Exhibit 99.1 Press Release Friday, August 15, 2003 FOR IMMEDIATE RELEASE CONTACT: FARMERS NATIONAL BANC CORP. FRANK L. PADEN, PRESIDENT CANFIELD, OH 44406 330-533-3341 FAX 330-533-0451 EMAIL: EXEC@FNBCANFIELD.COM FARMERS NATIONAL BANC CORP. DECLARES THIRD QUARTER CASH DIVIDEND CANFIELD, Ohio - Farmers National Banc Corp, (OTC BB: FMNB), the parent of Farmers National Bank, announced today that the Corporation's Board of Directors has declared a third quarter cash dividend of $.15 per share on its common stock, payable on September 30, 2003, to shareholders of record on September 12, 2003. This cash dividend represents a 7.1% increase to $.15 per share from $.14 per share paid in September 2002. The Corporation recently reported second quarter's earnings of $2.42 million or $.19 per share, compared to second quarter 2002 of $1.81 million or $.15 per share. Farmers National Bank operates sixteen banking offices and ATMs throughout Mahoning, Trumbull and Columbiana counties. The bank offers a wide range of banking and investment services to companies and individuals, and maintains a website at www.fnbcanfield.com.