Exploring for crude oil 101: Meeting the people who bring you American energy. From the back-breaking labor of drilling to the precision of seismic interpretation, these workers represent a varied workforce of family owned businesses to skilled scientists; a specialized group who have devoted their life’s work to the discovery of crude. Filled with photos, you can meet the workers, tour the job site, learn what’s in a 42-gallon barrel, discover the early ages of drilling, and find out what makes this global product so important. Step into the fascinating world of crude oil. Hardcover.