The overall specialty chemicals volume index was up 4.9 percent on a year-over-year (Y/Y) 3MMA basis. The index stood at 109.7 percent of its average 2012 levels. This is equivalent to 7.56 billion pounds (3.43 million metric tons). The downturn in the oil and gas sector had affected headline volumes and along with weakness in other segments resulted in negative year-earlier comparisons from second quarter 2015 through second quarter 2016. Led by the recovery in the oil and gas sector, headline volumes are now positive and strong. On a Y/Y basis, there were gains among 20 market and functional specialty chemical segments.