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EARNINGS PER SHARE AND DIVIDENDS (Tables)

9 Months Ended

Sep. 30, 2025

Earnings Per Share [Abstract]

Reconciliation of Basic and Diluted Earnings Per Share

The following is a reconciliation of basic and diluted earnings per share:

			Three Months Ended												Nine Months Ended
			September 30,												September 30,
			2025						2024						2025						2024
			(millions, except per share amounts)
Basic and Diluted Earnings per Common Share
Net Income Attributable to DT Midstream			$	115					$	88					$	330					$	281
Average number of common shares outstanding — basic			101.6						97.1						101.6						97.1
Incremental shares attributable to:
Average dilutive restricted stock units and performance share awards			0.9						0.9						0.9						0.7
Average number of common shares outstanding — diluted			102.5						98.0						102.5						97.8
Basic Earnings per Common Share			$	1.14					$	0.91					$	3.25					$	2.90
Diluted Earnings per Common Share			$	1.13					$	0.90					$	3.22					$	2.87

Schedule of Cash Dividends Declared

We declared the following cash dividends:

Dividends Declared						Dividend Amount												Dividend Payment Date
(quarter ended)						(per-share)						(millions)
2024
March 31						$	0.735					$	71					April 2024
June 30						$	0.735					$	71					July 2024
September 30						$	0.735					$	71					October 2024
December 31						$	0.735					$	75					January 2025
2025
March 31						$	0.820					$	83					April 2025
June 30						$	0.820					$	83					July 2025
September 30						$	0.820					$	83					October 2025

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Tabular disclosure of information related to dividends declared, including paid and unpaid dividends.

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 260
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482662/260-10-50-1

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