The oil and gas industry has said the EPA has overestimated emissions of methane and argued that they already were working to reduce pollution, without the agency's intervention.
The EPA last year issued the first-ever standards to control smog- and soot-forming gases from gas wells site, and updated existing rules to reduce cancer-causing pollution, such as benzene, from other equipment.
The agency, in response to the report, agreed to develop a comprehensive strategy to improve its pollution figures.
An industry association, America's Natural Gas Alliance, had not seen the report and had no comment late Thursday.
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Online:
Inspector general's report: http://1.usa.gov/XPdsCr
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