Understanding the link between conflict and UK wholesale gas prices

News of conflict involving Iran can increase uncertainty around major energy supply routes. That uncertainty can raise wholesale natural gas prices through a higher risk premium, higher shipping and insurance costs, and tighter global LNG availability. UK wholesale benchmarks can rise even when the UK is not buying gas directly from the region because LNG cargoes move to the highest priced markets and UK buyers then face higher replacement costs. When wholesale costs stay higher, suppliers and the wider market tend to reprice contracts and tariffs to reflect the new cost of buying gas.

How can a conflict involving Iran affect wholesale gas prices
It can increase the perceived risk of disruption to major LNG shipping routes and nearby energy infrastructure. Traders then price in that risk through higher forward prices and a higher risk premium.

Does the UK buy most of its gas from Iran
No. The impact is mostly indirect because UK wholesale prices are influenced by connected European and global LNG markets.

Why do higher wholesale costs lead to higher gas prices overall
Wholesale costs are a large part of a supplier’s cost base. When wholesale prices move higher and stay higher, new contract offers and variable tariffs tend to be repriced to reflect the higher cost of buying gas, and managing risk.

Energy markets react quickly to perceived disruption. When a conflict increases the chance of delays to shipping lanes or damage to energy infrastructure, traders and suppliers often pay more to secure gas supplies for future delivery. That pushes up wholesale prices even before any physical shortage occurs.

The situation involving Iran matters for gas markets because of its position near key sea routes used by LNG carriers. The UK uses piped natural gas, but the price that suppliers pay often follows wholesale benchmarks that move with global supply and demand. When the global LNG market tightens, cargoes can be diverted to the highest priced markets, which can lift UK wholesale prices too.

For background on the Strait of Hormuz and LNG flows, see the International Energy Agency overview.

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Why the UK market is connected to global events

The UK has a mix of gas supply sources, including domestic production and imports by pipeline. Norway is a major supplier and the UK Continental Shelf also contributes. Even with diverse sources, the wholesale price can still move with global events because the UK and Europe participate in a connected market.

Global events often change the price more than the physical availability for the UK in the short term. That happens because trading prices reflect expectations, not only current flows.

  • Europe and the UK compete for LNG cargoes LNG is shipped to the markets offering the best net price. If risk rises in one region, more buyers compete for alternative cargoes and prices adjust across many hubs.
  • Pipeline gas and LNG are priced against market benchmarks Many contracts reference hub prices or are renegotiated with hub pricing in mind. That links the cost of supply to wholesale markets even when molecules come from nearby sources.
  • Forward prices react to uncertainty When the market reassesses risks around shipping, infrastructure, or future supply, it can reprice months ahead. Suppliers then hedge at those higher forward prices.

For an overview of UK gas supply and the role of imports, see the UK government energy trends publications.

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The role of the Strait of Hormuz in global supply

The Strait of Hormuz is a narrow waterway located between Iran and Oman. It is a major transit route for LNG shipments from the Gulf. The International Energy Agency estimates that LNG shipments transiting the strait account for roughly one fifth of global LNG trade. International Energy Agency overview

When the risk level rises in or around the strait, wholesale gas prices can jump for two main reasons.

  • Supply route risk Shipping companies may reroute, slow down, or temporarily pause voyages. Even without a full closure, higher insurance costs and longer voyage times reduce effective supply.
  • Replacement cost Buyers compete for LNG cargoes from other regions to cover any potential shortfall. That bidding pressure can lift global LNG prices, which can feed into UK wholesale gas benchmarks.

This is the mechanics behind price spikes. The market moves on the risk of disruption, not only on confirmed disruption. For UK businesses using natural gas for heating, hot water, and process heat, the impact is normally seen through higher wholesale costs that suppliers must manage in their portfolios.

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Market sentiment and the risk premium

Prices can change even when physical supply has not yet fallen. Traders and suppliers will often pay more to lock in gas for future delivery when they see higher risk. This extra cost is commonly described as a risk premium.

In practical terms, the risk premium rises when market participants cannot confidently answer questions like these.

  • Will LNG carriers be able to transit as planned
  • Will shipping insurance and freight costs rise further
  • Will cargoes be delayed, cancelled, or diverted to other regions
  • Will buyers need to replace supply at short notice

Uncertainty increases price volatility. That matters for the UK because wholesale benchmarks used in supply contracts can respond quickly to global news flow and changes in expected supply.

For a general explanation of the UK National Balancing Point as a wholesale trading point, see ICE contract information.

Digital graph showing the upward trend of wholesale gas prices in the energy market.

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How higher wholesale costs lead to higher gas prices overall

Wholesale prices are the prices paid for gas in the market before it is supplied to end users. In the UK, these prices are commonly referenced through wholesale benchmarks such as NBP and through supplier hedging prices. When wholesale prices rise, the underlying cost to supply gas rises across the market.

  • Suppliers buy energy in advance Many suppliers hedge by buying gas forward. The cost of those hedges rises when the market reprices wholesale risk. New hedges then lock in higher costs for future supply periods.
  • Suppliers manage imbalance risk Real world demand rarely matches forecasts. When day ahead and within day wholesale prices are higher, the cost of balancing a supply portfolio also increases.
  • Risk and credit costs rise Volatile markets often require higher collateral and wider risk margins. Those costs are part of how suppliers price contracts for future delivery.
  • Retail pricing updates follow For fixed deals, higher wholesale prices mainly show up in new quotes and renewals because suppliers price from current hedging costs. For variable and deemed rates, price changes can feed through faster depending on tariff terms and notice periods.

These steps are the main mechanics. A sustained increase in wholesale prices tends to lift the overall level of gas prices offered in the market because suppliers must cover the higher cost of buying gas and the higher cost of managing uncertainty.

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What makes up your gas price

Wholesale costs matter, but they are only one part of the total price a business pays for gas. Looking at the other components helps put wholesale volatility into context.

  • Wholesale energy cost The market cost of gas, often hedged in advance. This is the component most directly affected by global market movements.
  • Network costs Charges for transporting gas through transmission and distribution networks. These costs are set through regulated frameworks and typically change on their own timetable.
  • Policy costs and taxes Depending on your setup, this can include VAT and other charges linked to energy policy. Some taxes and reliefs depend on eligibility and how the site is classified.
  • Supplier operating costs Billing, metering, customer service, credit risk, and the cost of managing imbalances.

In many cases, a wholesale move changes the overall price, but the full change is moderated by the other components. That is why two businesses can experience different outcomes depending on contract type, meter setup, and how charges are applied.

For general guidance on business energy VAT rules, see GOV.UK guidance on VAT rates.

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Impact on businesses in a fixed contract

If your business is currently in a fixed term energy contract you are in a relatively safe position. A fixed contract means you have agreed to pay a set price for every unit of gas you use for the duration of the agreement. Even if wholesale prices rise sharply your supplier cannot change the unit rate you pay until your contract reaches its end date.

This structure helps with budgeting. It also means that the main point of exposure is when you renew, because offers in the market will reflect current wholesale costs and expectations of future volatility. You can find more about when to renew a business energy contract to stay ahead of these changes.

Pro Tip
Even if your contract does not end for another six months you can often secure a future rate now. This can help you avoid further price increases if the conflict in the Middle East continues to push wholesale costs upward.
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Impact on businesses out of contract

Businesses that are out of contract face the most immediate exposure during periods of wholesale volatility. When a contract ends and is not renewed or replaced, the business is usually moved onto out of contract or deemed rates. These rates are variable, so the supplier can change prices with limited notice as wholesale costs move.

If wholesale gas prices rise because traders price in higher risk to supply routes, an out of contract business may see higher bills more quickly than a business on a fixed deal. See Ofgem guidance on deemed contracts for how deemed contracts work and the licence conditions that govern them.

For a deeper look at this situation you can read our guide on out of contract business energy.

Contract StatusImpact of Rising Wholesale PricesPrice Stability
Fixed Term ContractNo immediate impact on unit ratesHigh
Out of Contract (Deemed)Immediate and direct price increasesLow
Variable RatePrices adjusted as the market movesMedium to Low
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Steps to take during market volatility

When the news is dominated by conflict and energy prices are fluctuating it is important to take a structured approach to your business utilities. Understanding your current position is the first step toward protecting your company from rising costs.

  • Check your current contract end date to see how much protection you have left.
  • Review your recent invoices to confirm if you are on a fixed or variable rate.
  • Investigate your energy usage patterns to see if there are ways to reduce consumption while prices are high.
  • Monitor the market news to understand if the conflict shows signs of easing or escalating.
  • Consider using a professional service to manage your renewals and procurement.

Business energy management tablet on a desk for strategic utility procurement and planning.

Using tools like a business energy letter of authority can allow an authorised third party to gather information on your behalf. This can be useful when the market is moving quickly and decisions need to be made based on accurate and up to date data.

It is also a good time to ensure your billing is accurate. Many small businesses benefit from installing updated technology to track usage. You can learn more about this in our guide to the benefits of smart meters for small businesses.

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This article has explained the fundamental reasons why international conflicts like the war involving Iran directly influence the price you pay for gas in the UK. By understanding the role of global shipping routes and the difference between contract types you can make more informed decisions for your business. For more educational resources on managing your company's utilities please explore our full range of guides.