As in LA. some of the most complete factual reports of leasing activity is made available through auctions of publicly owned mineral tracts.

Chesapeake Energy, Energy Corp., Exco Resources Inc., Seneca Resources Corp., Anadarko Petroleum Corp. and Penn Virginia Corp. bid almost $130
million for Marcellus drilling rights in six tracts in the Elk,
Moshannon, Sproul, Susquehannock and Tioga State forests. According to
IHS Inc., Seneca acquired a 10,493-acre parcel in the Tioga State
Forest in Tioga County and a 7,441-acre tract in the Susquehannock
State Forest in Potter County. Also in Susquehannock State Forest, Penn
Virginia received a 3,698-acre tract. Chesapeake bid low and received a
2,952-acre tract in Cameron County’s Elk State Forest. In Clearfield
County, Exco won 4,639 acres in Moshannon State Forest. Rounding out
the bidders was Anadarko, which acquired a 2,724-acre tract in Clinton
County’s Sproul State Forest. The per-acre average bid was about
$4,100. The state’s Department of Conservation and Natural Resources in
Harrisburg is in the final review process. The state will receive 18%
royalties.