| Filed On | Filing |
|---|---|
| 08 Mar 2016 |
Form 3: Schindler Troy L., SVP - Operations
Holds 59,446 shares of Common Stock |
| 07 Mar 2016 |
Form 3: Crawford William M, SVP Treasury and Finance
Holds 62,708 shares of Common Stock |
| 07 Mar 2016 |
Form 3: Barrett Terry, SVP Geosciences
Holds 187,257 shares of Common Stock |
| 05 Mar 2015 |
Form 3: Stenzel William K, VP, Engineering and Planning
Holds 43,729 shares of Common Stock |
| 06 Mar 2014 |
Form 3: Parnell Larry A, Senior Vice President
Holds 160,689 shares of Common Stock |
| 06 Aug 2013 |
Form 3: Wonstolen Kenneth A., SVP-General Counsel
Holds 500 shares of Common Stock |
| 02 Jul 2012 |
Form 3: Barth Carin Marcy, Director
Holds 0 shares of Common Stock |
| 01 Dec 2011 |
Form 3: Meyers Kevin Omar, Director
Holds 0 shares of Common Stock |
| 08 Dec 2010 |
Form 3: Rawlings Stephen Warren, Senior Vice President
Holds 250 shares of Common Stock |
| 13 May 2010 |
Form 3: Owens William F, Director
Holds 0 shares of Common Stock |
| 13 Aug 2009 |
Form 3: Segner Edmund P Iii, Director
Holds 0 shares of Common Stock |
| 09 Mar 2009 |
Form 3: Crawford William M, Vice President
Holds 7,718 shares of Common Stock |
| 05 Dec 2008 |
Form 3: Warburg Pincus X Llc, 10% owner and 2 others
Holds 216,000 shares of Common Stock, $0.001 Par Value |
| 11 May 2007 |
Form 3: Mogg Jim W, Director
Holds 0 shares of Common Stock |
| 09 Apr 2007 |
Form 3: Woodall R Scot, Senior VP-Operations
Holds 0 shares of Common Stock |
| 03 Apr 2007 |
Form 3: Howard Robert William, CFO and Treasurer
Holds 160,272 shares of Common Stock |
| 18 Jul 2006 |
Form 3: Jaggers Joseph N, COO and President
Holds 35,765 shares of Common Stock |
| 13 Jul 2006 |
Form 3: Foutch Randy A, Director
Holds 0 shares of Common Stock |
| 25 May 2006 |
Form 3: Macosko David R, VP-Accounting
Holds 4,077 shares of Common Stock |
| 07 Mar 2006 |
Form 3: Finnegan Kevin M, VP-Information Systems
Holds 3,803 shares of Common Stock |
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