Austin
Michael Russell
SVP and General Manager
Pierpont Investor Relations
9606 North Mopac Suite 850
Austin, Texas  78759-5963
512.448.4950
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Houston
A. Pierre Dubois
Vice President
Pierpont Investor Relations
1800 West Loop South Suite 800
Houston, Texas 77027-3210
713.627.2223
Email Pierre
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Dallas
IR General Manager
Pierpont Investor Relations
13760 Noel Road Suite 850
Dallas, Texas 75240-7336
214.217.7300
Email IR General Manager
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