1. cf,schn,sohu
2. snp,ceo,cmc,cpo,gt,x,sirf,cea
3.ccj,crs,grmn,hurn,ma,sun,rig
4.agu,clf,cam,cry,cyno,xray,edo,xom,ftk,mro,mr,nmx,osk,tso,usu,vrsn,dsx
5. atro,cvx,nrg,nyx

cf,schn,sohu

snp,ceo,cmc,cpo,gt,x,sirf,cea

ccj,crs,grmn,hurn,ma,sun,rig

agu,clf,cam,cry,cyno,xray,edo,xom,ftk,mro

mr,nmx,osk,tso,usu,vrsn,dsx

atro,cvx,nrg,nyx