Asda warns of ‘temporary shortages’ at some petrol pumps amid Iran war

Average UK petrol rose above 150p/l to 150.11p and diesel reached 177.68p, up ~13% and ~25% respectively from pre-conflict averages (petrol 132.83p, diesel 142.38p). Supply squeezes from the Iran conflict and closure risks at the Strait of Hormuz have pushed Brent to nearly $112/bbl (+3.5% on Friday), causing Asda to report temporary outages at a small number of forecourts amid elevated demand. Expect sustained higher pump prices to pressure retailer fuel margins and consumer spending in the near term, with government monitoring and threats of intervention if firms are seen to profiteer.

Analysis

Retail forecourts are now operating in an environment where short, sharp spikes in demand interact with low on-site storage and just-in-time deliveries, which amplifies localized stockouts. Supermarket groups with larger logistics footprints can smooth outages by re-routing tanker loads and prioritizing high-margin sites, creating a temporary competitive moat against independents and small franchisees who face cash-flow and working-capital strain.

A sustained premium on middle distillates will transmit through the logistics chain within 4–12 weeks: haulage firms see margin pressure first, then grocery and bulk distributors will face higher input costs that either compress retailer margins or get passed to consumers. Refiners with diesel-heavy production slates and storage owners stand to capture the bulk of that spread, while businesses sensitive to transport costs (discounters, fast-moving consumer goods with tight margins) are most exposed.

Policy and market catalysts are asymmetric. Political moves (temporary regulation, tax adjustments, strategic reserve releases) can snap the price-risk lower inside days, whereas shipping insurance, freight-rate repricing and longer refinery downtime produce a months-long elevation of risk premia. Monitor prompt crack spreads, insurance/freight indices and forecourt inventory signals as higher-frequency indicators of whether this is a transitory liquidity blip or a persistent supply reallocation.

Key Decisions for Investors

• Long regional refiners: buy 3-month call spreads on Valero (VLO) or Marathon Petroleum (MPC) to capture widening gasoline/diesel crack spreads; target a 2:1 reward:risk if the 1-month crack spread exceeds its 30-day moving average by >15%. Timeframe: 1–3 months. Risk: refinery turnarounds or quick policy interventions that compress margins.
• Long storage/logistics owners: initiate a 3–6 month position in Vopak (VPK.AS) or listed tank-storage operators via outright equity or 9–12 month calls if contango in the forward curve steepens; expected upside from higher utilisation and trading opportunities. Risk: sudden flattening of the forward curve or operational outages.
• Short airlines / travel discretionary: establish a 1–3 month short or buy protective puts on IAG (IAG.L) or U.S. majors (AAL) to express demand sensitivity to fuel cost shocks; hedge with a small allocation to airline fuel hedges if available. Reward if sustained fuel-related margin pressure reduces bookings; risk if carriers have effective fuel hedges or demand remains resilient.
• Tactical macro: buy near-term Brent/RBOB calendar spread (long prompt product vs short later-dated crude) for 1–2 months to capture spot tightness; unwind quickly on signs of strategic releases or diplomatic de-escalation. Keep position size small and use stop-loss tied to prompt spread narrowing by >20%.