The Environmental Protection Agency on Thursday announced it was withdrawing a request that operators of existing oil and gas wells provide the agency with extensive information about their equipment and its emissions of methane, undermining a last-ditch Obama administration climate change initiative.

The EPA announcement was a first step toward reversing an Obama administration effort โ€” which only got underway two days after Donald Trumpโ€™s election โ€” to gather information about methane, a short-lived but extremely powerful climate pollutant that is responsible for about a quarter of global warming to date.

The agency cited a letter sent by the attorneys general of several conservative and oil-producing states complaining that the information request โ€œfurthers the previous administrationโ€™s climate agenda and supports … the imposition of burdensome climate rules on existing sites, the cost and expense of which will be enormous.โ€

Scott Pruitt, the EPA administrator, said the agency took those complaints seriously. โ€œTodayโ€™s action will reduce burdens on businesses while we take a closer look at the need for additional information from this industry,โ€ he said in a statement.

Environmental advocates saw the move as something else entirely.

โ€œWith this action, Administrator Pruitt is effectively telling oil and gas companies to go ahead and withhold vital pollution data from the American public,โ€ Mark Brownstein, vice president climate and energy at the Environmental Defense Fund, said in an interview. โ€œThis was a good faith effort on the part of the agency to collect additional information on oil and gas industry operations and the pollution that comes from them. (Now), itโ€™s a complete lack of transparency.โ€