7-Eleven Gas Prices in August 2026: Down 0.48% Nationwide as Speedway Breaks Away
A comprehensive investigation of 3,675 7-Eleven, Speedway, and Stripes fuel forecourts across 30 states. Behind a modest 2-cent monthly drop lay a significant divergence between Speedway and 7-Eleven banners, a 37-cent crash in Indiana, and diesel testing record highs.
Aug 31 Regular Avg
$4.143
-$0.020 (-0.48%) vs Aug 1
Speedway Drop
-12.7¢
Averaged $4.043 on Aug 31
Diesel Month Change
+$0.172
+3.13% (Climbed to $5.659)
Indiana Price Plunge
-37.2¢
-9.91% (Closed at $3.382)
Across the 3,675 fuel stations comprising the 7-Eleven family (7-Eleven, Speedway, and Stripes), August 2026 appeared placid on the surface. The national average regular unleaded price dropped by just 2.0 cents (-0.48%), opening at $4.163 on August 1 and closing at $4.143 on August 31.
However, this minor headline decline hides intense volatility: a significant performance split between store banners where Speedway dropped 12.7 cents while 7-Eleven rose 0.4 cents, a sharp 17.2-cent diesel increase that pushed California over $7.18/gal, an acute 37.2-cent collapse in Indiana, and individual station price swings of up to 88 cents per gallon.
1. Fuel Grades: August 1 vs. August 31 Performance
| Fuel Grade | Aug 1 | Aug 31 | Change ($) | Change (%) | Aug Avg | Aug High | Aug Low |
|---|---|---|---|---|---|---|---|
| Regular Unleaded | $4.163 | $4.143 | -$0.020 | -0.48% | $4.170 | $4.223 (8/27) | $4.100 (8/10) |
| Midgrade | $4.610 | $4.573 | -$0.037 | -0.80% | $4.602 | $4.653 (8/27) | $4.531 (8/10) |
| Premium | $4.970 | $4.920 | -$0.050 | -1.01% | $4.950 | $5.000 (8/27) | $4.877 (8/10) |
| Diesel | $5.487 | $5.659 | +$0.172 | +3.13% | $5.578 | $5.723 (8/21) | $5.401 (8/10) |
2. Banner Divergence: Speedway Dropped While 7-Eleven Held Firm
Speedway Forecourts
$4.043 Aug 31 avg
-$0.127 (-3.05%) month change
August Monthly Average: $4.100 • Diesel Aug 31: $5.626
7-Eleven Forecourts
$4.165 Aug 31 avg
+$0.004 (+0.10%) month change
August Monthly Average: $4.185 • Diesel Aug 31: $5.669
Speedway's 12.7-cent drop reflects its heavy geographic footprint in Great Lakes states like Ohio and Indiana, where pump price wars intensified, while 7-Eleven's footprint carries high concentrations in Florida, California, and Virginia.
3. Intra-Month Swings & Day-of-Week Trends
Across all 3,675 locations, prices bottomed at $4.100 on August 10 before surging to a late-month peak of $4.223 on August 27.
Cheapest Day of the Week to Fill Up at 7-Eleven & Speedway
Motorists who filled up on Monday saved an average of 8.1 cents per gallon compared to filling up on Thursday.
4. State-by-State Winners & Losers
| 1. Indiana (52 stations) | -37.2¢ (-9.91%) |
| 2. Maryland (95 stations) | -29.7¢ (-7.19%) |
| 3. Ohio (61 stations) | -29.0¢ (-6.92%) |
| 4. Wisconsin (9 stations) | -28.8¢ (-7.24%) |
| 5. Delaware (4 stations) | -27.8¢ (-6.62%) |
| 6. Michigan (98 stations) | -27.7¢ (-6.28%) |
| 1. Idaho (3 stations) | +24.0¢ (+5.77%) |
| 2. Washington (82 stations) | +16.4¢ (+3.22%) |
| 3. Texas (459 stations) | +15.9¢ (+4.56%) |
| 4. Oregon (14 stations) | +9.0¢ (+1.90%) |
| 5. Utah (98 stations) | +7.7¢ (+1.83%) |
| 6. West Virginia (7 stations) | +4.3¢ (+1.11%) |
Cheapest States on August 31Regular avg
- 1. Indiana$3.382
- 2. New Mexico$3.591
- 3. Texas (459 stations)$3.649
- 4. Wisconsin$3.689
- 5. North Carolina$3.713
Most Expensive States on August 31Regular avg
- 1. California (399 stations)$5.561
- 2. Washington (82 stations)$5.259
- 3. Oregon$4.825
- 4. Nevada (105 stations)$4.787
- 5. Arizona$4.423
5. City & Station Highlights: The $2.85 Spread
Cheapest Stations on August 31
- Speedway — Griffith, IN (#43811)$3.149
- 7-Eleven — Griffith, IN (#30167)$3.159
- Speedway — Schererville, IN (#43829)$3.189
- 7-Eleven — Austin, TX (#41632)$3.199
- Speedway — South Bend, IN (#43805)$3.249
Priciest Stations on August 31
- 7-Eleven — Clovis, CA (#38756)$5.999
- 7-Eleven — Dublin, CA (#33163)$5.999
- 7-Eleven — Encinitas, CA (#13627)$5.999
- 7-Eleven — Riverside, CA (#37140)$5.999
- 7-Eleven — Temecula, CA (#43209)$5.999
6. Diesel Squeeze: California Crosses $7.18
Diesel climbed 17.2 cents (+3.13%) across the network to average $5.659. In California, diesel surged past $7.185 per gallon, while Washington ($6.342) and Pennsylvania ($5.971) also absorbed intense distillate inflation.
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