Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_15986020_3 (opponents VARCHAR, oilers_points VARCHAR)
### Question:
What was the total opponents points for the game were the Oilers scored 21?
### Answer:
SELECT opponents FROM table_15986020_3 WHERE oilers_points = 21