![WikiProject icon](https://upload.wikimedia.org/wikipedia/commons/thumb/d/dc/Oil_well_icon.svg/80px-Oil_well_icon.svg.png) | 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 | |