DTM / DT Midstream, Inc. - Arquivamentos da SEC, Relatório Anual, Declaração de Procuração

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2026 Commission File Numbe

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2026 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.) R

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 5, 2026 Commission File Numbe

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 5, 2026 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.) R

Mine Safety Disclosure

EXHIBIT 95.1 Mine Safety Disclosure The following disclosure is provided pursuant to Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act, which requires certain disclosures by companies required to file periodic reports under the Securities Exchange Act of 1934, as amended, that operate mines regulated under the Federal Mine Safety and Health Act of 1977. The table tha

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Exhibit 99.1 NEWS RELEASE DT Midstream Reports Strong First Quarter 2026 Results DETROIT, Apr. 30, 2026 – DT Midstream, Inc. (NYSE: DTM) today announced first quarter 2026 reported net income of $130 million, or $1.27 per diluted share. For the first quarter of 2026, Operating Earnings were $130 million, or $1.27 per diluted share. Adjusted EBITDA for the quarter was $308 million. Reconciliations

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended March 31, 2026 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended March 31, 2026 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 30, 2026 Commission File Nu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 30, 2026 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.

2 Safe Harbor Statement New slide This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute “forward-looking statements” under the securities laws. These forward-looking statements ar

Exhibit 99.2 2 Safe Harbor Statement New slide This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute “forward-looking statements” under the securities laws. These forward-looking statements are intended to provide management’s current expectations or plans for our future operating and financial performance, business prospects,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  ) ☒ Filed by the Registrant  ☐ Filed by a Party other than the Registrant Check the appropriate box:  ☐     Preliminary Proxy Statement  ☐     Confidential, For Use of the Commission Only (as permitte

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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) ☒ Filed by the Registrant  ☐ Filed by a Party other than the Registrant Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ De

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Exhibit 99.1 NEWS RELEASE DT Midstream Reports Record 2025 Results; Raises Dividend and Increases Project Backlog by 50% • Full year 2025 Adjusted EBITDA of $1.138 billion, a 17% increase from 2024 • Increased dividend by 7% • Announced final investment decision on two pipeline projects DETROIT, Feb. 19, 2026 – DT Midstream, Inc. (NYSE: DTM) today announced fourth quarter 2025 reported net income

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 19, 2026 Commission File

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 19, 2026 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification

2 Safe Harbor Statement New slide This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute “forward-looking statements” under the securities laws. These forward-looking statements ar

Exhibit 99.2 2 Safe Harbor Statement New slide This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute “forward-looking statements” under the securities laws. These forward-looking statements are intended to provide management’s current expectations or plans for our future operating and financial performance, business prospects,

Calculation of Filing Fee Tables Form S-8 (Form Type) DT Midstream, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) DT Midstream, Inc.

Mine Safety Disclosure

EXHIBIT 95.1 Mine Safety Disclosure The following disclosure is provided pursuant to Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act, which requires certain disclosures by companies required to file periodic reports under the Securities Exchange Act of 1934, as amended, that operate mines regulated under the Federal Mine Safety and Health Act of 1977. The table tha

SUBSIDIARIES OF DT MIDSTREAM, INC.

Exhibit 21.1 SUBSIDIARIES OF DT MIDSTREAM, INC. DT Midstream’s principal subsidiaries as of December 31, 2025 are listed below. All other subsidiaries, if considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary. Subsidiary State of Incorporation 1 Bluestone Pipeline Company of Pennsylvania, LLC Pennsylvania 2 DTM Appalachia Gathering, LLC Delaware 3 DTM In

As filed with the Securities and Exchange Commission on February 19, 2026

As filed with the Securities and Exchange Commission on February 19, 2026 Registration No.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2025 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2025 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other juri

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Exhibit 99.1 NEWS RELEASE DT Midstream Chief Executive Officer David Slater Elected Executive Chairman of The Board DETROIT, January 29, 2026 – DT Midstream, Inc. (NYSE: DTM) announced that CEO David Slater has been elected Executive Chairman of the Board of Directors, effective January 28, 2026. Slater succeeds Robert Skaggs, Jr., who will remain a member of the company’s Board. Slater has served

UNITED STATES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 27, 2026 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification N

2 Safe Harbor Statement New slide This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute “forward-looking statements” under the securities laws. These forward-looking statements ar

Exhibit 99.2 2 Safe Harbor Statement New slide This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute “forward-looking statements” under the securities laws. These forward-looking statements are intended to provide management’s current expectations or plans for our future operating and financial performance, business prospects,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 30, 2025 Commission File

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 30, 2025 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification N

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Exhibit 99.1 NEWS RELEASE DT Midstream Reports Strong Third Quarter 2025 Results; Raises Adjusted EBITDA Guidance DETROIT, Oct. 30, 2025 – DT Midstream, Inc. (NYSE: DTM) today announced third quarter 2025 reported net income of $115 million, or $1.13 per diluted share. For the third quarter of 2025, Operating Earnings were also $115 million, or $1.13 per diluted share. Adjusted EBITDA for the quar

Mine Safety Disclosure

EXHIBIT 95.1 Mine Safety Disclosure The following disclosure is provided pursuant to Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act, which requires certain disclosures by companies required to file periodic reports under the Securities Exchange Act of 1934, as amended, that operate mines regulated under the Federal Mine Safety and Health Act of 1977. The table tha

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended September 30, 2025 ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended September 30, 2025 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40392 DT Midstream, Inc. Delaware 38-2663964 (State or o

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 17, 2025 Commission Fil

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 17, 2025 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification

Mine Safety Disclosure

EXHIBIT 95.1 Mine Safety Disclosure The following disclosure is provided pursuant to Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act, which requires certain disclosures by companies required to file periodic reports under the Securities Exchange Act of 1934, as amended, that operate mines regulated under the Federal Mine Safety and Health Act of 1977. The table tha

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 31, 2025 Commission File Num

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 31, 2025 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.)

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Exhibit 99.1 NEWS RELEASE DT Midstream Reports Strong Second Quarter 2025 Results DETROIT, July 31, 2025 – DT Midstream, Inc. (NYSE: DTM) today announced second quarter 2025 reported net income of $107 million, or $1.04 per diluted share. For the second quarter of 2025, Operating Earnings were also $107 million, or $1.04 per diluted share. Adjusted EBITDA for the quarter was $277 million. Reconcil

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended June 30, 2025 ☐ TRANSITION REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended June 30, 2025 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other

2 Safe Harbor Statement New slide This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute “forward-looking statements” under the securities laws. These forward-looking statements ar

Exhibit 99.2 2 Safe Harbor Statement New slide This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute “forward-looking statements” under the securities laws. These forward-looking statements are intended to provide management’s current expectations or plans for our future operating and financial performance, business prospects,

SECOND AMENDED AND RESTATED BYLAWS DT MIDSTREAM, INC. (hereinafter called the “Corporation”) ARTICLE I MEETINGS OF STOCKHOLDERS

Exhibit 3.3 SECOND AMENDED AND RESTATED BYLAWS OF DT MIDSTREAM, INC. (hereinafter called the “Corporation”) ARTICLE I MEETINGS OF STOCKHOLDERS SECTION 1.01. Place of Meetings. Meetings of the stockholders of the Corporation for the election of directors or for any other purpose shall be held at such time and place, either within or without the State of Delaware, as shall be designated from time to

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NEWS RELEASE DT Midstream Achieves Investment Grade Credit Rating DETROIT, May 20, 2025 – DT Midstream, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2025 Commission File Numb

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2025 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 9, 2025 (May 6, 2025) Commiss

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 9, 2025 (May 6, 2025) Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identif

Certificate of Amendment to the Amended and Restated Certificate of Incorporation of DT Midstream, Inc., dated May 9, 2025

CERTIFICATE OF AMENDMENT TO THE AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF DT MIDSTREAM, INC.

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 30, 2025 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended March 31, 2025 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended March 31, 2025 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other

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NEWS RELEASE DT Midstream Reports Strong First Quarter 2025 Results DETROIT, Apr. 30, 2025 – DT Midstream, Inc. (NYSE: DTM) today announced first quarter 2025 reported net income of $108 million, or $1.06 per diluted share. For the first quarter of 2025, Operating Earnings were $108 million, or $1.06 per diluted share. Adjusted EBITDA for the quarter was $280 million. Reconciliations of Operating

Mine Safety Disclosure

EXHIBIT 95.1 Mine Safety Disclosure The following disclosure is provided pursuant to Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act, which requires certain disclosures by companies required to file periodic reports under the Securities Exchange Act of 1934, as amended, that operate mines regulated under the Federal Mine Safety and Health Act of 1977. The table tha

First Quarter 2025 Earnings Call April 30, 2025 NYSE: DTM Bluestone Gathering Lateral Pipeline

First Quarter 2025 Earnings Call April 30, 2025 NYSE: DTM Bluestone Gathering Lateral Pipeline 2 Safe Harbor Statement New slide This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute “fo rward - looking statements” under the securities laws.

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202 Form 1 0-KUNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40392 DT Midstream, Inc. Delaware 38-2663964 (Stat

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) ☒ Filed by the Registrant  ☐ Filed by a Party other than the Registrant Check the appropriate box:  ☐     Preliminary Proxy Statement  ☐     Confidential, For Use of the Commission Only (as permitt

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) ☒ Filed by the Registrant  ☐ Filed by a Party other than the Registrant Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ De

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) ☒ Filed by the Registrant  ☐ Filed by a Party other than the Registrant Check the appropriate box: ☒     Preliminary Proxy Statement  ☐     Confidential, For Use of the Commission Only (as permitte

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 26, 2025 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification

W I T N E S S E T H

Exhibit 4.3 First Supplemental Indenture (this “Supplemental Indenture”), dated as of January 30, 2025, among Guardian Pipeline, L.L.C. (“Guardian”), Midwestern Gas Transmission Company (“Midwestern”), Viking Gas Transmission Company (“Viking”) and DTM Interstate Transportation, LLC (“DTM Interstate”, and, collectively with Guardian, Midwestern and Viking, the “Guaranteeing Subsidiaries”) and U.S.

W I T N E S S E T H

Exhibit 4.1 First Supplemental Indenture (this “Supplemental Indenture”), dated as of January 30, 2025, among DT Midstream, Inc. (the “Issuer”), Guardian Pipeline, L.L.C. (“Guardian”), Midwestern Gas Transmission Company (“Midwestern”), Viking Gas Transmission Company (“Viking”) and DTM Interstate Transportation, LLC (“DTM Interstate”, and, collectively with Guardian, Midwestern and Viking, the “G

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NEWS RELEASE DT Midstream Reports Record 2024 Results; Raises Dividend and 2025 Adjusted EBITDA Guidance • Full year 2024 Adjusted EBITDA of $969 million • Increased dividend by 12% • Increased 2025 Adjusted EBITDA guidance • Announced new agreements to serve utility-scale power generation projects DETROIT, Feb.

Fourth Quarter 2024 Earnings Call February 26, 2025 Bluestone Gathering Lateral Pipeline DTMidstream NYSE: DTM

Fourth Quarter 2024 Earnings Call February 26, 2025 Bluestone Gathering Lateral Pipeline DTMidstream NYSE: DTM Safe Harbor Statement This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute "forward-looking statements" under the securities laws.

W I T N E S S E T H

Exhibit 4.2 Second Supplemental Indenture (this “Supplemental Indenture”), dated as of January 30, 2025, among Guardian Pipeline, L.L.C. (“Guardian”), Midwestern Gas Transmission Company (“Midwestern”), Viking Gas Transmission Company (“Viking”) and DTM Interstate Transportation, LLC (“DTM Interstate”, and, collectively with Guardian, Midwestern and Viking, the “Guaranteeing Subsidiaries”) and U.S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other juri

Mine Safety Disclosure

EXHIBIT 95.1 Mine Safety Disclosure The following disclosure is provided pursuant to Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act, which requires certain disclosures by companies required to file periodic reports under the Securities Exchange Act of 1934, as amended, that operate mines regulated under the Federal Mine Safety and Health Act of 1977. The table tha

SUBSIDIARIES OF DT MIDSTREAM, INC.

Exhibit 21.1 SUBSIDIARIES OF DT MIDSTREAM, INC. DT Midstream’s principal subsidiaries as of December 31, 2024 are listed below. All other subsidiaries, if considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary. Subsidiary State of Incorporation 1 Bluestone Pipeline Company of Pennsylvania, LLC Pennsylvania 2 DTM Appalachia Gathering, LLC Delaware 3 DTM LE

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DT Midstream Announces Closing of Midwest Pipeline Acquisition DETROIT, Dec. 31, 2024 – DT Midstream, Inc. (NYSE: DTM) today announced that it has successfully closed on the acquisition of a portfolio of three FERC-regulated natural gas transmission pipelines from ONEOK, Inc. (NYSE: OKE), effective as of 11:59 p.m. CT on Dec. 31, 2024, for a total cash consideration of $1.2 billion. “The bolt-on a

Regulation FD Disclosure, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 31, 2024 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 12, 2024 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification

Amendment No. 4 to Credit Agreement, dated as of December 12, 2024, by and among DT Midstream, Inc., lenders party thereto and Barclays Bank PLC, as administrative agent and collateral agent.

Execution Version AMENDMENT NO. 4 TO CREDIT AGREEMENT THIS AMENDMENT NO. 4 TO CREDIT AGREEMENT, dated as of December 12, 2024 (this “Amendment”), is entered into among DT Midstream, Inc., a Delaware corporation (the “Borrower”), the Guarantors party hereto, BARCLAYS BANK PLC, as administrative agent (the “Administrative Agent”) and collateral agent (the “Collateral Agent”) and the Lenders and L/C

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NEWS RELEASE DT MIDSTREAM ANNOUNCES CLOSING OF OFFERING OF SENIOR SECURED NOTES DETROIT, December 6, 2024 — DT Midstream, Inc.

Indenture, dated as of December 6, 2024, among DT Midstream, Inc., the Guarantors and U.S. Bank Trust Company, National Association, as trustee and notes collateral agent.

Execution Version DT MIDSTREAM, INC., as Issuer, AND EACH OF THE GUARANTORS PARTY HERETO 5.800% SENIOR SECURED NOTES DUE 2034 INDENTURE Dated as of December 6, 2024 U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Trustee and Notes Collateral Agent TABLE OF CONTENTS Page ARTICLE 1 DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.01. Definitions 1 Section 1.02. Other Definitions 22 Section 1.0

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 6, 2024 DT Midstream, Inc. Commission File Number: 1-40392 Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification N

Amendment No. 3 to Credit Agreement, dated as of November 25, 2024, by and among DT Midstream, Inc., lenders party thereto and Barclays Bank PLC, as administrative agent and collateral agent.

Exhibit 10.1 Execution Version AMENDMENT NO. 3 TO CREDIT AGREEMENT THIS AMENDMENT NO. 3 TO CREDIT AGREEMENT (this “Amendment”) dated as of November 25, 2024, is made by and among DT Midstream, Inc., a Delaware corporation (the “Borrower”), BARCLAYS BANK PLC, as administrative agent (the “Administrative Agent”), and the Lenders party hereto. W I T N E S S E T H: WHEREAS, the Borrower, the Administr

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 25, 2024 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification

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Exhibit 99.1 NEWS RELEASE DT MIDSTREAM ANNOUNCES PRICING OF OFFERING OF SENIOR SECURED NOTES DETROIT, November 21, 2024 — DT Midstream, Inc. (“DT Midstream” or the “Company”) (NYSE: DTM) today announced that it has priced an offering (the “Offering”) of $650,000,000 of 5.800% Senior Secured Notes due 2034 (the “Notes”). The Notes will be issued by DT Midstream, guaranteed by certain of DT Midstrea

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 21, 2024 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification

DT Midstream, Inc. Common Stock UNDERWRITING AGREEMENT

Exhibit 1.1 Execution Version 3,625,000 DT Midstream, Inc. Common Stock UNDERWRITING AGREEMENT November 20, 2024 Barclays Capital Inc. As Representative of the several Underwriters named in Schedule I attached hereto, c/o Barclays Capital Inc. 745 Seventh Avenue New York, New York 10019 Ladies and Gentlemen: DT Midstream, Inc., a Delaware corporation (the “Company”), proposes to sell 3,625,000 sha

# # #

Exhibit 99.1 NEWS RELEASE DT Midstream Announces Pricing of Upsized Public Offering of Common Stock DETROIT, November 20, 2024 – DT Midstream, Inc. (NYSE: DTM) today announced the pricing of its previously announced underwritten registered public offering. The size of the offering increased from the previously announced $300,000,000 of shares of common stock to $366,125,000 of shares of the compan

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 20, 2024 Commission File

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 20, 2024 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification

Table 1: Newly Registered and Carry Forward Securities

Calculation of Filing Fee Tables S-3 DT Midstream, Inc. Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date F

3,625,000 Shares

TABLE OF CONTENTS Filed pursuant to Rule 424(b)(5) Registration File No. 333-283345 PROSPECTUS SUPPLEMENT (To Prospectus dated November 19, 2024) 3,625,000 Shares   DT Midstream, Inc. Common Stock This is an offering of the common stock of DT Midstream, Inc. We are offering 3,625,000 of shares of our common stock, par value $0.01. Our common stock trades on the New York Stock Exchange under the sy

Subject to Completion, dated November 19, 2024

TABLE OF CONTENTS The information in this prospectus supplement is not complete and may be changed.

INDENTURE DT MIDSTREAM, INC., as Issuer [ ], as Trustee Dated as of [ ] Providing for the Issuance of Debt Securities in Series DT MIDSTREAM, INC. Reconciliation and tie between Trust Indenture Act of 1939 and Indenture, dated as of [ ]

Exhibit 4.4 INDENTURE between DT MIDSTREAM, INC., as Issuer and [ ], as Trustee Dated as of [ ] Providing for the Issuance of Debt Securities in Series DT MIDSTREAM, INC. Reconciliation and tie between Trust Indenture Act of 1939 and Indenture, dated as of [ ] Trust Indenture Act Section Indenture Section Sec. 310(a)(1) 607 (a)(2) 607 (b) 604, 607 (b)(1) 607 Sec. 311 604 Sec. 312(c) 701 Sec. 313 1

PURCHASE AND SALE AGREEMENT BY AND AMONG ONEOK PARTNERS INTERMEDIATE LIMITED PARTNERSHIP, BORDER MIDWESTERN COMPANY DTM INTERSTATE TRANSPORTATION, LLC Dated as of November 19, 2024

Exhibit 10.1 PURCHASE AND SALE AGREEMENT BY AND AMONG ONEOK PARTNERS INTERMEDIATE LIMITED PARTNERSHIP, BORDER MIDWESTERN COMPANY and DTM INTERSTATE TRANSPORTATION, LLC Dated as of November 19, 2024 TABLE OF CONTENTS Page ARTICLE I CERTAIN DEFINITIONS 4 Section 1.1 Certain Definitions 4 Section 1.2 Rules of Construction 4 ARTICLE II PURCHASE AND SALE TRANSACTIONS 6 Section 2.1 Closing 6 Section 2.2

As filed with the Securities and Exchange Commission on November 19, 2024

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on November 19, 2024 Registration No.

Midwest Pipeline Acquisition November 19, 2024 DT Midstream NYSE: DTM 2 Safe Harbor Statement New slide Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform

Exhibit 99.2 Midwest Pipeline Acquisition November 19, 2024 DT Midstream NYSE: DTM 2 Safe Harbor Statement New slide Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Words such as “believe,” “expect,” “expectations,” “plans,” “strategy,” “prospects,” “estimate,” “project,” “target,” “antic

# # #

Exhibit 99.1 DT Midstream Announces $1.2 Billion Acquisition of Strategic Midwest FERC-Regulated Natural Gas Pipelines • Three regulated natural gas transmission pipelines with total capacity of more than 3.7 Bcf/d across the Upper Midwest • Premier assets with a high-quality demand-pull customer base • Connected to DTM’s existing assets and strategically located to take advantage of strong power

Table 1: Newly Registered and Carry Forward Securities

Calculation of Filing Fee Tables S-3 DT Midstream, Inc. Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 19, 2024 Commission File

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 19, 2024 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended September 30, 2024 ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended September 30, 2024 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40392 DT Midstream, Inc. Delaware 38-2663964 (State or o

Third Quarter 2024 Earnings Call October 29, 2024 Ammons compressor station - Appalachia Gathering System phase 2 expansion DT Midstream

Third Quarter 2024 Earnings Call October 29, 2024 Ammons compressor station - Appalachia Gathering System phase 2 expansion DT Midstream Safe Harbor Statement This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute "forward-looking statements" under the securities laws.

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NEWS RELEASE DT Midstream Reports Strong Third Quarter 2024 Results; Raises Adjusted EBITDA Guidance DETROIT, Oct.

Mine Safety Disclosure

EXHIBIT 95.1 Mine Safety Disclosure The following disclosure is provided pursuant to Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act, which requires certain disclosures by companies required to file periodic reports under the Securities Exchange Act of 1934, as amended, that operate mines regulated under the Federal Mine Safety and Health Act of 1977. The table tha

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 29, 2024 Commission File

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 29, 2024 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification N

DT MIDSTREAM, INC. as Issuer, AND EACH OF THE GUARANTORS PARTY HERETO FIRST SUPPLEMENTAL INDENTURE Dated as of August 12, 2024 Dated as of April 11, 2022 U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Trustee and Notes Collateral Agent

Exhibit 4.4 DT MIDSTREAM, INC. as Issuer, AND EACH OF THE GUARANTORS PARTY HERETO FIRST SUPPLEMENTAL INDENTURE Dated as of August 12, 2024 to INDENTURE Dated as of April 11, 2022 U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Trustee and Notes Collateral Agent This FIRST SUPPLEMENTAL INDENTURE (this “First Supplemental Indenture”), dated as of August 12, 2024, is by and among DT Midstream, Inc.

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 26, 2024 (September 24, 2024) Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Em

Mine Safety Disclosure

EXHIBIT 95.1 Mine Safety Disclosure The following disclosure is provided pursuant to Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act, which requires certain disclosures by companies required to file periodic reports under the Securities Exchange Act of 1934, as amended, that operate mines regulated under the Federal Mine Safety and Health Act of 1977. The table tha

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended June 30, 2024 ☐ TRANSITION REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended June 30, 2024 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other

# # #

NEWS RELEASE DT Midstream Reports Strong Second Quarter 2024 Results DETROIT, July 30, 2024 – DT Midstream, Inc.

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 30, 2024 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.)

Second Quarter 2024 Earnings Call July 30, 2024 Ammons compressor station - Appalachia Gathering System phase 2 expansion DT Midstream

Second Quarter 2024 Earnings Call July 30, 2024 Ammons compressor station - Appalachia Gathering System phase 2 expansion DT Midstream Safe Harbor Statement This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute "forward-looking statements" under the securities laws.

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 13, 2024 (May 10, 2024) Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Ident

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended March 31, 2024 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended March 31, 2024 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 30, 2024 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.

First Quarter 2024 Earnings Call April 30, 2024 Ammons compressor station Appalachia Gathering System phase 2 expansion

First Quarter 2024 Earnings Call April 30, 2024 Ammons compressor station Appalachia Gathering System phase 2 expansion Safe Harbor Statement This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute "forward-looking statements" under the securities laws.

Mine Safety Disclosure

EXHIBIT 95.1 Mine Safety Disclosure The following disclosure is provided pursuant to Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act, which requires certain disclosures by companies required to file periodic reports under the Securities Exchange Act of 1934, as amended, that operate mines regulated under the Federal Mine Safety and Health Act of 1977. The table tha

# # #

Exhibit 99.1 NEWS RELEASE DT Midstream Reports Strong First Quarter 2024 Results DETROIT, Apr. 30, 2024 – DT Midstream, Inc. (NYSE: DTM) today announced first quarter 2024 reported net income of $97 million, or $0.99 per diluted share. For the first quarter of 2024, Operating Earnings were $97 million, or $0.99 per diluted share. Adjusted EBITDA for the quarter was $245 million. Reconciliations of

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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) ☒ Filed by the Registrant  ☐ Filed by a Party other than the Registrant Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, For Use of the Commission Only (as permitted by Ru

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) ☒ Filed by the Registrant  ☐ Filed by a Party other than the Registrant Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ De

Insider Trading Policy

Exhibit 19.1 Insider Trading Policy Company Policy Insider Trading Revision 1 June 1, 2023 1.Applicability This Policy applies to all employees of DT Midstream and their respective family members. This Policy also applies to contract personnel (defined as contractors, vendors, consultants or any others performing work on behalf of DT Midstream) and any other external party that may be considered a

Exhibit 4.1

Exhibit 4.1 DESCRIPTION OF SECURITIES The following is a summary of the terms of our securities. This summary does not purport to be complete, nor does it represent all information which you might find to be important for understanding our capital stock. This summary is subject to, and qualified in its entirety by reference to, our amended and restated certificate of incorporation and bylaws. Refe

AMENDED AND RESTATED CHANGE-IN-CONTROL SEVERANCE AGREEMENT

Exhibit 10.1 AMENDED AND RESTATED CHANGE-IN-CONTROL SEVERANCE AGREEMENT This AMENDED AND RESTATED CHANGE-IN-CONTROL SEVERANCE AGREEMENT (the “Agreement”) is entered into as of December 21, 2023 (the “Effective Date”) between DT Midstream, Inc., a Delaware corporation (the “Company”), and {EXECUTIVE} (the “Executive”). RECITALS The Executive is an executive or a key employee of the Company or one o

# # #

Exhibit 99.1 DT Midstream Reports Strong Fourth Quarter 2023 Results; Raises Dividend and 2024 Adjusted EBITDA Guidance • Full year 2023 Adjusted EBITDA of $924 million represents a 10% increase over the prior year • Increased dividend by 7% • Increased 2024 Adjusted EBITDA guidance • Provided 2025 Adjusted EBITDA early outlook DETROIT, Feb. 16, 2024 – DT Midstream, Inc. (NYSE: DTM) today announce

Fourth Quarter 2023 Earnings Call February 16, 2024 Ammons compressor station Appalachia Gathering System phase 2 expansion DT Midstream

Exhibit 99.2 Fourth Quarter 2023 Earnings Call February 16, 2024 Ammons compressor station Appalachia Gathering System phase 2 expansion DT Midstream Safe Harbor Statement This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute "forward looking statements" under the securities laws. These forward looking statements are intended t

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 16, 2024 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other juri

SUBSIDIARIES OF DT MIDSTREAM, INC.

Exhibit 21.1 SUBSIDIARIES OF DT MIDSTREAM, INC. DT Midstream’s principal subsidiaries as of December 31, 2023 are listed below. All other subsidiaries, if considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary. Subsidiary State of Incorporation 1 Bluestone Gas Corporation of New York, Inc. New York 2 Bluestone Pipeline Company of Pennsylvania, LLC Pennsyl

1

Exhibit 97.1 Clawback Policy Company Policy Clawback Policy Version 1 September 19, 2023 1.Applicability This Policy applies to all current and former Executive Officers of DT Midstream, Inc. (Company). Incentive-Based Compensation Received by a newly appointed Executive Officers prior to the Executive Officer’s appointment is not subject to this Policy. 2.Policy A.General 1.The purpose of this Po

Mine Safety Disclosure

EXHIBIT 95.1 Mine Safety Disclosure The following disclosure is provided pursuant to Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act, which requires certain disclosures by companies required to file periodic reports under the Securities Exchange Act of 1934, as amended, that operate mines regulated under the Federal Mine Safety and Health Act of 1977. The table tha

DTM / DT Midstream, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0792-dtmidstreaminc.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4)* Name of issuer: DT Midstream Inc Title of Class of Securities: Common Stock CUSIP Number: 23345M107 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the

DTM / DT Midstream, Inc. / BlackRock Inc. Passive Investment

SC 13G/A 1 us23345m1071012324.txt us23345m1071012324.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 2) DT Midstream, Inc. - (Name of Issuer) Common Stock - (Title of Class of Securities) 23345M107 - (CUSIP Number) December 31, 2023 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 22, 2023 (December 21, 2023) Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Empl

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 6, 2023 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification N

Wells Fargo Midstream and Utilities Symposium December 7, 2023 DT Midstream

Wells Fargo Midstream and Utilities Symposium December 7, 2023 DT Midstream Safe Harbor Statement This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute "forward-looking statements" under the securities laws.

Mine Safety Disclosure

EXHIBIT 95.1 Mine Safety Disclosure The following disclosure is provided pursuant to Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act, which requires certain disclosures by companies required to file periodic reports under the Securities Exchange Act of 1934, as amended, that operate mines regulated under the Federal Mine Safety and Health Act of 1977 (“Mine Act”).

THIRD QUARTER 2023 EARNINGS CALL NOVEMBER 1 , 2023

THIRD QUARTER 2023 EARNINGS CALL NOVEMBER 1 , 2023 2 Safe Harbor Statement New slide This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute “fo rward - looking statements” under the securities laws.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended September 30, 2023 ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended September 30, 2023 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40392 DT Midstream, Inc. Delaware 38-2663964 (State or o

# # #

NEWS RELEASE DT Midstream Reports Strong Third Quarter 2023 Results · Updates 2023 Adjusted EBITDA guidance to $905 to $925 million · Updates 2023 Distributable Cash Flow guidance to $650 to $675 million · Announces dividend of $0.

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 1, 2023 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification N

SECOND QUARTER 2023 EARNINGS CALL AUGUST 1, 2023 DT Midstream

SECOND QUARTER 2023 EARNINGS CALL AUGUST 1, 2023 DT Midstream Safe Harbor Statement This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute "forward-looking statements" under the securities laws.

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 1, 2023 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.

# # #

NEWS RELEASE DT Midstream Reports Strong Second Quarter 2023 Results; Announces New Ohio Utica Investment DETROIT, Aug.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended June 30, 2023 ☐ TRANSITION REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended June 30, 2023 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other

Mine Safety Disclosure

EXHIBIT 95.1 Mine Safety Disclosure The following disclosure is provided pursuant to Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act, which requires certain disclosures by companies required to file periodic reports under the Securities Exchange Act of 1934, as amended, that operate mines regulated under the Federal Mine Safety and Health Act of 1977. The table tha

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 29, 2023 (June 27, 2023) Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Ide

Amendment No. 2 to Credit Agreement, by and between DT Midstream, Inc. and Barclays Bank PLC, as administrative agent and collateral agent, dated June 27, 2023.

Exhibit 10.1 Execution Version AMENDMENT NO. 2 TO CREDIT AGREEMENT NOTICE OF EARLY OPT-IN ELECTION THIS AMENDMENT NO. 2 TO CREDIT AGREEMENT (this “Amendment”) dated as of June 27, 2023, is between DT Midstream, Inc., a Delaware corporation (the “Borrower”) and BARCLAYS BANK PLC, as administrative agent (the “Administrative Agent”) and collateral agent (the “Collateral Agent”). W I T N E S S E T H:

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 9, 2023 (May 5, 2023) Commiss

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 9, 2023 (May 5, 2023) Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identif

# # #

NEWS RELEASE DT Midstream Announces Quarterly Dividend DETROIT, May 5, 2023 – The Board of Directors of DT Midstream, Inc.

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 5, 2023 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.) R

Earnings Release of DT Midstream dated May 2, 2023.

DT Midstream Reports Strong First Quarter 2023 Results DETROIT, May 2, 2023 – DT Midstream, Inc.

Mine Safety Disclosure

EXHIBIT 95.1 Mine Safety Disclosure The following disclosure is provided pursuant to Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act, which requires certain disclosures by companies required to file periodic reports under the Securities Exchange Act of 1934, as amended, that operate mines regulated under the Federal Mine Safety and Health Act of 1977. The table tha

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 2, 2023 Commission File Numbe

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 2, 2023 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.) R

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended March 31, 2023 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended March 31, 2023 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other

First Quarter 2023 Earnings Call May 2, 2023 DT Midstream

First Quarter 2023 Earnings Call May 2, 2023 DT Midstream Safe Harbor Statement This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute "forward-looking statements" under the securities laws.

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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) ☒ Filed by the Registrant  ☐ Filed by a Party other than the Registrant Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ De

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) ☒ Filed by the Registrant  ☐ Filed by a Party other than the Registrant Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, For Use of the Commission Only (as permitted by Ru

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 10, 2023 Commission File Nu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 10, 2023 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.

MIZUHO ENERGY SUMMIT MARCH 13, 2023

MIZUHO ENERGY SUMMIT MARCH 13, 2023 Safe Harbor Statement This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute "forward-looking statements" under the securities laws.

# # #

NEWS RELEASE DT Midstream, Inc. Announces Board of Directors Changes DETROIT, Mar. 8, 2023 – The DT Midstream, Inc. Board of Directors announced the appointment of Angela Archon to its Board of Directors, effective March 7, 2023. Ms. Archon, who qualifies as an independent director, will serve as a Class III Director of DT Midstream until the company’s 2024 annual meeting of stockholders or until

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 7, 2023 Commission File Num

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 7, 2023 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.)

Supplemental Savings Plan Claims DT Midstream Benefit Plan Administration Committee 500 Woodward Avenue, 29th Floor Detroit, MI 48226

DT Midstream Supplemental Savings Plan Summary Plan Description Supplemental Savings Plan Summary Plan Description Table of contents Plan purpose and summary 1 Eligibility and enrollment 3 Eligibility 3 Electing to Contribute to the Plan 3 Your beneficiary 3 Your contributions 4 Pre-tax contributions 4 Company matching contributions 4 Additional company contributions 4 Vesting 5 Contribution limit

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other juri

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NEWS RELEASE DT Midstream Reports Strong Fourth Quarter 2022 Results; Raises 2023 Adjusted EBITDA Guidance • Delivered 2022 results exceeding the high end of guidance • Increased 2023 Adjusted EBITDA guidance • Provided 2024 Adjusted EBITDA early outlook • Increased dividend by 8% DETROIT, Feb.

SUBSIDIARIES OF DT MIDSTREAM, INC.

Exhibit 21.1 SUBSIDIARIES OF DT MIDSTREAM, INC. DT Midstream’s principal subsidiaries as of December 31, 2022 are listed below. All other subsidiaries, if considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary. Subsidiary State of Incorporation 1 Bluestone Gas Corporation of New York, Inc. New York 2 Bluestone Pipeline Company of Pennsylvania, LLC Pennsyl

Fourth Quarter 2022 Earnings Call February 16, 2023 DTMidstream

Fourth Quarter 2022 Earnings Call February 16, 2023 DTMidstream Safe Harbor Statement This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute "forward-looking statements" under the securities laws.

Mine Safety Disclosure

EXHIBIT 95.1 Mine Safety Disclosure The following disclosure is provided pursuant to Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act, which requires certain disclosures by companies required to file periodic reports under the Securities Exchange Act of 1934, as amended, that operate mines regulated under the Federal Mine Safety and Health Act of 1977. The table tha

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 16, 2023 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification

DESCRIPTION OF SECURITIES

Exhibit 4.1 DESCRIPTION OF SECURITIES The following is a summary of the terms of our securities. This summary does not purport to be complete, nor does it represent all information which you might find to be important for understanding our capital stock. This summary is subject to, and qualified in its entirety by reference to, our amended and restated certificate of incorporation and bylaws. Refe

DTM / DT Midstream, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0767-dtmidstreaminc.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 3)* Name of issuer: DT Midstream Inc. Title of Class of Securities: Common Stock CUSIP Number: 23345M107 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate th

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 3, 2023 (February 1, 2023) Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employ

DTM / DT Midstream, Inc. / BlackRock Inc. Passive Investment

SC 13G/A 1 us23345m1071012623.txt us23345m1071012623.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 1) E.ON N - (Name of Issuer) Common Stock - (Title of Class of Securities) 23345M107 - (CUSIP Number) December 31, 2022 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designat

DTM / DT Midstream, Inc. / BlackRock Inc. Passive Investment

SC 13G 1 us23345m1071012023.txt us23345m1071012023.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: ) E.ON N - (Name of Issuer) Common Stock - (Title of Class of Securities) 23345M107 - (CUSIP Number) December 31, 2022 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate t

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 5, 2022 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification N

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NEWS RELEASE DT Midstream Announces Quarterly Dividend DETROIT, Dec. 5, 2022 ? The Board of Directors of DT Midstream, Inc. (NYSE: DTM) has declared a $0.64 per share dividend on its common stock payable Jan. 15, 2023 to shareholders of record at the close of business Dec. 19, 2022. # # # About DT Midstream DT Midstream (NYSE: DTM) is an owner, operator and developer of natural gas interstate and

PREMIER NATURAL GAS MIDSTREAM COMPANY NOVEMBER 2022 DT Midstream

PREMIER NATURAL GAS MIDSTREAM COMPANY NOVEMBER 2022 DT Midstream Safe Harbor Statement This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute “forward-looking statements” under the securities laws.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 21, 2022 Commission File

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 21, 2022 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification

RBC CAPITAL MARKETS MIDSTREAM AND ENERGY INFRASTRUCTURE CONFERENCE NOVEMBER 16, 2022 DT Midstream

RBC CAPITAL MARKETS MIDSTREAM AND ENERGY INFRASTRUCTURE CONFERENCE NOVEMBER 16, 2022 DT Midstream Safe Harbor Statement This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute ?forward-looking statements? under the securities laws.

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 15, 2022 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended September 30, 2022 ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended September 30, 2022 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40392 DT Midstream, Inc. Delaware 38-2663964 (State or o

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 28, 2022 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification N

THIRD QUARTER 2022 EARNINGS CALL OCTOBER 28, 2022 DT Midstream

THIRD QUARTER 2022 EARNINGS CALL OCTOBER 28, 2022 DT Midstream Safe Harbor Statement This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute "forward looking statements" under the securities laws.

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NEWS RELEASE DT Midstream Reports Strong Third Quarter 2022 Results; Raises Adjusted EBITDA Guidance ? Announces Phase 3 expansion of Haynesville system ? Increases 2022 Adjusted EBITDA guidance to $810 to $825 million ? Raises 2023 Adjusted EBITDA early outlook to $865 to $905 million DETROIT, Oct.

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 19, 2022 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification N

First Incremental Revolving Facility Amendment and Amendment No. 1 to Credit Agreement and Collateral Agreement, by and among DT Midstream, Inc., the lenders and letter of credit issuers party thereto and Barclays Bank PLC, as administrative agent and collateral agent, dated as of October 19, 2022.

Exhibit 10.1 FIRST INCREMENTAL REVOLVING FACILITY AMENDMENT AND AMENDMENT NO. 1 TO CREDIT AGREEMENT AND COLLATERAL AGREEMENT THIS FIRST INCREMENTAL REVOLVING FACILITY AMENDMENT AND AMENDMENT NO. 1 TO CREDIT AGREEMENT AND COLLATERAL AGREEMENT (this ?Amendment?) dated as of October 19, 2022, is by and among DT Midstream, Inc., a Delaware corporation (the ?Borrower?), BARCLAYS BANK PLC, as administra

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DT Midstream Closes on Purchase of Additional Ownership in Millennium Pipeline DETROIT, Oct.

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 7, 2022 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No

SEPTEMBER 30, 2022 WOLFE RESEARCH UTILITIES, MIDSTREAM & CLEAN ENERGY CONFERENCE

SEPTEMBER 30, 2022 WOLFE RESEARCH UTILITIES, MIDSTREAM & CLEAN ENERGY CONFERENCE Safe Harbor Statement 2 New slide This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute ?fo rward - looking statements? under the securities laws.

# # #

DT Midstream Increases Ownership in Millennium Pipeline ? Premier, fully contracted pipeline with creditworthy customers ? Immediately accretive transaction ? Consistent with core investment thesis DETROIT, Sept.

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 29, 2022 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification

LETTER

United States securities and exchange commission logo September 16, 2022 Jeffrey Jewell Chief Financial and Accounting Officer DT Midstream, Inc.

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DT Midstream, Inc. 500 Woodward Ave. Suite 2900 Detroit, MI 48226-1279 August 26, 2022 VIA ELECTRONIC TRANSMISSION (EDGAR) Karl Hiller Branch Chief Division of Corporation Finance Office of Energy & Transportation Securities and Exchange Commission Washington, D.C. 20549 Re: DT Midstream, Inc. Form 10-K for the Fiscal Year Ended December 31, 2021 Filed February 25, 2022 File No. 001-40392 Dear Mr.

Amendment to Registrant's Code of Ethics, or Waiver of a Provision of the Code of Ethics

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 5, 2022 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.

Second Quarter 2022 Earnings Call August 3, 2022 DT Midstream

Second Quarter 2022 Earnings Call August 3, 2022 DT Midstream Safe Harbor Statement This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute "forward-looking statements" under the securities laws.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended June 30, 2022 ☐ TRANSITION REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended June 30, 2022 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2022 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.

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NEWS RELEASE DT Midstream Reports Strong Second Quarter 2022 Results; Announces Next Phase Haynesville Expansion ? Announces Phase 2 expansion of Haynesville system ? Reaffirms 2022 adjusted EBITDA guidance of $770 to $810 million ? Reaffirms 2023 adjusted EBITDA early outlook of $810 to $850 million ? Declares quarterly dividend of $0.

LETTER

United States securities and exchange commission logo August 2, 2022 Jeffrey Jewell Chief Financial and Accounting Officer DT Midstream, Inc.

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 9, 2022 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.) R

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 6, 2022 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.) R

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NEWS RELEASE DT Midstream Announces Quarterly Dividend DETROIT, May 6, 2022 ? The Board of Directors of DT Midstream, Inc.

First Quarter 2022 earnings call May 5, 2022 DT Midstream

First Quarter 2022 earnings call May 5, 2022 DT Midstream Safe Harbor Statement This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute ?forward-looking statements? under the securities laws.

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 5, 2022 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.) R

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended March 31, 2022 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended March 31, 2022 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other

# # #

DT Midstream Reports First Quarter 2022 Results, Continues Strong Commercial Progress ? Announces agreements to expand the Appalachia Gathering System ? Reaffirms 2022 adjusted EBITDA guidance of $770 to $810 million ? Reaffirms 2023 adjusted EBITDA early outlook of $810 to $850 million DETROIT, May 5, 2022 ? DT Midstream, Inc.

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 11, 2022 DT Midstream, Inc. Commission File Number: 1-40392 Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.

DT MIDSTREAM, INC., as Issuer, AND EACH OF THE GUARANTORS PARTY HERETO 4.300% SENIOR SECURED NOTES DUE 2032 Dated as of April 11, 2022 U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Trustee and Notes Collateral Agent TABLE OF CONTENTS

Exhibit 4.1 Execution Version DT MIDSTREAM, INC., as Issuer, AND EACH OF THE GUARANTORS PARTY HERETO 4.300% SENIOR SECURED NOTES DUE 2032 INDENTURE Dated as of April 11, 2022 U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Trustee and Notes Collateral Agent TABLE OF CONTENTS Page ARTICLE 1 DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.01. Definitions 1 Section 1.02. Other Definitions 22 S

PARI PASSU INTERCREDITOR AGREEMENT dated as of April 11, 2022 DT MIDSTREAM, INC. THE OTHER GRANTORS FROM TIME TO TIME PARTY HERETO, BARCLAYS BANK PLC, as Credit Agreement Agent, U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Notes Collateral Agent

Exhibit 4.2 Execution Version PARI PASSU INTERCREDITOR AGREEMENT dated as of April 11, 2022 among DT MIDSTREAM, INC. THE OTHER GRANTORS FROM TIME TO TIME PARTY HERETO, BARCLAYS BANK PLC, as Credit Agreement Agent, U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Notes Collateral Agent, and each Additional Priority Debt Representative from time to time party hereto TABLE OF CONTENTS Page ARTICLE I

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Exhibit 99.1 NEWS RELEASE DT MIDSTREAM ANNOUNCES CLOSING OF PRIVATE OFFERING OF SENIOR SECURED NOTES DETROIT, April 11, 2022 ? DT Midstream, Inc. (?DT Midstream? or the ?Company?) (NYSE: DTM) today announced that it has closed the previously announced offering (the ?Offering?) of $600,000,000 of 4.300% Senior Secured Notes due 2032 (the ?Notes?). The Notes were issued by DT Midstream, guaranteed b

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 30, 2022 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.

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Exhibit 99.1 NEWS RELEASE DT MIDSTREAM ANNOUNCES PRICING OF PRIVATE OFFERING OF SENIOR SECURED NOTES DETROIT, March 30, 2022 ? DT Midstream, Inc. (?DT Midstream? or the ?Company?) (NYSE: DTM) today announced that it has priced an offering (the ?Offering?) of $600,000,000 of 4.300% Senior Secured Notes due 2032 (the ?Notes?). The Notes will be issued by DT Midstream, guaranteed by certain of DT Mid

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.??) ??Filed by the Registrant ???Filed by a Party other than the Registrant Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Def

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.??) ??Filed by the Registrant ? ? ???Filed by a Party other than the Registrant Check the appropriate box: ?? ? ? Preliminary Proxy Statement ?? ? ? Confidential, For Use of the Commission Only (as perm

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 10, 2022 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.

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NEWS RELEASE DT MIDSTREAM ANNOUNCES STOCK REPURCHASE DETROIT, Feb. 28, 2022 ? DT Midstream, Inc. (NYSE: DTM) today announced that its Board of Directors has approved the repurchase of up to an aggregate of one hundred twenty five thousand (125,000) shares of its common stock to offset an equivalent amount of common shares issued under its 2022 stock-based compensation program. The repurchases will

Company Presentation February 2022

Company Presentation February 2022 Safe Harbor Statement This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute "forward-looking statements" under the securities laws.

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2022 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification

SUBSIDIARIES OF DT MIDSTREAM, INC.

Exhibit 21.1 SUBSIDIARIES OF DT MIDSTREAM, INC. DT Midstream?s principal subsidiaries as of December 31, 2021 are listed below. All other subsidiaries, if considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary. Subsidiary State of Incorporation 1 DTM Louisiana Gathering, LLC Delaware 2 DTM Nexus, LLC Delaware 3 Stonewall Gas Gathering, LLC Delaware 4 Susq

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 25, 2022 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other juri

YEAR END 2021 EARNINGS CALL FEBRUARY 25, 2022 DT Midstream

YEAR END 2021 EARNINGS CALL FEBRUARY 25, 2022 DT Midstream Safe Harbor Statement This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute ?forward-looking statements? under the securities laws.

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NEWS RELEASE DT MIDSTREAM ANNOUNCES STRONG 2021 RESULTS AND PROVIDES 2022 AND 2023 GUIDANCE ? Delivered 2021 results exceeding the high end of guidance ? Increased 2022 adjusted EBITDA guidance ? Provided 2023 adjusted EBITDA early outlook ? Increased dividend by 7% DETROIT, Feb.

DTM / DT Midstream, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0020-dtmidstreaminc.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 2)* Name of issuer: DT Midstream Inc. Title of Class of Securities: Common Stock CUSIP Number: 23345M107 Date of Event Which Requires Filing of this Statement: January 31, 2022 Check the appropriate box to designate the

DTM / DT Midstream, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 1)* Name of issuer: DT Midstream Inc. Title of Class of Securities: Common Stock CUSIP Number: 23345M107 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ R

DTM / DT Midstream, Inc. / BlackRock Inc. Passive Investment

us23345m1071012722.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 2) DT MIDSTREAM INC - (Name of Issuer) Common Stock - (Title of Class of Securities) 23345M107 - (CUSIP Number) December 31, 2021 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to w

DTM / DT Midstream, Inc. / BlackRock Inc. Passive Investment

us23345m1071012622.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 1) DT MIDSTREAM INC - (Name of Issuer) Common Stock - (Title of Class of Securities) 23345M107 - (CUSIP Number) December 31, 2021 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to w

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NEWS RELEASE DT Midstream Announces Quarterly Dividend DETROIT, Dec. 9, 2021 ? The Board of Directors of DT Midstream, Inc. (NYSE: DTM) has declared a $0.60 per share dividend on its common stock payable Jan. 15, 2022 to shareholders of record at the close of business Dec. 20, 2021. ?DT Midstream continues its strong performance as a standalone public C-corp and expects to maintain a durable and g

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 9, 2021 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification N

DTM / DT Midstream, Inc. / VANGUARD GROUP INC - SCHEDULE 13G Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 Name of issuer: DT Midstream Inc. Title of Class of Securities: Common Stock CUSIP Number: 23345M107 Date of Event Which Requires Filing of this Statement: November 30, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13d-1(b) ☐ Rule

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended September 30, 2021 ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended September 30, 2021 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or oth

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 5, 2021 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification N

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NEWS RELEASE DT Midstream Reports Strong Third Quarter 2021 Results ? Raising 2021 adjusted EBITDA, operating earnings and distributable cash flow guidance ? Delivering 10% adjusted EBITDA growth and 12% operating earnings growth from 2020 original guidance ? Executing on investment opportunities that will deliver distinctive future growth ? Discusses industry-first carbon-neutral expansion DETROIT, Nov.

THIRD QUARTER 2021 EARNINGS CALL NOVEMBER 5, 2021 DT Midstream

THIRD QUARTER 2021 EARNINGS CALL NOVEMBER 5, 2021 DT Midstream Safe Harbor Statement 2 This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute ?forward-looking statements? under the securities laws.

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 29, 2021 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification

WOLFE RESEARCH UTILITIES, MIDSTREAM & CLEAN ENERGY CONFERENCE SEPTEMBER 30, 2021

WOLFE RESEARCH UTILITIES, MIDSTREAM & CLEAN ENERGY CONFERENCE SEPTEMBER 30, 2021 Safe Harbor Statement This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute ?forward-looking statements? under the securities laws.

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 17, 2021 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No

CITI ONE - ON - ONE MIDSTREAM / ENERGY INFRASTRUCTURE CONFERENCE AUGUST 18 - 19, 2021

CITI ONE - ON - ONE MIDSTREAM / ENERGY INFRASTRUCTURE CONFERENCE AUGUST 18 - 19, 2021 Safe Harbor Statement 2 This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute ?forward - looking statements? under the securities laws.

DTM / DT Midstream, Inc. / BlackRock Inc. Passive Investment

us23345m1071080921.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: ) DT MIDSTREAM INC - (Name of Issuer) Common Stock - (Title of Class of Securities) 23345M107 - (CUSIP Number) July 31, 2021 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended June 30, 2021 ☐ TRANSITION REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended June 30, 2021 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other ju

Safe Harbor Statement 2 This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute “forward-looking statements” under the securities laws. These forward-looking statements are intended

EX-99.2 3 ss417465ex9902.htm SLIDE PRESENTATION OF DT MIDSTREAM EXHIBIT 99.2 SECOND QUARTER 2021 EARNINGS CALL AUGUST 6, 2021 EXHIBIT 99.2 DT Midstream Safe Harbor Statement 2 This presentation contains statements which, to the extent they are not statements of historical or present fact, constitute “forward-looking statements” under the securities laws. These forward-looking statements are intend

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EXHIBIT 99.1 NEWS RELEASE DT Midstream Reports Strong Second Quarter 2021 Results ? Reaffirms 2021 guidance with bias to high end of range ? Announces inaugural dividend of $0.60 per share ? Completed successful spinoff from DTE Energy ? Solidly positioned DT Midstream as a premier independent midstream company DETROIT, Aug. 6, 2021 ? DT Midstream, Inc. (NYSE: DTM) today announced second quarter 2

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 6, 2021 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.

Power of Attorney

Exhibit 24.1 EXECUTION VERSION DT MIDSTREAM, INC. DIRECTORS? POWER OF ATTORNEY KNOW ALL BY THESE PRESENTS: That each of the undersigned does hereby severally make, constitute and appoint Jeffrey Jewell, Wendy Ellis, Edward J. Solomon and Daniel Wood, and each of them, his or her true and lawful attorneys-in-fact to sign and execute for him or her and on his or her behalf, as a director of DT Midst

Form of Severance Agreement

Exhibit 10.5 SEVERANCE AGREEMENT This Severance Agreement (?Agreement?) is entered into by and between DT Midstream, Inc., a Delaware corporation and its current and former officers, directors, employees, agents, investors, attorneys, shareholders, administrators, affiliates, divisions, subsidiaries, predecessor and successor corporations and assigns (the ?Company?), and NAME (?Executive?). WHEREA

Transition Services Agreement, dated June 25, 2021, between DTE Energy Company and DT Midstream, Inc.

Exhibit 10.1 EXECUTION VERSION TRANSITION SERVICES AGREEMENT by and between DTE ENERGY COMPANY and DT MIDSTREAM, INC. Dated as of June 25, 2021 TABLE OF CONTENTS Page ARTICLE I Definitions SECTION 1.01. Definitions 1 ARTICLE II Services SECTION 2.01. Provision of Services 4 SECTION 2.02. Service Managers; Contacts 4 SECTION 2.03. Personnel; Sub-Contractors 5 SECTION 2.04. Standard of Performance 5

Separation and Distribution Agreement, dated June 25, 2021, between DTE Energy Company and DT Midstream, Inc.

Exhibit 2.1 EXECUTION VERSION SEPARATION AND DISTRIBUTION AGREEMENT by and between DTE ENERGY COMPANY and DT MIDSTREAM, INC. Dated as of June 25, 2021 TABLE OF CONTENTS Page ARTICLE I Definitions SECTION 1.01. Definitions 1 ARTICLE II The Separation SECTION 2.01. Transfer of Assets and Assumption of Liabilities 15 SECTION 2.02. Certain Matters Governed Exclusively by Ancillary Agreements 18 SECTIO

As filed with the Securities and Exchange Commission on July 1, 2021

As filed with the Securities and Exchange Commission on July 1, 2021 Registration No.

Amended and Restated Bylaws of DT Midstream, Inc., effective July 1, 2021

Exhibit 3.2 EXECUTION VERSION AMENDED AND RESTATED BYLAWS OF DT MIDSTREAM, INC. (hereinafter called the ?Corporation?) ARTICLE I MEETINGS OF STOCKHOLDERS SECTION 1.01. Place of Meetings. Meetings of the stockholders of the Corporation for the election of directors or for any other purpose shall be held at such time and place, either within or without the State of Delaware, as shall be designated f

Tax Matters Agreement, dated June 25, 2021, between DTE Energy Company and DT Midstream, Inc.

Exhibit 10.2 EXECUTION VERSION TAX MATTERS AGREEMENT by and between DTE ENERGY COMPANY and DT MIDSTREAM, INC. Dated as of June 25, 2021 TABLE OF CONTENTS Page ARTICLE I Definitions SECTION 1.01. Definition of Terms 1 ARTICLE II Allocation of Tax Liabilities and Tax Benefits SECTION 2.01. DTE Indemnification of Spinco 6 SECTION 2.02. Spinco Indemnification of DTE 6 SECTION 2.03. Refunds, Credits an

Employee Matters Agreement, dated June 25, 2021, between DTE Energy Company and DT Midstream, Inc.

Exhibit 10.3 EXECUTION VERSION EMPLOYEE MATTERS AGREEMENT by and between DTE ENERGY COMPANY and DT MIDSTREAM, INC. Dated as of June 25, 2021 TABLE OF CONTENTS Page ARTICLE I DEFINITIONS SECTION 1.01. Definitions ?????????????????????????????????????.????????. 1 SECTION 1.02. Interpretation???????????????????????????????????.??????.???.. 11 ARTICLE II ASSIGNMENT OF EMPLOYEES SECTION 2.01. Transferr

DT Midstream Spin-Off from DTE Energy is Complete Positions DT Midstream as an Independent, Publicly Traded Company Trading on the NYSE Under Ticker Symbol “DTM”

Exhibit 99.1 NEWS RELEASE DT Midstream Spin-Off from DTE Energy is Complete Positions DT Midstream as an Independent, Publicly Traded Company Trading on the NYSE Under Ticker Symbol ?DTM? DETROIT, July 1, 2021 ? DT Midstream, Inc. [www.dtmidstream.com] (NYSE: DTM), a premier natural gas pipeline, storage and gathering provider, today debuted as an independent, publicly traded company after success

Amended and Restated Certificate of Incorporation of DT Midstream, Inc., effective July 1, 2021

Exhibit 3.1 EXECUTION VERSION AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF DT MIDSTREAM, INC. DT Midstream, Inc., a corporation organized and existing under the laws of the State of Delaware (the ?Corporation?), hereby certifies as follows: 1. The name of the Corporation is DT Midstream, Inc. The Corporation?s original Certificate of Incorporation was filed with the office of the Secretary

DT Midstream, Inc. Annual Incentive Plan

Exhibit 10.6 DT MIDSTREAM, INC. Annual Incentive Plan Purpose DT Midstream, Inc. (?Midstream?) has established the DT Midstream, Inc. Annual Incentive Plan (?Plan?) for the purpose of providing incentives for eligible employees of Midstream to contribute to the success of Midstream by achieving pre-established financial and strategic goals for Midstream and individual performance goals for the emp

Form of Change-In-Control Agreement

Exhibit 10.4 CHANGE-IN-CONTROL SEVERANCE AGREEMENT This CHANGE-IN-CONTROL SEVERANCE AGREEMENT (the ?Agreement?) is entered into as of July 1, 2021 (the ?Effective Date?) between DT Midstream, Inc., a Delaware corporation (the ?Company?), and (the ?Executive?). RECITALS The Executive is an executive or a key employee of the Company or one or more of its Subsidiaries and has made and is expected to

Regulation FD Disclosure, Changes in Control of Registrant, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Entry into a Material Definitive Agreement, Material Modification to Rights of Security Holders, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 1, 2021 (June 25, 2021) Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Ide

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 17, 2021 (June 16, 2021) Commission File Number: 1-40392 DT Midstream, Inc. (Exact name of registrant as specified in its charter) Delaware 38-2663964 (State or other jurisdictio

Indenture dated as of June 9, 2021 among DT Midstream, Inc., the Guarantors party thereto and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 of the Registrant’s Current Report on Form 8-K, filed with the Commission on June 9, 2021)

Exhibit 4.1 Execution Version DT MIDSTREAM, INC. AND EACH OF THE GUARANTORS PARTY HERETO 4.125% SENIOR NOTES DUE 2029 4.375% SENIOR NOTES DUE 2031 INDENTURE Dated as of June 9, 2021 U.S. BANK NATIONAL ASSOCIATION, as Trustee TABLE OF CONTENTS Page ARTICLE 1 DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.01. Definitions 1 Section 1.02. Other Definitions 30 Section 1.03. Rules of Construction

Credit Agreement, dated as of June 10, 2021 by and among the Company, as borrower, the Lenders party thereto, the L/C Issuers party thereto, and Barclays Bank PLC, as Administrative Agent and Collateral Agent.

Exhibit 10.1 Execution Version CREDIT AGREEMENT Dated as of June 10, 2021 among DT MIDSTREAM, INC., as Borrower, THE LENDERS PARTY HERETO, THE L/C ISSUERS PARTY HERETO, and BARCLAYS BANK PLC, as Administrative Agent and Collateral Agent BARCLAYS BANK PLC, BOFA SECURITIES, INC., CITIBANK, N.A., JPMORGAN CHASE BANK, N.A. and WELLS FARGO SECURITIES, LLC, as Revolving Facility Joint Lead Arrangers and

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 10, 2021 (June 9, 2021) Commission File Number: 1-40392 DT Midstream, Inc. (Exact name of registrant as specified in its charter) Delaware 38-2663964 (State or other jurisdiction

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 8, 2021 Commission File Number: 1-40392 DT Midstream, Inc. Delaware 38-2663964 (State or other jurisdiction of incorporation or organization) (I.R.S Employer Identification No.)

Safe harbor statement The information contained herein is as of the date of this document. DTE Energy expressly disclaims any current intention to update any forward-looking statements contained in this document as a result of new information or futu

EXHIBIT 99.1 DTE ENERGY SPIN OF DT MIDSTREAM J U N E 9 , 2 0 2 1EXHIBIT 99.1 DTE ENERGY SPIN OF DT MIDSTREAM J U N E 9 , 2 0 2 1 Safe harbor statement The information contained herein is as of the date of this document. DTE Energy expressly disclaims any current intention to update any forward-looking statements contained in this document as a result of new information or future events or developm

INFORMATION STATEMENT DT Midstream, Inc. One Energy Plaza Detroit, Michigan 48226-1279 Common Stock (par value $0.01)

EX-99.1 3 d122988dex991.htm EX-99.1 Table of Contents Exhibit 99.1 INFORMATION STATEMENT DT Midstream, Inc. One Energy Plaza Detroit, Michigan 48226-1279 Common Stock (par value $0.01) We are sending you this Information Statement in connection with DTE Energy Company’s spin-off of its wholly owned subsidiary, DT Midstream, Inc., or “DT Midstream.” To effect the spin-off, DTE Energy Company, or “D

Important Notice Regarding the Availability of Materials

Exhibit 99.2 Important Notice Regarding the Availability of Materials DTE Energy Company You are receiving this communication because you hold securities in DTE Energy Company (?DTE Energy?). DTE Energy has released informational materials regarding its spin-off of its wholly owned subsidiary, DT Midstream, Inc. (?DT Midstream?), that are now available for your review. DTE Energy is not soliciting

Regulation FD Disclosure, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 4, 2021 Commission File Number: 1-40392 DT Midstream, Inc. (Exact name of registrant as specified in its charter) Delaware 38-2663964 (State or other jurisdiction of incorporatio

Certificate of Amendment of Certificate of Incorporation of DT Midstream, Inc., effective June 4, 2021

EX-3.1 2 d122988dex31.htm EX-3.1 Exhibit 3.1 STATE OF DELAWARE CERTIFICATE OF AMENDMENT OF CERTIFICATE OF INCORPORATION The corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware does hereby certify: FIRST: That at a meeting of the Board of Directors of DT Midstream, Inc. resolutions were duly adopted setting forth a proposed amendment of the

ORDER

UNITED STATES OF AMERICA BEFORE THE SECURITIES AND EXCHANGE COMMISSION June 4, 2021 In the Matter of DT Midstream, Inc.

DT Midstream, Inc. One Energy Plaza Detroit, Michigan 48226-1279

DT Midstream, Inc. One Energy Plaza Detroit, Michigan 48226-1279 June 1, 2021 VIA EDGAR Ms. Irene Barberena-Meissner Staff Attorney United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 DT Midstream, Inc. Registration Statement on Form 10 (File No. 001-40392) Dear Ms. Barberena-Meissner: In accordance with Rule 12d1-2 promulgated

NYSE CERTIFICATION

New York Stock Exchange 11 Wall Street New York, NY 10005 June 1, 2021 Chief, Information Technology Securities and Exchange Commission Division of Corporate Finance 100 F Street, NE MS 3040 Washington, DC 20549 To whom it may concern: The New York Stock Exchange certifies its approval for listing and registration of the Common Stock, par value $0.

Purchase Agreement among DT Midstream, Inc., Barclays Capital Inc., as representative of the initial purchasers named therein, and the guarantors party thereto, dated May 25, 2021

EX-10.5 2 d33289dex105.htm EX-10.5 Exhibit 10.5 $2,100,000,000 DT MIDSTREAM, INC. $1,100,000,000 4.125% SENIOR NOTES DUE 2029 $1,000,000,000 4.375% SENIOR NOTES DUE 2031 PURCHASE AGREEMENT May 25, 2021 BARCLAYS CAPITAL INC. As Representative of the several Initial Purchasers named in Schedule I attached hereto c/o Barclays Capital Inc. 745 Seventh Avenue New York, New York 10019 Ladies and Gentlem

Form 10-12B

As filed with the Securities and Exchange Commission on May 26, 2021. File No. 001-40392 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 2 to Form 10 GENERAL FORM FOR REGISTRATION OF SECURITIES Pursuant to Section 12(b) or (g) of The Securities Exchange Act of 1934 DT Midstream, Inc. (Exact name of registrant as specified in its charter) Delaware 38-2663964 (S