The Division of Oil and Gas Resources Management released the fourth quarter production results for 2013 yesterday. See here. Among items of interest - Ohio produced 1.44 million barrels of oil and over 43 Bcf of natural gas over that period. According to this article in the Canton Repository: "That marked an 8 percent jump in oil and a 28 percent spike in natural gas over the third quarter. Total brine production increased 1.7 percent to 1,023,735 barrels."