Connecticut households that heat with oil are facing sharply higher costs as winter approaches.
The statewide average price was $5.91 a gallon on Sept. 21, compared with $3.18 during the same week last year, according to the Connecticut Department of Energy and Environmental Protection. That is an increase of about 86%.
At those averages, a 200-gallon delivery would cost about $1,182, compared with $636 a year ago — roughly $548 more.
The amount a household pays depends on its supplier, delivery size and payment terms.
Prices advertised by Litchfield County suppliers over the weekend were somewhat lower than the state survey average.
HomeHeat, a service that tracks advertised cash-on-delivery prices, listed an average of $5.69 a gallon among 17 county suppliers on Sept. 27.
Its listed prices ranged from $5.30 to $6 a gallon
The rise in heating oil prices comes alongside a surge in diesel prices stemming from the conflict with Iran.
The two fuels are closely related and face many of the same pressures on supply and price.
Connecticut’s average diesel price reached a record high last week, according to AAA figures. The price was $6.49 a gallon.
Heating oil was high at the outbreak of the Ukraine war in 2022. DEEP recorded a statewide average of $6.37 a gallon in May 2022.
For low income residents, applications are now open for the 2026-27 Connecticut Energy Assistance Program, which helps eligible residents pay their home heating costs Details are at CT.gov.
