"state_well_number","group_number","c_s_o_indicator","diameter_csg_scn","top_depth","bottom_depth"
5659801,1,"C",8,0,10
5659801,2,"C",5,0,320
6902501,1,"C",6,,
6911302,1,"C",6,0,182
6911302,2,"O",7,182,360
6911303,1,"C",6,0,189
6911303,2,"O",7,189,400
6911304,1,"C",6,0,59
6911304,2,"C",5,-4,104
6911304,3,"S",5,104,120
6911305,1,"C",6,0,60
6911305,2,"O",6,60,120
6918303,1,"C",6,0,280
6918303,2,"O",,280,640
6918304,1,"C",30,0,20
6918304,2,"C",24,0,42
6918305,1,"C",7,0,
6918307,1,"C",17,0,20
6918307,2,"S",17,20,40
6919401,1,"S",,605,685
6919401,2,"O",,743,820
6920101,1,"C",5,0,27
6920101,2,"S",5,27,32
6920101,3,"C",5,32,63
6920101,4,"S",5,63,73