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.
Here are a few reactions from some key parties to Ohio Gov. John Kasich signing a wide-ranging energy bill that includes new rules on shale drilling on Monday.
1. The Ohio Petroleum Council (OPC), in its press release, welcomed the enactment of Senate Bill 315 and efforts of the governor and Ohio General Assembly to ensure safe and responsible development of Ohio's deep shale reserves.
"The potential benefits of natural gas and oil production in Ohio's Utica and Marcellus shale -- part of one of the world's largest known resources of natural gas -- present a golden opportunity to create tens of thousands of new jobs and boost the economy throughout the state," said OPC Executive Director Terry Fleming.
"The legislation was vetted through a thorough process and included compromises by both the industry and legislators. Throughout the process, the oil and natural gas industry stated its support for strong regulations that, in addition to promoting safe operations, create certainty within Ohio's regulatory structure for continued shale exploration and development in the Utica shale.
"It is also our hope that these new regulations, which passed with industry support, give Ohioans peace of mind regarding the exploration and development of the shale resources in the state. Ohioans should rest assured that it will continue to be done in a safe manner with proven technology that has been used for over sixty years.
"We are pleased to see the new regulations partially reflect industry best practices developed by the American Petroleum Institute," said Fleming.
His group is an arm of API, which represents more than 500 oil and natural gas companies.
2. Daniel Alfaro of Energy in Depth-Ohio, a pro-drilling industry group:
"As Ohio continues to emerge as a leader in domestic energy production with the development of Utica shale, it is also setting th standard in its regulatory system for developing states across the U.S.
"The passage of this bill gives our state the most robust, transparent and comprehensive oil and gas regulations in the country and allows the industry to continue development in the Utica and continue putting Ohio back to work.
"This is something Ohioans across the board should be proud of."
3. Kimberly Gibson, executive director of Advanced Energy Economy Ohio:
"We applaud Governor Kasich and the state legislature for working together to develop and deliver a comprehensive state energy plan that will help Ohio's advanced energy industry grow.
"This law strikes the right balance between preserving current advanced energy markets and expanding opportunities for waste energy recovery and combined heat and power -- two technologies key to improving Ohio's manufacturing competitiveness.
"This balanced approach will help maximize job creation, spur investment, and expand the state's manufacturing base."