NAICS for Mining, Quarrying, and Oil and Gas Extraction

What is the NAICS code for the Mining, Quarrying, and Oil and Gas Extraction industry?

The NAICS code associated to the Mining, Quarrying, and Oil and Gas Extraction industry is 21.

That is, any industry or business that performs activities related to Mining, Quarrying, and Oil and Gas Extraction shall be classified with NAICS 21.

What are the most frequent activities in this industry?

There are no alternate NAICS descriptions for the Mining, Quarrying, and Oil and Gas Extraction industry.