Exhibit B JOINT FILING AGREEMENTJoint Filing Agreement • February 14th, 2006 • Argonaut Group Inc • Fire, marine & casualty insurance
The undersigned hereby agree that the statement on Schedule 13G filed herewith and any amendments thereto, relating to the common stock, $0.10 par value, of Argonaut Group, Inc., is, or will be, filed jointly with the Securities and Exchange Commission pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, on behalf of each such person.
