Question: This country not only has the 10th-largest reserve of natural gas, but also is the 6th-largest gas exporter.
About the article "Algeria", section "Hydrocarbons".

Candidate passages:
Russia is the largest exporter of natural gas in the world, it exports almost twice as much natural gas as the second largest exporter.
This is a list of countries by natural gas exports mostly based on The World Factbook: 
According to International Energy Agency (IEA), the combined structure is the world's largest gas field.
In-place volumes are estimated to be around gas in place and some of natural gas condensate in place.
With in place volumes equivalent to of oil (310 billion boe of gas and 50 billion boe of natural gas condensate) the field is the world's biggest conventional hydrocarbon accumulation.
The field recoverable gas reserve is equivalent to some of oil and it also holds about of recoverable condensate corresponding of about of oil equivalent recoverable hydrocarbons.
The gas recovery factor of the field is about 70%, corresponding of about of total recoverable gas reserves which stands for about 19% of world recoverable gas reserves.
The estimates for the Iranian section are of natural gas in place and around of recoverable gas which stands for 36% of Iran's total proven gas reserves and 5.6% of the worlds proven gas reserves.
The estimates for the Qatari section are of recoverable gas which stands for almost 99% of Qatar's total proven gas reserves and 14% of the worlds proven gas reserves.
Table 1-"South Pars / North Field Gas Reserves"However, since the field is a common field and the reservoir is highly homogenous, the ultimate recoverable reserves of each country may vary from this technical assessment which only considers the static data and does not include rate of gas migration.
So, it is better to say that the ultimate recoverable reserves of each country would be a factor of cumulative gas production by each of them.
The Iranian section also holds of condensate in place of which some are believed to be recoverable, while Qatari section believed to contains some of condensate in place and at least some of recoverable condensate.
The field is rich in liquids and yields approximately of condensate per of gas.
It has also very high level of well productivity which in average stands for per day per well. 
The petroleum industry in Russia is one of the largest in the world.
Russia has the largest reserves, and is the largest exporter, of natural gas.
It has the second largest coal reserves, the eighth largest oil reserves, and is the largest producer of oil.
It is the third largest energy user.
Russia is the largest oil producer in the world, producing an average of of oil per day in 2010.
It produces 12% of the world's oil and has a same share in global oil exports.
In June 2006, Russian crude oil and condensate production reached to the post-Soviet maximum of per day.
Exceeding production in 2000 by .
Russian export consists more than of oil and nearly of refined products, which go mainly to the Europe market.
The domestic demand in 2005 was in averaged.
It is also the main transit country for oil from Kazakhstan.
Russia is by far the world's largest natural gas exporter.
Most, but not all authorities believe that Russia has the world's largest proven reserves of natural gas.
Sources that consider that Russia has by far the largest proven reserves include the US CIA (47.6 trillion cubic meters), the US Energy Information Administration (47.8 tcm), and OPEC (48.7 tcm).
However, BP credits Russia with only 32.9 tcm, which would place it in second place, slightly behind Iran (33.1 to 33.8 tcm, depending on the source).
In addition to having the world's largest proved reserves of natural gas, according to US Geological Survey estimations, Russia is also likely too have the world's largest volume of still-undiscovered natural gas: a mean probable volume of 6.7 trillion cubic meters.
The USGS estimate of Russia's undiscovered oil is 22 billion barrels, second in the world only to those of Iraq.
The Russian oil industry claims to be in need of huge investment.
Strong growth in the Russian economy means that local demand for energy of all types (oil, gas, nuclear, coal, hydro, electricity) is continuing to grow. 
The natural gas in Qatar covers a large portion of the world supply of natural gas.
According to "Oil & Gas Journal", as of January 1, 2011, reserves of natural gas in Qatar were measured at approximately ; this measurement means that the state contains 14% of all known natural-gas reserves, as the world's third-largest reserves, behind Russia and Iran.
The majority of Qatar's natural gas is located in the massive offshore North Field, which spans an area roughly equivalent to Qatar itself.
A part of the world's largest non-associated, natural-gas field, the North Field, is a geological extension of Iran's South Pars / North Dome Gas-Condensate field, which holds an additional of recoverable natural-gas reserves.
While Qatar is a member of the OPEC and is a significant oil producer, the government has devoted more resources to the development of natural gas in the contemporary era, particularly for export as liquefied natural gas (LNG).
In 2006, Qatar reportedly surpassed Indonesia to become the largest exporter of LNG in the world.
Together, revenues from the oil and natural-gas sectors amount to 60% of the country's GDP.
Domestically, the vast majority of Qatar's total energy consumption comes from natural gas (79%), whilst the balance is supplied by oil. 
Although production rates were small as of 2013, the volume of technically recoverable shale gas in China has been estimated to be 1,115 trillion cubic feet, the largest of any country in the world.
As of 2013, China is one of only three countries (with the US and Canada) to produce shale gas in commercial quantities.
China is turning to natural gas as a way to decrease air pollution created by burning coal.
In 2011, 70 percent of China’s energy consumption came from coal, 18 percent from oil and only 4.5% came from natural gas.
Although conventional natural gas production in China has increased rapidly since 2000, it has not kept up with demand, and China has increasing imports of gas.
In 2011, China consumed 147 bcm of natural gas, but produced only 107 bcm; the remainder, 27 percent of national consumption, was imported.
Shale gas is seen as a way to reduce or eliminate dependence on imported gas.