Standard Oil of California adopted a three-bar chevron, red at the bottom with white and blue above, in 1931. Chevron became a product name from 1937; the plain chevron became the uniform symbol in 1955, appearing on flags and funnels. In 1969 the logo changed to two bold coloured strokes beneath black Chevron lettering and survived the 1984 reorganisation. The flag became white with the chevron and black name above. Associated firms, including Standard Oil of British Columbia and Chevron Tankship (U.K.), also used the design; Marinart attributes the funnel to Standard Oil of California.
Ata’s website rendering appears duller than expected: Rosanoski regards the funnel as white rather than grey and the blue and red as brighter. Mitchell also shows the earlier Standard Oil and California Transport markings, suggesting they initially continued.
Chevron Shipping, or CSC, was formed in 1957 as California Shipping, renamed in 1965 and later styled Chevron Shipping Co. LLC. It became ChevronTexaco Shipping in 2001 and reverted to Chevron Shipping in 2006. It operated for Chevron Transport, Standard Oil of California, Chevron Navigation and other group companies, and acted as agent for Overseas Tankship.
USA, San Francisco CA; later San Ramon CA.
Keep the explicit scope label independent; no alias or company identity is inferred.