Thank you for your question, but I'm not certain exactly what you are asking.
You can find BTU ratings for different types of energy sources on this Penn State University energy calculator
From this page , you sill need to click on the Energy Cost Calculator at the bottom of the page. It is designed to compare one source against another.
If instead your question is working through ALL the energy resources produced or not yet "tapped into", then that is beyond the scope of our expertise, and I suggest you do some research on the US Department of Energy sites -
If you have a more specific need for information, and I have missed the mark, please provide some more details about what you would like to know.