1 EXHIBIT 99.2 REVOCABLE PROXY ORANGE NATIONAL BANCORP PROXY FOR THE SPECIAL MEETING OF SHAREHOLDERS TO BE HELD AUGUST 25, 1999 I/we hereby nominate, constitute and appoint Gerald R. Holte and Wayne F. Miller and each of them, their attorneys, agents and proxies, with full powers of substitution to each, to attend and act as proxy or proxies at the 1999 Special Meeting of Shareholders of ORANGE NATIONAL BANCORP which will be held at Orange National Bancorp Headquarters, 1201 East Katella Avenue, Orange, California 92867, on August 25, 1999 at 8:00 a.m., and at any and all adjournments thereof, and to vote as I/we have indicated the number of shares which I/we, if personally present, would be entitled to vote. PLEASE SIGN AND DATE ON REVERSE SIDE 2 PURPOSES: 1. MERGER WITH CVB FINANCIAL CORP. FOR AGAINST ABSTAIN 2. OTHER BUSINESS. In their discretion, the Proxies are To approve the Agreement and Plan of [ ] [ ] [ ] authorized to vote upon such other business as may properly Reorganization between Orange National come before the Special Meeting and at any and all Bancorp and CVB Financial Corp. Under adjournments thereof. IF ANY OTHER MATTER IS PRESENTED, this merger agreement, Orange National YOUR PROXY WILL VOTE IN ACCORDANCE WITH THE Bancorp will merge into CVB Financial RECOMMENDATION OF THE BOARD OF DIRECTORS, OR, IF THE Corp. and Orange National Bank BOARD OF DIRECTORS GIVES NO RECOMMENDATION, IN THEIR OWN will merge into Citizens Business Bank. DISCRETION. The Board or Directors at present knows of no other business to be presented at the Special Meeting. THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" THE APPROVAL OF THE MERGER AGREEMENT WITH CVB FINANCIAL CORP. THE PROXY, WHEN PROPERLY EXECUTED, WILL BE VOTED AS DIRECTED. IF NO DIRECTION IS MADE, IT WILL BE VOTED "FOR" THE APPROVAL OF THE MERGER AGREEMENT WITH CVB FINANCIAL CORP. Dated , 1999 --------------------------- Signature of shareholder --------------------------- Signature of shareholder Please date this Proxy and sign your name as it appears hereon. Executors, administrators, trustees, etc., should give their full titles. All joint owners should sign.