Registration Rights Letter Agreement, dated April 13, 2010



 Exhibit 4(m) 

Registration Rights Letter Agreement 

April 13, 2010 

Reference is hereby made to that certain Exchange Agreement, dated April 13, 2010, between the party listed on Exhibit A
attached hereto (“Holder”), on the one hand, and Energy Future Holdings Corp. (the “Company”), Energy Future Competitive Holdings Company (“EFCH”) and Energy Future Intermediate Holding Company LLC
(together with EFCH, the “Guarantors”), on the other hand (the “Exchange Agreement”), pursuant to which the Company will issue to Holder the New Securities in exchange for the Exchange Securities that Holder owned.
Unless otherwise provided, capitalized terms used but not defined herein have the meanings ascribed to them in the Exchange Agreement. 

For purposes of providing Holder and any subsequent transferee of the New Securities the right to receive Exchange Notes or the right to
register the New Securities under the Securities Act, as applicable, the Company and the Guarantors hereby grant the New Securities the same rights afforded to “Securities” (as such term is defined in the Registration Rights Agreement)
under the Registration Rights Agreement; provided, however, that Holder and any subsequent transferee of the New Securities agree to abide by all of the terms and conditions of the Registration Rights Agreement applicable to a holder
of Securities thereunder; and provided, further, that this letter agreement shall not (i) provide Holder or any subsequent transferee of the New Securities with any right to designate its own counsel, managing underwriter or
underwriter pursuant to Sections 3(d)(vi), 3(d)(vii), 4 and 7, as applicable, of the Registration Rights Agreement. For the avoidance of doubt, the parties hereto acknowledge and agree that the New Securities shall be treated as a single class with
the outstanding 10.000% Senior Secured Notes due 2020 of the Company issued pursuant to the Indenture, and this letter agreement shall not extend or otherwise change the time period during which the Company and the Guarantors must cause the Exchange
Registration Statement and the Shelf Registration Statement (as such terms are defined in the Registration Rights Agreement) to become effective pursuant to Section 2(a) and (b), respectively, of the Registration Rights Agreement. 

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 If the foregoing is in accordance with your understanding of our agreement, please sign and
return to us a counterpart hereof, whereupon this Agreement, along with all counterparts, will become a binding agreement among Holder, the Company and Guarantors in accordance with its terms. 

 

			
	Very truly yours,
	
	Energy Future Holdings Corp.
		
	By:	 	 /s/ Anthony R. Horton

	Name:	 	Anthony R. Horton
	Title:	 	Senior Vice President and Treasurer
	
	Energy Future Competitive Holdings Company
		
	By:	 	 /s/ Anthony R. Horton

	Name:	 	Anthony R. Horton
	Title:	 	Treasurer
	
	Energy Future Intermediate Holding Company LLC
		
	By:	 	 /s/ Anthony R. Horton

	Name:	 	Anthony R. Horton
	Title:	 	Senior Vice President and Treasurer


  

 SIGNATURE PAGE TO LETTER
AGREEMENT 








 Confirmed and agreed to as of the date first above written: 

Holder 
  

			
	By:	 	 /s/ William Walmsley

	Name:	 	 William Walmsley

	Title:	 	 Director


  


 SIGNATURE PAGE TO LETTER
AGREEMENT