Today’s Cheapest Petrol and Diesel in Clase, Cwmrhydyceirw, Clydach, Morriston, Plasmarl, Plasmarl Industrial Estate, Swansea Enterprise Park, Ynystawe, Ynysforgan: The Full Report

A comprehensive breakdown of fuel prices in the Clase, Cwmrhydyceirw, Clydach, Morriston, Plasmarl, Plasmarl Industrial Estate, Swansea Enterprise Park, Ynystawe, Ynysforgan 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, 6th February 2026 at 02:50
14
Local Stations
44
Brands (SA Area)
5.3p
Max Price Gap
#2
UK Ranking REGION
Key Takeaways
  • Cheapest petrol: 124.6p at VST LLANTEG SERVICE STATION
  • Potential savings: Up to £2.92 per tank
  • 111 stations tracked across 44 brands
  • Prices have decreased 0.8p this week

Motorists in Clase, Cwmrhydyceirw, Clydach, Morriston, Plasmarl, Plasmarl Industrial Estate, Swansea Enterprise Park, Ynystawe, Ynysforgan are currently enjoying some of the lowest fuel prices in the UK, ranking in the top 2% nationally. Over the past week, E10 petrol prices in SA have Decreased 0.8p (0.6%)

According to our latest data feed from the Competition and Markets Authority (CMA), selecting the right forecourt in Clase, Cwmrhydyceirw, Clydach, Morriston, Plasmarl, Plasmarl Industrial Estate, Swansea Enterprise Park, Ynystawe, Ynysforgan could save you up to 5.3p per litre. For an average 55-litre family car, that's a saving of over £2.92 on a single tank.

Market Competition: Moderate competition

Competition Level: High

Clase, Cwmrhydyceirw, Clydach, Morriston, Plasmarl, Plasmarl Industrial Estate, Swansea Enterprise Park, Ynystawe, Ynysforgan has 111 active fuel stations across 44 different brands, with a brand diversity index of 0.40 - indicating healthy market competition.

The price spread between cheapest and average stations is 6.9p, revealing significant price differences - shop around to save!

Today's Best Value

Cheapest E10 Petrol in Swansea, Clase, Cwmrhydyceirw, Clydach, Morriston, Plasmarl, Plasmarl Industrial Estate, Swansea Enterprise Park, Ynystawe, Ynysforgan:
124.6p at VST LLANTEG SERVICE STATION, LLANTEG SERVICE STATION, LLANTEG, ARBERTH, SA67 8QD, ARBERTH, Wales

Cheapest B7 Diesel in Swansea, Clase, Cwmrhydyceirw, Clydach, Morriston, Plasmarl, Plasmarl Industrial Estate, Swansea Enterprise Park, Ynystawe, Ynysforgan:
135.7p at Asda, Upper Forest Way, Swansea

Surprisingly, an independent or branded station (VST LLANTEG SERVICE STATION) has beaten the supermarkets to the top spot today.

Fuel Type Availability

E10
Unleaded (E10)
Widely available
97 / 111 Stations (87.4%)
E5
Super Unleaded (E5)
Moderate availability
60 / 111 Stations (54.1%)
B7
Diesel (B7)
Widely available
96 / 111 Stations (86.5%)
SDV
Premium Diesel
Limited availability
27 / 111 Stations (24.3%)

Top 10 cheapest petrol stations (E10)

Here is the verified list of the most affordable places to buy standard Unleaded petrol in Clase, Cwmrhydyceirw, Clydach, Morriston, Plasmarl, Plasmarl Industrial Estate, Swansea Enterprise Park, Ynystawe, Ynysforgan today.

PETROL LEADERBOARD Live Data
1
VST LLANTEG SERVICE STATION
LLANTEG SERVICE STATION, LLANTEG, ARBERTH, SA67 8QD, ARBERTH, Wales , SA67 8QD
124.6p
BEST PRICE
2
SHELL
CROSSROADS GARAGE, BEGELI, CILGETI, SA68 0YH, CILGETI, W , SA68 0YH
124.9p
+0.3p
3
Asda
Upper Forest Way, Swansea , SA6 8PS
125.7p
+1.1p
4
TEXACO
Pelcomb, St Davids Road, Keeston, Haverfordwest. , SA62 6ED
126.9p
+2.3p
5
Ocean Haze Service Station
Ocean Haze Service Station (Texaco), Haverford West Road, St Davids,Haverfordwes , SA62 6QN
126.9p
+2.3p
6
Morrisons
MFG Morrisons Haverfordwest, Bridge Meadow Lane, HAVERFORDWEST , SA61 2EX
126.9p
+2.3p
7
Texaco
Haverfordwest Road,St Davids,Haverfordwes   , SA62 6QN
126.9p
+2.3p
8
BP
ST PETERS ROAD , JOHNSTON, HAVERFORDWEST, DYFED, SA62 3PJ , SA62 3PJ
127.9p
+3.3p
9
TESCO
Fenton Trading Estate Portfield Hwlffordd , SA61 1BU
127.9p
+3.3p
10
Texaco
MFG Haverfordwest, Fishguard Road, Haverfordwest , SA62 4BT
129.9p
+5.3p

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 Clase, Cwmrhydyceirw, Clydach, Morriston, Plasmarl, Plasmarl Industrial Estate, Swansea Enterprise Park, Ynystawe, Ynysforgan area.

DIESEL LEADERBOARD Live Data
1
Asda
Upper Forest Way, Swansea , SA6 8PS
135.7p
BEST PRICE
2
TEXACO
Pelcomb, St Davids Road, Keeston, Haverfordwest. , SA62 6ED
136.9p
+1.2p
3
Texaco
Haverfordwest Road,St Davids,Haverfordwes   , SA62 6QN
136.9p
+1.2p
4
Ocean Haze Service Station
Ocean Haze Service Station (Texaco), Haverford West Road, St Davids,Haverfordwes , SA62 6QN
137.9p
+2.2p
5
Morrisons
MFG Morrisons Haverfordwest, Bridge Meadow Lane, HAVERFORDWEST , SA61 2EX
137.9p
+2.2p
6
BP
ST PETERS ROAD , JOHNSTON, HAVERFORDWEST, DYFED, SA62 3PJ , SA62 3PJ
137.9p
+2.2p
7
TESCO
Fenton Trading Estate Portfield Hwlffordd , SA61 1BU
137.9p
+2.2p
8
VST LLANTEG SERVICE STATION
LLANTEG SERVICE STATION, LLANTEG, ARBERTH, SA67 8QD, ARBERTH, Wales , SA67 8QD
138.6p
+2.9p
9
SHELL
CROSSROADS GARAGE, BEGELI, CILGETI, SA68 0YH, CILGETI, W , SA68 0YH
138.9p
+3.2p
10
Texaco
MFG Haverfordwest, Fishguard Road, Haverfordwest , SA62 4BT
139.9p
+4.2p

How to save on fuel in Clase, Cwmrhydyceirw, Clydach, Morriston, Plasmarl, Plasmarl Industrial Estate, Swansea Enterprise Park, Ynystawe, Ynysforgan

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 Clase, Cwmrhydyceirw, Clydach, Morriston, Plasmarl, Plasmarl Industrial Estate, Swansea Enterprise Park, Ynystawe, Ynysforgan.

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

"Clase, Cwmrhydyceirw, Clydach, Morriston, Plasmarl, Plasmarl Industrial Estate, Swansea Enterprise Park, Ynystawe, Ynysforgan benefits from strong market competition with 44 brands operating across 111 stations. Ranking in the top 2% nationally makes this an excellent area for fuel savings, while with a 6.9p price gap between cheapest and average stations, careful selection could save £3.80 per tank."

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

Frequently Asked Questions

As of February 6, 2026, the cheapest station is VST LLANTEG SERVICE STATION at 124.6p per litre.

There is currently a 5.3p difference between the cheapest and most expensive stations in Clase, Cwmrhydyceirw, Clydach, Morriston, Plasmarl, Plasmarl Industrial Estate, Swansea Enterprise Park, Ynystawe, Ynysforgan. For a standard family car, this equals a saving of £2.92 per tank.

Not currently. An independent or oil-company brand (VST LLANTEG SERVICE STATION) 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: 03:09, 06 Feb 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 Clase, Cwmrhydyceirw, Clydach, Morriston, Plasmarl, Plasmarl Industrial Estate, Swansea Enterprise Park, Ynystawe, Ynysforgan was last synchronized at 02:50 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) 0.8p
Was: 129.3p → Now: 128.5p
Diesel (B7) 0.9p
Was: 138.6p → Now: 137.7p

Visualise the Savings

View 20 local stations on our interactive map.

Open Live Map
Popular Brands in Clase, Cwmrhydyceirw, Clydach, Morriston, Plasmarl, Plasmarl Industrial Estate, Swansea Enterprise Park, Ynystawe, Ynysforgan
VST LLANTEG SERVICE STATION SHELL Asda TEXACO Ocean Haze Service Station