In an extension of Hart Energy's unconventional resources playbook series, known for its in-depth coverage of the most compelling shale plays in North America, the 2013 Unconventional Yearbook presents the most important facts and figures on the Top 20 global resource plays. This third in an annual series of yearbooks provides an overview of current activity with snapshots of the regional plays, profiles of key players, a review of technology, a look at midstream activity, and economic analysis and data.