Fuel Price Check Analysis – Week of April 28, 2026 Petrol (E10) 155.4p 0.6% (-1p) 7d avg: 156p Prices dipping | Super Unleaded (E5) 173p 0.9% (-1.6p) 7d avg: 173.8p Prices dipping | Diesel (B7) 178.1p 1.3% (-2.3p) 7d avg: 179.4p Prices dipping | Super Diesel (SDV) 197.7p 1.4% (-2.8p) 7d avg: 199.2p Good time to fill up |
Fuel Price Check Analysis – Week of April 28, 2026 Petrol (E10) 155.4p 0.6% (-1p) 7d avg: 156p Prices dipping | Super Unleaded (E5) 173p 0.9% (-1.6p) 7d avg: 173.8p Prices dipping | Diesel (B7) 178.1p 1.3% (-2.3p) 7d avg: 179.4p Prices dipping | Super Diesel (SDV) 197.7p 1.4% (-2.8p) 7d avg: 199.2p Good time to fill up |

Today’s Cheapest Petrol and Diesel in Didcot, Blewbury, Harwell: The Full Report

A comprehensive breakdown of fuel prices in the Didcot, Blewbury, Harwell area. We analyze the market data to help you save on your next fill-up.

Jonathan Mathews
Jonathan Mathews
Automotive Data Analyst
10+ years automotive industry
Last Updated Thursday, 18th June 2026 at 23:15
5
Local Stations
31
Brands (OX Area)
7.0p
Max Price Gap
#71
UK Ranking REGION
Key Takeaways
  • Cheapest petrol: 149.9p at VALERO
  • Potential savings: Up to £3.85 per tank
  • 81 stations tracked across 31 brands
  • Prices have decreased 0.6p this week

Motorists in Didcot, Blewbury, Harwell are currently paying above-average prices compared to other UK regions. Over the past week, E10 petrol prices in OX have Decreased 0.6p (0.4%)

According to our latest data feed from the Competition and Markets Authority (CMA), selecting the right forecourt in Didcot, Blewbury, Harwell could save you up to 7.0p per litre. For an average 55-litre family car, that's a saving of over £3.85 on a single tank.

Market Competition: Moderate competition

Competition Level: High

Didcot, Blewbury, Harwell has 81 active fuel stations across 31 different brands, with a brand diversity index of 0.38 - indicating healthy market competition.

The price spread between cheapest and average stations is 8.6p, revealing significant price differences - shop around to save!

Today's Best Value

Cheapest E10 Petrol in Didcot, Didcot, Blewbury, Harwell:
149.9p at VALERO, 52-60 WANTAGE ROAD, DIDCOT, OXFORDSHIRE, ENGLAND

Cheapest B7 Diesel in Didcot, Didcot, Blewbury, Harwell:
169.9p at VALERO, 52-60 WANTAGE ROAD, DIDCOT, OXFORDSHIRE, ENGLAND

Surprisingly, an independent or branded station (VALERO) has beaten the supermarkets to the top spot today.

Fuel Type Availability

E10
Unleaded (E10)
Widely available
81 / 81 Stations (100%)
E5
Super Unleaded (E5)
Widely available
69 / 81 Stations (85.2%)
B7
Diesel (B7)
Widely available
81 / 81 Stations (100%)
SDV
Premium Diesel
Moderate availability
51 / 81 Stations (63%)

Top 5 cheapest petrol stations (E10)

Here is the verified list of the most affordable places to buy standard Unleaded petrol in Didcot, Blewbury, Harwell today.

PETROL LEADERBOARD Live Data
1
VALERO
52-60 WANTAGE ROAD, DIDCOT, OXFORDSHIRE, ENGLAND , OX11 0BT
149.9p
BEST PRICE
2
SAINSBURY'S
CENTRAL DRIVE, DIDCOT, ENGLAND , OX11 7ND
151.9p
+2.0p
3
TESCO
WALLINGFORD RD, NORTH MORETON, DIDCOT, ENGLAND , OX11 9BZ
153.9p
+4.0p
4
SHELL
BLEWBURY SERVICE STATION, LONDON ROAD, BLEWBURY, DIDCOT, England , OX11 9NU
155.9p
+6.0p
5
TEXACO
MURCO FILLING STATION, NEWBURY ROAD, CHILTON, DIDCOT, England , OX11 0RW
156.9p
+7.0p

Top 5 cheapest diesel stations (B7)

For diesel drivers, the price variance can often be even higher. The following stations are currently offering the best value for B7 Diesel in the Didcot, Blewbury, Harwell area.

DIESEL LEADERBOARD Live Data
1
VALERO
52-60 WANTAGE ROAD, DIDCOT, OXFORDSHIRE, ENGLAND , OX11 0BT
169.9p
BEST PRICE
2
SAINSBURY'S
CENTRAL DRIVE, DIDCOT, ENGLAND , OX11 7ND
173.9p
+4.0p
3
SHELL
BLEWBURY SERVICE STATION, LONDON ROAD, BLEWBURY, DIDCOT, England , OX11 9NU
179.9p
+10.0p
4
TESCO
WALLINGFORD RD, NORTH MORETON, DIDCOT, ENGLAND , OX11 9BZ
186.9p
+17.0p
5
TEXACO
MURCO FILLING STATION, NEWBURY ROAD, CHILTON, DIDCOT, England , OX11 0RW
186.9p
+17.0p

How to save on fuel in Didcot, Blewbury, Harwell

While choosing the cheapest station is the easiest way to save, changing your driving habits can also make a significant difference to your monthly spend.

Drive Smoothly

Aggressive acceleration and heavy braking can increase fuel consumption by up to 40% in stop-and-go traffic around Didcot, Blewbury, Harwell.

Reduce Weight

Carrying an extra 50kg in your boot increases fuel consumption by 1-2%. Clear out unnecessary items.

Market Analyst Commentary
CFP Research Team

"Didcot, Blewbury, Harwell benefits from strong market competition with 31 brands operating across 81 stations. With a 8.6p price gap between cheapest and average stations, careful selection could save £4.73 per tank, while interestingly, VALERO is beating supermarkets on price today."

For more detailed savings, explore our Interactive Fuel Map to scan the entire region visually.

Frequently Asked Questions

As of June 18, 2026, the cheapest station is VALERO at 149.9p per litre.

There is currently a 7.0p difference between the cheapest and most expensive stations in Didcot, Blewbury, Harwell. For a standard family car, this equals a saving of £3.85 per tank.

Not currently. An independent or oil-company brand (VALERO) is actually cheaper than the local supermarkets today.

Our Analysis Methodology

Data Collection
  • Direct feed from UK Government CMA API
  • Updated every 30 minutes via automated polling
  • Zero user-submitted prices (prevents manipulation)
  • Last sync: 23:24, 18 Jun 2026
Quality Assurance
  • Automated anomaly detection for pricing errors
  • Cross-referenced against regional averages
  • Outliers flagged for manual review
  • Historical data tracked for trend validation
Verified Data Source: All prices displayed on this page are sourced directly from the Competition and Markets Authority's official fuel price transparency scheme. We do not accept payments from retailers to alter rankings or display preferential pricing.
Data Accuracy & Methodology

Source: We retrieve real-time pricing data directly from the UK Government CMA Open Data Scheme.

Frequency: Data for Didcot, Blewbury, Harwell was last synchronized at 23:15 today. We update our database every 4 hours to ensure accuracy.

Disclaimer: While we strive for 100% accuracy, forecourt prices can change instantly. The prices listed above were correct at the time of our last server sync.

Editorial Policy

CheckFuelPrices is independent. We do not accept payment from fuel brands to alter rankings. Read our full policy.

📈 7-Day Price Movement
Petrol (E10) 0.6p
Was: 157.1p → Now: 156.5p
Diesel (B7) Stable
Was: 180.3p → Now: 180.5p

Visualise the Savings

View 10 local stations on our interactive map.

Open Live Map
Popular Brands in Didcot, Blewbury, Harwell
VALERO SAINSBURY'S TESCO SHELL TEXACO