Heating oil in Carmarthenshire today
Local figures are the prices suppliers quoted for PriceTank reference postcodes in Carmarthenshire, not a guaranteed price for every address. The UK benchmark is the PriceTank Benchmark. How our prices work →
Suppliers delivering in Carmarthenshire
11 regional and independent suppliers cover Carmarthenshire postcodes. Where we know it, each one shows how you get a price, where they are based and how long they have been going. National suppliers are listed underneath.
12 national suppliers deliver in Carmarthenshire
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From quote searches on PriceTank since August 2026.
The Carmarthenshire heating oil market
Carmarthenshire has a substantial oil heating market across its rural areas. The Towy Valley, the Gwendraeth and Aman valleys, the Preseli foothills, and the agricultural uplands of the county all have high concentrations of off-grid properties. Llanelli and the coastal towns have more gas infrastructure but the rural interior is predominantly oil-heated. Several suppliers serving West Wales cover the county, and prices are broadly in line with the Welsh average.
11 regional and independent suppliers deliver here as well as 12 national ones, and prices between them can vary by several pence a litre on the same day. It is worth getting more than one price before you order.
Help with costs in Carmarthenshire
Every UK nation now has a payment for oil heated homes. See what you can claim →
Postcode areas covered
This page covers the SA, CF postcode areas. Suppliers may also cover neighbouring areas. Always confirm delivery to your postcode when asking for a quote.