Matthew Seinsheimer
Vice President, Investor Relations

11740 Katy Freeway, Energy Tower 3, Houston, Texas 77079

+1 281 260 3665

James Davis
Senior Manager Investor Relations

11740 Katy Freeway, Energy Tower 3,  Houston, Texas 77079

+1 281 260 3665

Transfer Agent

Computershare

P.O. Box 43078, Providence, RI 02940

Toll-Free Number:
1- 866-335-1804
(US, Canada, Puerto Rico)

Toll Number:
1- 781-575-2344
(non-US)