta, spot rates for a 40-foot container from Asia to Northern Europe rose 27% week-on-week to $3,649, while rates to the US West Coast increased 20% to $3,933.
The immediate beneficiaries are US shale producers, crude exporters and shipping companies, all of which are capitalizing on higher prices and disrupted Middle Eastern supplies. The losers are energy-importing economies, manufacturers and consumers, who face rising transportation and input costs that risk feeding a new wave of inflation across global supply chains and complicating efforts by central banks to ease monetary policy.
Yet the longer-term implications may prove even more significant. The conflict, now extending beyond 100 days, is accelerating efforts by Gulf producers to reduce reliance on the Strait of Hormuz through alternative pipelines, export terminals and logistics corridors. Saudi Arabia has expanded use of its East-West Pipeline to the Red Sea, while the UAE continues to leverage export infrastructure outside the Gulf to preserve access to international markets.
If regional tensions persist and planned infrastructure projects materialize toward the end of 2027, the competitive landscape could shift again. Higher-cost US shale producers are currently benefiting from elevated prices and constrained Gulf exports, but the return of larger volumes of low-cost Middle Eastern crude through expanded export routes could intensify competition and place downward pressure on both oil and freight rates.
For now, however, the crisis is reshaping global trade as much as energy markets. Every disrupted barrel from the Gulf is creating opportunities for US exporters and shipping operators, while raising costs for consumers worldwide. The ultimate battle may not be over oil production itself, but over which producers can deliver energy to global markets most reliably and at the lowest cost in an increasingly uncertain geopolitical environment.
