Public domain
Adding a length of drilling pipe at oil well in Seminole oil field, Oklahoma. Mud spurting out as section of pipes are loosened
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineAdding a length of drilling pipe at oil well in Seminole oil field, Oklahoma. Mud spurting out as section of pipes are loosened. 1939-01-01. Lee, Russell. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.