target
formation - The underground hydrocarbon-bearing
rock that the driller seeks and has applied for
permits to drill into. Formations in NYS
which have been the target of natural gas
drilling operations include the Herkimer,
Trenton-Black River, and others.
Formations differ in their depth and type of
rock or composition; therefore, drillers use
different techniques to extract the gas,
depending on the properties of the target
formation.