[1] The ship is named after Private First Class Eugene A. Obregon, an American Marine who was awarded the Medal of Honor during the Korean War.

[4] In 1985, she was acquired and chartered by the Navy under a long-term contract as SS PFC Eugene A. Obregon (AK-3006).

[4] In January 2010, PFC Eugene A. Obregon was put into the Maritime Prepositioning Ship Squadron 1, based in the Atlantic Ocean.

Matej Kocak (T-AK-3005), USNS Maj. Stephen W. Pless (T-AK-3007) and PFC Eugene A. Obregon on 29 September 2020.

[7] On 21 March 2023, PFC Eugene A. Obregon, with the remaining two ships in the class, was stricken from the Naval Vessel Register.