Fuel Price Check Analysis – Week of April 28, 2026 Petrol (E10) 155.4p 0.6% (-0.9p) 7d avg: 155.8p Prices stable | Super Unleaded (E5) 172.9p 0.9% (-1.6p) 7d avg: 173.5p Prices dipping | Diesel (B7) 178.1p 1.2% (-2.1p) 7d avg: 179.1p Prices dipping | Super Diesel (SDV) 197.7p 1.3% (-2.6p) 7d avg: 198.8p Prices dipping |
Fuel Price Check Analysis – Week of April 28, 2026 Petrol (E10) 155.4p 0.6% (-0.9p) 7d avg: 155.8p Prices stable | Super Unleaded (E5) 172.9p 0.9% (-1.6p) 7d avg: 173.5p Prices dipping | Diesel (B7) 178.1p 1.2% (-2.1p) 7d avg: 179.1p Prices dipping | Super Diesel (SDV) 197.7p 1.3% (-2.6p) 7d avg: 198.8p Prices dipping |

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 Friday, 19th June 2026 at 05:15
28
Local Stations
48
Brands (SA Area)
22.0p
Max Price Gap
#27
UK Ranking REGION
Key Takeaways
  • Cheapest petrol: 135.9p at Esso
  • Potential savings: Up to £12.10 per tank
  • 159 stations tracked across 48 brands
  • Prices have decreased 1.5p this week

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 23% nationally. Over the past week, E10 petrol prices in SA have Decreased 1.5p (1%)

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 22.0p per litre. For an average 55-litre family car, that's a saving of over £12.10 on a single tank.

Market Competition: Moderate competition

Competition Level: High

Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross has 159 active fuel stations across 48 different brands, with a brand diversity index of 0.30 - indicating healthy market competition.

The price spread between cheapest and average stations is 18.2p, 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:
135.9p at Esso, PRL St Clears, St Clears Roundabout,

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 (Esso) has beaten the supermarkets to the top spot today.

Fuel Type Availability

E10
Unleaded (E10)
Widely available
156 / 159 Stations (98.1%)
E5
Super Unleaded (E5)
Moderate availability
94 / 159 Stations (59.1%)
B7
Diesel (B7)
Widely available
155 / 159 Stations (97.5%)
SDV
Premium Diesel
Moderate availability
51 / 159 Stations (32.1%)

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
Esso
PRL St Clears, St Clears Roundabout, , SA33 4JW
135.9p
BEST PRICE
2
Esso
Llanrhidian,Gower,Swansea, , SA3 1ES
138.9p
+3.0p
3
Test22
75, NEWTON ROAD, MUMBLES, ABERTAWE, SA3 4BN, ABERTAWE, Wales , SA3 4BN
147.1p
+11.2p
4
Forecourt AAS 1
FLAT, 83, NEWTON ROAD, MUMBLES, ABERTAWE, SA3 4BN, ABERTAWE, Wales , SA3 4BN
147.3p
+11.4p
5
MURCO
GWALIA GARAGE, RHYDARGAEAU, CARMARTHEN , SA32 7DR
149.9p
+14.0p
6
MURCO
TANERDY GARAGE, TANERDY , CARMARTHEN , SA31 2EY
149.9p
+14.0p
7
Windy Corner Garage
Windy Corner Garage, PENCADER , SA39 9HP
149.9p
+14.0p
8
Murco
DERWYDD GARAGE, CYNWYL ELFED, CARMARTHEN, SA33 6TP, CARMARTHEN, Wales , SA33 6TP
151.9p
+16.0p
9
MORRISONS
PARC PENSARN, CARMARTHEN, CARMARTHENSHIRE, WALES , SA31 2NF
152.9p
+17.0p
10
TEXACO
TOWY SERVICE STATION, THE BRIDGE, CAERFYRDDIN, SA31 2BN, CAERFYRDDIN, Wales , SA31 2BN
152.9p
+17.0p

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
Esso
PRL St Clears, St Clears Roundabout, , SA33 4JW
143.9p
+32.9p
3
Esso
Llanrhidian,Gower,Swansea, , SA3 1ES
158.9p
+47.9p
4
MURCO
GWALIA GARAGE, RHYDARGAEAU, CARMARTHEN , SA32 7DR
162.9p
+51.9p
5
Windy Corner Garage
Windy Corner Garage, PENCADER , SA39 9HP
162.9p
+51.9p
6
MORRISONS
PARC PENSARN, CARMARTHEN, CARMARTHENSHIRE, WALES , SA31 2NF
163.9p
+52.9p
7
MURCO
TANERDY GARAGE, TANERDY , CARMARTHEN , SA31 2EY
163.9p
+52.9p
8
TEXACO
TOWY SERVICE STATION, THE BRIDGE, CAERFYRDDIN, SA31 2BN, CAERFYRDDIN, Wales , SA31 2BN
163.9p
+52.9p
9
Murco
DERWYDD GARAGE, CYNWYL ELFED, CARMARTHEN, SA33 6TP, CARMARTHEN, Wales , SA33 6TP
163.9p
+52.9p
10
Murco
C K'S SUPERMARKET, OLD ST. CLEARS ROAD, JOHNSTOWN, CARMARTHEN, Wales , SA31 3HL
166.9p
+55.9p

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 48 brands operating across 159 stations. Ranking in the top 23% nationally makes this an excellent area for fuel savings, while with a 18.2p price gap between cheapest and average stations, careful selection could save £10.01 per tank."

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

Frequently Asked Questions

As of June 19, 2026, the cheapest station is Esso at 135.9p per litre.

There is currently a 22.0p 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 £12.10 per tank.

Not currently. An independent or oil-company brand (Esso) 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: 05:51, 19 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 Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross was last synchronized at 05:15 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) 1.5p
Was: 155.6p → Now: 154.1p
Diesel (B7) 1.4p
Was: 175.6p → Now: 174.2p

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
Esso Test22 Forecourt AAS 1 MURCO Windy Corner Garage