Visibility index · Spain
Gas stations
19 AI answers to 5 prompts name 15 brands. Repsol leads with 11.4% of mentions; the top 3 hold 31.6%.
Level 3n = 19 answers5 promptsupdated Oct 25, 2026AI Mode5ChatGPT5AI Overviews4Gemini5
AI answers
19
5 prompts
Last run Oct 25, 2026
Brands seen
15
Top 3 hold 31.6%
n = 19 answers
Concentration
Fragmented
HHI 813 · leader 11.4%
Leader
Repsol
11.4% of mentions
Top engine
AI Mode
26.3% of answers
4 engines sampled
Sources cited
81
Top: ocu.org 28.4%
n = 19 answers
What AI answers show
Brands and sources in the sampled answers
n = 19 answers5 promptsOct 25, 2026
Brands AI recommends
Share of brand mentions in Gas stations answers
- 1Repsolavg. #6.711.4%18
- 2Ballenoilavg. #6.110.1%16
- 3BonÀreaavg. #4.310.1%16
- 4Alcampoavg. #6.39.5%15
- 5BPavg. #7.78.9%14
n = 19 answers15 brands seen in total
Market concentrationFragmented
FragmentedModerateConcentrated
HHI 813Leader 11.4%Top 3 31.6%
Fragmented: no brand dominates. The top 3 hold 31.6% of mentions; the leader 11.4%.
Answers behind the ranking
Every engine sampled
- Google AI Mode5
- ChatGPT5
- AI Overviews4
- Gemini5