ITEM 5.02. Departures of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers.

On November 16, 2012, Stephen W. Potter, who has served as Senior Vice President of Operations and Corporate Development of the Company since February 2011, resigned to pursue new professional opportunities, effective immediately.

Pursuant to the terms of an Employment Separation Agreement and Release entered into by and between the Company and Mr. Potter on November 20, 2012, a copy of which is attached hereto as Exhibit 10.1, Mr. Potter has agreed, among other things, to remain reasonably available to the Company through May 2013 to assist in a smooth transition of his duties, and the Company has agreed, among other things, to pay Mr. Potter an amount equal to six months base salary.

ITEM 9.01. Financial Statements and Exhibits

(d) Exhibits.

10.1 Employment Separation Agreement and Release dated November 20, 2012 by and between the Registrant and Stephen W. Potter.

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