GENERALIZED STRATIGRAPHIC CHART FOR WEST VIRGINIA AREA WEST OF THE ALLEGHENY FRONT Geologic SHOWING KEY OIL AND GAS RESERVOIRS System Drillers’ and Series West Southern West Virginia East West Northern West Virginia East Terms Permian Dunkard Gr Dunkard Gr Carroll Monongahela Gr Monongahela Gr U Conemaugh Gr Conemaugh Gr Burning Springs, Gas Sands M Allegheny Fm Allegheny Fm Horesneck, Macksburg 300 & 500 2nd Cow Run/Peeker Kanawha Fm First Salt, L New River Fm Pottsville Gr Pottsville Fm Second Salt, Third Salt

Pennsylvanian Pocahontas Fm Bluestone Fm Princeton Ss Princeton Ss Princeton ,Ravencli ,Maxon U Mauch Chunk Gr Hinton Fm Hinton Fm Mauch Chunk Gr Blue Monday & Little Lime Blueeld Fm Blueeld Fm Big Lime,Keener Big Injun M Greenbrier Ls Greenbrier Ls

Maccrady Fm Cuyahoga Fm Rockwell Mbr Mississippian L Pocono Big Injun, Squaw Price Fm Riddlesburg Mbr Sunbury Sh Sunbury Sh Price Fm Weir, Gantz Berea Ss 50 ft Oswayo Fm Bedford Sh Riceville Fm Oswayo Mbr 30 ft. Cleveland Sh Mbr Greenland Gap Fm Rowlesburg Fm Gordon & Gordon Stray Chagrin Sh Mbr Venango Fm Hampshire Gr Ohio Sh Cannon Hill Fm Fourth

Famennian Huron Mbr Fifth Bayard & Elizabeth “Dunkirk bed” Greenland Gap Fm U Java Fm Warren “Pipe Creek bed” Brallier Fm Balltown Angola Sh Mbr Speechley West Falls Fm Brallier Fm Rhinestreet Sh Mbr Rhinestreet Sh Bradford & Riley Benson Cashaqua Sh Mbr Alexander Sonyea Fm Elk (s) Middlesex Sh Mbr M’sex Sh Sycamore

Frasnian West River Sh Mbr Genesee Fm Harrell Sh Geneseo Sh Mbr Burket Sh Mbr

Devonian Tully Ls Tully Ls

Givetian Hamilton Gr Mahantango Fm Mahantango Fm Purcell M Oatka Creek Mbr Marcellus Fm Marcellus Fm Cherry Valley Mbr Cherry Valley Eifelian Tioga Ash Beds Union Springs Mbr Onondaga Ls Huntersville Chert Huntersville Chert Needmore Sh

Oriskany Ss L Oriskany Ss Oriskany Helderberg Ls Mandata Sh Helderberg Ls/Gr Shriver Chert Bass Is. Fm Keyser Fm Keyser Fm Tonoloway Fm Salina Fm Tonoloway Fm U Salina Gr Wills Creek Fm ? Wills Creek Fm Newburg Williamsport Ss McKenzie Ls Lockport Dol McKenzie Ls Keefer Ss Rochester Sh Keefer Ss Silurian Keefer/Big Six Rose Hill Fm Rose Hill Fm L Tuscarora Ss Tuscarora Ss Juniata Fm Juniata Fm Oswego Ss U Reedsville Sh Reedsville Sh Martinsburg Sh Martinsburg Sh Utica Sh Trenton Gr Trenton Gr Trenton/Black River M Black River Gr Black River Gr St. Paul Gr St. Paul Gr Wells Creek Fm Wells Creek Fm Ordovician St. Peter Ss L Beekmantown Fm/Gr Beekmantown Dol Knox Gr Rose Run Knox Gr Rose Run Ss Rose Run Ss U Copper Ridge Dol Copper Ridge Dol Marysville Ls Conasauga Gr Conasauga Gr M Mount Simon Ss Elbrook Fm Rome Fm Waynesboro Fm Waynesboro Fm Tomstown Dol Tomstown Dol Cambrian L Chilhowee Gr Chilhowee Gr basal sand

Strata of this age pC Grenville Complex Grenville Complex not present