List of unnamed Federation starships of the Oberth-class.

24th century

Battle of Wolf 359 (β)

This unnamed Oberth-class starship was in service to Starfleet in the latter half of the 24th century. The starship was destroyed by the Borg in the Battle of Wolf 359 in 2367, along with 38 other starships. The starship was seen being destroyed by a cutting beam outside of Benjamin Sisko's quarters on board the USS Saratoga during the latter ship's evacuation. (DS9: "Emissary")

Evacuation of Veridian III (β)

In 2371, an unnamed Oberth-class starship assisted the USS Farragut and an unnamed Miranda-class starship in recovering the crew of USS Enterprise-D from Veridian III, following the forced crash-landing of its saucer section. (Star Trek Generations)

Battle of Sector 001

At least three unnamed Oberth-class starships fought against the Borg in the Battle of Sector 001 in 2373.

One destroyed vessel is seen quickly after the Defiant maneuvers past a destroyed hulk on a strafing run on the cube. Another two vessels were on the far side of the attacking Borg cube when the cube was first engaged by the USS Enterprise-E. (Star Trek: First Contact)