Related by context. Frequent words. (Click for all words.) 67 Wolfcamp 65 Utica Shale 65 sandstone reservoirs 63 Utica shale 63 Arkoma Basin 62 Woodford Shale 62 Appalachian basin 62 Albany Shale 62 Haynesville shale 61 shales 61 Anadarko Basin 60 areal extent 60 Fayetteville shale 60 wellbores 59 Granite Wash 59 Austin Chalk 58 Barnett shale 58 unconventional shale 58 Appalachian Basin 57 Lower Cretaceous 57 Horseshoe Canyon 57 sedimentary basin 57 shale 57 Lower Shaunavon 57 Horizontal drilling 57 coalbed methane CBM 57 recompleted 57 Bakken shale 57 graben 57 undrilled 56 sedimentary basins 56 Carbonate 56 Wolfberry 56 alluvial deposits 56 Georgina Basin 56 coal seams 56 fracs 55 horizontal wells 55 Hosston 55 sandstones 55 Anticline 55 stratabound 55 Bakken Shale 55 Shale 55 horizontal lateral 55 Maverick Basin 55 skarn mineralization 54 open pittable 54 depositional 54 frac sand 54 coalbed methane 54 downdip 54 undeveloped acreage 54 reservoir sands 54 Deep Basin 54 Geologically 54 Bakken formation 54 porphyry deposits 54 extensional 54 CBM wells 54 Fayetteville Shale 54 siltstone 54 Uinta Basin 54 minable 53 geological formations 53 anticline 53 massive sulphide deposits 53 Monument Butte 53 Denver Julesburg Basin 53 auriferous 53 Marcellus shale 53 Williston Basin 53 Formation 53 St. Lawrence Lowlands 53 Cherokee Basin 53 overlies 53 Gippsland Basin 53 fracture stimulated 53 Uranium mineralization 53 hydrocarbon bearing 53 Bakken Formation 53 Montney 53 updip 53 Marcellus 53 surface trenching 53 infill wells 52 sulphide bearing 52 volcanogenic massive sulphide VMS 52 Marcellus wells 52 geologically 52 volcanogenic massive sulphide 52 mineralizing system 52 Paleocene 52 jasperoid 52 Haynesville 52 siliceous 52 geologic formations 52 lode gold 52 Elmworth 52 Shaft Zone 52 Haynesville Shale