Interocean Shipping Company
Interocean Shipping Company, Interocean Steamship Company of San Francisco was a subsidiary of the Bethlehem Steel Company founded in the late 1930s and closed in 1986. During World War II Interocean Shipping Company operated Merchant navy ships for the United States Shipping Board.
Source: Wikipedia — Interocean Shipping Company (CC BY-SA 4.0)