America's natural gas boom has been truly amazing. Since 2006, U.S. gas production has increased 55%, and the result has been a decline in gas prices of 70% since 2008.

This amazing production growth has been thanks to technology such as hydraulic fracturing and horizontal drilling. Its also been due to geological formations such as the Marcellus and Utica shale, whose production has increased 47% annually since 2007 and 165% since 2012, respectively. 

To give you an idea of just how remarkable this growth has been, the Marcellus shale is now single-handedly the world's third largest gas producer, ahead of Qatar and Canada, and just 6% behind all of combined Europe. Analyst firm ICF International expects production for the Marcellus/Utica shale to increase 127% by 2035. 

The benefits of natural gas
Other nations have taken notice of the many benefits of natural gas, including both lower costs and environmental benefits. For example, not only do natural gas power plants generate 50%-70% less CO2 than coal, but according to the World Health Organization, gas kills 40 times fewer people per TWh. In China, the world's largest consumer of coal, coal is 68 times more deadly than gas because of less well regulated mining practices.

The world's shale gas potential 

As this table from the Energy Information Administration shows, the U.S. holds only 9% of the world's technologically recoverable shale gas. So, the question is, with all the benefits of cheap and abundant gas can offer, why hasn't the rest of the world jumped on board the gas fracking bandwagon? As I'll now explain, there are three main categories of problems preventing a global gas boom, reasons that might leave America as the sole shale gas superpower in the coming century. 

Obstacles to an international gas boom
The obstacles to a global shale gas boom can be placed into three categories: legal/regulatory, economic, and geologic/geographic.

In the first category, the U.S. is blessed with highly favorable regulations. According to James Kipp of Wells Fargo Securites, the fact that land owners in the U.S. also own the mineral rights and can lease these rights to private companies is something unique in the world.

In addition, the regulations in the U.S. are designed to incentivize experimentation with new techniques, such as tax breaks that allow for faster depreciation of assets, while those in other countries do not. According to Robert Beck of Anadarko Petroleum, "It's just set up for conventional oil and gas production. There's no way in the traditional production sharing contract that we as an industry can come in and make money."

Meanwhile, in Europe, governments are far more hostile to fracking. For example, sighting environmental concerns popularized in the controversial documentary Gasland, France has made fracking illegal. This is despite the EIA estimating that France contains enough shale gal to provide 80 years of the nation's current gas consumption. 

Thus far, only Bulgaria has joined France in outlawing the practice, but German Environment Minister Barbara Hendricks, has publicly called for such a move. Mrs. Hendrick's reasons for her stance aren't entirely environmental; they are also geographic. "Unlike the USA, our country is densely populated and small,"This brings me to the second category of obstacles, geology and geography. 

America: wide open spaces, lots of water
The United States has been blessed with large, relatively easy geologically exploitable shale formations located in underpopulated areas. We also have the world's largest gas infrastructure, with 1.22 million miles of pipeline -- a number that has quadrupled in just the last six years.

Compare this abundance of infrastructure with China, who, until recently, had the goal of reaching 22%-37% of 2013 U.S. gas production levels by 2020. China's shale gas ambitions may prove impossible to achieve, partially because its pipeline infrastructure is 41 times smaller than that of the U.S., despite being 16% larger in area.

In fact, according to the CIA World Factbook, China currently has only 29,940 miles of gas pipeline. To put that in perspective, Kinder Morgan, America's largest pipeline operator, has 70,000 miles of gas pipelines.

China also has a major water problem, and fracking is thirsty work. Fracking requires an average of 4.4 million gallons of water per well, enough to supply 11,000 American families for a day. 

In fact, China's water shortage is such a problem that the government is worried it might cause power disruption from water intensive coal, nuclear, and gas power plants. To address the issue, the government is in the middle of a 100-year, $62 billion engineering effort call the South-North water diversion project. When complete, it will be the equivalent of diverting the Thames river in London across the width of the United States. 

Bottom line 
All told, the combination of a favorable legal and regulatory framework, vast infrastructure, large water resources, and favorable geology result in U.S. fracking costs per well being 135%-788% cheaper than in other nations. Given that many of these obstacles cannot easily (if ever) be overcome, it is very possible the shale gas boom will prove to be a mostly American affair.

Adam Galas has no position in any stocks mentioned. The Motley Fool recommends Kinder Morgan and Wells Fargo. The Motley Fool owns shares of Kinder Morgan and Wells Fargo. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.