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 7, 2015

Energy Future Holdings Corp.

(Exact name of registrant as specified in its charter)

Energy Future Intermediate Holding Company LLC

(Exact name of registrant as specified in its charter)

Energy Future Competitive Holdings Company LLC

(Exact name of registrant as specified in its charter)

Energy Plaza, 1601 Bryan Street, Dallas, Texas 75201

(Address of principal executive offices, including zip code)

214-812-4600

(Registrants’ telephone number, including Area Code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrants under any of the following provisions (see General Instruction A.2. below):

Background Information

On April 29, 2014, Energy Future Holdings Corp. (“EFH Corp.”) and the substantial majority of its direct and indirect subsidiaries, including Energy Future Intermediate Holding Company LLC (“EFIH”), Energy Future Competitive Holdings Company LLC (“EFCH”) and Texas Competitive Electric Holdings Company LLC (“TCEH”), but excluding Oncor Electric Delivery Holdings Company LLC (“Oncor”) and its direct and indirect subsidiaries, filed voluntary petitions for relief (the “Chapter 11 Cases”) under Chapter 11 of the United States Bankruptcy Code (the “Bankruptcy Code”) in the United States Bankruptcy Court for the District of Delaware (the “Bankruptcy Court”). During the pendency of the Chapter 11 Cases, EFH Corp. and its direct and indirect subsidiaries that are included in the Chapter 11 Cases (collectively, the “Debtors”) are operating their businesses as debtors-in-possession under the jurisdiction of the Bankruptcy Court and in accordance with the applicable provisions of the Bankruptcy Code.

Reference is made to the Current Report on Form 8-K filed with the Securities and Exchange Commission (the “SEC”) on September 17, 2015 by each of EFH Corp., EFIH and EFCH (the “September 17, 2015 8-K”) relating to, among other matters, the amended and restated settlement agreement, dated as of September 11, 2015 (the “September Settlement Agreement”), among the Debtors, the sponsor equity owners of EFH Corp. (the “Sponsors”), certain settling TCEH first lien creditors, certain settling TCEH second lien creditors, certain settling TCEH unsecured creditors and the official committee of unsecured creditors of TCEH (collectively, the “Settling Parties”) in order to compromise and settle certain claims among such parties, on the terms described in the September 17, 2015 8-K.

On December 2, 2015, the Settling Parties entered into an amended and restated settlement agreement (the “Amended & Restated Settlement Agreement”), which effected, among other matters, the settlement of certain disputes with the official committee of unsecured creditors of EFH Corp., EFIH, EFIH Finance Inc. and EECI, Inc. by providing for the reduction in the amount of the TCEH Cash Payment (as defined in the Amended & Restated Settlement Agreement) to account for payment of certain creditors’ claims under certain circumstances.

On December 7, 2015, the Bankruptcy Court entered an order (the “Settlement Agreement Order”) approving the Amended & Restated Settlement Agreement and authorizing the Debtors to take any and all actions reasonably necessary to consummate, and to perform the obligations contemplated by, the Amended & Restated Settlement Agreement.

The above description of the Amended & Restated Settlement Agreement is qualified in its entirety by reference to the Amended & Restated Settlement Agreement, which is attached as Exhibit 10(a) to this Current Report on Form 8-K and is also available at www.efhcaseinfo.com. Information on or connected to this website does not constitute part of this Current Report on Form 8-K.

Confirmation Order for Plan of Reorganization

On December 9, 2015, the Bankruptcy Court entered an amended order (the “Confirmation Order”), attached hereto as
Exhibit 2(a), confirming the Debtors’ Sixth Amended Joint Plan of Reorganization Pursuant to Chapter 11 of the Bankruptcy Code (the “Plan”) effective as of December 7, 2015. The Plan, attached hereto as Exhibit 2(b), incorporates by reference certain documents filed with the Bankruptcy Court as part of the “Plan Supplement,” as the same has been amended from time to time prior to confirmation of the Plan and may be further amended prior to the effective date of the Plan (the “Effective Date”).

The Plan, all documents included in the Plan Supplement, and the Confirmation Order are available free of charge at www.efhcaseinfo.com. Information on or connected to this website does not constitute part of this Current Report on Form 8-K.

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Restructuring Transactions under the Plan

The following is a summary of certain provisions of the confirmed Plan and is not intended to be a complete description of the Plan. The following summary is qualified in its entirety by reference to the full text of the Plan (including the Plan Supplement) and the Confirmation Order. The Plan and the Confirmation Order are incorporated by reference into this Item 1.03. Capitalized terms used but not defined in this report on Form 8-K shall have the meanings given to them in the Plan.

The Plan effectuates the Debtors’ chapter 11 restructuring, among other things, in the following manner:

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The Plan will become effective and the Debtors will emerge from Chapter 11, if and when, certain conditions (including the receipt of certain regulatory approvals) set forth in the Plan are satisfied or waived. The legal names under which Reorganized TCEH and New EFH will operate following the Effective Date have not yet been determined.

Securities Expected to be Issued under the Plan

On the Effective Date, 450,000,000 shares of common stock of Reorganized TCEH (“Reorganized TCEH Common Stock”) are expected to be issued and outstanding, subject to dilution only by shares of Reorganized TCEH Common Stock issuable under a management incentive plan expected to be established by Reorganized TCEH. Also on the Effective Date, Reorganized TCEH PrefCo is expected to issue 100% of the Reorganized TCEH PrefCo Preferred Shares to Reorganized TCEH LLC (or a direct or indirect subsidiary), and Reorganized TCEH LLC (or a direct or indirect subsidiary), pursuant to a prearranged and binding agreement, will in turn sell the Reorganized TCEH PrefCo Preferred Shares to third party investors in exchange for cash.

On the Effective Date, (i) the New EFH Common Stock will be issued as part of the Merger and (ii) the Reorganized EFH Common Stock will be issued to TCEH second lien creditors, TCEH unsecured creditors and Reorganized TCEH, which shares will be converted into a number of shares of New EFH Common Stock equal to 2% of the New EFH Common Stock, after accounting for dilution on account of the Merger and Rights Offering.

Certain Information Regarding Assets and Liabilities of EFH Corp., EFIH and EFCH

Information regarding the assets and liabilities of EFH Corp., EFIH and EFCH as of the most recent practicable date is hereby incorporated by reference from their respective quarterly reports on Form 10-Q for the fiscal quarter ended September 30, 2015, each filed with the SEC on November 3, 2015.

Cautionary Note Regarding Forward-Looking Statements

This Current Report on Form 8-K includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, which are subject to risks and uncertainties. All statements, other than statements of historical facts, are forward-looking statements. Readers are cautioned not to place undue reliance on forward-looking statements. Although we believe that in making any such forward-looking statement our expectations are based on reasonable assumptions, any such forward-looking statement involves uncertainties and is qualified in its entirety by reference to the discussion of risk factors under “Risk Factors” and the discussion under

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“Management’s Discussion and Analysis of Financial Condition and Results of Operations” in the Annual Reports on Form 10-K and Quarterly Reports on Form 10-Q filed by each of EFH Corp., EFIH and EFCH and the following important factors, among others, that could cause actual results to differ materially from those projected in such forward-looking statements:

Any forward-looking statement speaks only at the date on which it is made, and except as may be required by law, we undertake no obligation to update any forward-looking statement to reflect events or circumstances after the date on which it is made or to reflect the occurrence of unanticipated events. New factors may emerge from time to time, and it is not possible for us to predict all of them; nor can we assess the impact of each such factor or the extent to which any factor, or combination of factors, may cause results to differ materially from those contained in any forward-looking statement. As such, you should not unduly rely on such forward-looking statements.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, each registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Dated: December 11, 2015