1. Well-level production statistics: ‘all_prod’ data series;NDDMR,2014
2. Well-level characteristics: ‘wellmaster’ data series;NDDMR,2014
3. Snake oil: how fracking's false promise of plenty imperils our future;Heinberg,2013
4. Is “shale oil” the answer to “peak oil”;Tverberg,2011
5. Is shale oil production from Bakken headed for a run with “The Red Queen?”;Likvern;Oil Drum,2012