Related by context. Frequent words. (Click for all words.) 61 drilling 60 driller 58 fracking 58 hydraulic fracturing 57 shale 56 horizontal drilling 56 Marcellus Shale 55 drilling rigs 53 rigs 52 shale gas 50 XTO 50 offshore drilling 50 Barnett Shale 49 miners 49 deepwater drilling 49 oil sands 49 wells 48 drilling rig 48 oil 48 prospectors 48 Drilling 48 deepwater 47 Marcellus 47 oilfield 47 wells drilled 47 Chesapeake Energy 46 natural gas 46 North Slope 46 Anadarko 45 EOG 45 mining 44 EnCana 44 oilsands 44 Minerals Management 44 Anadarko Petroleum Corp. 43 Petrobras 43 exploratory drilling 43 hydrocarbons 43 Kerr McGee 43 Deepwater Horizon 42 hydrocarbon 42 geologists 42 drill 42 wellhead 42 landowners 42 offshore 42 tar sands 42 bed methane 42 horizontal wells 42 Schlumberger 41 BP 41 rig 41 oilfields 41 coal miners 41 ConocoPhillips 41 Pemex 41 ranchers 41 Exxon Mobil 41 refiners 41 Deepwater Horizon rig 41 explorers 41 Macondo 40 Ken Salazar 40 subsurface 40 companies 40 rig exploded 40 gas 40 Transocean 40 coal seam gas 40 Exxon 40 Drillers 40 DEP 39 Prudhoe Bay 39 coal mining 39 gusher 39 drill rig 39 exploration 39 StatoilHydro 39 Cairn 39 Salazar 39 BLM 39 Consol 38 EnCana Corp. 38 Outer Continental Shelf 38 firms 38 Deepwater 38 windfall profits 38 Freudenthal 38 Exxon Mobil Corp. 38 environmentalists 38 seismic 38 ANWR 38 BP PLC 38 brine 38 PXP 38 Wyoming 38 Oilfield 38 contractors 38 drugmakers 38 onshore 37 coal mines