Related by context. Frequent words. (Click for all words.) 50 producible 49 extractable 48 commercially viable 47 hydrocarbon reserves 45 economically recoverable 44 commercially recoverable 43 Coal gasification 43 geological formations 43 storable 42 methane hydrate 42 minable 42 kerogen 42 scramjets 42 North Falkland Basin 41 technologically feasible 41 undrilled 41 technically recoverable 41 OOIP 41 EROI 40 Fossil fuels 40 geologic formations 40 unmined 40 economically viable 40 quantities 40 commercially 39 deepwater discoveries 39 underexploited 39 untapped 39 recoverable 39 tcf 39 insitu 39 drillable prospects 39 sedimentary basins 39 shallow depths 39 VRB ESS 39 Chattanooga Shale 39 synfuels 38 Rhenium 38 Coal seam 38 commercially feasible 38 thermally stable 38 Tcf 38 locatable 38 halloysite 38 Niobrara Shale 38 sedimentary basin 38 usable 37 alluvial deposits 37 recoverable reserves 37 sub bituminous coal 37 Carbon sequestration 37 microwatts 37 terawatts 37 nonrenewable resource 37 Montney formation 37 superconductive 37 economically mineable 37 Woodford shale 37 Caspian basin 37 producing 37 Higgs particle 37 heap leach processing 37 Georgina Basin 37 biocrude 37 unrisked 37 downdip 37 SOFCs 37 unexploited 37 carbon nanotubes CNTs 37 mineable reserves 37 technically feasible 37 bioavailable 37 commercially unviable 37 graspable 37 sufficient quantities 37 Bakken Formation 37 commerciality 37 Kaskida 36 productivities 36 MMbbl 36 totalizing 36 shales 36 Biobutanol 36 underexplored 36 MMbbls 36 unrealizable 36 renewable feedstocks 36 Cutbank Ridge 36 bn cu m 36 costless 36 spintronic devices 36 methane hydrates 36 liquify 36 subsalt 36 interpretable 36 useable 36 gas hydrates 36 realizable 36 shale formations 36 environmentally beneficial 36 Lower Tertiary