Energy Project

About the Project

As the United States continues to emerge from a historic recession, energy has emerged as both a bright spot and a source of ongoing challenges for the nation’s long-term prosperity and security.

GHG Regulations

Oil Imports

The United States is Importing Increasingly Heavy Grades of Crude Oil
Apr. 1, 2014

One key characteristic of crude oil is its density, which ranges from light to heavy. The density of crude oil–that is, how light or heavy it is compared to water–is often measured by calculating its API gravity, where higher numbers signify lighter crudes and “sweet” or “sour” designations denote the sulfur content of the crude. Lighter, sweeter crudes are generally more valuable from an economic perspective because they are less energy-intensive to refine into finished products.