These links provide access to freely available sources of U.S. and International energy data, future projections, and basic energy concepts and issues:

U.S. Energy Data
Annual Energy Review - US Energy Information Administration
Renewable Energy Data Book - US Department of Energy
Transportation Energy Data Book - US Department of Energy
International Energy Data
International Energy Statistics - US Energy Information Administration
International Energy Statistics – International Energy Agency
Statistical Review of World Energy - BP
Future Energy Projections
Annual Energy Outlook (US-focused) - US Energy Information Administration
Short-Term Energy Outlook (US-focused) - US Energy Information Administration
International Energy Outlook - US Energy Information Administration
World Energy Outlook – International Energy Agency (available for free using your Duke Netid through OECD iLibrary)
The Outlook for Energy: A View to 2040 - ExxonMobil
BP Energy Outlook 2035 - BP
Shell Scenarios – Shell
Energy Basics
Energy Explained - US Energy Information Administration
Energy Literacy - US Department of Energy
What You Need to Know About Energy - National Academy of Sciences
Energy MOOCs
Oil and Gas Industry Operations and Markets - Coursera