PINE BLUFF, Ark., June 27, 2012 (GLOBE NEWSWIRE) -- Simmons First
National Corporation (Nasdaq:SFNC) today announced it expects to
release second quarter 2012 earnings prior to the market opening on
Thursday, July 26, 2012, followed by a live conference call to review
this information beginning at 3:00 p.m. Central Time. Interested
persons can listen to this call by dialing toll-free 1-888-551-9020
(United States and Canada only) and asking for the Simmons First
National Corporation conference call. A replay of the call will be
available through 5:00 p.m. Central Time on August 1, 2012, by dialing
toll-free 1-888-203-1112. The passcode for the replay is 9343144. In
addition, the call will be available live or in recorded version on the
Company's website at www.simmonsfirst.com.

Simmons First National Corporation is an eight bank financial holding
company with community banks in Pine Bluff, Lake Village, Jonesboro,
Rogers, Searcy, Russellville, El Dorado and Hot Springs, Arkansas. The
Company's eight banks conduct financial operations from 88 offices, of
which 84 are financial centers, in 47 communities in Arkansas, Missouri
and Kansas.

The Simmons First National Corporation logo is available at
http://www.globenewswire.com/newsroom/prs/?pkgid=4819


CONTACT: FOR MORE INFORMATION CONTACT:
         DAVID W. GARNER
         Senior Vice President and Investor Relations Officer
         Simmons First National Corporation
         (870) 541-1000