Marcellus Formation Thickness Members of the Marcellus Formation from West to East in New York

| Buffalo | Rochester | Syracuse | Utica | Albany |
|---|---|---|---|---|
| Oatka Creek shale | Oatka Creek shale | Cardiff dark gray shale | Pecksport shale | (Mt. Marion Fm.) |
| Oatka Creek shale | Oatka Creek shale | Cardiff dark gray shale | Solsville shale and sandstone | Solsville shale and sandstone |
| Oatka Creek shale | Oatka Creek shale | Cardiff dark gray shale | Bridgewater shale | Otsego |
| Oatka Creek shale | Oatka Creek shale | Chittenango black shale | Chittenango black shale | Berne |
| Cherry Valley limestone | Cherry Valley limestone | Cherry Valley limestone | Cherry Valley limestone | Stony Hollow shale & limestone |
| (Seneca Mb.) (Onondaga Fm.) | Union Springs shale and limestone | Union Springs shale and limestone | Union Springs shale and limestone | Stony Hollow shale & limestone |
| (Seneca Mb.) (Onondaga Fm.) | (Onondaga Fm.) | (Onondaga Fm.) | Union Springs shale and limestone | Union Springs shale and limestone |