The Willow project is an oil drilling project by ConocoPhillips located on the plain of the North Slope of Alaska in the National Petroleum Reserve in Alaska entirely on wetlands. The project was originally to construct and operate up to five drill pads for a total of 250 oil wells. Associated infrastructure includes access and infield roads, airstrips, pipelines, a gravel mine and a temporary island to facilitate module delivery via sealift barges on permafrost and between waters managed by the state of Alaska.