Will petrol and diesel prices go up because of the Iran war?

Recent escalations in Middle Eastern geopolitical tensions have sent immediate ripples through international energy markets, prompting widespread speculation regarding the trajectory of consumer petrol and diesel prices and their potential to trigger broader economic consequences across various sectors. The confluence of military actions and strategic warnings emanating from the region has already manifested in significant upward shifts in global oil and gas benchmarks, igniting apprehension among consumers and policymakers alike regarding the potential for renewed inflationary pressures and economic instability.

The immediate catalyst for this market unease stems from heightened military engagements in the Middle East, specifically involving US and Israeli forces and Iran. This series of events has propelled crude oil prices upwards by approximately 10% in a swift reaction, with natural gas markets also experiencing considerable surges. Central to this rapid repricing of energy commodities is the explicit warning issued by Iran concerning the passage of maritime vessels through the Strait of Hormuz. This narrow waterway, strategically positioned at the mouth of the Persian Gulf, serves as an indispensable choke point for global energy transit, facilitating the movement of an estimated 20% of the world’s total crude oil and liquefied natural gas (LNG) supplies. Any perceived or actual threat to the unimpeded flow of traffic through this vital artery immediately introduces a substantial risk premium into energy prices, reflecting fears of supply disruption, even if those fears are largely speculative in the initial stages. The sustained imposition of such restrictions or an intensification of regional hostilities could embed these elevated energy costs, leading to a cascading series of economic impacts far beyond the immediate point of conflict. However, the overarching degree of uncertainty surrounding the conflict’s magnitude, duration, and ultimate resolution necessitates a cautious analytical approach when predicting the long-term effects on oil, gas, and wider energy expenditures.

The direct relationship between crude oil and refined petroleum products means that fluctuations in the former invariably translate, with a time lag, into changes at the retail fuel pumps. Crude oil constitutes a primary input in the production of both petrol (gasoline) and diesel, making its price a critical determinant of consumer fuel costs. Industry analysts, including prominent motoring organizations, are now projecting a potential reversal of recent downward trends in fuel prices. Over the preceding weeks, UK forecourts had observed a gradual decline in average fuel costs, offering some respite to motorists. However, the current geopolitical premium on crude oil suggests that retail fuel prices could escalate to levels last seen at the commencement of the year within the coming weeks. The ultimate trajectory and magnitude of these increases remain intrinsically linked to the scale and persistence of the Middle Eastern conflict. Current national averages for petrol stand at approximately 132.6 pence per litre, with diesel averaging 142.3 pence per litre, according to recent data. Expert projections indicate that if international crude oil benchmarks stabilize around the $80 per barrel mark, the average price for petrol could rise to 136 pence per litre. Should the price ascend to $90 per barrel, motorists might anticipate paying over 140 pence per litre, while a surge to $100 per barrel could push prices closer to 150 pence per litre. Nevertheless, these are preliminary assessments, and the volatile nature of geopolitical events dictates that definitive long-term forecasts remain elusive at this nascent stage.

Beyond the immediate impact on vehicle fuel, a sustained period of elevated energy prices carries profound implications for the broader economy, particularly regarding consumer goods and the cost of living. Increased petrol and diesel costs directly translate into higher operational expenditures for businesses reliant on transportation and logistics to move goods across the country. This includes a vast array of sectors, from manufacturing and retail to agriculture and distribution. Faced with rising input costs, businesses frequently face the difficult decision of absorbing these expenses, thereby reducing profit margins, or passing them on to consumers through higher retail prices. This phenomenon contributes directly to inflationary pressures, eroding household purchasing power and potentially dampening overall economic activity.

Furthermore, the agricultural sector faces a more direct and nuanced vulnerability. Crude oil derivatives are essential components in the production of various fertilizers, which are critical for maintaining crop yields and food security. A sustained increase in crude oil prices therefore implies higher fertilizer production costs, which farmers, in turn, may be compelled to incorporate into the prices of their produce. This direct linkage from energy markets to agricultural inputs could lead to an upward revision in food prices, exacerbating the cost of living for consumers. However, the expert consensus suggests that this particular channel of impact would likely require a more protracted period of energy market disruption to manifest significantly in retail food prices, as agricultural supply chains often have longer lead times and some capacity for cost absorption in the short term.

For domestic energy consumers, particularly in jurisdictions like the UK, the immediate repercussions on household gas and electricity bills are somewhat mitigated by existing regulatory frameworks. Millions of UK households are currently protected by a national energy price cap, which fixes the maximum unit prices that suppliers can charge for gas and electricity over specific periods. The current price cap, which dictates unit rates from April, has already been determined, shielding consumers from immediate wholesale market volatility. Consequently, any significant upward shifts in global natural gas prices stemming from the Middle Eastern conflict will not be reflected in consumer bills until the subsequent review period. This means that potential increases in domestic variable energy tariffs are unlikely to be observed before the three-month period commencing in July, providing a temporary buffer for households against the current geopolitical turbulence in energy markets. However, a sustained period of elevated wholesale prices could exert considerable upward pressure on future price cap determinations, eventually translating into higher household expenditures.

The broader macroeconomic implications of prolonged energy price inflation are particularly pertinent for central banks and their monetary policy strategies. The UK, for instance, has recently witnessed a welcome moderation in its inflation rate, which had soared following Russia’s full-scale invasion of Ukraine. This easing of inflationary pressures had provided the Bank of England with scope to adjust its monetary policy stance, leading to a series of interest rate cuts. Since August 2024, the Bank of England has reduced its base interest rate six times, bringing it down to 3.75%, with market expectations pointing towards further cuts in the near future, potentially as early as this month. However, a sustained resurgence in crude oil prices introduces a significant complicating factor to this trajectory.

Economists emphasize that the duration of elevated crude prices is a critical variable. Should these prices remain persistently high, they are likely to exert a "cascading" effect throughout the economy, feeding into a broader array of commodity prices, including agricultural products, industrial inputs, and transportation costs. This widespread diffusion of higher costs would inevitably "bleed into" headline inflation metrics, potentially reversing the progress made in bringing inflation back towards target levels. The Bank of England’s Monetary Policy Committee (MPC) is scheduled to convene in a few weeks; however, this timeframe is generally insufficient to fully assess the long-term impact of recent oil price movements on the broader inflationary landscape. Given the inherent uncertainty and the potential for renewed inflationary pressures, the prudent course of action for the Bank of England, according to many economic analysts, would be to maintain the current interest rate, observing market developments and economic indicators closely before committing to further adjustments. This approach prioritizes stability and long-term inflation control over immediate stimulus measures, acknowledging the fragility of the current economic recovery amidst geopolitical uncertainties.

In conclusion, the escalating geopolitical tensions in the Middle East have injected a significant degree of volatility and uncertainty into global energy markets, with immediate and potential long-term ramifications for consumers, businesses, and macroeconomic stability. While initial price surges at the pump are a direct consequence of crude oil’s upward trajectory, the broader economic landscape faces potential inflationary headwinds through increased transport costs, agricultural input prices, and a possible re-evaluation of central bank monetary policy. The lag effect of energy price caps offers some temporary insulation for domestic energy bills, but sustained high prices will eventually filter through. The ultimate economic impact remains highly contingent on the magnitude, duration, and geographical spread of the conflict, underscoring the delicate balance between geopolitical stability and global economic resilience in an interconnected world. Navigating this complex environment will require astute policymaking, agile business strategies, and continued vigilance from economic observers worldwide.