Natural Gas Drilling Rigs (IMAGE) U.S. National Science Foundation Caption NSF's SRN for natural gas drilling and its effects is focused on the Rocky Mountain region. Credit Alfred Eustes, Colorado School of Mines 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.