Sen. Byron Dorgan says the U.S. Geological Survey is slated to release a study this week on the oil potential of the area known as the Bakken formation.
The shale formation encompasses some 25,000 square miles in North Dakota, Montana, Saskatchewan and Manitoba.
Dorgan says the study is to be released Thursday. He says it will estimate the amount of oil that is recoverable in the Bakken using current technology.
USGS 1995 study and current decline rates
Estimates of bakken oil size and timing
Multistage fracturing horizontal drilling technique
Bakken oil not fully valued
Bakken oil is highly profitable
A Saudi Arabia of oil in Bakken and Toquay formations in the USA and Canada