UK Energy Market in Turmoil as Iran Conflict Triggers 2026 Price Shock

By Energy Solicitors Limited | March 2026

The UK energy market has entered a fresh period of volatility as the ongoing US‑Israel conflict with Iran disrupts global oil and gas flows, forcing British suppliers to rapidly withdraw fixed‑price tariffs and rethink their risk exposure.

For households and businesses already battling with years of sustained energy cost pressure, the sudden contraction in available fixed deals marks yet another reminder of how fragile the global energy supply chain remains. 

Such changes hint at the escalation of legal, regulatory and contractual disputes expected in the months ahead.

Fixed Deals Halve Overnight as Suppliers Retreat

Data from leading comparison platforms shows a dramatic collapse in fixed‑tariff availability. The number of fixed deals available to UK consumers plunged from 38 over last weekend to just 15 by Thursday, while prices for the remaining offers surged from £1,509-£1,898 to £1,640-£2,194.

Although rapid market retreats are expected during periods of uncertainty, the scale of this week’s withdrawal is truly exceptional. According to MoneySuperMarket, 65 tariffs have been pulled last week alone, compared with just 14 the week before.

Middle Eastern Conflict Sends Shockwaves Through Global Supply

The surge in wholesale prices has been directly linked to the new conflict across the Middle East, where the war has disrupted key oil and gas routes. Production slowdowns, pipeline interruptions and shipping delays have all contributed to a sharp rise in futures markets.

While prices had stabilised following the extreme spikes of 2023, they remain significantly higher than pre‑Ukraine‑war levels and this new escalation has undone much of the progress made over the past two years.

Big Six Fragment in Response to Market Pressure

Among the UK’s major suppliers, responses have varied dramatically:

• Octopus, EDF and reportedly E.On are still offering fixed rates.
• British Gas, Ovo and Scottish Energy have fully withdrawn their fixed deals for now.

Octopus has also taken the unusual step of introducing exit fees, something the company seldom employs.

A spokesperson for Octopus commented:
“We can no longer absorb the full cost of the energy we buy in advance for new fixed‑tariff customers if they choose to leave us during the period of the fix... Other suppliers have exit fees even in normal circumstances, but it's rare for Octopus.”

British Gas echoed the need for flexibility, stating:
“As a result of uncertainty in the global energy market, we are focusing on more flexible options for customers like our new Cap Tracker tariff that will always be priced below the cap.”

EDF said it is closely tracking developments but remains committed to offering apparent fair and competitive options:
“While global events can influence wholesale energy markets, we are monitoring conditions closely and remain focused on offering competitive and fair options for customers.”

What This Means for UK Businesses

For UK commercial energy users, this sudden shift raises serious concerns:

• Contractual disputes are expected to rise, especially around early termination and tariff compliance.
  
  
• Fixed‑rate contracts signed in recent months may become financially unsustainable, prompting renegotiation or legal intervention.
  
  
• Embedded exit clauses may see increased enforcement, especially for high‑consumption commercial clients.
  
  
• Mis‑selling claims may increase, particularly where suppliers promoted fixed deals without reasonable foresight of market instability.

Energy Solicitors are already seeing an increase in clients seeking support around:

• Disputed broker fees

• Mis‑sold fixed tariffs

• Unexpected contract variations

• Supplier withdrawal from previously agreed terms

•  Price‑cap misinterpretation and billing errors

Ongoing instability in wholesale markets is set to drive a rise in energy‑contract disputes, especially for SMEs bound by agreements secured during previous periods of heightened pricing.

The Price‑Cap Safety Net 

The UK’s energy price cap ensures that customers on variable tariffs are shielded from immediate increases until at least July 2026. However, if wholesale prices remain elevated, experts expect the cap to rise later in the year.

For businesses, who are not protected by the domestic cap, the impact will be felt far more quickly, with many suppliers already beginning to reprice non‑domestic contracts.

Need Legal Support?

As the energy market enters another period of extreme instability, Energy Solicitors is advising businesses and consumers facing contract concerns, unfair pricing or disputes with brokers or suppliers.

If you need support reviewing your agreements or understanding your rights in light of these developments, our team of specialist energy litigators is ready to help.