Dallas Morning News | Azle earthquakes likely caused by oil and gas operations, study says Dallas Morning News A pickup passes a ranch entrance outside of Reno in rural Parker County. Oil and gas operations are the most likely cause of dozens of earthquakes that began rattling the North Texas towns of Azle and Reno in November 2013, a group of SMU scientists ... Oil and Gas Wells to Blame For More North Texas Earthquakes Small north Texas quakes likely linked to oil, gas operations -study |