Brent is at $81/barrel. Three major institutions have published 2026 forecasts. They disagree significantly -- because the Iran situation genuinely could go several ways. Here's what each scenario means for your energy bills.
Base case: $78-88/barrel for remainder of 2026. Bear case (crisis resolves): $65-75. Bull case (escalation): $110-140. The spread is unusually wide -- uncertainty is the forecast.
Goldman Sachs Commodities Research (March 2026): Base case $80-86 for H1 2026, dipping to $75-80 in H2 if the Iran situation stabilises. Bull case $120-130 if Hormuz is disrupted. Their view hinges on whether Saudi spare capacity (estimated at 2.5-3 million barrels/day) is sufficient to offset any Iranian supply loss.
IEA Oil Market Report (March 2026): More bearish than Goldman. Base case $75-82 for 2026, noting that non-OPEC supply growth (US, Brazil, Guyana, Canada) is running ahead of demand growth. The IEA flags that global oil demand growth is slowing as EV penetration accelerates, particularly in China. Their base case assumes no major Hormuz disruption.
EIA Short-Term Energy Outlook (March 2026): $79 average for 2026, with a wide confidence interval of $60-$115. The EIA explicitly flags geopolitical risk as the primary upside risk and a potential Chinese economic slowdown as the primary downside risk.
Iran/Hormuz outcome is the dominant variable. Every other factor -- OPEC decisions, US shale output, Chinese demand -- is secondary to whether the Hormuz risk materialises. If it does, the forecasts above become irrelevant; if it fades, the bearish IEA view looks more plausible.
Chinese demand is the second biggest variable. China accounts for approximately 16% of global oil consumption and has been the largest source of demand growth for a decade. Chinese economic growth has been disappointing relative to post-COVID expectations, and EV adoption in China is accelerating faster than most forecasters predicted. A Chinese demand surprise (either direction) moves the global balance significantly.
US shale production remains the swing supplier that OPEC cannot fully control. At $80+ oil, US tight oil production is highly profitable and drillers are adding rigs. US production is forecast to reach 13.6 million barrels/day by end 2026 -- a record. This limits OPEC's pricing power on the upside.
OPEC+ discipline has been imperfect. Iraq, Kazakhstan and the UAE have consistently produced above their quotas, undermining the group's stated cuts. If the Iran situation pushes prices higher, the incentive to cheat increases further, which partially self-limits any spike.
| Oil price scenario | Likelihood (analyst consensus) | Extra annual cost (avg Western household) |
|---|---|---|
| $65-75 (bear case -- crisis fades) | 20% | Savings vs 2024 baseline possible |
| $75-90 (base case -- status quo) | 55% | +$300-600/yr |
| $100-120 (partial disruption) | 18% | +$800-1,200/yr |
| $130-160 (Hormuz closure) | 7% | +$2,000-3,500/yr |
Goldman Sachs Global Investment Research Commodity Watch March 2026. IEA Oil Market Report March 2026. EIA Short-Term Energy Outlook March 2026. Analyst consensus probabilities are indicative estimates based on options market pricing, not official forecasts. Full disclaimer.
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