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_name_8 (assets__billion_ INTEGER, market_value__billion_$_ VARCHAR, industry VARCHAR, rank VARCHAR)
### Question:
How many Assets (billion $) has an Industry of oil and gas, and a Rank of 9, and a Market Value (billion $) larger than 121.7?
### Answer:
SELECT SUM(assets__billion_) AS $_ FROM table_name_8 WHERE industry = "oil and gas" AND rank = 9 AND market_value__billion_$_ > 121.7