v3.26.1
Regulatory Matters (Tables)
6 Months Ended
Jun. 30, 2026
Regulated Operations [Abstract]  
Schedule of Regulatory Assets and Liabilities

We had the following regulatory assets and liabilities:

 

 

As of

 

As of

 

 

June 30, 2026

 

December 31, 2025

 

 

(in millions)

 

Regulatory assets

 

 

 

 

Winter Storm Uri

$

18.1

 

$

50.7

 

Deferred energy and fuel cost adjustments

 

93.7

 

 

83.3

 

Deferred gas cost adjustments

 

9.0

 

 

10.2

 

Gas price derivatives

 

0.4

 

 

4.6

 

Deferred taxes on AFUDC

 

11.2

 

 

10.6

 

Employee benefit plans and related deferred taxes

 

85.9

 

 

87.4

 

Environmental

 

13.2

 

 

13.1

 

Loss on reacquired debt

 

13.3

 

 

14.1

 

Deferred taxes on flow through accounting

 

98.1

 

 

94.8

 

Other regulatory assets

 

35.1

 

 

25.9

 

Total regulatory assets

 

378.0

 

 

394.7

 

Less current regulatory assets

 

(121.0

)

 

(139.7

)

Regulatory assets, non-current

$

257.0

 

$

255.0

 

 

 

 

 

Regulatory liabilities

 

 

 

 

Deferred energy and fuel cost adjustments

$

21.9

 

$

12.3

 

Deferred gas cost adjustments

 

31.7

 

 

51.5

 

Employee benefit plan costs and related deferred taxes

 

35.7

 

 

36.2

 

Cost of removal

 

225.3

 

 

216.5

 

Excess deferred income taxes

 

226.1

 

 

230.3

 

Colorado renewable energy

 

38.3

 

 

33.2

 

Other regulatory liabilities

 

9.7

 

 

8.2

 

Total regulatory liabilities

 

588.7

 

 

588.2

 

Less current regulatory liabilities

 

(94.4

)

 

(99.9

)

Regulatory liabilities, non-current

$

494.3

 

$

488.3