Illinois Natural Gas Summary


	Natural Gas Summary


	Area:				Period:

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Definitions, Sources & Notes

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			Data Series				Area

Jan-26

Feb-26

Mar-26

Apr-26

May-26

Jun-26

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History

Prices
(Dollars per Thousand Cubic Feet)

Citygate

5.70

4.30

4.59

2.94

3.60

3.44

Residential

9.65

11.40

12.10

14.29

15.39

19.71

Commercial

8.38

9.72

10.52

12.57

14.33

17.67

Industrial

7.13

8.60

8.24

8.63

9.67

8.47

Electric Power

17.78

3.72

2.92

2.48

2.75

2.94

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

1,017,940

1,017,940

1,017,940

1,017,940

1,017,940

1,017,940

Gas in Storage

857,089

812,160

791,288

792,161

816,290

855,783

Base Gas

715,587

715,587

715,411

714,805

715,167

715,550

Working Gas

141,501

96,573

75,877

77,356

101,123

140,233

Injections

3,117

3,865

3,215

11,010

25,550

39,876

Withdrawals

70,776

49,015

24,082

10,135

1,421

383

Net Withdrawals

67,660

45,151

20,867

-875

-24,129

-39,493

Consumption
(Million Cubic Feet)

Delivered to Consumers

177,524

125,256

101,200

68,640

55,779

54,682

Residential

84,574

56,370

40,986

21,496

15,285

8,459

Commercial

42,892

31,272

24,661

15,045

11,541

9,127

Industrial

28,488

21,256

22,432

17,880

16,966

16,532

Vehicle Fuel

13

11

13

12

13

12

Electric Power

21,557

16,346

13,109

14,207

11,974

20,552

- = 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: 8/31/2026

Next Release Date: 9/30/2026