| Filed On | Filing |
|---|---|
| 17 Sep 2015 |
Form 3/A: Stenzel William K, VP, Engineering and Planning
Holds 37,431 shares of Common Stock |
| 24 Mar 2014 |
Form 3/A: Parnell Larry A, Senior Vice President
Holds 1,196.03 shares of Common Stock |
| 02 Feb 2011 |
Form 3/A: Rawlings Stephen Warren, Senior Vice President
Holds 340 shares of Common Stock |
| 11 Apr 2007 |
Form 3/A: Howard Robert William, CFO and Treasurer
Holds 160,272 shares of Common Stock |
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