Carter Validus Mission Critical REIT Inc.'s operating partnership and certain units agreed to amend its existing credit facility agreement with KeyBank NA to extend the maturity date and alter the extension options of the revolving line of credit portion of the facility.

Under the amended agreement, the maturity date of the revolver has been pushed back by a year to May 28, 2018, subject to the operating partnership's right to two 12-month extension periods.

As of Feb. 2, the aggregate unencumbered pool availability under the credit facility totaled roughly $514.6 million and the remaining unencumbered pool availability was $136.6 million.