Batsman James Hildreth has signed a new three-year contract with Somerset.
The Milton Keynes-born 29-year-old has spent his entire career at Taunton and made his first-team debut in 2003.
Since then he has played 175 first-class matches, scoring 11,204 runs at an average of 43.09.
"We are delighted to have secured Hildy for the coming three seasons and have no doubt that he will continue to be a great asset for the club," said director of cricket Dave Nosworthy.
"To think that he is has already scored over 11,000 first-class runs at the age of just 29 is unbelievable.
"He is a quality player and person who sincerely has the club and the team at heart - which is just the type of player we wish to secure well in to the future."