Natural gas trades below $4 per a million British thermal units, a steep discount to parts of Europe and Asia, where the fuel source costs more than $10. Thanks to the explosive growth of shale production, U.S. natgas is far cheaper and abundant, making it ripe for shipment to energy-starved countries abroad.
All of which makes domestic interests wary of how export demand may put upward pressure on historically low prices and hurt U.S. consumers. Natural gas is slowly displacing coal as a means of generating electricity and is credited with helping to contain costs in energy and other retail prices.
(Read more: Pressure mounts on US to export natural gas)
We're seeing more [demand] growth from power than we are from exports," said Bob Ineson, managing director of North American natural gas at research firm IHS. U.S. natgas stocks are plentiful enough to accommodate international needs that 65 percent of projected demand growth is domestic, he said.
"The supply complex is strong enough to accommodate multiple uses," he added, downplaying concerns about the impact on demand.
The push to export natural gas will help benefit small to midsized energy companies that are players in U.S. shale development, such as Apache, Anadarko, Plains All American and Chesapeake Energy. Yet Ineson says that halo effect could even extend to construction companies that will help build export terminals.
"When you have such a concentrated period of adding large facilities, the construction companies tend to do fairly well," he said.
While fracking remains controversial in the U.S., the process for extracting natural gas is far more advanced than in other parts of the globe.
"It's not a revolution but an evolution that has taken place in the market over many years," said Roubini's Clark. "You don't have that environment anywhere else."
—By CNBC's Javier E. David.