Related by context. Frequent words. (Click for all words.) 56 CO2 sequestration 56 reinjection 55 extraction 54 Carbon sequestration 54 hydraulic fracturing 54 tailing ponds 54 fracing 54 carbon dioxide sequestration 54 Fracking 53 tar sands 53 Hydraulic fracturing 53 carbon sequestration 53 shale 53 Horizontal drilling 52 aquifer recharge 52 fracking 52 Outer Continental Shelf OCS 52 horizontal drilling 51 frac sand 50 hydrofracking 50 subsurface 50 Niobrara Shale 50 coalbed methane 50 fracking fluid 49 Exploratory drilling 49 extractive 49 geosequestration 49 fracking fluids 49 oil sands 49 contaminate groundwater 49 finite resource 49 EOR 49 Alberta tar sands 49 Vermillion Basin 49 abiotic 48 reservoir characterization 48 Uinta Basin 48 Tar Sands 48 gravity drainage 48 Controlled burns 48 shale deposits 48 frack 48 Bakken shale 48 oil 48 groundwater remediation 47 drillers 47 Oil Shale 47 technically recoverable 47 salt domes 47 bed methane 47 Shale Gas 47 drilling 47 Integrated Gasification Combined Cycle 47 coalbed methane CBM 47 environmentally sensitive 47 frac fluid 47 directional drilling 47 unconventional shale 47 evaporation ponds 46 gas liquefaction 46 Neslin 46 contaminating groundwater 46 See Futures Movers 46 Utica shale 46 categorical exclusion 46 geologic formations 46 kerogen 46 shale gas 46 tarsands 46 Oooguruk 46 depositional 46 dewatering 46 pollute groundwater 46 gasfields 46 oilsands 46 coal gasification 46 flowback 45 Book Cliffs 45 bioremediation 45 exploratory drilling 45 gravity drainage SAGD 45 liquids GTL 45 tailings ponds 45 Anticline 45 recovery EOR 45 injection wells 45 alluvial deposits 45 desalinization 45 groundwater 45 contaminate drinking 45 hydrocarbon 45 biodegradation 45 hydrocarbons 45 bio remediation 45 iron fertilization 45 wildcatter 45 irrigated agriculture 44 fracking chemicals 44 subsalt 44 extractable 44 Valle Vidal