Public domain
Oklahoma City, Oklahoma. Oil field discovered about 1930. All wells are now on the pump
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineOklahoma City, Oklahoma. Oil field discovered about 1930. All wells are now on the pump. 1942-01-01. Vachon, John. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.