| Individual/Entity | Most Recent Trans. | Shares Owned as of Trans. Date | BARTLETT LARRY
Officer | Acquisition (Non Open Market)
18-Jan-08 | 80,583
18-Jan-08 | DUBBERSTEIN MARK
Officer | Sale
19-Mar-09 | 96,429
19-Mar-09 | GRAVES ZACHARY M
Officer | Automatic Sale
31-Mar-09 | 169,731
31-Mar-09 | HARRISON D FRANK
Officer | Automatic Sale
11-Aug-09 | 262,724
11-Aug-09 | HILL GARY C
Director | Sale
13-Nov-09 | 13,740
13-Nov-09 | HOUSE DAVID W
Director | Automatic Purchase
8-Jun-09 | 31,240
8-Jun-09 | HOUSTON DAVID L
Director | Acquisition (Non Open Market)
30-Jan-09 | 26,240
30-Jan-09 | INMOBILIARIA CARSO S A DE C V
Beneficial Owner (10% or more) | Purchase
5-Mar-09 | 4,200,000
5-Mar-09 | SNIPES WILLIAM R
Director | Automatic Sale
12-Nov-09 | 9,740
12-Nov-09 | STARKE STEVEN R
Officer | Automatic Sale
9-Apr-09 | 39,305
9-Apr-09 | WEXFORD CAPITAL LP
Beneficial Owner (10% or more) | Sale
21-Aug-09 | 989,498
21-Aug-09 |
|
1.04% Nasdaq 
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