Arnold Schlaet (1859–1946) was a U.S. oil industrialist and business man.
In 1901, Schlaet, with Jim Hogg, John Warne Gates, and Joseph S. Cullinan, founded the Texas Fuel Company, predecessor to Texaco Incorporated. Schlaet was an agent from New York City who worked for the United States Leather Company, owned by John J. and Lewis Henry Lapham. Naturally conservative, he was nevertheless impressed with Cullinan's plans, and helped him to gain capital to start the new venture.[1]