Oil derrick (IMAGE) University of California - Riverside Caption Oil production generates large volumes of wastewater, which is often injected into the ground as a means of disposal to avoid polluting surface waters. The injections can cause earthquakes. Credit UCR Usage Restrictions No restrictions. License Public Domain 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.