Fuel Price Check Analysis – Week of March 31, 2026 Petrol (E10) 155.4p 2.7% (+4.1p) 7d avg: 153.5p Hold off if you can | Super Unleaded (E5) 172.8p 2.6% (+4.4p) 7d avg: 170.8p Hold off if you can | Diesel (B7) 186.9p 3.8% (+6.9p) 7d avg: 183.9p Hold off if you can | Super Diesel (SDV) 204.4p 2.9% (+5.8p) 7d avg: 201.7p Hold off if you can |
Fuel Price Check Analysis – Week of March 31, 2026 Petrol (E10) 155.4p 2.7% (+4.1p) 7d avg: 153.5p Hold off if you can | Super Unleaded (E5) 172.8p 2.6% (+4.4p) 7d avg: 170.8p Hold off if you can | Diesel (B7) 186.9p 3.8% (+6.9p) 7d avg: 183.9p Hold off if you can | Super Diesel (SDV) 204.4p 2.9% (+5.8p) 7d avg: 201.7p Hold off if you can |

Today’s Cheapest Petrol and Diesel in Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross: The Full Report

A comprehensive breakdown of fuel prices in the Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross 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 Saturday, 4th April 2026 at 11:15
28
Local Stations
55
Brands (SA Area)
22.9p
Max Price Gap
#7
UK Ranking REGION
Key Takeaways
  • Cheapest petrol: 134p at MURCO
  • Potential savings: Up to £12.60 per tank
  • 157 stations tracked across 55 brands

Motorists in Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross are currently enjoying some of the lowest fuel prices in the UK, ranking in the top 6% nationally. Over the past week, E10 petrol prices in SA have Increased 4.2p (2.8%)

According to our latest data feed from the Competition and Markets Authority (CMA), selecting the right forecourt in Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross could save you up to 22.9p per litre. For an average 55-litre family car, that's a saving of over £12.60 on a single tank.

Market Competition: Moderate competition

Competition Level: High

Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross has 157 active fuel stations across 55 different brands, with a brand diversity index of 0.35 - indicating healthy market competition.

The price spread between cheapest and average stations is 26.1p, revealing significant price differences - shop around to save!

Today's Best Value

Cheapest E10 Petrol in Swansea, Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross:
134p at MURCO, KNELSTON, REYNOLDSTON, GOWER SWANSEA

Cheapest B7 Diesel in Swansea, Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross:
111p at Test22, 75, NEWTON ROAD, MUMBLES, ABERTAWE, SA3 4BN, ABERTAWE, Wales

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

Fuel Type Availability

E10
Unleaded (E10)
Widely available
152 / 157 Stations (96.8%)
E5
Super Unleaded (E5)
Moderate availability
89 / 157 Stations (56.7%)
B7
Diesel (B7)
Widely available
150 / 157 Stations (95.5%)
SDV
Premium Diesel
Moderate availability
48 / 157 Stations (30.6%)

Top 10 cheapest petrol stations (E10)

Here is the verified list of the most affordable places to buy standard Unleaded petrol in Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross today.

PETROL LEADERBOARD Live Data
1
MURCO
KNELSTON, REYNOLDSTON, GOWER SWANSEA , SA3 1AR
134p
BEST PRICE
2
Esso
PRL St Clears, St Clears Roundabout, , SA33 4JW
135.9p
+1.9p
3
Esso
Llanrhidian,Gower,Swansea, , SA3 1ES
138.9p
+4.9p
4
Test22
75, NEWTON ROAD, MUMBLES, ABERTAWE, SA3 4BN, ABERTAWE, Wales , SA3 4BN
147.1p
+13.1p
5
Forecourt AAS 1
FLAT, 83, NEWTON ROAD, MUMBLES, ABERTAWE, SA3 4BN, ABERTAWE, Wales , SA3 4BN
147.3p
+13.3p
6
Murco
MAESYCOED, BEULAH, CASTELL NEWYDD EMLYN, SA38 9QE, CASTELL NEWYDD EMLYN, Wales , SA38 9QE
149.9p
+15.9p
7
Siop Y Ffrydiau
Siop Y Ffrydiau, Cenarth, Newcastle Emlyn , SA38 9JP
149.9p
+15.9p
8
Murco
DERWYDD GARAGE, CYNWYL ELFED, CARMARTHEN, SA33 6TP, CARMARTHEN, Wales , SA33 6TP
150.9p
+16.9p
9
TEXACO
PENSARNAU SERVICE STATION LTD, PENSARNAU, CASTELL NEWYDD EMLYN, SA38 9HS, CASTELL NEWYDD EMLYN, Wales , SA38 9HS
152.9p
+18.9p
10
Herons Way Service Station
Llanrhidian, Gower Swansea, Llanrhidian , SA3 1ES
153.9p
+19.9p

Top 10 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 Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross area.

DIESEL LEADERBOARD Live Data
1
Test22
75, NEWTON ROAD, MUMBLES, ABERTAWE, SA3 4BN, ABERTAWE, Wales , SA3 4BN
111p
BEST PRICE
2
MURCO
KNELSTON, REYNOLDSTON, GOWER SWANSEA , SA3 1AR
143p
+32.0p
3
Esso
PRL St Clears, St Clears Roundabout, , SA33 4JW
143.9p
+32.9p
4
Esso
Llanrhidian,Gower,Swansea, , SA3 1ES
158.9p
+47.9p
5
ESSO
A40, CARMARTHEN, CARMARTHEN, WALES , SA32 7EN
179.9p
+68.9p
6
Siop Y Ffrydiau
Siop Y Ffrydiau, Cenarth, Newcastle Emlyn , SA38 9JP
181.9p
+70.9p
7
Murco
MAESYCOED, BEULAH, CASTELL NEWYDD EMLYN, SA38 9QE, CASTELL NEWYDD EMLYN, Wales , SA38 9QE
182.9p
+71.9p
8
Murco
DERWYDD GARAGE, CYNWYL ELFED, CARMARTHEN, SA33 6TP, CARMARTHEN, Wales , SA33 6TP
183.9p
+72.9p
9
Northway Garage
14, NORTHWAY, BISHOPSTON, ABERTAWE, SA3 3JN, ABERTAWE, Wales , SA3 3JN
184.9p
+73.9p
10
Murco
C K'S SUPERMARKET, OLD ST. CLEARS ROAD, JOHNSTOWN, CARMARTHEN, SA31 3HL, CARMARTHEN, Wales , SA31 3HL
184.9p
+73.9p

How to save on fuel in Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross

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 Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross.

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

"Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross benefits from strong market competition with 55 brands operating across 157 stations. Prices have climbed 4.2p this week, so filling up sooner rather than later is advisable, while ranking in the top 6% nationally makes this an excellent area for fuel savings."

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

Frequently Asked Questions

As of April 4, 2026, the cheapest station is MURCO at 134p per litre.

There is currently a 22.9p difference between the cheapest and most expensive stations in Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross. For a standard family car, this equals a saving of £12.60 per tank.

Not currently. An independent or oil-company brand (MURCO) 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: 11:43, 04 Apr 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 Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross was last synchronized at 11:15 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) 4.2p
Was: 148.8p → Now: 153p
Diesel (B7) 5.8p
Was: 177.8p → Now: 183.6p

Visualise the Savings

View 20 local stations on our interactive map.

Open Live Map
Popular Brands in Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross
MURCO Esso Test22 Forecourt AAS 1 Murco