About 3,000 participants are expected in Cleveland on Wednesday and Thursday for the Ohio Oil & Gas Association's Oilfield Expo 2012.
The event will run at the International Exposition Center.
The event was held last year in Canton.
More than 250 exhibitors are expected for what's billed as the nation's only all-indoor trade and equipment show.
Hours are 9 a.m. to 5 p.m. Wednesday, Dec. 5, and 9 a.m. to 4 p.m. Thursday, Dec. 6.
There will be an industry symposium on what's happening in Ohio from 9 a.m. to 12:30 p.m. Thursday.
There will be an industry technical conference on drilling from 1 to 4 p.m. Wednesday.
Admission is $20 for adults and $10 for students.
Chesapeake Energy Corp,the Oklahoma-based firm is the No. 1 driller in Ohio.
Rig Count Interactive Map by Baker Hughes, an energy services company.
Shale Sheet Fracking, a Youngstown Vindicator blog.
The Ohio Environmental Council, a statewide eco-group based in Columbus.
Earthjustice, a national eco-group.
People's Oil and Gas Collaborative-Ohio, a grass-roots group in Northeast Ohio.
Concerned Citizens of Medina County, a grass-roots group.
No Frack Ohio, a Columbus-based grass-roots group.
Fracking: Gas Drilling's Environmental Threat by ProPublica, an online journalism site.
Pipeline, blog from Pittsburgh Post-Gazette on Marcellus shale drilling.
Allegheny Front, environmental public radio for Western Pennsylvania.