na ▁Inc . ▁B NS ▁Category : Radio ▁stations ▁established ▁in ▁ 1 9 2 2 ▁Category : ES PN ▁Radio ▁stations ▁Category : 1 9 2 2 ▁establish ments ▁in ▁Ohio <0x0A> </s> ▁The ▁Mann ville ▁Group ▁is ▁a ▁strat ig raph ical ▁unit ▁of ▁C ret ace ous ▁age ▁in ▁the ▁Western ▁Canadian ▁Sed iment ary ▁Bas in . ▁▁ ▁It ▁takes ▁the ▁name ▁from ▁the ▁town ▁of ▁Mann ville , ▁Al berta , ▁and ▁was ▁first ▁described ▁in ▁the ▁North west ▁Mann ville ▁ 1 ▁well ▁by ▁A . W . ▁N auss ▁in ▁ 1 9 4 5 . ▁ ▁Lith ology ▁The ▁Mann ville ▁Group ▁consists ▁of ▁inter bed ded ▁contin ental ▁sand ▁and ▁sh ale ▁ ▁in ▁the ▁base , ▁followed ▁by ▁a ▁cal care ous ▁sand stone ▁member , ▁marine ▁sh ale , ▁gla u con it ic ▁sand stone ▁and ▁salt ▁and ▁pe pper ▁sand stone . ▁An ▁additional ▁non - marine ▁sequence ▁is ▁present ▁in ▁north - e astern ▁Al berta . ▁ ▁H ydro car bon ▁production ▁ ▁Bit umen ▁is ▁produced ▁from ▁the ▁Mc M ur ray ▁Form ation ▁at ▁the ▁Ath ab as ca ▁O il ▁S ands . ▁He avy ▁O il ▁is ▁produced ▁from ▁the ▁W ab iska w ▁Member ▁of ▁the ▁Clear water ▁Form ation ▁in ▁the ▁W ab as ca ▁oil ▁field , ▁and ▁from ▁multiple ▁form ations ▁in ▁the ▁Lloyd min ster ▁and ▁Prov ost ▁areas ▁in ▁eastern ▁Al berta ▁and ▁western ▁S ask atch ew