Helium is likely to move from a derived product of natural gas production in the United States to a primary drilling target in the next five years. Historically produced as a byproduct of natural gas, the US helium supply is declining, which has caused alarm throughout the industry.
Why is helium so important? Most people associate helium with party balloons and squeaky cartoon voices; however, there is a very serious side of the helium industry that few people comprehend. Without helium, MRI machines don't function, NASA rockets aren't launched and semiconductor manufacturing grinds to a halt. Helium is simply indispensible to these and various other critical applications, and its increasing scarcity has many people nervous.
According to Bo Sears, president of Inter-American Corporation, U.S. helium extraction from natural gas has been declining since 2000. The fast depleting Hugoton gas field, which covers parts of Kansas, Oklahoma and Texas, is yielding lower and lower volumes natural gas and helium.
"Throughout the 20th Century, the Hugoton field was the source of most of the world's helium production. Hugoton gas contains concentrations of helium ranging from 0.3 percent to 1.9 percent and it represents about 75 percent of all domestic helium production," Bo Sears explained. ExxonMobil's LaBarge field in western Wyoming started producing helium in 1986 and represents the other 25 percent.
http://www.rigzone.com/news/article.asp?a_id=112735&hmpn=1