Company: DTK
Filing Date: 2025-10-30
Form Type: 10-Q
Source: 0000936340-25-000223
Chunk: 125

Company: DTE ENERGY CO
Filing Date: 2025-10-30
Form: 10-Q
Item: Part I, Item 1
Chunk 125
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42)Other realized gain (loss)55 $339 

Nine Months(In millions)Realized gas structured and gas transportation strategies - $1,540 primarily due to higher gas prices, $23 settled financial hedges$1,563 Unrealized MTM - $110 gains compared to ($67) losses in the prior period177 Other realized gain (loss)179 $1,919 

Purchased power, gas, and other — non-utility expense increased $352 million and $1,910 million in the three and nine months ended September 30, 2025, respectively.  The following tables detail changes relative to the comparable prior periods:

Three Months(In millions)Gas structured and gas transportation strategies - primarily higher gas prices$322 Unrealized MTM - ($49) gains compared to ($45) gains in the prior period(4)Other realized (gain) loss34 $352 

64

Nine Months(In millions)Realized gas structured and gas transportation strategies - primarily higher gas prices$1,584 Unrealized MTM - $97 losses compared to ($83) gains in the prior period180 Other realized (gain) loss146 $1,910 

Operation and maintenance expense increased $2 million and $5 million in the three and nine months ended September 30, 2025, respectively.  The increase in the nine-month period was primarily due to higher compensations costs.

Natural gas structured transactions typically involve a physical purchase or sale of natural gas in the future and/or natural gas basis financial instruments which are derivatives and a related non-derivative pipeline transportation contract.  These gas structured transactions can result in significant earnings volatility as the derivative components are marked-to-market without revaluing the related non-derivative contracts.

Operating Income decreased $12 million for the three months ended September 30, 2025, which includes a $15 million favorable change in timing related gains primarily related to gas strategies that will reverse in future periods as the underlying contracts settle.  The decrease also includes a $23 million unfavorable change in timing related gains and losses primarily related to gas strategies that were recognized in previous periods and reversed in the current period as the underlying contracts settled.

Operating Income increased $5 million for the nine months ended September 30, 2025, which includes a $79 million unfavorable change in timing related gains and losses primarily related to gas strategies that will reverse in future periods as the underlying contracts settle.  The increase also includes a $