This category is within the scope of WikiProject Companies, a collaborative effort to improve the coverage of companies on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.CompaniesWikipedia:WikiProject CompaniesTemplate:WikiProject Companiescompany articles
This category is within the scope of WikiProject Countries, a collaborative effort to improve the coverage of countries on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.CountriesWikipedia:WikiProject CountriesTemplate:WikiProject Countriescountry articles
This category is within the scope of WikiProject Energy, a collaborative effort to improve the coverage of Energy on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.EnergyWikipedia:WikiProject EnergyTemplate:WikiProject Energyenergy articles
This category is within the scope of WikiProject Europe, an effort to build a comprehensive and detailed guide to European topics of a cross-border nature on Wikipedia.EuropeWikipedia:WikiProject EuropeTemplate:WikiProject EuropeEurope articles
Start a discussion about improving the Category:Oil and gas companies of Europe by country page