| Individual/Entity | Most Recent Trans. | Shares Owned as of Trans. Date |
|---|
BLAKESTAD ROBERT B.
Officer | Acquisition (Non Open Market)
Sep 15, 2011 | 69,607
Sep 15, 2011 | CLEVENGER JEFFREY G
Officer | Acquisition (Non Open Market)
Dec 14, 2012 | 537,556
Dec 14, 2012 | DANNI JERRY W
Officer | Acquisition (Non Open Market)
Sep 15, 2011 | 74,875
Sep 15, 2011 | FRIEDMAN DEBORAH J
Officer | Acquisition (Non Open Market)
Dec 14, 2012 | 93,600
Dec 14, 2012 | MASON MICHAEL THOMAS
Director | Ownership Statement
Sep 2, 2011 | 4,250
Sep 2, 2011 | REHN WARREN
Officer | Automatic Sale
Feb 13, 2013 | 85,800
Feb 13, 2013 | SENTIENT EXECUTIVE GP III, LTD
Beneficial Owner (10% or more) | Acquisition (Non Open Market)
Oct 7, 2011 | 3,939,790
Oct 7, 2011 | SENTIENT EXECUTIVE GP IV, LTD
Beneficial Owner (10% or more) | Ownership Statement
Oct 7, 2011 | 3,118,150
Oct 7, 2011 | SENTIENT GLOBAL RESOURCES FUND III, LP
Beneficial Owner (10% or more) | Acquisition (Non Open Market)
Oct 7, 2011 | 3,582,746
Oct 7, 2011 | SENTIENT GLOBAL RESOURCES FUND IV, L.P.
Beneficial Owner (10% or more) | Purchase
Sep 19, 2012 | 4,483,944
Sep 19, 2012 | SGRF III PARALLEL I, LP
Other | Acquisition (Non Open Market)
Oct 7, 2011 | 357,044
Oct 7, 2011 | VOGELS ROBERT P
Officer | Acquisition (Non Open Market)
Dec 14, 2012 | 141,331
Dec 14, 2012 |
|
0.58%