CHEN-Simplified-Supply-Chain (IMAGE) Texas A&M University Caption The energy price index reflects the changes in energy prices resulting from the type of energy sources available and their supply chains. Credit Rachel Barton/Texas A&M Engineering Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.