Today, the OTR is now the West Oakland Pacific Railroad (reporting mark WOPR) that operates on 10 miles (16 km) of track.
The OTR interchanged with the ATSF near the Southern Pacific 16th Street Station in Oakland.
The OTR also interchanged with the Western Pacific via trackage rights over the Key System from Emeryville to the Sacramento Northern (a WP subsidiary) terminal at 40th and Shafter Streets in Oakland.
The Railroad was formed in 1935 by the Railway Realty & Equipment Company, Ltd. to handle the Key System's freight customers.
In 1943 the Key System sold the Oakland Terminal Railroad to the Western Pacific and the Santa Fe Railway.