Illinois Crude Oil Production: Monthly and Annual EIA Data

2025 average

18 Mbbl/d

−5.3% vs 2024

Rank among 32 states, 2025

16th

0.1% of U.S. production

July 2026

16 Mbbl/d

18 a year earlier

Record year (data from 1981)

83 Mbbl/d

1985

At 18 thousand barrels per day (Mbbl/d) in 2025, Illinois's crude oil production was 78% below its 1985 level of 83, the highest in EIA's state data since 1981. It ranks 16th among the 32 states EIA reports, with 0.1% of U.S. field production. Output was 5.3% below the 19 of 2024.

Illinois monthly crude oil production since January 1981

Chart data table (547 rows)

Illinois field production of crude oil, monthly (Mbbl/d)
Period	Mbbl/d
July 2026	16
June 2026	18
May 2026	17
April 2026	18
March 2026	18
February 2026	17
January 2026	17
December 2025	18
November 2025	18
October 2025	18
September 2025	18
August 2025	18
July 2025	18
June 2025	18
May 2025	19
April 2025	18
March 2025	19
February 2025	17
January 2025	16
December 2024	20
November 2024	19
October 2024	20
September 2024	18
August 2024	19
July 2024	19
June 2024	19
May 2024	20
April 2024	19
March 2024	19
February 2024	20
January 2024	17
December 2023	19
November 2023	19
October 2023	19
September 2023	19
August 2023	19
July 2023	18
June 2023	19
May 2023	19
April 2023	18
March 2023	19
February 2023	20
January 2023	19
December 2022	18
November 2022	19
October 2022	19
September 2022	19
August 2022	19
July 2022	18
June 2022	20
May 2022	19
April 2022	19
March 2022	20
February 2022	18
January 2022	18
December 2021	19
November 2021	20
October 2021	19
September 2021	20
August 2021	20
July 2021	19
June 2021	20
May 2021	19
April 2021	20
March 2021	21
February 2021	16
January 2021	19
December 2020	20
November 2020	19
October 2020	20
September 2020	20
August 2020	20
July 2020	21
June 2020	21
May 2020	11
April 2020	15
March 2020	21
February 2020	22
January 2020	24
December 2019	24
November 2019	23
October 2019	23
September 2019	23
August 2019	23
July 2019	23
June 2019	20
May 2019	23
April 2019	23
March 2019	23
February 2019	21
January 2019	22
December 2018	23
November 2018	24
October 2018	24
September 2018	23
August 2018	25
July 2018	24
June 2018	23
May 2018	24
April 2018	22
March 2018	23
February 2018	22
January 2018	19
December 2017	23
November 2017	23
October 2017	22
September 2017	23
August 2017	23
July 2017	22
June 2017	23
May 2017	22
April 2017	23
March 2017	23
February 2017	24
January 2017	22
December 2016	23
November 2016	23
October 2016	23
September 2016	24
August 2016	24
July 2016	22
June 2016	25
May 2016	23
April 2016	24
March 2016	25
February 2016	24
January 2016	22
December 2015	27
November 2015	25
October 2015	27
September 2015	27
August 2015	26
July 2015	26
June 2015	26
May 2015	26
April 2015	28
March 2015	24
February 2015	24
January 2015	26
December 2014	28
November 2014	26
October 2014	28
September 2014	27
August 2014	27
July 2014	27
June 2014	26
May 2014	26
April 2014	27
March 2014	25
February 2014	23
January 2014	23
December 2013	26
November 2013	26
October 2013	26
September 2013	26
August 2013	27
July 2013	27
June 2013	25
May 2013	26
April 2013	26
March 2013	26
February 2013	26
January 2013	26
December 2012	25
November 2012	27
October 2012	27
September 2012	26
August 2012	27
July 2012	27
June 2012	27
May 2012	27
April 2012	27
March 2012	27
February 2012	27
January 2012	26
December 2011	26
November 2011	27
October 2011	27
September 2011	26
August 2011	26
July 2011	25
June 2011	25
May 2011	23
April 2011	24
March 2011	26
February 2011	22
January 2011	23
December 2010	24
November 2010	24
October 2010	25
September 2010	25
August 2010	24
July 2010	25
June 2010	26
May 2010	24
April 2010	27
March 2010	26
February 2010	26
January 2010	22
December 2009	25
November 2009	24
October 2009	25
September 2009	26
August 2009	25
July 2009	25
June 2009	25
May 2009	25
April 2009	25
March 2009	27
February 2009	25
January 2009	23
December 2008	25
November 2008	25
October 2008	26
September 2008	27
August 2008	26
July 2008	27
June 2008	26
May 2008	25
April 2008	27
March 2008	26
February 2008	24
January 2008	26
December 2007	25
November 2007	26
October 2007	27
September 2007	27
August 2007	27
July 2007	27
June 2007	26
May 2007	27
April 2007	26
March 2007	28
February 2007	24
January 2007	26
December 2006	28
November 2006	28
October 2006	28
September 2006	28
August 2006	29
July 2006	28
June 2006	29
May 2006	29
April 2006	29
March 2006	29
February 2006	28
January 2006	28
December 2005	28
November 2005	27
October 2005	27
September 2005	28
August 2005	28
July 2005	28
June 2005	29
May 2005	28
April 2005	29
March 2005	30
February 2005	28
January 2005	26
December 2004	30
November 2004	31
October 2004	30
September 2004	31
August 2004	30
July 2004	30
June 2004	30
May 2004	30
April 2004	31
March 2004	31
February 2004	29
January 2004	28
December 2003	33
November 2003	30
October 2003	32
September 2003	31
August 2003	32
July 2003	33
June 2003	32
May 2003	32
April 2003	33
March 2003	33
February 2003	31
January 2003	32
December 2002	30
November 2002	34
October 2002	32
September 2002	30
August 2002	31
July 2002	34
June 2002	32
May 2002	30
April 2002	29
March 2002	26
February 2002	28
January 2002	28
December 2001	27
November 2001	27
October 2001	28
September 2001	26
August 2001	28
July 2001	27
June 2001	27
May 2001	29
April 2001	28
March 2001	28
February 2001	28
January 2001	27
December 2000	33
November 2000	33
October 2000	33
September 2000	33
August 2000	33
July 2000	34
June 2000	35
May 2000	33
April 2000	34
March 2000	33
February 2000	35
January 2000	32
December 1999	31
November 1999	34
October 1999	30
September 1999	33
August 1999	33
July 1999	32
June 1999	33
May 1999	32
April 1999	35
March 1999	33
February 1999	37
January 1999	32
December 1998	36
November 1998	37
October 1998	36
September 1998	37
August 1998	36
July 1998	37
June 1998	37
May 1998	37
April 1998	39
March 1998	38
February 1998	40
January 1998	42
December 1997	43
November 1997	46
October 1997	45
September 1997	47
August 1997	46
July 1997	45
June 1997	44
May 1997	43
April 1997	43
March 1997	45
February 1997	43
January 1997	40
December 1996	40
November 1996	43
October 1996	44
September 1996	46
August 1996	45
July 1996	42
June 1996	43
May 1996	42
April 1996	42
March 1996	44
February 1996	38
January 1996	40
December 1995	41
November 1995	44
October 1995	44
September 1995	45
August 1995	45
July 1995	44
June 1995	45
May 1995	44
April 1995	45
March 1995	47
February 1995	44
January 1995	45
December 1994	46
November 1994	46
October 1994	45
September 1994	47
August 1994	47
July 1994	46
June 1994	48
May 1994	48
April 1994	49
March 1994	52
February 1994	48
January 1994	41
December 1993	45
November 1993	49
October 1993	45
September 1993	50
August 1993	49
July 1993	47
June 1993	47
May 1993	47
April 1993	49
March 1993	50
February 1993	46
January 1993	48
December 1992	53
November 1992	54
October 1992	52
September 1992	54
August 1992	52
July 1992	53
June 1992	54
May 1992	51
April 1992	53
March 1992	52
February 1992	53
January 1992	52
December 1991	51
November 1991	50
October 1991	54
September 1991	53
August 1991	54
July 1991	56
June 1991	52
May 1991	55
April 1991	46
March 1991	54
February 1991	51
January 1991	50
December 1990	47
November 1990	56
October 1990	55
September 1990	54
August 1990	57
July 1990	57
June 1990	52
May 1990	53
April 1990	53
March 1990	56
February 1990	56
January 1990	60
December 1989	47
November 1989	57
October 1989	57
September 1989	57
August 1989	57
July 1989	56
June 1989	57
May 1989	57
April 1989	55
March 1989	57
February 1989	54
January 1989	60
December 1988	58
November 1988	59
October 1988	58
September 1988	62
August 1988	64
July 1988	59
June 1988	66
May 1988	62
April 1988	63
March 1988	65
February 1988	63
January 1988	59
December 1987	68
November 1987	63
October 1987	65
September 1987	66
August 1987	65
July 1987	66
June 1987	67
May 1987	64
April 1987	66
March 1987	67
February 1987	68
January 1987	65
December 1986	68
November 1986	63
October 1986	70
September 1986	72
August 1986	65
July 1986	72
June 1986	73
May 1986	73
April 1986	79
March 1986	81
February 1986	95
January 1986	86
December 1985	82
November 1985	86
October 1985	88
September 1985	85
August 1985	86
July 1985	87
June 1985	82
May 1985	84
April 1985	87
March 1985	82
February 1985	74
January 1985	74
December 1984	82
November 1984	83
October 1984	85
September 1984	80
August 1984	82
July 1984	80
June 1984	78
May 1984	77
April 1984	78
March 1984	77
February 1984	70
January 1984	75
December 1983	68
November 1983	82
October 1983	79
September 1983	82
August 1983	82
July 1983	80
June 1983	82
May 1983	79
April 1983	78
March 1983	83
February 1983	83
January 1983	83
December 1982	78
November 1982	82
October 1982	82
September 1982	84
August 1982	82
July 1982	80
June 1982	79
May 1982	72
April 1982	75
March 1982	76
February 1982	60
January 1982	60
December 1981	68
November 1981	68
October 1981	66
September 1981	66
August 1981	67
July 1981	65
June 1981	64
May 1981	68
April 1981	68
March 1981	63
February 1981	63
January 1981	65

By decade, production averaged most in the 1980s (71 Mbbl/d); the 2020s so far average 19. The highest single month was February 1986 at 95 Mbbl/d.

The latest monthly figure is 16 Mbbl/d for July 2026, compared with 18 a year earlier; the 12 months to then averaged 18. Mississippi ranks just above with 28 Mbbl/d and Pennsylvania just below with 12.

Annual production, 1981–2025

Annual average, Mbbl/d; share of U.S. field production
Year	Mbbl/d	vs prior year	Share of U.S.
2025	18	−5.3%	0.1%
2024	19	0.0%	0.1%
2023	19	0.0%	0.1%
2022	19	0.0%	0.2%
2021	19	−5.0%	0.2%
2020	20	−13.0%	0.2%
2019	23	0.0%	0.2%
2018	23	0.0%	0.2%
2017	23	−4.2%	0.2%
2016	24	−7.7%	0.3%
2015	26	0.0%	0.3%
2014	26	0.0%	0.3%
2013	26	−3.7%	0.3%
2012	27	+8.0%	0.4%
2011	25	0.0%	0.4%
2010	25	0.0%	0.5%
2009	25	−3.8%	0.5%
2008	26	0.0%	0.5%
2007	26	−7.1%	0.5%
2006	28	0.0%	0.6%
2005	28	−6.7%	0.5%
2004	30	−6.3%	0.6%
2003	32	+6.7%	0.6%
2002	30	+7.1%	0.5%
2001	28	−15.2%	0.5%
2000	33	0.0%	0.6%
1999	33	−13.2%	0.6%
1998	38	−13.6%	0.6%
1997	44	+2.3%	0.7%
1996	43	−2.3%	0.7%
1995	44	−6.4%	0.7%
1994	47	−2.1%	0.7%
1993	48	−9.4%	0.7%
1992	53	+1.9%	0.7%
1991	52	−5.5%	0.7%
1990	55	−1.8%	0.7%
1989	56	−8.2%	0.7%
1988	61	−7.6%	0.7%
1987	66	−12.0%	0.8%
1986	75	−9.6%	0.9%
1985	83	+5.1%	0.9%
1984	79	−1.3%	0.9%
1983	80	+5.3%	0.9%
1982	76	+15.2%	0.9%
1981	66	—	0.8%

Source and methodology

Provider	Series	Units	Coverage	Latest observation
U.S. Energy Information Administration	Field production of crude oil, Illinois (petroleum/crd/crpdn)	Mbbl/d (thousand barrels per day)	annual 1981–2025; monthly January 1981 – July 2026	July 2026

State totals exclude federal offshore production, which EIA reports separately. Monthly figures are revised in later releases.

Last updated: Oct 21, 2026, 4:02 PM CDT. Raw values are shown in source units; any conversion is labeled. See methodology and data sources.

Download:Illinois production (CSV)