fuel oil
noun
: an oil that is used for fuel and that usually has a higher flash point than kerosene
Examples of fuel oil in a Sentence
Recent Examples on the Web
That’s because the US produces a particular kind of crude that is good for making gasoline, but lousy for other petroleum products like diesel, kerosene and other fuel oils.
—
Chris Isidore, CNN Money, 4 Mar. 2026
The fires ignited two trailers containing thousands of pounds of ammonium nitrate and fuel oil, causing two explosions.
—Kendrick Calfee, Kansas City Star, 1 Mar. 2026
The maritime sector continues to evaluate various fuels to meet environmental targets, as hydrogen, ammonia, and methanol remain the primary candidates to replace traditional heavy fuel oils.
—Aman Tripathi, Interesting Engineering, 27 Feb. 2026
In 2025, for example, there were six spills that released a total of nearly 30,000 barrels of crude and fuel oil into the environment.
—New Atlas, 24 Feb. 2026
See All Example Sentences for fuel oil
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Chris Isidore, CNN Money, 4 Mar. 2026
The fires ignited two trailers containing thousands of pounds of ammonium nitrate and fuel oil, causing two explosions.
—Kendrick Calfee, Kansas City Star, 1 Mar. 2026
The maritime sector continues to evaluate various fuels to meet environmental targets, as hydrogen, ammonia, and methanol remain the primary candidates to replace traditional heavy fuel oils.
—Aman Tripathi, Interesting Engineering, 27 Feb. 2026
In 2025, for example, there were six spills that released a total of nearly 30,000 barrels of crude and fuel oil into the environment.
—New Atlas, 24 Feb. 2026
See All Example Sentences for fuel oil
Cite this Entry
“Fuel oil.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fuel%20oil. Accessed 13 Mar. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
