Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_2973 ( "April 2013 Cum. Rank" real, "Name" text, "Rank (all) 2012" real, "Rank (all) 2013" real, "2013 Rank (oil companies)" text, "2013 rev (bil. USD )" text, "2013 Profit (mil. USD )" real, "Assets (bil. USD )" text, "Market cap March 15 (mil. USD )" real )

### Question ###
How many companies named cenovus energy?

### Accurate SQL ###

SELECT COUNT("Rank (all) 2013") FROM table_2973 WHERE "Name" = 'Cenovus Energy'