AAA Lakeside Storage has a handful of Sincalir dinosaurs in our museum! The Sinclair dinosaur—commonly associated with the green brontosaurus mascot named Dino (pronounced DYE-no)—has a rich and unique history tied to American petroleum culture and advertising. Here’s a breakdown of its origins and development:


🦕 Origins of Sinclair Oil

  • Founded: Sinclair Oil Corporation was founded by Harry F. Sinclair in 1916.

  • Name Origin: The company was a merger of 11 smaller petroleum companies.

  • Headquarters: Initially in New York, later moved to Wyoming.


🦖 The Dinosaur Connection

  • Why a dinosaur? In the 1930s, Sinclair began using the image of dinosaurs to promote its petroleum products. The idea was based on the (now outdated) belief that crude oil came from decomposed dinosaurs.

  • 1930s Advertising Campaign: Sinclair used a variety of dinosaur species in ads to highlight the “age” and “natural origins” of its products.


🦕 Creation of Dino the Brontosaurus

  • Debut: Dino was introduced around 1930, but became the official mascot in 1932.

  • Design: Initially modeled after the brontosaurus (now considered part of the apatosaurus genus), which symbolized strength, reliability, and longevity—qualities Sinclair wanted consumers to associate with its gasoline.

  • Trademark: Dino was officially trademarked in 1932.


🦕 Popularity and Cultural Impact

  • 1933–34 World’s Fair: Sinclair had a major exhibit featuring life-size dinosaur models.

  • 1964–65 New York World’s Fair: Sinclair created an even more famous “Dinoland” exhibit, which included large fiberglass dinosaur sculptures that became iconic.

  • Toys and Promotions: Dino was featured in toys, road maps, and promotional materials for decades.


🦕 Modern Usage

  • Continued Branding: Dino still appears on Sinclair gas stations, signage, and merchandise.

  • Inflatable Mascot: The giant inflatable Dino balloon has become a crowd favorite in events like the Macy’s Thanksgiving Day Parade.

  • Merchandising: Sinclair has released a variety of Dino-themed items, from plush toys to retro signage.


🦕 Fun Fact

  • The belief that oil came from dinosaurs is mostly myth—most petroleum comes from ancient plankton and marine microorganisms. But the dinosaur theme stuck because it was memorable and appealing.