Methodology

This article draws on YouGov BrandIndex data collected among UK adults from 1 August 2025 to 31 July 2026, with year-on-year comparisons made against 1 August 2024 to 31 July 2025.

The analysis focuses on UK adults who visit petrol stations one or more times a month. For the 2025-26 period, the national analysis is based on n>8,390 UK adults who visit petrol stations one or more times a month. Year-on-year comparisons use the same audience in the 2024-25 comparison period, with n>7,550.

Rankings are based on the following petrol stations that are tracked in BrandIndex: Tesco Petrol, Sainsbury’s Petrol, Asda Petrol, Morrison’s Petrol, BP, Shell, Esso, Texaco, Jet, Gulf, ExxonMobil, TotalEnergies, and Murco. Figures are rounded to one decimal place.

Consideration is the percentage of respondents who selected the individual brands in response to this question: “When you are in the market next to purchase from an auto and gasoline brand, from which of the following would you consider purchasing?”

Value and Quality are reported as net scores. The Value question is: “Which of the following auto and gasoline brands do you think represents good or poor value for money?” The Quality question is: “Which of the following auto and gasoline brands do you think represents good or poor quality?” Net scores show positive responses minus negative responses.

Regions in this analysis are: East of England, London, Midlands, North of England, Scotland, South of England, and Wales. Regional sample sizes for UK adults who visit petrol stations one or more times a month are: East n>740; London n>750; Midlands n>1,270; North n>1,810; Scotland n>650; South n>1,800; and Wales n>390.

Disclosure: The data analysis in this article was conducted by YouGov with the assistance of AI tools.