Kellogg Brown and Root Services Inc., Houston, Texas, is awarded a $24,763,860 indefinite-delivery/indefinite-quantity modification to previously awarded contract N62470-17-D-4007 to exercise the fifth option period for base operations support services at Naval Support Activity (NSA), Kingdom of Bahrain. This award brings the total cumulative value of the contract to $139,198,905. Work will be performed at NSA, Kingdom of Bahrain, and completed by November 2023. No funds will be obligated at time of award. Fiscal 2023 operation and maintenance (Navy) contract funds in the amount of $24,763,860 will be obligated for recurring work on individual task orders issued during the option period. The Naval Facilities Engineering Systems Command, Europe Africa Central, Naples, Italy, is the contracting activity.