Emil D. Attanasi James W. Schmoker 1997 Reserve growth is a major component of the remaining U.S. natural gas resources. Historical data support this premise, as do estimates of technically recoverable and of economically recoverable gas resources remaining in the U.S. However, reserve growth is still poorly understood. Hence, much work remains to be done on the phenomenon of reserve growth. application/pdf en PennWell Corporation Reserve growth important to U.S. gas supply article