Cindy B. Taylor Joins AT&T Board of Directors

Dallas, Texas, June 28, 2013

AT&T Inc. (NYSE:T) has appointed Cindy B. Taylor to its board of directors. Ms. Taylor is president, chief executive officer and a director of Oil States International, Inc. (NYSE:OIS). She will serve on the Audit Committee of AT&T’s Board of Directors.

“Cindy is an outstanding executive and will be a terrific addition to our board of directors,” said Randall Stephenson, AT&T chairman and chief executive officer. “Her successful leadership of Oil States and experience and expertise in finance, accounting and international business will be valuable.”

Oil States International, Inc. is a diversified solutions and services provider for the oil and gas industry. Ms. Taylor served as Oil States’ president and chief operating officer from 2006 to 2007 and as its senior vice president-chief financial officer and treasurer from 2000 to 2006. Previously, she worked in public accounting for Ernst & Young and in senior finance positions with other energy industry companies.

Ms. Taylor is also a director of Tidewater Inc. She previously served as a director of Global Industries, Ltd. Ms. Taylor holds a B.B.A in accounting from Texas A&M University and is a Certified Public Accountant.