OPIS defines “price differential” as how a brand’s typical store on a typical day is priced relative to its direct competition; it is measured in cents per gallon (CPG). Many of the top low-price brands among the Fuels 50 belong to warehouse clubs, which offer highly discounted prices to boost memberships. Also in the mix: old-school discounter Arco, and the Murphy USA and Murphy Express brands of former Wal-Mart partner Murphy USA.
| Rank | Brand | Station count | Price differential |
|---|---|---|---|
| 1. | Costco | 428 | (20.88) |
| 2. | Arco | 1,250 | (19.85) |
| 3. | Sam's Club | 538 | (11.47) |
| 4. | BJ's | 128 | (10.91) |
| 5. | Buc-ee's | 31 | (10.20) |
| 6. | Murphy USA | 1,105 | (6.25) |
| 7. | Murphy Express | 237 | (5.91) |
| 8. | QuickChek | 55 | (5.53) |
| 9. | Flying J | 133 | (5.18) |
| 10. | RaceWay | 276 | (5.03) |
Source: OPIS; Ranking includes fuel brands with a minimum of 0.2% market share.
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