Syntax error needs explanation

[Rich Shepard]

I have the following script:

select c.company_nbr, c.company_name, i.industry, 
from companies as c, industry as i, enforcement as e
where exists (
  select c.company_nbr, count(e.action_date), sum(e.penalty_amt)
  from e.enforcement
  where c.company_nbr = e.company_nbr
  )
group by industry
order by industry;
When I run it psql reports an error:
psql:companies-with-enforcement-actions.txt:127: ERROR:  syntax error at or near 
"company_nbr"
LINE 1: company_nbr |               company_name
        ^
and I'm not seeing the error. What am I missing?

TIA,

Rich