The Ohio Department of Natural Resources (ODNR) is releasing the 2012 production data right now (you can watch here). Of note: Oil production last year increased by 93%, to nearly 636,000 barrels. Gas production increased by 80%, to nearly 13 Bcf.
We will update this information as soon as it becomes available.
[Update: Production data can be found here.]
[Update: For more, see here and here.] (Bumped.)