What’s Hot: OPEC+ to drive oil surpluses higher

Key Takeaways

• OPEC+ production shift: The Organization of the Petroleum Exporting Countries plus allies (OPEC+) is rapidly unwinding supply cuts, adding barrels back faster than planned to regain market share, though actual output lags targets.
• Diverging forecasts: The International Energy Agency (IEA) expects a record surplus, OPEC predicts a deficit, while the US Energy Information Administration (EIA) forecasts a moderate surplus—our view aligns more closely with EIA.
• Market impact: Despite surplus risks, prices rose on fears of sanctions reducing Russian supply, but we see near-term downside

Last week, OPEC+ (Organization of the Petroleum Exporting Countries plus allied producers) announced another increase in oil production, adding to the existing surplus. Yet markets shrugged off the news and oil prices continued to climb. Investors appear more concerned about tightening sanctions on Russia and Iran than about OPEC+’s policy moves.

OPEC+ restraint in context

OPEC+ has operated with multiple layers of production restraint in recent years (see summary below). The third layer of restraint—2.2 mb/d—has now been removed. Originally planned to unwind gradually over 18 months, it was instead rolled back swiftly in just six months between April and September 2025.

The new announcement

Last week, the Group of Eight announced plans to add another 137 kb/d to the market in October 2025, beginning the unwind of the second restraint layer (1.65 mb/d). If maintained monthly, the full tranche would be removed within 12 months, leaving only the group-wide 2.0 mb/d cut in place.

The decision was swift—reached in just 11 minutes during a virtual meeting—signalling OPEC+’s clear intent to regain market share lost during years of restraint, which enabled the US to surge ahead as the world’s largest oil producer.

Headline versus reality

The actual supply boost may fall short of targets. Iraq, the UAE, Kuwait, and Kazakhstan already produce ~1.1 mb/d above their quotas, while others, including Russia, face capacity limits. According to the IEA (International Energy Agency), OPEC+ will have increased crude output by just 1.5 mb/d since 1Q25—well below the announced 2.5 mb/d target.

Surplus or deficit?

The outlook diverges:

• IEA: Expects a 3.3 mb/d surplus on average over the next year—360 kb/d more than its previous forecast—at levels not seen since the COVID crisis.
• OPEC: Projects a supply deficit, citing robust demand growth and slowing non-OPEC+ supply.

Our view

We see flaws in both forecasts. The IEA’s supply growth assumptions are likely too aggressive, given OPEC+’s delivery shortfalls. OPEC’s demand outlook is equally unrealistic, with seasonal summer demand winding down and China well-stocked with inventory.

We expect a surplus, though smaller than the IEA’s forecast. A deficit seems unlikely absent a supply shock. The US Energy Information Administration’s (EIA’s) forecast of a 2.0 mb/d surplus from Q3 2025 through Q1 2026 is more reasonable. US output is expected to peak at a record 13.4 mb/d this year, before moderating slightly to 13.3 mb/d in 2026.

World production and consumption of oil and liquid fuels

World balance of oil and liquid fuels

Source: US Energy Information Administration, Short-Term Energy Outlook, September 2025. Forecasts are not an indicator of future performance and any investments are subject to risks and uncertainties.

Why have prices risen since the last OPEC+ announcement?

Despite rising surplus forecasts, prices have edged higher. Markets appear focused on the risk of secondary sanctions targeting Russian oil.

Since the Russia-Ukraine war began, India and China sharply increased Russian imports, taking advantage of discounts after G7 nations imposed a price cap ($60/barrel in 2022). Neither India nor China signed up to the cap, enabling Russia to redirect flows.

Now, the US is pressing G7 allies to impose tariffs—potentially as high as 100%—on Indian and Chinese purchases of Russian oil. President Trump, frustrated by a stalled Ukraine war and political pressure, is seeking tougher measures after earlier signalling a softer stance toward Russia.

If enforced, such tariffs could curb Russian exports, tightening global supply. However, in today’s inflation-sensitive environment, the appetite for strict sanctions is uncertain. Notably, Trump himself had previously urged OPEC+ to boost output to tame inflationary pressures. European G7 members, meanwhile, remain sceptical about tariffs as a policy tool.

Downside price pressure ahead

While markets focus on sanctions risk, the near-term effect of OPEC+’s production increases is underappreciated. Rising supply points to downside pressure on oil prices in the months ahead.

Investment implications

We believe tactical shorts on oil could benefit investors from a potential correction. WisdomTree offers a range of short and leveraged oil products on Brent and WTI, with leverage up to 3x for capital efficiency.

Key Considerations:

• These products are path dependent, resetting daily.
• A -3x product will deliver three times the daily inverse move (less fees), but performance over longer periods depends on daily price paths.
• Short and leveraged products are designed for short-term tactical use and should be entered with conviction.

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What’s Hot: OPEC+ to drive oil surpluses higher