Clay IndicesUS Energy Index
Clay Indices · US household energy reference

What energy costs an American household, as one number

The US Energy Index blends the four prices a household actually pays for energy — gasoline at the pump, electricity at the meter, piped gas and heating oil — into a single monthly figure, weighted by what households actually spend on each. Rules-based, computed from public BLS price data, base 2000 = 100. The figure, the weights, the source, the month. You draw the conclusion.

May 2026
268.6
2000 average = 100
Month over month
+5.3%
not seasonally adjusted
Year over year
+25.4%
vs May 2025
Ten years
+82.9%
five years: +50.4%
US Energy Index, 1978–2026 · monthly · 2000 average = 100
5010015020025019801990200020102020 269 US Energy Index (2000 average = 100)

571 months · sources: US Bureau of Labor Statistics, Average Price Data (US city average) (prices), US Bureau of Labor Statistics, Consumer Expenditure Surveys, 2024 (weights) · ↓ full history (CSV) · methodology v1.0

Cite this figure
US Energy Index, 268.6 (May 2026, 2000=100). Clay Indices, usenergyindex.com.
The four components
Component prices, May 2026 · US city average · not seasonally adjusted
ComponentPriceMoMYoYWeightSourceMonth
Gasoline $4.651 $/gal +9.1% +40.7% 49.6% US Bureau of Labor Statistics May 2026
Electricity $0.196 $/kWh +1.0% +7.7% 37.7% US Bureau of Labor Statistics May 2026
Natural gas $1.677 $/therm +0.1% +3.1% 10.1% US Bureau of Labor Statistics May 2026
Heating oil $5.293 $/gal +0.0% +54.2% 2.6% US Bureau of Labor Statistics May 2026

Weights are the 2024 Consumer Expenditure Survey annual dollars per household, normalized. The weight is what makes the blend honest: gasoline moves the index almost twice as hard as electricity because households spend almost twice as much on it.

Component · 49.6% of the index

Gasoline

$4.651 $/gal in May 2026, +40.7% on the year. Average retail price of one gallon of unleaded regular gasoline, US city average, including taxes.

Component · 37.7% of the index

Electricity

$0.196 $/kWh in May 2026, +7.7% on the year. Average residential price of one kilowatt-hour of electricity, US city average, including taxes and fuel adjustments.

Component · 10.1% of the index

Natural gas

$1.677 $/therm in May 2026, +3.1% on the year. Average residential price of one therm of utility (piped) natural gas, US city average, including taxes.

Component · 2.6% of the index

Heating oil

$5.293 $/gal in May 2026, +54.2% on the year. Average residential price of one gallon of No.

Where you live changes the bill
Reference · 50 states + DC

Energy prices in every state

A page per state: the latest prices by category and the price of each fuel per million Btu since 1980, from the EIA's State Energy Data System.

Ranking · 50 states + DC

Residential electricity price by state

What a kilowatt-hour costs at home in every state, April 2026 against April 2025, from the EIA's monthly utility census. The national average hides a three-to-one spread.

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