ICNEA 0721—Land-based natural gas extraction

Where 0721 sits

1. B Mining industry
2. 07 Oil and gas extraction industry
3. 072 Natural gas extraction
4. 0721 Land-based natural gas extraction

What 0721 includes

• It includes the following land-based natural gas extraction activities：
• Natural gas
• Liquefied natural gas
• Coal bed methane (coalfield)
• Shale gas
• Natural gas hydrate
• Comprehensive development and utilization of coal bed methane
• Application of microbial mining coalbed methane technology
• Comprehensive utilization of shale gas

What 0721 excludes

• Offshore natural gas and combustible ice mining, included in 0722 (offshore natural gas and combustible ice mining)
• Natural gas pipeline transportation, included in the 57 (Pipeline transportation industry) related industry categories
• The manufacture of industrial gases is included in 2619 (the manufacture of other basic chemical raw materials)
• Oil and natural gas exploration activities are included in 7471 (Geological exploration of energy and minerals)

0721 in other systems