Film about oil/ oil production in the U.S. Shot of man holding rock and hammer. Shot of man in hard hat blowing something up in desert. Shot of barrels [oil?] being loaded on a ship. Shot of man in hard hat by machinery tipping his hat. Men working machinery. Smiling man cranking a wheel. Shot of scientist in lab. Shot taken from a car going across San Francisco’s Bay Bridge. Narrator says throughout this: "... the power that lies in oil is part of the muscle and sinew of that job. Partly through the use of oil we have become the most productive people on earth. Partly through the use of oil we will continue forward. Partly through the use of oil we will share this advancement with the world. It is not oil alone that has made this possible, but without oil it could not have happened."