The Environmental Protection Agency is proposing to weaken Obama-era rules about leaks of methane, a potent greenhouse gas that contributes to global warming.
The leak, which began in October of 2015, led to the release of an estimated 109,000 metric tons of methane into the atmosphere.
The coalition of attorneys general argue the Trump administration has failed to fulfill its legal obligation to control methane emissions.
A study of a blowout site in the Netherlands offers safety lessons for natural gas fields around the world.
The Sierra Club, the Natural Resources Defense Council, the Environmental Defense Fund, and other environmental organizations filed the suit to prevent the EPA from suspending Obama-era regulations to reduce methane pollution from the oil and gas industry.
The regulation is expected to save taxpayers $330 million a year.