The 10/12/26 fuel price data shows U.S. on-highway diesel averaging $6.179 per gallon, about $1.85 above the $4.331 national average for regular gasoline. Regional diesel prices range from $5.645 in the Lower Atlantic to $8.091 in California. The data release does not include prior-period figures, so no week-over-week change is reported.
Key Points
- National average: on-highway diesel is $6.179 per gallon, compared with $4.331 for regular gasoline, a gap of $1.848.
- West Coast is the most expensive region at $7.240 per gallon. California alone is $8.091, while the West Coast excluding California averages $6.503.
- The lowest regional diesel prices are in the Lower Atlantic ($5.645) and Gulf Coast ($5.809). East Coast overall averages $5.908.
- Northeast and Midwest prices sit above the national average: Central Atlantic $6.471, New England $6.441, Midwest $6.259. Rocky Mountain is $6.302.
- Gasoline prices follow a similar pattern: California is at $6.104 and Texas at $3.779. Among cities, San Francisco ($6.154) and Los Angeles ($6.082) are highest, and Houston ($3.762) is lowest.
Why It Matters
Diesel prices differ by $2.446 per gallon between the Lower Atlantic ($5.645) and California ($8.091), so fuel costs vary widely by region.