Ocean Shipholdings Inc., Houston, Texas (N3220523C4198), is awarded a $59,416,597 firm-fixed-price contract for the operation and maintenance of seven government-owned Oceanographic Survey (T-AGS) vessels. The vessels under this award include U.S. Naval Ship (USNS) Waters (T-AGS 45), USNS Pathfinder (T-AGS 60), USNS Bowditch (T-AGS 62), USNS Henson (T-AGS 63), USNS Bruce C. Heezen (T-AGS 64), USNS Mary Sears (T-AGS 65) and USNS Marie Tharp (T-AGS 66). Work will be performed worldwide, with an expected completion date of Sept. 30, 2024. The maximum dollar value, including the base period and six month option, is $90,379,808. Working capital (Navy) funds in the amount of $9,584,083 are obligated for fiscal 2023. Contract funds in the amount of $59,416,597 will not expire at the end of the current fiscal year. This contract was not competitively procured. The contract was prepared under the authority of 41 U.S. Code 3304(a)(2), as implemented by Defense Federal Acquisition Regulation 6.302-1 — only one responsible source and no other supplies or services will satisfy agency requirements. The Navy’s Military Sealift Command, Norfolk, Virginia, is the contracting activity.