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 4517188 THIRD COURT OF APPEALS AUSTIN, TEXAS 3/16/2015 4:04:14 PM Alfred Herrera* JEFFREY D. KYLE Jim Boyle-Of Counsel* CLERK Felipe Alonso III Jason Wakefield March 16, 2015 FILED IN via e-Filing 3rd COURT OF APPEALS AUSTIN, TEXAS 3/16/2015 4:04:14 PM Jeffrey D. Kyle JEFFREY D. KYLE 816 Congress Ave. Clerk of the Court Clerk P.O. Box 12547 Suite. 1250 Austin, Austin, Texas 78711-2547 Texas 78701 Re: Court of Appeals Number: 03-14-00340-CV 512-474-1492 (p) Trial Court Case Number: D-1-GN-13-001238 512-474-2507 (f) Style: CPS Energy, Time Warner Cable Texas LLC, and Southwestern Bell www.herreraboylelaw.com Telephone Company d/b/a AT&T//Cross-Appellant, Public Utility Commission of Texas v. Appellee, Public Utility Commission of Texas//Cross-Appellee, CPS Energy, Time Warner Cable Texas LLC and Southwestern Bell Telephone Company d/b/a AT&T Dear Mr. Kyle: As lead counsel for Appellant CPS Energy (“CPS Energy”) I am writing in response to the Court’s March 12, 2015 letter regarding oral argument. I will present oral argument on behalf of Appellant CPS Energy. Respectfully submitted, /s/ Alfred R. Herrera Alfred R. Herrera State Bar No. 09529600 aherrera@herreraboylelaw.com cc: Counsel of Record Board Certified in Administrative Law by the Texas Board of Legal Specialization 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 16th day of March, 2015. By: /s/Alfred R. Herrera Alfred R. Herrera LIST OF PARTIES PARTIES AND ATTORNEYS FOR Trial Court Case No. D-1-GN-13-001238 (Consolidated) Third Court of Appeals 03-13-00340-CV Counsel for Public Utility Commission Counsel for CPS Energy: of Texas: Alfred R. Herrera Douglas Fraser Felipe Alonso III Kellie E. Billings-Ray Sean Farrell Office of the Attorney General HERRERA & BOYLE, PLLC P.O. Box 12548, Capitol Station 816 Congress Avenue, Suite 1250 Austin, Texas 78711-02548 Austin, TX 78701 Phone: (512) 463-2012 Phone: (512) 474-1492 Fax: (512) 457-4610 Fax: (512) 474-2507 douglas.fraser@texasattorneygeneral.gov aherrera@herreraboylelaw.com kellie.billings- falonso@herreraboylelaw.com ray@texasattorneygeneral.gov sfarrell@herreraboylelaw.com Counsel for CPS Energy: Counsel for AT&T Texas: Patricia Ann Garcia Escobedo Paul A. Drummond Curt D. Brockmann Natalie L. Hall CPS Energy AT&T Legal Department 145 Navarro 1010 N. St. Mary’s, 14th Floor P.O. Box 1771 San Antonio, Texas 78215 San Antonio, TX 78296 Phone: (210) 351-4830 Phone: (210) 353-5689 Fax: (210) 886-2127 Fax: (210) 353-6832 paul.drummond@att.com paescobedo@cpsenergy.com natalie.hall@att.com cdbrockmann@cpsenergy.com Counsel for AT&T Texas: Counsel for AT&T Texas: Michael T. Sullivan Joseph E. Cosgrove, Jr. 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 joseph.cosgrove.jr@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