Estimates put recoverable reserves at around 605 million barrels.

With the ability to reach the end of these well types, recoverable reserves are increased.

That would almost double the current volume of recoverable reserves.

Commercially recoverable reserves were found another 200 yards down from that sample in early November, he said.

Total recoverable reserves were more than 500 million tons.

As of May 1999 estimated recoverable reserves of oil were 287 million barrels.

The recoverable reserves are equivalent to about three months' consumption in the United States, it added.

These areas contain only a trivial percentage of the nation's recoverable reserves.

Various other estimates place the total reserves, recoverable and non-recoverable with today's technology, at up to 24 billion barrels.

The recovery factor is commonly 30-35%, giving a value for the recoverable reserves.