DTE Energy (DTB) ordered to pay $100M civil penalty in EPA case

Rhea-AI Filing Summary

DTE Energy Company reports that a federal trial court has imposed a $100 million civil penalty on DTE Energy and other defendants in an environmental enforcement case involving its wholly owned subsidiary, EES Coke Battery, LLC. The case centers on alleged violations of non-attainment new source review requirements under the Clean Air Act at a Michigan coke battery facility.

The court also ordered the defendants to seek a permit for installing pollution controls and to establish and fund a community action committee focused on air quality improvement projects. DTE Energy and the other defendants plan to appeal and state they cannot predict the final outcome or any additional financial impact.

Positive

• None.

Negative

• $100 million civil penalty imposed on DTE Energy and related defendants in an environmental enforcement case, alongside mandated pollution controls and community air quality funding obligations, represents a materially adverse legal and financial development.

Insights

Utility regulation and litigation analyst

$100M environmental penalty and mandated controls add legal and cost risk.

The order imposing a $100 million civil penalty on DTE Energy and affiliates is a significant environmental enforcement outcome. It follows an EPA-driven case over non-attainment new source review obligations at the EES Coke Battery facility and a prior summary judgment on liability.

Beyond the monetary penalty, required pollution controls and funding for a community air quality committee introduce additional capital and operating cost obligations. The company states it will appeal and cannot predict the final outcome or further financial impact, so ultimate costs and timing remain dependent on the appellate process and any further court directives.

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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 18, 2026

Commission File Number: 1-11607

DTE Energy Company

Michigan						38-3217752
(State or other jurisdiction of incorporation or organization)						(I.R.S Employer Identification No.)

Registrants address of principal executive offices: One Energy Plaza, Detroit, Michigan 48226-1221

Registrants telephone number, including area code: (313) 235-4000

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class

Trading Symbol(s)

Name of Exchange on which Registered

Common stock, without par value

DTE

New York Stock Exchange

2017 Series E 5.25% Junior Subordinated Debentures due 2077

DTW

New York Stock Exchange

2020 Series G 4.375% Junior Subordinated Debentures due 2080

DTB

New York Stock Exchange

2021 Series E 4.375% Junior Subordinated Debentures due 2081

DTG

New York Stock Exchange

2025 Series H 6.25% Junior Subordinated Debentures due 2085

DTK

New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 under the Securities Act (17 CFR 230.405) or Rule 12b-2 under Exchange Act (17 CFR 240.12b-2).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 8.01. Other Events.

On February 18, 2026, DTE Energy Company ("DTE Energy") issued the following update to its previous disclosure relating to an environmental matter.

On June 1, 2022, the U.S. Department of Justice, on behalf of the U.S. Environmental Protection Agency ("EPA"), filed a complaint against EES Coke Battery, LLC ("EES Coke"), the Michigan coke battery facility that is a wholly-owned subsidiary of DTE Energy, in the U.S. District Court for the Eastern District of Michigan alleging that EES Coke failed to comply with non-attainment new source review requirements under the Clean Air Act. In November 2022, the Sierra Club and City of River Rouge were granted intervention. On May 20, 2024, the court granted a motion allowing the DOJ to amend their complaint to add EES Coke's parent entities, including DTE Energy, as defendants. The EPA filed a motion for partial summary judgment on liability that was granted by the trial court on August 25, 2025. Trial was held on remedies and parent liability, and concluded on September 29, 2025. On February 17, 2026, the trial court issued an order imposing a $100 million civil penalty on the defendants, including DTE Energy. The court also ordered the defendants to seek a permit for the installation of pollution controls and to establish and fund an action committee for community air quality improvement projects. The defendants will appeal this judgment and cannot predict the final outcome or additional financial impact of this matter.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

Forward-Looking Statements:

This Form 8-K contains forward-looking statements that are subject to various assumptions, risks and uncertainties. It should be read in conjunction with the "Forward-Looking Statements" section in DTE Energy's 2025 Form 10-K (which sections are incorporated by reference herein), and in conjunction with other SEC reports filed by DTE Energy that discuss important factors that could cause DTE Energy's actual results to differ materially. DTE Energy expressly disclaims any current intention to update any forward-looking statements contained in this report as a result of new information or future events or developments.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrants have duly caused this report to be signed on their behalf by the undersigned hereunto duly authorized.

February 18, 2026

DTE Energy Company

(Registrant)

/s/David Ruud

David Ruud

Executive Vice President and Chief Financial Officer

FAQ

What environmental case does DTE Energy (DTB) describe in this report?

DTE Energy describes a federal Clean Air Act enforcement case involving its subsidiary EES Coke Battery, LLC. The U.S. Department of Justice and EPA allege non-attainment new source review violations at a Michigan coke battery facility owned indirectly by DTE Energy.

What financial penalty was imposed on DTE Energy (DTB) in the environmental case?

A federal trial court imposed a $100 million civil penalty on DTE Energy and other defendants. This penalty arises from Clean Air Act claims related to EES Coke Battery, LLC, DTE’s wholly owned subsidiary that operates a Michigan coke battery facility.

What additional remedies did the court order for DTE Energy (DTB) and co-defendants?

The court ordered the defendants to seek a permit to install pollution controls at the coke battery facility and to establish and fund an action committee focused on community air quality improvement projects in the affected area.

How is DTE Energy (DTB) responding to the $100 million judgment?

DTE Energy and the other defendants plan to appeal the trial court’s judgment. The company states it cannot predict the final outcome of the case or any additional financial impact that may result from the ongoing legal process.

How did DTE Energy (DTB) become a defendant in this environmental lawsuit?

The original complaint targeted EES Coke Battery, LLC. On May 20, 2024, the court granted a motion permitting the Department of Justice to amend the complaint to add EES Coke’s parent entities, including DTE Energy, as additional defendants in the case.

What earlier court decisions preceded the penalty against DTE Energy (DTB)?

On August 25, 2025, the trial court granted EPA’s motion for partial summary judgment on liability. A trial on remedies and parent liability concluded on September 29, 2025, leading to the $100 million civil penalty and remedial orders issued on February 17, 2026.

Filing Exhibits & Attachments

4 documents

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT 3.7 KB
• EX-101 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT 18.6 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT 34.4 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT 19.1 KB