How about this (untested): 

my $energy;
while (<FILE>) {
   last if /^\s+total/;
   unless ($energy) { $energy = /^\s+energy/; next }
   my @vals = split;
   # ... other stuff here
}

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duff

In reply to Re: Reading column data from a file by duff
in thread Reading column data from a file by pattobw

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