CPS Energy, Time Warner Cable Texas LLC, and Southwestern Bell Telephone Company D/B/A AT&T// Public Utility Commission of Texas v. Public Utility Commission of Texas// Cross-Appellee, CPS Energy, Time Warner Cable Texas LLC and Southwestern Bell Telephone Company D/B/A AT&T

ACCEPTED 03-14-00340-CV 4795915 THIRD COURT OF APPEALS AUSTIN, TEXAS 4/7/2015 4:14:09 PM Alfred Herrera* JEFFREY D. KYLE Jim Boyle-Of Counsel* CLERK Felipe Alonso III Jason Wakefield April 7, 2015 via e-Filing RECEIVED IN 3rd COURT OF APPEALS AUSTIN, TEXAS Mr. Jeffrey D. Kyle 4/7/2015 4:14:09 PM Clerk of the Court JEFFREY D. KYLE P.O. Box 12547 Clerk Austin, Texas 78711-2547 816 Congress Ave. Re: Court of Appeals Number: 03-14-00340-CV Suite. 1250 Austin, Trial Court Case Number: D-1-GN-13-001238 Texas 78701 Style: CPS Energy, Time Warner Cable Texas LLC, and Southwestern Bell 512-474-1492 (p) Telephone Company d/b/a AT&T//Cross-Appellant, Public Utility Commission of Texas v. Appellee, Public Utility Commission of 512-474-2507 (f) Texas//Cross-Appellee, CPS Energy, Time Warner Cable Texas www.herreraboylelaw.com LLC and Southwestern Bell Telephone Company d/b/a AT&T Dear Mr. Kyle: I am writing to provide the Court a supplemental response to the Court’s March 12, 2015 letter regarding oral argument. On March 25, 2105, the Court granted the parties’ Unopposed Joint Motion for Additional Time for Oral Argument, extending the total time for all parties’ argument from forty minutes to sixty minutes. The parties have conferred and agreed to the following sequence and allocation of time for oral argument to be held on April 22, 2015 at 1:30 PM, CDT: 60 MIN TOTAL TIME CPS Energy 13 TWC 9 AT&T 9 PUC 18 TWC 3 AT&T 3 CPS Energy 5 60 *Board Certified in Administrative Law 1 of 4 by the Texas Board of Legal Specialization Respectfully submitted, /s/ Alfred R. Herrera Alfred R. Herrera State Bar No. 09529600 aherrera@herreraboylelaw.com xc: Counsel of Record 2 of 4 CERTIFICATE OF SERVICE I hereby certify that a true and correct copy of the foregoing Letter was served upon all parties listed below in accordance with local rules of Travis County, Texas, the Texas Rules of Civil Procedure, and the Texas Rules of Appellate Procedure on this the 7th day of April, 2015. By: /s/Alfred R. Herrera Alfred R. Herrera LIST OF PARTIES PARTIES AND ATTORNEYS FOR CAUSE NO. D-1-GN-13-001238 (CONSOLIDATED) Counsel for Public Utility Commission Counsel for CPS Energy: of Texas: Alfred R. Herrera Douglas Fraser HERRERA & BOYLE, PLLC Megan Neal 816 Congress Avenue, Suite 1250 Office of the Attorney General Austin, TX 78701 P.O. Box 12548, Capitol Station Phone: (512) 474-1492 Austin, Texas 78711-02548 Fax: (512) 474-2507 Phone: (512) 463-2012 aherrera@herreraboylelaw.com Fax: (512) 457-4610 douglas.fraser@texasattorneygeneral.gov megan.neal@texasattorneygeneral.gov Counsel for CPS Energy: Counsel for AT&T Texas: Curt D. Brockmann Paul A. Drummond CPS Energy Natalie L. Hall 145 Navarro AT&T Legal Department P.O. Box 1771 1010 N. St. Mary’s, 14th Floor San Antonio, TX 78296 San Antonio, Texas 78215 Phone: (210) 353-5689 Phone: (210) 351-4830 Fax: (210) 353-6832 Fax: (210) 886-2127 cdbrockmann@cpsenergy.com paul.drummond@att.com natalie.hall@att.com 3 of 4 Counsel for AT&T Texas: Counsel for AT&T Texas: Michael T. Sullivan J. David Tate Mayer Brown LLP Katherine C. Swaller 71 S. Wacker Drive Thomas Ballo Chicago, IL 60606 AT&T Legal Department Phone: (312) 782-0600 816 Congress Avenue, Suite 1100 Fax: (312) 706-8689 Austin, Texas 78701 msullivan@mayerbrown.com Phone: (512) 457-2304 Fax: (512) 870-3420 jon.david.tate@att.com katherine.swaller@att.com thomas.ballo@att.com Counsel for Time Warner Cable Texas Counsel for Time Warner Cable LLC: Texas LLC: Valerie P. Kirk J.D. Thomas Melissa Lorber Paul A. Werner Enoch Kever PLLC Sheppard Mullin Richter & Hampton 600 Congress Avenue, Suite 2800 LLP Austin, Texas 78701 1300 I Street, N.W. Phone: (512) 615-1200 11th Floor East Fax: (512) 615-1198 Washington DC 20005 vkirk@enochkever.com Phone: (202) 218-0000 mlorber@enochkever.com Fax: (202) w218-0020 dthomas@sheppardmullin.com pwerner@sheppardmullin.com 4 of 4