Natural Gas STAR Program
The Natural Gas STAR Program is a flexible, voluntary partnership that encourages oil and natural gas companies to adopt cost-effective technologies and practices that improve operational efficiency and reduce emissions of methane. Through this work, the oil and natural gas industry, in conjunction with Natural Gas STAR, has pioneered some of the most widely–used, innovative technologies and practices that reduce methane emissions.
Natural Gas STAR industry partners have operations in all of the major industry sectors—production, gathering and processing, transmission, and distribution—and represent 60 percent of the natural gas industry in the United States, including 18 of the top 25 natural gas production companies.
http://www.epa.gov/gasstar/