Supply Reality vs. Market Sentiment: Oil Prices Plummet Despite Tightening Deficit

Oil prices have retreated sharply in recent months due to diplomatic headlines and the removal of a geopolitical risk premium. However, the physical data underpinning supply conditions has continued to deteriorate, with forecast revisions from major institutions pointing to a 2026 supply picture that is meaningfully tighter than current prices suggest.

The scale of the shift in 2026 supply forecasts is significant, with a deficit of approximately 1.5 million barrels per day now expected, up from an initial estimate of 750,000 barrels per day. This represents a swing of roughly 3.1 million barrels per day in the fundamental supply-demand balance within a matter of months.

Despite the bearish outlook, oil prices have declined by around 8% since the United States suspended its air-strike campaign against Iran, with Brent falling from $87.86 per barrel to $85.95 intraday and WTI moving from $82.24 to approximately $80.81.

The removal of the risk premium has masked the underlying physical constraints that are driving the supply deficit. Infrastructure takes time to repair, rerouted shipping lanes take weeks to normalise, and insurance markets for war-risk coverage do not reprice overnight.