Extractive industries are mainly run by large private companies. Among the world’s top 50 companies, 9 are in oil or mining
Eg. Saudi Aramco ranked 1st for oil companies and Vale (Brazil) ranked 1st in 2007 for metal mining companies
Governments often play a big role in these industries because they need a lot of infrastructure and logistical support. Governments can operate as a regulator (of safety from environmental issues, for example) as well as an operator