Illinois Natural Gas Summary


	Natural Gas Summary


	Area:				Period:

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Definitions, Sources & Notes

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			Data Series				Area

Oct-25

Nov-25

Dec-25

Jan-26

Feb-26

Mar-26

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History

Prices
(Dollars per Thousand Cubic Feet)

Citygate

3.21

4.04

4.30

5.70

4.30

4.59

Residential

15.45

10.56

9.48

9.65

11.40

12.10

Commercial

12.82

9.74

8.26

8.38

9.72

10.52

Industrial

7.78

6.92

6.68

7.13

8.60

8.24

Electric Power

3.03

3.60

4.22

17.78

3.72

2.92

Production
(Million Cubic Feet)

Gross Withdrawals

NA

NA

NA

NA

NA

NA

From Gas Wells

NA

NA

NA

NA

NA

NA

From Oil Wells

NA

NA

NA

NA

NA

NA

From Shale Gas Wells

NA

NA

NA

NA

NA

NA

From Coalbed Wells

NA

NA

NA

NA

NA

NA

Repressuring

NA

NA

NA

NA

NA

NA

Nonhydrocarbon Gases Removed

NA

NA

NA

NA

NA

NA

Vented and Flared

NA

NA

NA

NA

NA

NA

Marketed Production

NA

NA

NA

NA

NA

NA

NGPL Production, Gaseous Equivalent

Dry Production

Underground Storage
(Million Cubic Feet)

Total Capacity

1,017,523

1,017,523

1,017,940

1,017,940

1,017,940

1,017,940

Gas in Storage

972,894

972,460

924,749

857,089

822,023

801,505

Base Gas

715,387

715,567

715,587

715,587

715,587

715,587

Working Gas

257,507

256,892

209,161

141,501

106,435

85,918

Injections

45,018

16,609

3,712

3,117

3,865

1,995

Withdrawals

25

16,935

51,423

70,776

39,153

22,683

Net Withdrawals

-44,993

326

47,711

67,660

35,288

20,688

Consumption
(Million Cubic Feet)

Delivered to Consumers

71,322

100,914

154,047

177,524

125,256

101,200

Residential

15,497

40,242

72,392

84,574

56,370

40,986

Commercial

14,284

21,726

36,129

42,892

31,272

24,661

Industrial

21,079

23,713

27,192

28,488

21,256

22,432

Vehicle Fuel

13

12

13

13

11

13

Electric Power

20,449

15,222

18,322

21,557

16,346

13,109

- = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data.

Notes: Prices are in nominal dollars. Through 2001, electric power price data are for regulated electric utilities only; beginning in 2002, data also include nonregulated members of the electric power sector. Monthly preliminary (from January 2018 to present) state-level data for the production series, except marketed production, are not available until after the final annual reports for this series is collected and processed. Final annual data are generally available in the third quarter of the following year. Gas volumes delivered for use as vehicle fuel are included in the State annual totals through 2010 but not in the State monthly components. Gas volumes delivered for vehicle fuel are included in the State monthly totals from January 2011 forward. As of report year 2021, well count data have been discontinued. The latest natural gas well count data can be found at U.S. Oil and Natural Gas Wells by Production Rate. See Definitions, Sources, and Notes link above for more information on this table.

Release Date: 5/29/2026

Next Release Date: 6/30/2026