American Petroleum Institute
Center for Energy Economics, BEG-UT-Austin
Council of Petroleum Accountants Societies (COPAS) Inc.
EIA - Forecasts and Analysis of Energy Data
EIA - Markets & Finance - Analysis & Projections
EIA - Natural Gas Pipeline Network
EIA - Short Term Energy Outlook
EIA U.S. Natural Gas Prices
EIA Weekly Natural Gas Storage Report
EIA WTI Future Contract Price History
EIA Natural Gas Weekly Update
Energy in Depth
Energy Mineral Division of American Assn of Petroleum Geologists - Gas Shales
energynet.com auction service
Glossary Schlumberger Oilfield
Independent Oil & Gas Association of West Virginia, Inc.
Independent Petroleum Association of America (IPAA)
Institute of Petroleum Accounting, UNT
International Energy Agency
IRS Oil & Gas Handbook
Keystone Energy Forum Keystone Energy Forum
Marcellus Shale Coalition
Mineral Rights Oil & Gas Lease and Royalty Information
National Pipeline Mapping System (NPMS)
NaturalGas.org
Newsletters - Ryder Scott
NYMEX Henry Hub Natural Gas Prices
Ohio Department of Natural Resources
PADEP eFACTS
Penn State Marcellus Center for Outreach and Research - Maps
PIOGA
Revenue Procedure 2004-19 Safe Harbor for Reserves (Cost Depletion)
Society of Petroleum Engineers (SPE)
U. S. Lease Price Report
U.S. Energy Information Administration
Unconventional Gas Center - Marcellus Companies
West Virginia Office of Oil and Gas