UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934

                Date of Report (Date of earliest event reported):
                                 October 4, 1999

                               CVB Financial Corp.
             (Exact name of registrant as specified in its charter)

                                   CALIFORNIA
                 (State or other jurisdiction of incorporation)

                                     1-10394
                            (Commission File Number)

                                   95-3629339
                        (IRS Employer Identification No.)

701 North Haven Avenue, Suite 350, Ontario, California           91764
(Address of principal executive offices)                       (Zip Code)

       Registrant's telephone number, including area code: (909) 980-4030

                                 Not Applicable
          (Former name or former address, if changed since last report)




                    This report includes a total of 11 pages
                      Exhibit Index on page 3


Item 1. Changes in Control of Registrant. None. Item 2. Acquisition or Disposition of Assets. On October 4, 1999, Orange National Bancorp, a California corporation ("ONB") merged (the "Merger") with and into CVB Financial Corp. ("CVB"). The Merger was immediately followed by the merger (the "Bank Merger") of Orange National Bank ("Orange") with and into Citizens Business Bank ("CBB"). At September 30, 1999 ONB had, on a consolidated basis, six branches operating in Orange County, California, with total deposits of $246.7 million, total loans of $152.9 million and shareholders' equity of $25.1 million. CVB currently intends to continue to conduct CBB banking operations at all of the Orange branches. Each outstanding share of ONB common stock was converted into 1.5 shares of common stock of CVB. Based on the closing price of CVB common stock on October 1, 1999, the value of the total consideration paid in the Merger was $88.8 million. No fractional shares of CVB common stock were issued in the Merger. In lieu thereof, each half of a share of ONB common stock will be converted into cash in the amount of $13.44. The Merger and the Bank Merger are being accounted for under the pooling of interests method of accounting treatment. CVB expects to issue 3,003,107 additional shares of Common Stock (subject to reduction to the extent cash is paid in lieu of fractional shares) to shareholders of record as of the close of business on October 1, 1999, and 340,500 additional shares of Common Stock to the 1993 and the 1997 Stock Option Plans pursuant to the exercise of options to purchase Orange National Bancorp stock which were assumed as options to purchase CVB Financial Corp.'s common stock. In connection with the Merger and the Bank Merger, Mr. San Vaccaro, former Chairman of the Board of ONB and Orange has joined the boards of directors of CVB and CBB. Please see Item 7, Financial Statements and Exhibits, for financial information related to this merger. Item 3. Bankruptcy or Receivership. None. 2

Item 4. Changes in Registrant's Certifying Accountant. None. Item 5. Other Events. None. Item 6. Resignations of Registrant's Directors. None. Item 7. Financial Statements and Exhibits. (a) Financial Statements of Business Acquired. Orange National Bancorp Annual Report on Form 10-K, Commission file number 000-15365, filed on March 19, 1999, is incorporated herein by this reference. Orange National Bancorp Quarterly Report on Form 10-Q, Commission file number 000-15365, filed on August 13, 1999, is incorporated herein by this reference. (b) Pro forma financial information Page Index to Pro forma financial information Pro forma Combined Balance Sheet June 30, 1999 6 Pro forma Combined Statements of Earnings December 31, 1998, and June 30, 1999 7 (c) Exhibits Page 23 Consent of Independent Auditors 11 3

Item 8. Change in Fiscal Year. None. Item 9. Sales of Equity Securities Pursuant to Regulation S. None. 4

Unaudited Pro Forma Condensed Combined Financial Information The following Unaudited Pro Forma Combined Condensed Balance Sheet as of June 30, 1999, combines the historical consolidated balance sheets of CVB Financial Corp. and Orange National Bancorp as if the merger had been effective on June 30, 1999. The Unaudited Pro Forma Combined Condensed Statements of Income for the period ended June 30, 1999 and the year ended December 31, 1998, present the combined results of operations of CVB Financial Corp. and Orange National Bancorp as if the merger had been effective at the beginning of each period. Dollars are in thousands except for per share data. The Unaudited Pro Forma Combined Condensed Financial Information and accompanying notes reflect the application of the pooling of interests method of accounting for the merger. Under this method of accounting, the recorded assets, liabilities, shareholders' equity, income and expenses of CVB Financial Corp. and Orange National Bancorp are combined and reflected at their historical amounts except that the balance sheet for June 30, 1999 reflects the estimated merger related charges of $4.9 million, after income taxes and assuming a 41% effective tax rate. The pro forma combined figures shown in the Unaudited Pro Forma Combined Condensed Financial Information are simply arithmetical combinations of CVB Financial Corp. and Orange National Bancorp's separate financial results; you should not assume that CVB Financial Corp. and Orange National Bancorp would have achieved the pro forma combined results if they had actually been combined during the periods presented. The combined company expects to achieve merger benefits in the form of operating cost savings. The pro forma earnings, which do not reflect any merger costs or potential savings which are expected to result from the consolidation of the operations of CVB Financial Corp. and Orange National Bancorp, are not indivative of the results of future operations. No assurances can be given with respect to the ultimate level of expense savings. CVB Financial Corp. and Orange National Bancorp consolidated financial statements are prepared in conformity with generally accepted accounting principles. In the opinion of CVB Financial Corp. and Orange National Bancorp, the unaudited pro forma condensed combined financial statements include all adjustments necessary to present fairly the results of the periods presented. 5

Unaudited Pro Forma Condensed Combined Balance Sheet June 30, 1999 (dollars in thousands except per share amounts) CVB Financial Corp. Orange National Bancorp Pro Forma CVB Financial Corp. and Adjustments Orange National Bancorp Combined ------------------- ----------------------- ------------ ----------------------- Assets Federal funds sold $ 0 $ 49,300 $ $ 49,300 Investment securities held to maturity 53,178 13,418 66,596 Investment securities available for sale 679,268 48,084 727,352 Loans and lease finance receivables, net 701,914 145,420 847,334 ------------------ ----------------------- ------------ ---------------------- Total earning assets 1,434,360 256,222 1,690,582 Cash and due from banks 88,963 16,105 105,068 Premises and equipment, net 22,079 5,386 27,465 Other real estate owned, net 1,891 0 1,891 Goodwill and intangibles 9,043 0 9,043 Other assets 46,250 7,922 1,991 56,163 ------------------ ----------------------- ------------- --------------------- TOTAL $ 1,602,586 $ 285,635 $ 1,991 $ 1,890,212 ================== ======================= ============= ===================== Liabilities: Liabilities: Deposits: Noninterest-bearing $ 517,798 $ 94,050 $ $ 611,848 Interest-bearing 688,988 164,941 853,929 ------------------ ----------------------- ------------- --------------------- Total deposits 1,206,786 258,991 1,465,777 Demand note issued to U.S. Treasury 11,816 0 11,816 Federal funds purchased 21,000 0 21,000 Repurchase Agreement 190,000 0 190,000 Securities purchased not settled 36,028 0 36,028 Other liabilities 18,853 2,133 4,856 25,842 ------------------ ----------------------- ------------ --------------------- Total liabilities 1,484,483 261,124 4,856 1,750,463 Stockholders' Equity Common Stock 94,735 8,081 102,816 Retained Earnings 27,392 16,837 (2,865) 41,364 Accumulated other comprehensive income (losses) (4,024) (407) (4,431) ------------------ ----------------------- ------------ --------------------- Total Stockholders' equity 118,103 24,511 (2,865) 139,749 ------------------ ----------------------- ------------ --------------------- TOTAL $ 1,602,586 $ 285,635 $ 1,991 $ 1,890,212 ================== ======================= ============ ===================== See accompanying notes to unaudited pro forma combined financial data. 6

UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENTS OF EARNINGS For the Year Ended December 31, 1998 (dollars in thousands except per share amounts) CVB Financial Corp. and Orange National Bancorp CVB Financial Corp. Orange National Bancorp Combined ------------------- ----------------------- ----------------------- Interest income: Loans, including fees $ 60,207 $ 14,633 $ 74,840 Investment securities: Taxable 31,783 1,602 33,385 Tax-advantaged 4,370 0 4,370 ----------------- ---------------------- ----------------------- 36,153 1,602 37,755 Federal funds sold and interest bearing deposits with other financial 479 2,881 3,360 institutions ----------------- ---------------------- ----------------------- Total interest income 96,839 19,116 115,955 Interest expense: Deposits 23,786 4,165 27,951 Other borrowings 7,462 0 7,462 ----------------- ---------------------- ----------------------- 31,248 4,165 35,413 ----------------- ---------------------- ----------------------- Net interest income 65,591 14,951 80,542 Provision for credit losses 2,500 100 2,600 ----------------- ---------------------- ----------------------- Net interest income after provision for credit losses 63,091 14,851 77,942 Other operating income: Service charges on deposit accounts 7,616 1,194 8,810 Trust services 3,472 0 3,472 Other 3,888 1,589 5,477 ----------------- ---------------------- ----------------------- 14,976 2,783 17,759 Other operating expenses: Salaries, wages and employee benefits 22,700 6,138 28,838 Occupancy 3,779 1,330 5,109 Equipment 3,891 754 4,645 Stationery and supplies 2,703 671 3,374 Professional services 3,802 603 4,405 Promotion 2,012 485 2,497 Data processing 951 977 1,928 Deposit insurance premiums 123 97 220 Other real estate owned expense 1,194 17 1,211 Other 3,869 1,085 4,954 ----------------- ---------------------- ----------------------- 45,024 12,157 57,181 ----------------- ---------------------- ---------------------- Earnings before income taxes 33,043 5,477 38,520 Income taxes 12,256 2,147 14,403 ----------------- ---------------------- ---------------------- Net earnings $ 20,787 $ 3,330 $ 24,117 ================= ====================== ====================== Basic earnings per common share $ 1.26 $ 1.67 $ 1.23 ================= ====================== ====================== Diluted earnings per common share $ 1.21 $ 1.64 $ 1.19 ================= ====================== ====================== Weighted Average Shares Outstanding Basic 16,556 1,989 19,540 Diluted 17,221 2,036 20,275 See accompanying notes to unaudited pro forma combined financial data. 7

UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENTS OF EARNINGS For the Six Months Ended June 30, 1999 (dollars in thousands except per share amounts) CVB Financial Corp. and Orange National Bancorp CVB Financial Corp. Orange National Bancorp Combined ------------------- ----------------------- ----------------------- Interest income: Loans, including fees $ 30,884 $ 6,757 $ 37,641 Investment securities: Taxable 18,662 1,851 20,513 Tax-advantaged 2,613 0 2,613 ------------------ ---------------------- ------------------------ 21,275 1,851 23,126 Federal funds sold and interest bearing deposits with other financial 113 877 990 institutions ------------------ ---------------------- ----------------------- Total interest income 52,272 9,485 61,757 Interest expense: Deposits 10,483 2,073 12,556 Other borrowings 5,746 0 5,746 ------------------ ---------------------- ----------------------- 16,229 2,073 18,302 ------------------ ---------------------- ----------------------- Net interest income 36,043 7,412 43,455 Provision for credit losses 1,100 90 1,190 ------------------ ---------------------- ----------------------- Net interest income after provision for credit losses 34,943 7,322 42,265 Other operating income: Service charges on deposit accounts 4,504 740 5,244 Trust services 1,925 0 1,925 Other 1,677 833 2,510 ------------------ ---------------------- ----------------------- 8,106 1,573 9,679 Other operating expenses: Salaries, wages and employee benefits 12,095 3,032 15,127 Occupancy 1,926 638 2,564 Equipment 2,243 388 2,631 Stationery and supplies 1,534 326 1,860 Professional services 2,619 387 3,006 Promotion 1,296 268 1,564 Data processing 555 481 1,036 Deposit insurance premiums 65 51 116 Other real estate owned expense 361 5 366 Other 2,002 489 2,491 ------------------ ---------------------- ----------------------- 24,696 6,065 30,761 ------------------ ---------------------- ----------------------- Earnings before income taxes 18,353 2,830 21,183 Income taxes 6,782 1,111 7,893 ------------------ ---------------------- ----------------------- Net earnings $ 11,571 $ 1,719 $ 13,290 ================== ====================== ======================= Basic earnings per common share $ 0.70 $ 0.86 $ 0.68 ================== ====================== ======================= Diluted earnings per common share $ 0.67 $ 0.83 $ 0.66 ================== ====================== ======================= Weighted Average Shares Outstanding Basic 16,560 2,000 19,560 Diluted 17,142 2,078 20,259 See accompanying notes to unaudited pro forma combined financial data. 8

Notes to Unaudited Pro Forma Condensed Combined Financial Statements 1. Basis of Presentation CVB Financial Corp. ("CVB") acquired Orange National Bancorp ("ONB") for a fixed exchange ratio of 1.5 CVB shares of common stock for each ONB share of common stock plus cash for any fractional shares. Since these are pro forma statements, no assurance can be given as to the amounts reflected in these financial statements as to whether they would have been representative of the actual amounts presented had the companies been combined at that time. Certain information presented in the historical information of ONB has been reclassified to aid in the presentation of these pro forma condensed combined financial statements. 2. Pro Forma Adjustments Shareholders' equity has been adjusted to reflect the number of shares outstanding for the issuance of 1.5 shares of CVB common stock for each share of ONB common stock. In addition, the merger calls for the stock options of ONB to be converted into stock options of CVB at the same ratio of 1.5 CVB common stock option for each ONB common stock option. Shares outstanding for each period presented have been adjusted to reflect the exchange ratio. Basic pro forma combined net income per share is based on net income and the weighted average number of outstanding common shares. Diluted net income per common share includes the dilutive effect of stock options. The weighted average number of outstanding common shares has been adjusted to reflect the conversion of each share of ONB common stock into 1.5 shares of CVB common stock and the conversion of each ONB into CVB options. 3. Merger Related Charges These charges are accrued in the Balance Sheet only due to the non-recurring nature of these charges. While we cannot accurately determine the total merger related charges at this time, we estimate that we will incur the following charges: Employee Costs $2,282,000 Investment Bankers 880,000 Professional Fees 1,067,000 Data Processing 627,000 ---------- $4,856,000 ========== 9

Our cost estimates are forward-looking. While most of the costs represent costs incurred to the date of this Form 8-K, the ultimate level and timing of the recognition of such costs will be based on the final completion of the integration plan. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has dully caused this report to be signed on its behalf by the undersigned thereunto duly authorized. CVB Financial Corp. (Registrant) Date: October 18, 1999 /s/ Edward J. Biebrich, Jr. --------------------------- Edward J. Biebrich, Jr. Chief Financial Officer 10

CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation of our report for Orange National Bancorp dated January 22, 1999, except for the last paragraph of Note 10, as to which the date is February 11, 1999, incorporated by reference in this Form 8-K in the previously file Registration Statements of CVB Financial Corp. on Form S-8 (No. 333-88519, No. 33-50442 and No. 33-41318). /s/McGladrey & Pullen, LLP - -------------------------- McGLADREY & PULLEN, LLP Anaheim, California October 18, 1999 11