The F. C. Deemer repository at NETL consists of over 10,000 samples of drill cuttings from historic wells within the Appalachian Basin in Pennsylvania. The samples are from 24 wells within Jefferson and Clearfield counties. These wells were drilled by independent natural gas driller F. C. Deemer from the 1920's to 1950's. All of the wells contain samples from Devonian age rocks including multiple samples of Marcellus shale throughout the region. The data presented with this repository includes digitized well records and production reports, stratigraphic type logs, maps, and well information spreadsheets.