Illinois crude oil production totaled 7,184,282 barrels in 2023, according to data compiled by the Illinois Petroleum Resources Board (IPRB) that is based on first-purchaser reports. Click here to download IPRB’s annual Illinois oil production report.

The state’s 2023 production 0.59 percent below 2022 production levels (7,227,172 barrels).

Several counties did see significant increases in production compared to 2022 levels, led by Wabash County’s 44,644-barrel increase in production to 443,199 barrels in 2023. That made Wabash County Illinois’ fourth-largest oil producing county despite being one of the smallest counties geographically in the state.

Hamilton County saw a similar year-over-year production increase in 2023, with production jumping 43,349 barrels to 277,452 barrels – making it Illinois’ No. 9 producing county.

Franklin County saw a third straight year of increased production, as its production jumped three percent compared to 2022 levels to a total of 369,567 barrels last year. Franklin County enjoyed a 15 percent production increase from 2021 levels in 2022 and has increased production nearly 42 percent from 2020 levels over the past three years, catapulting it to become the state’s sixth most prolific producing county.

Minor producing counties Sangamon (+20,618 barrels), Madison (+14,527), Dewitt (+9,865), Randolph (+2,6981), Coles (+2,090) and Brown (+1,849) all saw significantly increased production last year, while traditional top-15 producing counties Gallatin (+13,625), Jasper (+5,290), Wayne (+968) and Clay (+692) enjoyed upticks in production compared to 2022.

White County once again led the state in production by a wide margin (1,940,173 barrels), although its production decreased by 98,623 barrels compared to 2022.

The state’s top-15 producing counties – White, Marion, Crawford, Fayette, Lawrence, Wabash, Franklin, Clay, Wayne, Clark, Richland, Hamilton, Jasper, Jefferson and Gallatin – collectively produced 90 percent of the state’s oil in 2023. All 15 of those counties – as well as Edwards, Brown and Effingham counties – have passed Resolutions of Support for the Illinois oil production industry.

Illinois has totaled more than 3.75 billion barrels of oil production since commercial production began in 1905.