Dozens of people who live near oil and gas wells pleaded with the Trump administration Wednesday not to roll back rules for methane pollution, while industry representatives said the changes should go further.

The Environmental Protection Agency held a hearing in Denver on the administration's plans to loosen regulations imposed by the Obama administration in 2016. The rules require energy companies to step up the detection and elimination of methane leaks at well sites and other oil and gas facilities.

Methane is the primary component of natural gas. It is also a greenhouse gas and, when it leaks from oil equipment, becomes a major contributor to climate change.

Opponents argued Wednesday that changing the rules would threaten people's health, worsen climate change and squander natural gas by allowing leaks to go undetected. They also argued it would cost taxpayers, investors and mineral owners money from the lost sale of the gas.

Many accused the EPA of abetting polluters, looking out for the wealthy and failing its legal duty to protect public health and the environment.

"Polluters do not need your protection. I do," said 13-year-old Alexis Elliott, who said emissions from oil and gas wells near her school are causing her nosebleeds, rashes, bruising and other health problems.

"The EPA is the Environmental Protection Agency, not the Energy Protection Agency," Susanne Beug told agency officials.

Matthew Todd of the American Petroleum Institute said the industry is already reducing methane emissions even while natural gas production is increasing. He said the EPA should do more to allow technological innovation and streamline the rules.

When it unveiled the new, looser rules in September, the EPA said they would save energy companies up to $75 million a year. But the agency conceded that the rules "may also degrade air quality and adversely affect health and welfare."

It said the new rules would allow an additional 380,000 U.S. tons of methane and 100,000 U.S. tons of volatile organic compounds into the atmosphere from 2019 to 2025. Volatile organic compounds an ingredient of ozone or smog.

The EPA wants to reduce the frequency of inspections for methane leaks and give energy companies more time to repair leaks after they are detected. The changes would also allow an energy company's in-house engineers to certify some aspects of methane control instead of requiring an outside professional engineer to do so.

The Trump administration argues those programs are best left to the states. And indeed Colorado has one of the most aggressive detection and leak repair programs in the country for oil and gas. The policy covers both state and federal lands. But local government officials in southwestern Colorado argue they need protections against methane released from federal wells that can pollute the air in nearby New Mexico.

The EPA rules apply to oil and gas drilling on private land and some public land.

The administration is also relaxing a separate set of methane rules imposed by the Interior Department on oil and gas drilling on U.S. public lands and tribal lands.

Loosening the methane rules is part of a broad effort by the Trump administration to roll back environmental protections, particularly ones that apply to coal, oil and gas.

The hearing in Denver is the only one the EPA has scheduled. Some people urged the agency to hold more sessions in other cities.