Home » Info-Graphs Marcellus, Utica provide 85% of U.S. shale gas production growth since start of 2012 [CHART] Updated on Feb 2, 2020, 8:14 am Marcellus, Utica provide 85% of U.S. shale gas production growth since start of 2012 [CHART] Via EIA Related Articles Most Successful EU Companies By Profit Per Employee Surge in U.S. Seniors Applying for Entry-Level Positions CUNY City University Is The Best ‘Value For Money’ University In 2023 States With The Largest Decline In Homeownership Since 2000