| Individual/Entity | Most Recent Trans. | Shares Owned as of Trans. Date |
|---|
AMRON ARTHUR H Director | Acquisition (Non Open Market) Dec 30, 2012 | 12,199 Dec 30, 2012 | BOONE RICHARD A Officer | Acquisition (Non Open Market) Apr 4, 2013 | 16,828 Apr 4, 2013 | COX ANDREW W. Officer | Disposition (Non Open Market) Apr 4, 2013 | 1,048 Apr 4, 2013 | HUNT REFORD CHAD Officer | Acquisition (Non Open Market) Apr 4, 2013 | 1,095 Apr 4, 2013 | LAMBERT DOUGLAS JAMES Director | Acquisition (Non Open Market) Oct 30, 2012 | 6,394 Oct 30, 2012 | MAYMUDES JAY LESLIE Director | Acquisition (Non Open Market) Dec 30, 2012 | 14,568 Dec 30, 2012 | MILLER JOSEPH R. III Officer | Acquisition (Non Open Market) Apr 4, 2012 | 0 Apr 4, 2012 | MORAVEC CHRISTOPHER N Officer | Disposition (Non Open Market) Oct 6, 2011 | 856 Oct 6, 2011 | PLAUMANN MARK LAWRENCE Director | Acquisition (Non Open Market) Dec 30, 2012 | 477 Dec 30, 2012 | RHINO ENERGY HOLDINGS LLC Beneficial Owner (10% or more) | Disposition (Non Open Market) Dec 30, 2012 | 6,010,265 Dec 30, 2012 | RUBIN KENNETH A Director | Acquisition (Non Open Market) Dec 30, 2012 | 8,914 Dec 30, 2012 | TOMPKINS JAMES F. Director | Acquisition (Non Open Market) Oct 30, 2012 | 4,948 Oct 30, 2012 | WALTON CHRIS Officer | Option Exercise Apr 4, 2013 | 1,052 Apr 4, 2013 | WEXFORD CAPITAL LP Director | Disposition (Non Open Market) Mar 30, 2013 | 619,371 Mar 30, 2013 | ZAND MARK D Director | Acquisition (Non Open Market) Dec 30, 2012 | 14,493 Dec 30, 2012 | ZATEZALO DAVID G Officer | Disposition (Non Open Market) Apr 4, 2013 | 82,225 Apr 4, 2013 |
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