Diesel Prices by State
Compare diesel fuel prices across all 50 US states
Updated weekly from official EIA data • Last update: 7/30/2026
US Gulf Coast Wholesale Reference
$4.20
per gallon (wholesale) • Retail at the pump typically $0.80–$1.50 higher — see your state below
Estimated US Retail Average
~$5.19/gal
Estimate: wholesale + typical $0.99 taxes & retail margin
Diesel Fuel Prices Chart and Map Workflows
Use this hub for diesel prices by state, then continue into the widget, fuel surcharge calculator, or API depending on how you need to present the data. The coverage here is state and regional average diesel pricing, not station-level pump quotes.
Diesel price widget
Embed a diesel fuel prices chart-style widget for state and regional average workflows.
Fuel surcharge calculator
Convert diesel price movement into surcharge logic for freight and logistics teams.
Diesel price API
Integrate weekly diesel averages into internal maps, charts, and reporting pipelines.
Compare gasoline prices
Link diesel and gasoline state-average workflows for fuel cost comparison pages.
Carrier fuel surcharges
See the fuel surcharge percentage each major LTL carrier publishes off this same DOE diesel index.
Diesel Prices by State
Alabama
ALState Tax: $0.270/gal
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Alaska
AKState Tax: $0.089/gal
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Arizona
AZState Tax: $0.270/gal
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Arkansas
ARState Tax: $0.245/gal
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California
CAState Tax: $0.538/gal
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Colorado
COState Tax: $0.205/gal
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Connecticut
CTState Tax: $0.495/gal
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Delaware
DEState Tax: $0.220/gal
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Florida
FLState Tax: $0.352/gal
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Georgia
GAState Tax: $0.329/gal
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Hawaii
HIState Tax: $0.160/gal
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Idaho
IDState Tax: $0.320/gal
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Illinois
ILState Tax: $0.543/gal
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Indiana
INState Tax: $0.540/gal
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Iowa
IAState Tax: $0.330/gal
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Kansas
KSState Tax: $0.270/gal
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Kentucky
KYState Tax: $0.244/gal
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Louisiana
LAState Tax: $0.200/gal
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Maine
MEState Tax: $0.319/gal
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Maryland
MDState Tax: $0.366/gal
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Massachusetts
MAState Tax: $0.240/gal
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Michigan
MIState Tax: $0.254/gal
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Minnesota
MNState Tax: $0.286/gal
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Mississippi
MSState Tax: $0.180/gal
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Missouri
MOState Tax: $0.170/gal
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Montana
MTState Tax: $0.308/gal
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Nebraska
NEState Tax: $0.293/gal
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Nevada
NVState Tax: $0.270/gal
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New Hampshire
NHState Tax: $0.222/gal
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New Jersey
NJState Tax: $0.178/gal
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New Mexico
NMState Tax: $0.210/gal
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New York
NYState Tax: $0.442/gal
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North Carolina
NCState Tax: $0.362/gal
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North Dakota
NDState Tax: $0.230/gal
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Ohio
OHState Tax: $0.470/gal
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Oklahoma
OKState Tax: $0.200/gal
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Oregon
ORState Tax: $0.360/gal
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Pennsylvania
PAState Tax: $0.741/gal
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Rhode Island
RIState Tax: $0.340/gal
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South Carolina
SCState Tax: $0.270/gal
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South Dakota
SDState Tax: $0.300/gal
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Tennessee
TNState Tax: $0.270/gal
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Texas
TXState Tax: $0.200/gal
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Utah
UTState Tax: $0.315/gal
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Vermont
VTState Tax: $0.300/gal
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Virginia
VAState Tax: $0.265/gal
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Washington
WAState Tax: $0.494/gal
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West Virginia
WVState Tax: $0.355/gal
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Wisconsin
WIState Tax: $0.329/gal
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Wyoming
WYState Tax: $0.240/gal
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Who Uses Diesel Price Data?
Fleet Managers
Track diesel costs across your fleet's routes and optimize refueling strategies.
View fleet tools →Fuel surcharge calculator →Analysts
Export diesel price data to Excel or Google Sheets for analysis and forecasting.
View integrations →Frequently Asked Questions
What state has the lowest diesel tax?
As of December 2025, Alaska has the lowest state diesel tax at $0.089/gallon. However, actual retail diesel prices vary by location, market conditions, and federal taxes ($0.244/gal). Use our state pages to see current average prices for each state.
What state has the highest diesel tax?
Pennsylvania has the highest state diesel tax at $0.741/gallon. Combined with federal taxes and stricter fuel regulations requiring cleaner-burning formulas, this contributes to higher pump prices in Pennsylvania.
How often are diesel prices updated?
State averages update weekly every Monday from EIA (Energy Information Administration) data. Use the API response metadata (timestamps/source) to decide whether a value is suitable for automation or reporting.
Can I build a diesel fuel prices chart or map?
Yes, for state and regional average workflows. Use the diesel price widget for an embeddable chart-style view, or the Diesel Price API if you want to render your own map, chart, or internal reporting dashboard. OilPriceAPI does not provide station-level diesel prices.
Can I get diesel prices via API?
Yes. Our Diesel Price API can provide:
- State averages (FREE tier, unlimited queries)
- Station-level prices (availability varies by plan and source)
- Historical data and trend analysis
Need Diesel Prices in Your App?
Get diesel price data via API. Free for state averages; paid plans support station-level access where available.