When referencing Appalachian gas prices the best place to track the price of Appalachian gas is this site http://www.naturalgasintel.com/data/data_products/daily?region_id=appalachia&location_id=NEACNG
This site will give you the prices and the futures for Appalachian gas trading in the Dominion North, South and Leidy hubs as well as others. A lot of times prices are posted in blogs without reference to where that price was found. Appalachian natural gas prices have not been in line with the Henry Hub or the NYMEX for almost a decade. A lot of times I see both professionals and royalty owners quoting prices and those prices are from the NYMEX or the Henry Hub...gas in WV is not being sold in Louisiana...as much we would like it to be.