The US Navy's Military Sealift Command (MSC) has exercised a one-year renewal option with AAR's Airlift Division to carry out vertical replenishment (Vertrep) services for the navy.
The Vertrep services are intended for the navy's fifth and seventh Fleets located in the Mediterranean Sea, Arabian Gulf and Indian Ocean.
Valued at $6.7m, the one-year renewal is part of a contract that was awarded to AAR Airlift Group in 2014 for an estimated value of $34m.
The contract covers the use of two helicopters, personnel, and operational and technical support services.
AAR Airlift Group president Steven B. Harrison said: "AAR Airlift has provided exceptional service to the US Navy at an excellent value for eight consecutive years.
"We're honoured to continue providing this critical service for our military personnel."
Currently, AAR operates a total of six helicopters for the Navy's commercial VERTREP program.
MSC provides ocean transportation for the Navy and the US Department of Defense, operating around 110 ships daily across the globe.
For MSC, AAR has been providing services including ship-to-shore and ship-to-ship vertical replenishment, search-and-rescue, and support for humanitarian aid operations since 2007.
AAR Airlift currently offers aviation services in support of expeditionary operations worldwide, including passenger and cargo transport, aeromedical services, night vision operations, aerial delivery, search and rescue, and other special mission services.
Recently, MSC fleet replenishment oiler USNS Tippecanoe (T-AO-99) successfully completed a fuelling evolution at-sea with the tanker Maersk Peary.
The refuelling between the vessels marked a significant step in increasing proficiency with at-sea fuel consolidation operation between tankers, the US Navy stated.