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Satellite analysis names Energy Transfer largest US methane 'super-emitter'

scienceSep 15, 202636152

A UCLA Emmett Institute study using satellite data names an Energy Transfer gas-processing facility near Shreveport, Louisiana, as the largest single methane "super-emitter" in the United States. From January 2025 to June this year the Shreveport site emitted methane at an average rate of 1.56 tonnes per hour, about 15 times the threshold defined in an EPA Biden-era super-emitter program. The study links operators to large plumes by combining satellite observations with public records and identifies Energy Transfer as linked to four of the 15 largest sites and responsible for 75 methane plumes overall, three times as many as the next operator. Other major operators highlighted include Enterprise Products, Targa Resources and Enlink. Cara Horowitz, executive director of the UCLA Emmett Institute, said many sites are repeat offenders and that the satellite record makes previously invisible emissions plainly visible and deserving of regulatory attention. Energy Transfer did not answer questions about whether the Shreveport emissions were intentional venting or leaks; the company has previously reported using optical gas imaging inspections at hundreds of facilities. The report comes while implementation of the EPA super-emitter program is on hold under the current administration, leaving satellite-identification as a primary public record of these large releases.

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