Print this page Share this page
Featured Product
Our Future


Corporate Governance

The board has adopted a set of Principles of Corporate Governance to provide guidelines for the company and the board to ensure effective corporate governance. The Principles of Corporate Governance cover topics including, but not limited to, director qualification standards, board and committee composition, director responsibilities, director compensation, director access to management and independent advisors, director orientation and continuing education, succession planning and the annual evaluations of the board and its committees.

The Governance, Responsibility & Technology Committee is responsible for overseeing and reviewing the Principles of Corporate Governance and recommending to the board any changes to the Principles. To view the full text of the Principles of Corporate Governance click here.

Search Investor Relations

Learn More
  • Contact us by phone at 800.742.4455
  • Email us at
  • Contact Shareholders Services by phone at 800.446.2617
  • Contact Shareholders Services outside the U.S. at 781.575.2723
  • Contact Shareholders Services for the hearing impaired at 800.952.9245
Code of Ethics for the Chief Executive Officer and Senior Financial Officers (PDF, 59K)

2016 Proxy Materials

Stock Transfer Agent & Registrar Computershare
P.O. Box 30170
College Station, TX 77842-3170

Shareholder website:

Shareholder online inquiries