Royal Dutch Shell
Global oil and gas corp
•
Member
EQT Corporation
Pittsburgh-based oil and gas driller
•
Member
Talisman Energy Inc.
Oil and gas company
•
Member
WPX Energy Inc.
Oil and natural gas exploration and production subsidiary of Williams Cos. Inc.
•
Member
Chesapeake Energy
Natural gas producer
•
Member
Southwestern Energy
Shale gas development company
•
Member
Seneca Resources Corporation
E&P subsidiary of National Fuel Gas Company
•
Member
XTO Energy Inc.
Crude Petroleum and Natural Gas; sold to Exxon in 2009
•
Member