Hi, May be of interest: Assessment of Undiscovered Conventional and Continuous Oil and Gas Resources of the Baltic Depression Province, 2014 http://pubs.usgs.gov/fs/2015/3015/ Recent Trends in Cuba’s Mining and Petroleum Industries http://pubs.usgs.gov/fs/2015/3032/ Enjoy the day, Emily Emily C. Wild Librarian (Physical Scientist) U.S. Geological Survey, Denver Library Denver Federal Center ph: (303) 236-1003 [log in to unmask] USGS Libraries: http://library.usgs.gov Tutorials: http://tinyurl.com/lh3tmua Profile: http://profile.usgs.gov/ecwild