The Petroleum Administration for Defense Districts (PADDs) are geographic aggregations of the 50 States and the District of Columbia into five districts: PADD 1 is the East Coast, PADD 2 the Midwest, PADD 3 the Gulf Coast, PADD 4 the Rocky Mountain Region, and PADD 5 the West Coast. Due to its large population, PADD 1 is further divided into sub-PADDs, with PADD 1A as New England, PADD 1B the Central Atlantic States, and PADD 1C comprising the Lower Atlantic States. There are two additional PADDs (PADDs VI and VII) that encompass U.S. Territories (these are not pictured on the map). The PADDs help users of EIA's petroleum data assess regional petroleum product supplies.
During World War II the Petroleum Administration for War, established by an Executive order in 1942, used these five districts to ration gasoline. Although the Administration was abolished after the war in 1946, Congress passed the Defense Production Act of 1950, which created the Petroleum Administration for Defense and used the same five districts, only now called the Petroleum Administration for Defense Districts.
The PADDs also allow data users to analyze patterns of crude oil and petroleum product movements throughout the nation.
EIA initiated a new series with monthly data from January 2010 through the current reporting month. CBR (Crude by rail) activity is tracked between pairs of Petroleum Administration for Defense District (PADD) regions (inter-PADD), within each region (intra-PADD), and across the U.S.-Canada border. EIA developed the new series using information provided by the U.S. Surface Transportation Board (STB) along with data from Canada’s National Energy Board, and EIA survey data.
Total CBR movements in the United States and between the United States and Canada were more than 1 million barrels per day (bbl/d) in 2014, up from 55,000 bbl/d in 2010. The regional distribution of these movements has also changed over this period.
Growth in total CBR movements slowed in 2014, but the average CBR volume exceeded 1 million bbl/d. Bakken crude from PADD 2 continued to dominate flows, making up 70% of CBR volumes. Niobrara crude from PADD 4 grew in importance as the second-largest origin for rail shipments. East Coast refineries (PADD 1) were the primary destination for CBR receipts in 2014.