Revision History for USGS Fact Sheet 2012-3102 Donald L. Gautier, Janet K. Pitman, Ronald R. Charpentier, Troy Cook, Timothy R. Klett, and Christopher J. Schenk Potential for Technically Recoverable Unconventional Gas and Oil Resources in the Polish-Ukrainian Foredeep, Poland, 2012 ----------------------------------------------------- Posted online at http://pubs.usgs.gov/fs/2012/3102/ July 17, 2012 -----------------------------------------------------