The Marcellus shale play runs through northern Appalachia, primarily in Pennsylvania, West Virginia, New York, and Ohio. It is part of the Devonian black shale and the thickness of the gas-producing rock is as much as 900 feet. The formation runs an estimated 600 miles north to south, and is estimated to hold as much as 500 trillion cubic feet of natural gas, about 50 tcf of which is recoverable using current technology. It is one of the richest gas fields in North America.
The proximity to customers in Eastern urban centers is what makes the Marcellus so desirable. Fort Worth-based Range Resources was one of the early players in the Marcellus and still has a huge position in the play. Norway’s Statoil has signed a joint venture with Chesapeake Energy to work together in the Marcellus, and other US and foreign companies also are involved in drilling and infrastructure development.

It's mostly sunny in Pennsylvania after Nov. 2 mid-term elections
Nov 1, 2010
The Nov. 2 elections were a boon to shale operators in Pennsylvania, the state with most Marcellus Shale production and reserves.
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It's mostly sunny in Pennsylvania after Nov. 2 mid-term elections
Nov 1, 2010
The Nov. 2 elections were a boon to shale operators in Pennsylvania, the state with most Marcellus Shale production and reserves.
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Rex Energy names Zak to board
Oct 26, 2010
As the company works to complete wells in the Niobrara and Marcellus shales, Rex Energy Corp. has added John J. Zak to the board of directors. |
Westmont Resources to extend Marcellus reach yet again
Oct 7, 2010
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Anschutz Exploration to sell Appalachian oil, gas properties
Oct 6, 2010
Anschutz Exploration Corp. has agreed to sell the Appalachian portion of its divestiture program to an undisclosed buyer. Terms were not disclosed. |
Enerplus acquires Marcellus acreage, looks for corporate status
Oct 1, 2010
In its quest to pursue growth and convert from an income trust to a corporation in the wake of changes in Canadian federal tax legislation, Enerplus Resources Fund has announced plans for a special unitholder meeting to gain approval for the plans. |
Gov. Ridge, MSC unveil sweeping commitment to community principles
Oct 1, 2010
The Marcellus Shale Coalition (MSC) and former Pennsylvania Gov. Tom Ridge, an MSC strategic advisor, have unveiled what they call a “sweeping set of principles” by which the oil and gas industry will live by and embrace. |
LINN Energy's Permian Basin deal is month's largest
Oct 1, 2010
For the first time in months, the largest US oil and gas transaction for the past 30 days was not in an unconventional resource play.
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Gastar Exploration enters $70M Marcellus JV with Atinum
Oct 1, 2010
Gastar Exploration Ltd. has entered into a $70 million Marcellus shale joint venture agreement with an affiliate of Seoul, South Korea-based investment firm Atinum Partners Co. Ltd. as part of the growing trend of international player involvement in unconventional resources in North America.
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Ethane disposition poses a risk for Marcellus Shale production
Oct 1, 2010
Producers in the Marcellus shale may be forced to curtail natural gas production unless they can come up with a viable way to dispose of ethane, an associated gas, according to a new study from BENTEK Energy.
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Misguided Marcellus Shale tax would cost Pennsylvania
Sep 27, 2010
A commentary by the Marcellus Shale Coalition on the proposed tax on Marcellus Shale producers. |
Gastar Exploration enters $70M Marcellus JV with Atinum
Sep 22, 2010
Gastar Exploration Ltd. has entered into a $70 million Marcellus shale joint venture agreement with an affiliate of Seoul, South Korea-based investment firm Atinum Partners Co. Ltd. as part of the growing trend of international player involvement in unconventional resources in North America. |
Gas tax in Pennsylvania will have minimal impact on state's economy
Sep 22, 2010
A new study by Penn State University released on Sept. 20 indicates the proposed Marcellus Shale gas tax in Pennsylvania will have a positive, but minimal impact on the state’s economy. |
Magnum Hunter secures Marcellus takeaway with DCP Midstream JV
Sep 17, 2010
Through its wholly-owned subsidiary, Eureka Hunter Pipeline LLC, Magnum Hunter Resources Corp. has signed a Marcellus shale gas gathering joint venture agreement with DCP Midstream Partners LP and is now turning its sights on well testing. |
Pennsylvania DEP releases Marcellus shale production data online
Sep 13, 2010
On Friday, September 10, Secretary of the Pennsylvania Department of Environmental Protection John Hanger announced that preliminary production data for Marcellus Shale natural gas wells in the state is now available online for the first time, offering more transparency for the public. |