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_17918238_1 (maximum_diameter VARCHAR, owner_operator VARCHAR)
### Question:
What is Esperance pipeline co total diameter?
### Answer:
SELECT maximum_diameter FROM table_17918238_1 WHERE owner_operator = "Esperance Pipeline Co"