Heating oil is mainly used for space heating. Some homes and residential commercial buildings also use heating oil to heat water but in much smaller amounts than what they use for space heating. Because cold weather affects heating demand, most heating oil use occurs during the heating season—October through March.
Annual residential heating oil (distillate fuel) consumption peaked in the 1970s and declined nearly every year since. Most replacement heating systems in exisiting homes and heating systems in new homes use natural gas or electricity.
Who uses heating oil?
In the winter of 2020–2021, about 5.3 million households in the United States used heating oil (distillate fuel oil) as their main space heating fuel, and about 82% of those households were in the U.S. Northeast Census Region.1
In 2020, residential consumers in the Northeast used about 2.6 billion gallons of heating oil, equal to about 85% of total U.S. residential heating oil sales.2
Some commercial and institutional buildings use heating oil directly in space and water heating equipment and in combined heat and power plants. In 2020, the commercial sector consumed about 2 billion gallons of distillate fuel oil, and about 33% of total commercial sector distillate fuel oil consumption was in the Northeast. New York consumed more than any other state at about 14% of the U.S. total commercial sector heating oil use.2
Last updated: February 23, 2022