Related by context. Frequent words. (Click for all words.) 59 Shale Gas 58 shale 52 shale deposits 52 coalbed methane 51 shale gas 49 Coal Bed Methane 49 Shale 48 Geothermal 48 Hydrocarbon 48 oil sands 47 Drilling 47 Bakken formation 47 Petroleum 46 Uinta Basin 46 Shtokman 46 Outer Continental Shelf 46 Oil Sands 45 Bakken Shale 45 shale formations 45 Petroleum Reserve 45 hydrocarbon 45 Exploration 45 Natural Gas 45 outer continental shelf 44 shales 44 tar sands 44 Piceance Basin 44 Hydrocarbons 44 hydrocarbons 44 Geothermal Energy 44 Rare Earths 43 Carbon Capture 43 Gas Exploration 43 Woodford Shale 43 Lease Sale 43 horizontal drilling 43 Offshore Drilling 43 Petroleum Exploration 43 drilling 43 Natural Gas Pipeline 43 exploration 43 Rare Earth 42 Hydropower 42 Geological 42 Mining 42 wells drilled 42 Uranium 42 natural gas 42 Haynesville Shale 42 gas condensate 42 Onshore 42 Piceance 41 Fayetteville Shale 41 oilfields 41 exploratory drilling 41 Norway Statoil 41 Bakken 41 Gas Storage 41 Clean Coal 41 Wind Energy 41 Alternative Fuels 41 Williston Basin 41 Marcellus Shale 40 Roan Plateau 40 MMBoe 40 Kovykta 40 drillers 40 Maersk Oil 40 Geophysical 40 Geospatial 40 directional drilling 40 oil 40 Mineral Exploration 40 EOR 40 hydrocarbon reserves 40 undrilled 39 Offshore Oil 39 Greenhouse Gas 39 Fracking 39 Mineral Resources 39 deepwater exploration 39 Haynesville shale 39 Mineral 39 Biomass 39 Sonatrach 39 Pinedale Anticline 39 Geologic 39 exploratory wells 39 Spain Repsol 39 Spain Repsol YPF 39 Alberta tar sands 39 oilsands 39 ANWR 39 Tar Sands 39 horizontal wells 39 geothermal 39 bed methane 39 Renewable 39 carbon sequestration 39 coal seam 39 Resource Estimate