The EPA has issued new rules controlling the release of air toxics and other air pollutants from natural gas wells. Mother Jones and Star-Telegram articles on the rules.
Here is text from the EPA Press Release:
On April 17, 2012, the U.S. Environmental Protection Agency (EPA) issued cost-effective regulations, required by the Clean Air Act, to reduce harmful air pollution from the oil and natural gas industry while allowing continued, responsible growth in U.S. oil and natural gas production. The final rules include the first federal air standards for natural gas wells that are hydraulically fractured, along with requirements for several other sources of pollution in the oil and gas industry that currently are not regulated at the federal level. Based on public comment, EPA made a number of changes to the proposed rules to increase compliance flexibility while maintaining comparable environmental benefits, streamline notification, recordkeeping and reporting requirements, and strengthen accountability.