The board of directors of America Service Group have awarded the prison health provider's top five officers with raises averaging 7.7 percent.

In a filing with regulators, the Brentwood-based company disclosed the move, which was made last week and becomes effective Jan. 1.

The biggest salary hike is going to CFO Michael Taylor, who will be paid $420,000 next year, 9.1 percent more than in 2010. CEO Rich Hallworth is getting an 8.8 percent boost to $571,000 in 2011, while Chief Development Officer Jonathan Walker will be paid $270,000, up from $250,000 this year.

Carl Keldie and Scott King, chief medical officer and chief legal officer, respectively, also are getting nice raises, though theirs are both below 7 percent.

The pay increases come a year after both Hallworth and Taylor received salary boosts of more than 20 percent when they were appointed to their new positions as well as the company's board.

Shares of America Service (Ticker: ASGR) were up slightly this afternoon, but have lost 8 percent of their value this year.