Related by context. Frequent words. (Click for all words.) 89 Marcellus Shale 69 Marcellus 69 shale gas 68 shale 67 Barnett Shale 65 Haynesville Shale 65 Fayetteville Shale 62 Appalachian Basin 59 shale formations 59 coalbed methane 59 horizontal drilling 57 Haynesville 57 fracking 57 hydraulic fracturing 56 Williston Basin 55 shales 55 drillers 55 Ford Shale 53 Montney 53 bed methane 52 Piceance Basin 52 horizontal wells 51 coal seam 51 Shale 51 CNX Gas 50 EOG 50 coal seam gas 50 natural gas 50 Powder River Basin 50 oil sands 49 coal seams 49 hydrocarbon 49 Chesapeake Energy 49 Bakken 48 Niobrara 48 drilling 47 EOG Resources 47 frac 46 Permian Basin 46 XTO 46 Range Resources 45 wells drilled 45 gas condensate 44 oilsands 44 Appalachia 44 Anadarko 43 Kashagan 43 Encana 43 Cardium 43 CBM 43 North Slope 43 deepwater Gulf 43 exploratory drilling 43 trillion cubic feet 43 tar sands 42 Alberta oilsands 42 deepwater 42 Anadarko Petroleum 41 wells 41 geologically 41 XTO Energy 41 hydrocarbons 41 Pennsylvania 41 hydrocarbon reserves 41 northeastern Pennsylvania 41 acreage 41 Three Forks 41 directional drilling 41 Petrohawk 41 coal mining 40 Wyoming 40 methane 40 Cabot Oil 40 Luzerne 40 DCNR 40 wellbore 40 Northeastern Pennsylvania 40 EOR 40 Mississippian 40 leasehold 39 XTO Energy Inc. 39 West Virginia 39 McMoRan 39 coal 39 Environmental Conservation 39 Anadarko Petroleum Corp. 39 Timor Sea 39 Consol Energy 39 Bcf 39 Luzerne County 39 Beaufort Sea 39 recoverable reserves 39 exploration 39 Drilling 39 mineral 38 Tioga 38 Tcf 38 driller 38 EnCana 38 Southern Tier 38 gas