Diesel Inventories Hit 18-Year Low as Prices Rise

S. diesel market is entering a critical supply phase, with benchmark prices declining this week yet futures markets signaling upward pressure as distillate inventories plunge to their lowest levels in nearly two decades. S. distillate inventories—roughly 90% ultra-low sulfur diesel (ULSD)—have fallen below 103 million barrels for two consecutive weeks, marking the first time this has occurred since 2005.

S. ports while no new supply flows in behind them. For supply chain and logistics professionals, this development carries immediate and medium-term implications. Inventory levels are now approaching operational minimums required to keep the system functioning, according to Jeffrey Currie, former Goldman Sachs oil analyst.

If inventories continue their current trajectory toward tank minimums—potentially dropping from 102 million barrels to critically low levels—fuel availability could tighten substantially, driving both price spikes and potential allocation issues. Shippers and fleet operators should anticipate higher fuel surcharges, potential capacity constraints at distribution centers, and increased volatility in fuel hedging strategies. The market's recent price action—characterized by intra-day swings of 10 cents per gallon and major moves of 19+ cents followed by reversals—reflects underlying uncertainty about supply adequacy. This volatility is expected to persist as the market tests whether current inventory depletion rates are sustainable or if external supply sources can replenish stocks before operational minimums are breached.