### Question
How does the law define petroleum?


### Answer
Under *42 U.S.C. § 6991*, **petroleum** is defined as:

> petroleum, including crude oil or any fraction thereof which is liquid at standard conditions of temperature and pressure (60 degrees Fahrenheit and 14.7 pounds per square inch absolute)

#### Citation:
  - *42 U.S.C. § 6991*
  - Heading: **CHAPTER 82-SOLID WASTE DISPOSAL > SUBCHAPTER IX-REGULATION OF UNDERGROUND STORAGE TANKS**

