13G Filing: Vertex One Asset Management and Bonanza Creek Energy, Inc. (BCEI)

EXHIBIT B

Power of Attorney

The undersigned hereby make, constitute and appoint Martin Lang, acting individually, with full power of substitution, the true and lawful attorney-in-fact for the undersigned, in the undersigneds name, place and stead and on the undersigneds behalf, to complete, execute and file with the United States Securities and Exchange Commission (the Commission), a statement on Schedule 13G with respect to the securities of Bonanza Creek Energy, Inc., a Delaware corporation, and any and all amendments thereto pursuant to Section 13(d) of the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder, and any other forms, certificates, documents or instruments (including a Joint Filing Agreement) that the attorneys-in-fact (or either of them) deem(s) necessary or appropriate in order to enable the undersigned to comply with the requirements of said Section 13(d) and said rules and regulations.

This Power of Attorney shall remain in effect for a period of two years from the date hereof or until such earlier date as a written revocation thereof is filed with the Commission.

IN WITNESS WHEREOF, the undersigned hereby execute this Power of Attorney as of the 29^th day of January, 2016.

John Thiessen

By:

/s/ John Thiessen

Vertex One Asset Management, Inc.

By:

/s/ John Thiessen

Name:

John Thiessen

Title:

Director and Portfolio Manager