IEA: Global Oil Supply Set to Rise ~2.4 mb/d in 2026 – Balanced Growth Across OPEC+ & Non-OPEC+

The International Energy Agency (IEA) released its latest Oil Market Report outlook in February 2026, projecting global oil supply to increase by approximately 2.4 million barrels per day (mb/d) over the course of the year.The growth is expected to be broadly balanced between OPEC+ and non-OPEC+ producers, a shift from recent years when non-OPEC+ (led by the United States, Canada, Brazil, and Guyana) carried the majority of incremental supply.

Key Highlights from the IEA Forecast

• Total world oil supply in 2026 is now seen rising to around 104.5–105 mb/d (from ~102–102.5 mb/d in 2025 baseline).
• Non-OPEC+ continues to lead absolute growth, driven by:
  • United States (Permian associated gas liquids and tight oil)
  • Canada (oil sands ramp-ups)
  • Brazil and Guyana (deepwater pre-salt projects)
  • Other contributors (Norway, Argentina Vaca Muerta)
• OPEC+ is expected to contribute meaningfully again in 2026 after maintaining significant voluntary cuts through much of 2025. The group is widely anticipated to begin unwinding some of those cuts in the second half of 2026, particularly as seasonal demand strengthens and inventories draw down.
• The IEA notes that market balances remain sensitive to geopolitical developments, with ongoing uncertainty around US-Iran talks, Russian export flows, and Libyan output disruptions.

What This Means for Pipeline & Midstream ProfessionalsBalanced supply growth across OPEC+ and non-OPEC+ reinforces long-term demand for:

• Onshore takeaway capacity in key basins (Permian, Bakken, Duvernay, Vaca Muerta)
• Offshore gathering & export lines (Gulf of Mexico deepwater tiebacks, Brazil pre-salt, Guyana FPSO developments)
• Integrity & maintenance planning as throughput volumes rise on existing infrastructure

Higher global supply also supports sustained LNG feed gas demand, which in turn bolsters subsea pipeline and compression projects feeding Gulf Coast terminals.

For engineers and integrity specialists: this outlook highlights the need for robust monitoring, pigging strategies, and HPHT/subsea risk assessments in high-growth export corridors.How do you see this balanced supply growth affecting your operations more volume on existing lines or new build opportunities? Drop a comment below.

Oko Immanuel
Subsea & Offshore Pipeline Engineer | Former Roughneck
OffshorePipelineInsight.com Daily Oil & Gas Insights for Pipeline & Subsea pros