Labor Union Contracts

12 Months Ended

Dec. 31, 2017

Labor Union Contracts

Concentration Risk Disclosure

Labor Union Contracts

As of December 31, 2017, approximately 28% of our employees were members of various bargaining units represented by the Communication Workers of America ("CWA") and the International Brotherhood of Electrical Workers ("IBEW"). We believe that relations with our employees continue to be generally good. Less than 1,000 of our employees were subject to collective bargaining agreements that expired in 2017 and, as of December 31, 2017, were being renegotiated. In mid-2017, we reached new agreements with the CWA District 7 and IBEW Local 206, which represented at December 31, 2017 approximately 10,000, or 71%, of our represented employees. The new agreements were effective June 18, 2017 and will expire on March 8, 2020 and include terms substantially similar to those contained in the prior agreements. Approximately 1,000 of our employees are subject to collective bargaining agreements that are scheduled to expire in 2018.