How much profit does a petrol station make per litre?

A typical UK forecourt's gross retail margin on petrol and diesel is approximately 5–10 pence per litre (5–10 ct/litre in Europe). After deducting credit card transaction fees (~0.5–1.5p/l), staff and electricity costs, maintenance, and rent/rates, the net profit on fuel sales is very small — often 1–3p/litre. Motorway service areas (MSAs) have higher margins of 15–25p/litre, reflecting the captive customer base. Supermarket forecourts deliberately price at near-zero fuel margin as a loss leader to drive store footfall — their profit comes from the grocery spend customers make while filling up.

Why is petrol cheaper at supermarkets?

Supermarket forecourts (Tesco, Asda, Morrisons, Sainsbury's in the UK; Leclerc, Carrefour, Intermarché in France) deliberately sell fuel at near-zero or minimal margin as a loss leader. The economics: a customer who fills up their tank at the supermarket will typically spend £50–100 on groceries at the same visit. The incremental gross margin on those groceries (20–30%) is far more valuable than 5p/litre on 50 litres of petrol. Supermarkets also benefit from high volume (lowering per-litre fixed costs) and negotiating power with fuel wholesale suppliers. The result is prices typically 3–8p/litre cheaper than branded forecourts.

Why is petrol more expensive on motorways?

Motorway service area (MSA) petrol prices are typically 10–20 pence/litre (10–20 ct/litre) higher than nearby off-motorway forecourts. The reason is economic: MSA operators (Moto, Welcome Break, Roadchef in the UK) pay very high concession rents to Highways England/National Highways for the right to operate at motorway locations. Rent can be £1–5 million per year per site. These costs must be recovered through the fuel margin, hence the premium. MSA operators know that many motorway customers either don't want to leave the motorway or don't know cheaper alternatives are nearby — so they can sustain higher margins. See our dedicated motorway fuel prices guide for strategies to avoid the premium.

Petrol Station Guide: How Forecourts Work, Margins & Why Supermarkets Are Cheapest

Published 1 October 2026 · Updated 19 October 2026

Most drivers take petrol stations for granted, but forecourt economics are complex — and explain much of the variation in fuel prices between locations. Why is the Tesco forecourt consistently 5p cheaper than the branded station next door? Why do motorway prices seem extortionate? And how do petrol stations actually make money when fuel margins are tiny? This guide explains the full economics of petrol station operation.

For live petrol and diesel price data by country, use the fuel price explorer. For the motorway fuel premium deep-dive, see our motorway fuel prices guide. For the retail margin as a component of pump price, see our petrol price per litre explained guide and the fuel retail margin glossary entry.

Forecourt fuel margin: what a petrol station actually earns

Cost/revenue item	Typical UK value (p/litre)	Notes
Pump price (revenue)	150–160p/l	Varies with crude and local competition
Wholesale fuel cost (terminal gate)	~140–148p/l	Product cost + distribution to site
Gross retail margin	~5–10p/l	Before site operating costs
Card transaction fees	~0.8–1.5p/l	~80% of transactions are card payments
Site electricity (pumps, lighting, canopy)	~0.5–1.0p/l	Varies significantly with volume
Staff (forecourt)	~0.5–1.5p/l	Lower for unmanned/pay-at-pump sites
Rent, rates, maintenance	~1.0–3.0p/l	Highest cost variable; depends on location
Net margin on fuel	~1–4p/l	Many small sites make <2p/l

The implication: a small independent forecourt selling 1.5 million litres per year at a 3p/l net margin makes approximately £45,000 profit on fuel alone — very little for a capital-intensive business. The shop and car wash are critical to viability.

Why supermarkets price fuel cheapest

UK and European supermarket chains (Tesco, Asda, Sainsbury's, Morrisons; Leclerc, Carrefour, E.Leclerc in France) operate forecourts as deliberate loss leaders:

Pricing fuel at 3–8p/litre below branded competitors attracts footfall to the store
A customer who fills a 50-litre tank while doing a £75 grocery shop generates far more margin from groceries than from fuel
Supermarkets negotiate better wholesale fuel prices due to very high volumes (some sites sell 10+ million litres/year)
Supermarkets have lower staffing ratios per litre sold (large, highly automated pay-at-pump sites)
In France, hypermarket forecourts (Grande Surface) are even more dominant — accounting for over 55% of road fuel volume sold

The CMA (UK Competition and Markets Authority) 2023 fuel market investigation found that supermarkets were passing wholesale price falls through to pump prices faster than branded operators — confirming their role as price setters in local markets.

The motorway price premium explained

Concession rents drive motorway premiums
UK motorway service area (MSA) operators — Moto, Welcome Break, Roadchef, Extra — pay concession rents to National Highways for the right to operate at specific motorway locations. These rents can reach £1–5 million per year for prime locations. This cost, combined with a captive customer base that finds it inconvenient to exit the motorway, allows MSAs to charge 15–20p/litre more than off-motorway alternatives. For strategies to avoid the premium, see our motorway fuel prices guide.

How forecourts set their pump prices

Pump prices are set by forecourt operators (not by oil companies in most cases) through a process driven by:

Terminal gate price: the wholesale price they paid their fuel supplier, delivered to their underground tanks
Local competition: prices at nearby stations — operators use price monitoring apps (Kalibrate, OPIS) to track competitor pricing in real time
Chain policy: branded networks (BP, Shell, Esso, Jet) may have recommended pricing but individual dealers/operators set the actual price
Volume targets: stations running low on throughput may drop prices to attract volume; busy stations may price up

For the full pump price decomposition, see our petrol price per litre explained guide.

Types of forecourt operator

Type	Examples	Pricing strategy	Margin profile
Supermarket forecourt	Tesco, Asda, Leclerc	Loss leader; lowest prices	Near-zero fuel margin; grocery makes profit
Motorway service area	Moto, Welcome Break	Captive premium	15–20p/l above market; high concession rent
Branded dealer	BP, Shell, Esso (dealer-owned)	Market tracking + small premium	5–8p/l; shop revenue critical
Unbranded independent	Local independents	Price competitive	3–6p/l; typically cheapest branded alternative
Hypermarket (France/EU)	Carrefour, E.Leclerc	Loss leader; competitive	Similar to UK supermarkets; dominant market share

Frequently asked questions

How much profit does a petrol station make per litre? Gross retail fuel margin is typically 5–10p/litre (5–10 ct/l) in the UK/EU. After card fees, electricity, staff, rent, and maintenance, net margin on fuel alone is approximately 1–4p/litre. Motorway services earn 15–20p/litre through captive-customer pricing. Most forecourts depend on shop, coffee, and car wash revenue to be profitable — fuel margins alone are usually insufficient.: Gross retail fuel margin is typically 5–10p/litre (5–10 ct/l) in the UK/EU. After card fees, electricity, staff, rent, and maintenance, net margin on fuel alone is approximately 1–4p/litre. Motorway services earn 15–20p/litre through captive-customer pricing. Most forecourts depend on shop, coffee, and car wash revenue to be profitable — fuel margins alone are usually insufficient.
Why is petrol cheaper at supermarkets? Supermarkets use forecourts as loss leaders — pricing fuel 3–8p/litre below branded competitors to drive in-store footfall. The grocery margin on a £75 shop is far more valuable than the fuel margin on a tank fill. Supermarkets also benefit from high fuel volumes (better wholesale prices) and automated pay-at-pump sites (lower staffing cost per litre). UK CMA investigations have confirmed supermarkets price competitively and pass wholesale falls through faster than branded operators.: Supermarkets use forecourts as loss leaders — pricing fuel 3–8p/litre below branded competitors to drive in-store footfall. The grocery margin on a £75 shop is far more valuable than the fuel margin on a tank fill. Supermarkets also benefit from high fuel volumes (better wholesale prices) and automated pay-at-pump sites (lower staffing cost per litre). UK CMA investigations have confirmed supermarkets price competitively and pass wholesale falls through faster than branded operators.
Why is petrol more expensive on motorways? Motorway service areas pay high concession rents (£1–5m/year) to operate at motorway locations. Combined with a captive customer base, this allows MSAs to charge 15–20p/litre above off-motorway alternatives. The premium is not primarily the oil company's — it is the MSA operator recovering its real estate cost from drivers who find it inconvenient to exit. Planning ahead and using off-motorway forecourts saves significant money.: Motorway service areas pay high concession rents (£1–5m/year) to operate at motorway locations. Combined with a captive customer base, this allows MSAs to charge 15–20p/litre above off-motorway alternatives. The premium is not primarily the oil company's — it is the MSA operator recovering its real estate cost from drivers who find it inconvenient to exit. Planning ahead and using off-motorway forecourts saves significant money.