North Dakota's congressional delegation says the University of North Dakota is getting a $1 million federal grant to study the Bakken shale formation in North Dakota and eastern Montana and ways to tap its oil.

A report from the U.S. Geological Survey has estimated that up to 4.3 billion barrels of oil could be recovered from the Bakken in North Dakota and Montana. Industry officials have said it costs more than $5 million to drill a Bakken well.

The shale formation encompasses some 25,000 square miles in North Dakota, Montana, Saskatchewan and Manitoba.

- Associated Press