1 EXHIBIT 10.3 APPROVAL BY DIRECTORS OF BANCWEST FINANCIAL CORPORATION AND BANK OF THE WEST The undersigned, all of the members of the Board of Directors of Bancwest Financial Corporation ("Bancwest") and its wholly owned subsidiary, Bank of the West, approve the Agreement and Plan of Merger, dated November 10, 1998 (the "Plan"), between United Security Bancorporation, Bancwest and Bank of the West and, except as otherwise required by applicable law, including, without limitation, their fiduciary duties to Bancwest's shareholders, agree to (a) vote their shares in favor of the transactions contemplated by the Plan, (b) recommend to the shareholders of the Bank that they approve the Plan, and (c) refrain from any actions or omissions inconsistent with such transactions or recommendation. This Approval may be executed in one or more facsimile counterparts, each of which shall be deemed an original, but all of which taken together will constitute one and the same document. - ----------------------------------- ----------------------------------------- Harold Cochran Mark Graves - ----------------------------------- ----------------------------------------- Wes Colley Allen Ketelson - ----------------------------------- ----------------------------------------- David Frame Norm McKibben