Heating oil market study
The Competition and Markets Authority (CMA) completed a market study into the retail supply of heating oil for domestic use in the UK.
Administrative timetable
| Date | Action |
|---|---|
| 19 March 2027 | Statutory deadline |
| 15 July 2026 | Final report published |
| 20 March 2026 | Launch of market study |
Final report
15 July 2026: The CMA has published the final report in its market study into the retail supply of heating oil for domestic use in the UK. The report sets out our findings and recommendations for driving better outcomes for consumers who rely on home heating oil.
- Foreword and executive summary (PDF, 327KB) (15.7.26)
- Final report (PDF, 3.6MB) (15.7.26)
- Press release: UK’s heating oil households need stronger protections, says CMA (15.7.26)
Responses to the Statement of Scope
- Action with Communities in Rural England (ACRE) (PDF, 444KB) (29.4.26)
- BoilerJuice (PDF, 275KB) (29.4.26)
- Carrs Billington (PDF, 384KB) (29.4.26)
- Citizens Advice (PDF, 127KB) (29.4.26)
- Citizens Advice Scotland (PDF, 200KB) (29.4.26)
- Consumer Council (PDF, 431KB) (29.4.26)
- Consumer Scotland (PDF, 351KB) (29.4.26)
- Energy Ombudsman (PDF, 339KB) (29.4.26)
- Federation of Small Businesses (PDF, 206KB) (29.4.26)
- Fuel Bank Foundation (PDF, 357KB) (29.4.26)
- Highland Fuels (PDF, 494KB) (29.4.26)
- National Energy Action (PDF, 197KB) (29.4.26)
- Northern Ireland Assembly (PDF, 187KB) (29.4.26)
- NWF Fuels (PDF, 754KB) (29.4.26)
- Oil Market Journal (PDF, 2.3MB) (29.4.26)
- UKIFDA (PDF, 914KB) (29.4.26)
Launch of market study
20 March 2026: The CMA launched a market study into the retail supply of heating oil for domestic use in the UK.
We invite views by 8 April 2026 from all interested parties on the areas covered in the Statement of Scope.
We aim to complete the market study and publish our final report within 3 months of launch.
- Market study notice (PDF, 101KB) (20.3.26)
- Statement of Scope (PDF, 203KB) (20.3.26)
- Roadmap (PDF, 269KB) (20.3.26)
Contact
Privacy notice
The CMA may collect, use and share personal data for its market studies under the Enterprise Act 2002. This includes processing personal data for the purposes of the UK General Data Protection Regulation and the Data Protection Act 2018.
For more information about how the CMA handles personal data, visit the CMA’s personal information charter.