"However, we were pleased with 6 percent year-over-year growth in net interest income." Earnings per share were 73 cents, dipping 1.4 percent from 74 cents a share a year ago. The company's return on average assets for the quarter was 1.4 percent, and the return on average equity was 14.4 percent. During the quarter, the bank completed its acquisition of South Tulsa Financial Corp., a single-bank holding company in Tulsa, Okla. The bank also purchased about 950,000 shares of its common stock through its treasury stock buyback plan. The company April 18 also announced a quarterly dividend of 25 cents per share. The dividend on common stock is payable June 27 to stockholders of record June 7. Shares (Nasdaq: CBSH) closed April 25 at $47.67, compared to a 52-week range of $43.43 to $50.77. UMB Financial Kansas City-based UMB Financial Corp., the parent company of UMB Bank, on April 24 announced earnings of $17.3 million for the first quarter of 2007, up 30.8 percent from first-quarter 2006.