Montebello was a steam oil tanker built in 1920–1921 by the Southwestern Shipbuilding Co. of San Pedro for Union Oil Company. It was designed to carry oil and petroleum products along the West Coast of the United States and Canada, as well as between the United States and Chile. In December 1941 the tanker was sunk on one of her regular trips by the Japanese submarine I-21.

Bethlehem Shipbuilding San Pedro was a major shipbuilding company on Terminal Island in San Pedro, California owned by Bethlehem Shipbuilding Corporation. To support the World War 2 demand for ships Bethlehem Shipbuilding San Pedro built: US Navy Destroyers and after the war tugboats. The yard became involved in World War II production in the early shipbuilding expansions initiated by the Two-Ocean Navy Act of July 1940. At its peak during the war about 6,000 worked at the yard, Bethlehem Shipbuilding San Pedro shipyard was opened in 1918 as Southwestern Shipbuilding by Western Pipe & Steel. Western Pipe & Steel sold the shipyard to Bethlehem Shipbuilding Corporation in 1925. Shipbuilding ended after World War 2 in 1946. In 1983 the shipyard was sold to Southwest Marine. In 1997 Southwest Marine operated four shipyards, which they sold to The Carlyle Group. Carlyle Group renamed the shipyard US Marine Repair. In 2002 US Marine Repair sold all six of its yards to United Defense Industries. In 2005 it was sold to BAE Systems but the yard was not used and the yard is now part of the Port of Los Angeles. The shipyard was located at 1047 South Seaside Ave, San Pedro.