This single site contains links to all DOE data centers as well as other energy-related resources (patents, Energy Administration, research and development, bibliographic databases, Science.gov, etc.). Most of the data centers have raw data. The Energy Information Administration presents data in table format for more general users.
This is the U.S. Government's official site for energy statistics. It contains a comprehensive array of statistics arranged by topic for easy use. Data is available as PDF, Excel, or HTML files in most cases. Information is available at the national and state levels as well as some international data.
This site presents data on Kansas oil and gas wells, including production and mapping features. Zipped data files and GIS files are available from the site. The site also contains links to the GEMINI Project, but access to that geo-engineering modelling web application is limited to registered users.