An Overview of Oil Demand and Supply by OPEC MOMR
June 2025
The June edition of the OPEC Monthly Oil Market Report (MOMR) presents the following projections for global oil demand and supply:
Assessment of Global Oil Demand
The forecast for global oil demand growth in 2025 remains unchanged from the previous month’s assessment, at 1.3 million barrels per day (mb/d) year-on-year (y-o-y). Minor revisions were made, primarily reflecting updated actual data for the first quarter of 2025.
In the OECD region, oil demand is projected to increase by approximately 0.2 mb/d in 2025, while demand in non-OECD countries is expected to rise by over 1.1 mb/d.
Looking ahead to 2026, global oil demand is also forecast to grow by 1.3 mb/d y-o-y, consistent with the previous month’s projections. Within this total, OECD demand is anticipated to grow by around 0.1 mb/d y-o-y, and non-OECD demand by approximately 1.2 mb/d y-o-y.
Assessment of Global Oil Supply
Liquids supply from non-Declaration of Cooperation (non-DoC) countries—those not participating in the Declaration of Cooperation—is projected to grow by approximately 0.8 million barrels per day (mb/d) year-on-year (y-o-y) in 2025, unchanged from the previous month’s assessment. The primary contributors to this growth are expected to be the United States, Brazil, Canada, and Argentina.
For 2026, the non-DoC liquids supply growth forecast has been slightly revised downward to 0.7 mb/d, with the same countries—namely the US, Brazil, Canada, and Argentina—anticipated to remain the main drivers of growth.
Meanwhile, the supply of natural gas liquids (NGLs) and non-conventional liquids from countries participating in the Declaration of Cooperation (DoC) is projected to increase by 0.1 mb/d y-o-y in 2025, reaching an average of 8.4 mb/d. A similar increase of approximately 0.1 mb/d y-o-y is expected in 2026, bringing the average to 8.5 mb/d.
According to available secondary sources, crude oil production from DoC-participating countries rose by 180 thousand barrels per day (tb/d) month-on-month (m-o-m) in May, averaging approximately 41.23 mb/d.
Source: OPEC MOMR – June 16, 2025

