What we check
Tankful builds county-level heating oil comparisons from supplier-published prices, online quote and ordering pages, direct supplier information where available, and internal review checks.
- Supplier-published prices from publicly visible price or quote information.
- Common order sizes such as 300L, 500L, and 1000L.
- County details so a national price is not treated the same as a local delivery quote.
- Supplier details where we can show who the price relates to and when it was checked.
We do not publish supplier-specific collection details, run schedules, or internal review rules. We still show enough context for households to judge how recent and useful a price is.