Company: DTK
Filing Date: 2025-10-30
Form Type: 10-Q
Source: 0000936340-25-000223
Chunk: 9

Company: DTE ENERGY CO
Filing Date: 2025-10-30
Form: 10-Q
Item: Part I, Item 2
Chunk 9
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 changes in sales volumes, which are summarized in the table below:

Three Months Ended September 30,Nine Months Ended September 30,2025202420252024(In Bcf)Gas MarketsGas sales7 8 97 84 End-user transportation41 39 121 127 48 47 218 211 Intermediate transportation122 116 425 381 Total170 163 643 592 

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Cost of gas — utility expense decreased $12 million and increased $65 million in the three and nine months ended September 30, 2025, respectively.  The decrease in the third quarter was primarily due to lower cost of gas of $13 million partially offset by higher sales volumes of $1 million.  The increase in the nine-month period was primarily due to higher sales volumes of $58 million and higher cost of gas of $7 million.

Operation and maintenance expense increased $17 million and $58 million in the three and nine months ended September 30, 2025, respectively.  The increase in the third quarter was primarily due to higher gas operations expense of $16 million.  The increase in the nine-month period was primarily due to higher gas operations expense of $40 million, higher benefits and other compensation expense of $6 million, higher EWR expense of $6 million, higher legal expense of $5 million, higher corporate support costs of $5 million, and higher uncollectible expense of $2 million, partially offset by one-time costs in 2024 of $8 million resulting from the voluntary separation incentive program.

Taxes other than income increased $2 million and $8 million in the three and nine months ended September 30, 2025, respectively.  The increase in both periods was primarily due to higher property taxes.

Other (Income) and Deductions increased $3 million and $12 million in the three and nine months ended September 30, 2025, respectively.  The increase in both periods was primarily due to higher interest expense.

Income Tax Expense (Benefit) changed $8 million and $5 million in the three and nine months ended September 30, 2025, respectively.  The decrease in the third quarter was primarily due to lower earnings.  The increase in the nine-month period was primarily due to higher earnings.

Outlook — DTE Gas will continue to move forward in its efforts to achieve operational excellence, sustain strong cash flows, and earn its authorized return on equity.  DTE Gas expects that planned significant