UK Chancellor Reeves Disputes Claims of Imminent Fuel Supply Shortage

In early April 2026, Chancellor Rachel Reeves offered a blunt assessment of the UK's fuel situation: "We don't have a problem with supply. There's plenty of supply. The impact at the moment is a price impact" [1]. She urged the public not to worry about rationing and to "carry on acting as normal" [1].

Within days, Shell CEO Wael Sawan warned that Europe — and Britain in particular — would begin to feel the full physical impact of the Strait of Hormuz closure as the last pre-war tanker shipments arrived and existing reserves depleted [2]. Energy analyst Ashley Kelty of Panmure Liberum projected diesel supply issues by late April [3]. The International Energy Agency cautioned that Europe could run out of jet fuel within six weeks [4].

Both statements cannot be entirely right. The truth sits somewhere in the gap between political reassurance and industry alarm — and the data suggests that gap is narrower than Reeves implies but wider than the most dire warnings assume.

Who Sounded the Alarm — and Are They Credible?

The shortage warnings did not originate from fringe commentators. Sawan made his remarks at CERAWeek in Houston, describing a geographic ripple effect: "South Asia was first to get that brunt. That's moved to Southeast Asia, Northeast Asia and then more so into Europe as we get into April" [2]. Nick Butler, a former energy policy adviser to Gordon Brown, said fuel shortages were "no longer a distant risk" and predicted a physical shortage combined with sharp price rises by late April to early May [3]. Professor Lucy Easthope, an emergency planning expert who advises central and local government, stated that "some damage has already been done from three weeks of conflict" [3].

Shell, as one of the world's largest fuel traders, has obvious commercial interest in supply dynamics. When the CEO of a company that profits from higher prices warns of scarcity, that is worth noting. But Sawan's analysis was consistent with assessments from the IEA [4], Oxford Energy [5], and Argus Media, which identified the UK as the European country "most at risk" from a jet and diesel squeeze [6]. The convergence of multiple independent sources lends the warnings significant weight.

The immediate trigger is the closure of the Strait of Hormuz following the outbreak of the Iran war in March 2026. Approximately one-fifth of the world's oil and liquefied natural gas normally transits the strait [7]. Its closure has already caused Slovenia to become the first EU country to ration fuel [8].

UK Fuel Reserves: The Numbers

The most recent published data from the Department for Energy Security and Net Zero, covering January 2026, shows UK fuel reserves averaging 24.8 days of forward cover across all fuel types [9]. The breakdown by fuel grade reveals significant variation.

Source: DESNZ Energy Trends

Data as of Apr 2, 2026CSV

Petrol stocks stood at 28.8 days, diesel at 23.3 days, jet fuel at 33.5 days, and heating oil at just 13.7 days [9]. All of these figures sit well below the IEA's 90-day net import benchmark — the standard to which the UK is treaty-bound as an IEA member state [10].

A critical caveat: DESNZ stock data carries roughly a two-month reporting lag [9]. The January figures predate both the Strait of Hormuz closure and the surge in consumer fuel purchasing that Fleet News reported in March [11]. Actual current reserves are almost certainly lower.

The UK's approach to meeting its IEA obligation differs from that of many peers. Unlike countries such as the United States, Germany, or Japan, the UK does not maintain a government-owned strategic petroleum reserve. Instead, it fulfils its stockholding obligations by imposing requirements on commercial entities — oil companies and importers [10]. This means reserves are dispersed across private sector storage rather than concentrated in dedicated strategic facilities, making them harder to mobilise in a coordinated emergency response.

During the 2021 fuel crisis — triggered by HGV driver shortages rather than a supply deficit — petrol station stocks collapsed within days of panic buying, even though aggregate national reserves were adequate [12]. The structural vulnerability is not just how many days of supply exist on paper, but how quickly they can reach forecourts.

The Refining Capacity Problem

The Chancellor's reassurance must be read against decades of declining domestic refining capacity. The UK now operates just four refineries, down from 17 in 1973 [13].

Source: Parliamentary Research Briefing

Data as of Mar 1, 2026CSV

The April 2025 closure of Grangemouth — Scotland's only refinery — removed approximately 150,000 barrels per day from UK capacity, roughly 14% of the national total [14]. Grangemouth was the UK's only refinery with a hydrocracker, a specialised unit that maximises production of middle distillates like diesel and jet fuel. Its loss meant UK refining output fell 7% in Q1 2025, with jet fuel production declining 15%, petrol 13%, and diesel 7.6% [14].

Britain is now a net importer of diesel and kerosene while remaining a net exporter of petrol [6]. Some 58% of diesel imports come from the US and the Netherlands [6], and approximately 60% of kerosene imports come from Saudi Arabia, the UAE, and Kuwait — with 38% from Kuwait alone [6]. That last figure is directly relevant: Kuwait sits on the Persian Gulf, and its exports transit the Strait of Hormuz.

The UK's dependence on the Netherlands and Belgium as refining and trans-shipment hubs for diesel and jet fuel creates a further vulnerability. If Continental European countries prioritise domestic supply — as several have signalled they may — the UK's import flows could tighten even without a direct Middle Eastern supply cut [5].

Supply Chain Stress Points

The shortage narrative rests on several distinct supply chain nodes, each with different levels of stress.

Refineries: With only four remaining, any unplanned outage at Fawley, Stanlow, Pembroke, or Humber has outsized impact. ExxonMobil is investing in expanding Fawley's low-sulphur diesel capacity by 40%, but completion was scheduled for 2025 and the current status is unclear [14].

Tanker drivers: The HGV driver shortage has improved significantly since its 2021 peak but remains a structural issue.

Source: Road Haulage Association / Logistics UK

Data as of Mar 1, 2026CSV

The Road Haulage Association estimates the UK needs to train 60,000 new HGV drivers annually for the next five years to meet demand and replace retirees [15]. In Q4 2024, 24% of HGV businesses still reported driver vacancies [16]. The shortage is concentrated in the broader haulage sector rather than specifically in fuel tanker operations, but tanker driving requires additional ADR (dangerous goods) certification, creating a narrower labour pool.

Forecourt margins and closures: Asda reported "temporary" fuel shortages at some forecourts in late March, with petrol breaching 150p per litre for the first time in nearly two years [17]. Diesel had risen 35p per litre since late February [2]. These are price signals, but localised pump shortages suggest distribution bottlenecks are beginning to appear.

Wholesale price spreads: European kerosene prices have doubled since the Strait of Hormuz closure [6]. The widening spread between wholesale and retail prices has prompted accusations of profiteering, which Asda's chairman has rejected [17]. The Competition and Markets Authority is investigating fuel retailers [18].

The Politics of Shortage Warnings

Reeves has reason to push back against shortage narratives. The 2021 crisis demonstrated that public statements about fuel supply can become self-fulfilling prophecies. When BP disclosed in September 2021 that it would "temporarily" close a small number of petrol stations due to driver shortages, fuel sales jumped 80% within 24 hours [12]. What began as a minor logistical problem became a national crisis driven by panic buying.

The Treasury also has fiscal exposure. No government has dared overturn the fuel duty freeze — introduced as a "temporary" measure 15 years ago — which has cost tens of billions in foregone revenue [19]. Acknowledging supply vulnerability while presiding over rising pump prices would intensify pressure to cut fuel duty, blowing a further hole in the fiscal position.

Ministers are also haunted by September 2000, when farmers and hauliers blockaded refineries and fuel depots, bringing the country close to crisis within days [19]. The political calculus favours projecting calm.

On the other side, fuel retailers and industry groups have their own incentives. Logistics UK used the crisis to urge the Chancellor to cancel the planned fuel duty increase [20]. Oil majors benefit from scarcity expectations through higher futures prices. Commodity traders profit from volatility. None of this means their warnings are wrong — but the financial incentives on all sides of this debate are worth acknowledging.

The government has launched a crackdown on "rip-offs" on road fuel and heating oil, warning it "will not tolerate" wartime profiteering [18]. This positions the Treasury as defending consumers while simultaneously denying the supply problem that would make profiteering easier.

The Steelman Case for Concern

Even if a national petrol crisis is unlikely in the near term, several specific vulnerabilities are genuinely credible.

Jet fuel and kerosene: The IEA's warning that Europe could exhaust jet fuel supplies within six weeks is the most alarming single data point [4]. Britain imports 65% of its jet fuel demand, and kerosene stockpiles cover just one month's supply [6]. Airlines are already cutting capacity and raising fares. While ministers insist that supply from the Netherlands and Antwerp remains uninterrupted, a sustained Strait of Hormuz closure would eventually squeeze European refineries that depend on Middle Eastern crude for kerosene production [4][6].

Heating oil: At 13.7 days of forward cover, heating oil has the thinnest reserves of any fuel grade [9]. Approximately 1.5 million UK homes — concentrated in rural Scotland, Northern Ireland, and parts of Wales — depend on heating oil. A supply tightening in autumn would hit the most geographically dispersed and logistically difficult-to-serve communities.

Diesel for agriculture and construction: These sectors depend on diesel with limited ability to switch fuels. Spring planting and construction activity create seasonal demand peaks. Red diesel (rebated fuel for agricultural use) was largely phased out in 2022, so agricultural users now compete directly with road users at the same pump price.

Regional disparities: Scotland lost its only refinery with Grangemouth's closure. Fuel now must travel further to reach Scottish consumers, lengthening supply chains and increasing vulnerability to transport disruptions [14].

AdBlue (diesel exhaust fluid): Though not a fuel, AdBlue is essential for all modern diesel vehicles and is manufactured from urea, which has its own supply chain vulnerabilities. An AdBlue shortage would effectively immobilise the diesel fleet even if diesel itself remained available.

What Happens If Reeves Is Wrong

The UK government's response framework for fuel emergencies operates primarily under the Energy Act 1976, supplemented by the Civil Contingencies Act 2004, rather than the more recent Energy Act 2023 [21]. The National Emergency Plan for Fuel (NEP-F) establishes a tiered priority system [22].

Under NEP-F, emergency services — police, fire, ambulance — receive top priority for fuel access during a severe disruption, followed by utility companies (gas, electricity, water), then public transport operators [22]. Ordinary motorists face potential restrictions including quantity limits per purchase and reduced petrol station operating hours [22].

In 2021, the government's response timeline was measured in days rather than hours. BP's initial disclosure came on 23 September; by 24 September, sales had surged 80% [12]. The Competition Act exemption allowing oil companies to coordinate supply came on 26 September. Military tanker drivers were placed on standby on 28 September. The Reserve Tanker Fleet of 80 vehicles was deployed on 29 September. Nearly 200 military tanker personnel were deployed on 4 October [12]. Full recovery to normal stock levels took until 22 October — nearly a month [12].

The 2021 crisis, however, was a distribution problem, not a supply problem. Adequate fuel existed in storage; it simply could not reach forecourts fast enough. A genuine supply shortage driven by the Strait of Hormuz closure would present a fundamentally different challenge, one that military tanker drivers cannot solve because the fuel itself may not be in the country.

The government has confirmed it is reviewing its national fuel emergency plans [23], which Reeves described as routine "contingency planning for a whole range of scenarios" [1]. Whether this represents prudent preparation or tacit acknowledgement that the situation is more fragile than publicly stated is a matter of interpretation.

What Is Actually True

Reeves is correct that the immediate impact is primarily on price rather than physical supply. The UK still has fuel in storage and flowing through its import terminals. No national shortage exists as of mid-April 2026.

But several of her implicit claims are weaker. The assertion that "there's plenty of supply" sits uncomfortably with reserves that cover fewer than 25 days at current consumption rates and an IEA benchmark of 90 days [9][10]. The suggestion that the Middle East matters little because the UK gets "very little of our oil and gas from the Middle East" [1] understates the indirect exposure through kerosene imports, refinery feedstock dependencies, and the global price-setting mechanism.

The Shell CEO and the Chancellor are, in a sense, talking about different time horizons. Reeves is describing conditions today; Sawan is describing where conditions will be in two to four weeks if the Strait of Hormuz remains closed. The question is not which of them is right now, but which of them will be right by May.

The honest answer is that nobody can say with confidence. What the data does say is that the UK's margin for error — measured in days of fuel reserves, number of operating refineries, import dependency ratios, and driver availability — is thinner than at any point in recent decades. That does not make a crisis inevitable. It makes a crisis harder to prevent if one more thing goes wrong.