Question: The Parshall Oil Field is an oil field producing from a rock unit from the Late Devonian to Early Mississippian age occupying about how many sqmi?
Sentence (from "Parshall Oil Field"): Parshall’s break-even price is at US$38/barrel, which is the lowest on the Bakken Formation; overall, Bakken’s break-even point is of US$62/barrel.
Relevant evidence: No