The flares burning at oil and gas sites across the Permian Basin could be among the region’s largest methane emitters. A new helicopter survey by researchers with the Environmental Defense Fund (EDF) found that more than one in every 10 flares they checked were either unlit—venting uncombusted methane straight to the atmosphere—or only partially burning the gas they were releasing.
Based on infrared images gathered from hundreds of facilities, the scientists calculate that Permian flaring accounts for more than 300,000 metric tons of methane pollution a year—3.5 times more methane than current EPA estimates. Methane is a potent greenhouse gas and the main ingredient in natural gas.
“Flaring and methane are two halves of the same problem,” said Colin Leyden, EDF director of regulatory and legislative affairs. “The data shows you can’t fix one without the other. Reducing waste and pollution from routine flaring should be part of both short- and long-term solutions as operators and the Railroad Commission consider different paths back from the current crisis.”
According to satellite data, Permian operators sent 280 billion ft3 of gas worth about $420 million up their flare stacks in 2019, more than enough to supply every home in Texas.
The Texas Railroad Commission, which regulates oil and gas operations, has been increasingly concerned with flaring waste. Commissioners may consider flaring as a metric in a policy called “proration,” which allocates production limits among state producers based on a variety of factors.
“For 7 years, the commission has stamped ‘yes’ on 27,000 flaring permit applications,” Leyden said. “Proration offers an ideal chance to stand up for all Texans and address the most obvious waste occurring in the oil patch.”
New Mexico currently lacks any requirements to reduce oil and gas methane emissions. As a result, methane waste costs New Mexico taxpayers an estimated $43 million a year in missed revenue. Gov. Michelle Lujan Grisham has made addressing methane a priority for her administration and has pledged to enact a nation-leading suite of methane waste and pollution controls.
“Flaring wastes hundreds of millions of dollars a year worth of valuable resources that belong to the people of New Mexico,” said Jon Goldstein, EDF’s director of regulatory and legislative affairs. “Without proper safeguards, it also poses a serious threat to public health and the climate. Both waste and pollution from flares must be a part of a comprehensive suite of controls as the state moves to enact methane regulations this year.”
The helicopter survey is the latest product of EDF’s year-long PermianMAP initiative to measure methane emissions using aircraft, stationary towers, and ground-based mobile sensors. The helicopter survey shows that malfunctioning flares are not just an intermittent issue. Fully 25% of problem flares initially identified had recurring emission problems at a later visit. The survey comes on the heels of satellite data released showing total oil and gas methane emissions in the Permian are 3.5 times higher than federal inventories indicate, which, in turn, parallels previous results from EDF’s PermianMAP work.