### Question
How is the "reservoir" defined?


### Answer
The term **reservoir** is defined in *15 U.S.C. § 3301* as follows -

> any producible natural accumulation of natural gas, crude oil, or both, confined—


(A) by impermeable rock or water barriers and characterized by a single natural pressure system

#### Citation:
  - *15 U.S.C. § 3301*
  - Heading: **CHAPTER 60-NATURAL GAS POLICY**

