Heating oil customers have been told they need stronger protections after the CMA found clear gaps in support for the 1.5 million UK households that rely on oil to heat their homes and water.
This is one of those updates that will feel especially important if your home is off the gas grid. If you use heating oil, you already know the bill does not work like a normal monthly energy payment. You may need to buy a large amount at once, wait for delivery, watch the tank level, and hope the supplier honours the order when you need warmth most.
The Competition and Markets Authority (CMA) has now published its final heating oil market study. It says the market is generally competitive, but heating-oil households do not have the same level of protection as people using mains gas and electricity.
The part many households will notice first is the possible compensation angle. The CMA says around 1,700 customers may have been affected by possible breaches of contract where orders were cancelled. Some people then had to reorder at much higher prices or go without fuel, potentially costing them between £150 and £350 more.
For clarity, the price spike referred to in this post covers the period from February to April 2026. CMA figures show average heating oil prices rose from 64p per litre in February 2026 to 104p per litre in March 2026, before peaking at 123p per litre in April 2026. That April peak was around 92% higher than February. Prices then fell in May 2026, but remained above pre-spike levels.
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But the bigger story is wider than compensation. It is about whether off-grid households can trust essential heating suppliers to communicate clearly, honour agreed orders and support vulnerable customers when reliable heating matters most.
Heating Oil Customers: What the CMA has announced
The CMA has recommended that UK and devolved governments introduce stronger protections for heating-oil customers. The regulator says heating oil is essential for many households, especially in rural and off-grid communities, but customers can face large one-off bills of around £500 or more at a time.
The CMA launched its market study after conflict in the Middle East caused major disruption and sharp price rises. It says average heating-oil retail prices were, at their peak, 92% higher than February levels.
The sharpest movement happened between February and April 2026. CMA figures show average prices rose from 64p per litre in February to 104p per litre in March, then peaked at 123p per litre in April. Prices fell in May, but still remained higher than before the disruption.
Even so, the CMA says customers are not as well protected as those connected to the gas and electricity networks. That becomes a real problem during periods of volatility, when prices move quickly, delivery slots become stressful and households may have fewer options for urgent fuel.
Heating Oil Customers: Why heating-oil customers have fewer protections
If you use mains gas or electricity, you are used to a regulated supplier system, Ofgem rules, complaint processes, support obligations and clearer routes for escalation.
Heating oil is different. You usually buy oil from a distributor when your tank needs filling. Prices can change quickly, minimum order amounts may apply, and delivery depends on supplier availability, geography and local conditions.
For many homes, especially rural homes, this makes heating oil feel less predictable. A household can be warm and settled one week, then suddenly face a large order, delayed delivery or a price that has moved sharply.
That is why the CMA is recommending a more proportionate regulatory regime. In plain English, it wants clearer rules without turning heating oil into the same system as mains energy.
Heating Oil Customers: Who may be owed compensation
The CMA says around 1,700 customers were affected by possible breaches of contract after some heating oil orders were cancelled during the February to April 2026 price spike.
Those customers received refunds for their original orders, but the refund alone did not always solve the problem. Some had to reorder at significantly higher prices. Others may have gone without fuel.
The CMA says some people may have had to pay between £150 and £350 more for their heating oil as a result.
Some suppliers have agreed to compensate affected consumers. Where customers paid more to replace a cancelled order, they should receive a payment covering the difference. Where customers did not buy replacement oil, the CMA says their original orders should be honoured at the agreed price.
It is worth being careful here. This does not mean every heating-oil customer is owed money. It also does not mean every cancelled order during February to April 2026 automatically qualifies. The key question is whether your order was cancelled in circumstances that may have breached the contract and left you worse off.
Heating Oil Customers: What evidence affected customers should keep
If you placed a heating oil order between February and April 2026 and it was cancelled, keep everything connected to the order. The exact qualifying cases will depend on the supplier, contract and CMA compensation work, but this is the key price-spike period highlighted by the CMA’s price data.
That includes the original order confirmation, date and time of order, agreed price, volume ordered, expected delivery date, cancellation message, refund record, replacement order invoice, bank statement, emails, texts, screenshots, call notes and any complaint reference number.
If you had to order from another supplier at a higher price, keep that invoice too. If you went without fuel, keep notes showing what happened, including dates and any messages from the supplier.
This kind of paperwork can feel dull, but it gives you something solid if you need to ask the supplier what happens next or raise a complaint.
Heating Oil Customers: The new protections being recommended
The CMA is recommending a new regulatory regime for heating oil suppliers. It says this should include supplier registration and minimum standards.
Those standards would cover things like how prices are quoted, how cancellations are managed and how households can access independent dispute resolution when a problem cannot be sorted directly with the supplier.
The CMA also recommends clearer signposting of payment plans and minimum purchase volumes, plus a register for vulnerable households so they can be better protected.
Another important recommendation is a review of minimum order volumes. This matters because not every household can comfortably afford a large oil order in one go. Smaller order options could help some homes avoid choosing between waiting too long and paying more than they can manage.
Heating Oil Customers: How to order heating oil more safely
Before your next order, take a gentle but organised approach.
Compare more than one supplier where you can. Check the price per litre, delivery charge, minimum order amount, delivery window and cancellation terms before you pay.
Ask whether the quoted price is fixed once you order. If the supplier says prices can change before delivery, ask for that in writing so you know where you stand.
Keep your order confirmation somewhere easy to find. It should show the amount ordered, price, delivery details and supplier contact information.
If your household includes someone older, disabled, unwell, with young children or otherwise vulnerable, ask the supplier whether they offer any priority support, emergency delivery process or vulnerable customer note on the account.
And try not to wait until the tank is almost empty before ordering. That is not always easy when money is tight, but where possible, ordering earlier gives you more choice and less pressure.
Heating Oil Customers: What happens next
The CMA says it will now work with governments, regulators and industry to consider and take forward its recommendations.
It is also continuing discussions with suppliers about compensation for cancelled orders. The CMA says not all affected suppliers have agreed to compensate customers voluntarily, and it is preparing court-based enforcement action against firms that do not do so.
So for now, affected customers should keep evidence and watch for contact from their supplier. If you believe you were affected and hear nothing, contact the supplier directly and ask whether your cancelled order is part of the CMA compensation work.
Heating Oil Customers: Your practical next steps
Start by checking whether any heating-oil order you placed between February and April 2026 was cancelled. That is the key price-spike period shown in the CMA’s figures, with prices rising sharply in March and peaking in April. If your order was cancelled, gather your original order confirmation, cancellation notice, refund record and replacement-order invoice.
If you paid more for replacement oil, work out the difference between the original agreed price and the replacement price. You do not need to overcomplicate it. A simple note with dates, litres, price per litre and total cost is a good start.
If your supplier has not contacted you, ask them in writing whether your order is included in the CMA-related compensation review.
For future orders, keep confirmation emails and screenshots as standard household paperwork. Think of it like keeping a meter reading or insurance renewal notice. It is not exciting, but it protects you if something goes wrong.
If paying for oil is difficult, contact Citizens Advice or your local council to ask what support may be available for alternative-fuel households. Do this before the tank gets too low if you can.
No household should feel one cancelled delivery away from losing warmth or financial control. A warm home is not just about the fuel in the tank. It is about clear information, fair treatment and knowing what to do when plans change.
Useful related HUBS guides
For wider household heating and energy help, use the HUBS energy bill guides.
You may also want to read our guide on energy bill help options if you are under pressure.
For household maintenance and comfort planning, visit the HUBS home care guides.
If you want a simple review of your household costs, use the HUBS 3-minute bill reset checklist to spot which bill needs attention first.
Heating Oil Customers: Official help and support links
Read the CMA’s official heating oil announcement here: CMA: UK’s heating oil households need stronger protections.
Read the CMA heating oil market study case page here: CMA heating oil market study.
Read Citizens Advice guidance for households using oil, LPG, coal or wood here: Citizens Advice help if you use alternative fuels.
Check the Consumer Council heating oil price checker for Northern Ireland here: Consumer Council home heating oil price checker.
Find your local council here if you need help with emergency household support: GOV.UK find your local council.
Heating Oil Customers: People Also Asked…
Who uses heating oil in the UK?
Around 1.5 million UK households rely on heating oil, often because they are not connected to the mains gas grid. Many are in rural and off-grid communities.
When was the heating oil price spike?
The price spike highlighted by the CMA ran from February to April 2026. Average heating oil prices rose from 64p per litre in February to 104p per litre in March, before peaking at 123p per litre in April. Prices then fell in May, but remained higher than before the disruption.
Are heating-oil customers protected by Ofgem’s energy price cap?
No. Heating oil is not covered by Ofgem’s energy price cap in the same way as mains gas and electricity. Prices can move quickly and are affected by wholesale oil costs, delivery costs and local market conditions.
Who may get heating oil compensation?
The CMA says around 1,700 customers may have been affected by cancelled orders that potentially breached contracts. Some customers who paid more for replacement oil may receive compensation covering the difference, but not every heating-oil customer is automatically owed money.
What should I keep if my heating oil order was cancelled?
Keep the original order confirmation, agreed price, delivery date, cancellation message, refund record, replacement order invoice, bank statement, screenshots and any complaint reference number. This is especially important if the cancellation happened between February and April 2026.
How can I order heating oil more safely?
Compare suppliers, check whether the price is fixed once ordered, confirm delivery dates, keep written confirmation, understand cancellation terms and avoid waiting until your tank is nearly empty where possible.























