Kroll Bond Rating Agency on Jan. 2 affirmed and withdrew the BBB+ senior unsecured debt rating, BBB subordinated debt rating and K2 short-term debt rating for Denver-based Guaranty Bancorp.

Also affirmed and withdrawn were unit Guaranty Bank and Trust Co.'s deposit and senior unsecured debt ratings of A-, subordinated debt rating of BBB+ and short-term deposit and debt ratings of K2.

The rating agency withdrew the ratings following the completion of Guaranty Bancorp's merger with McKinney, Texas-based Independent Bank Group Inc.