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Environmentalists sue feds for information on Wyoming's largest oil and gas project
Oil and Gas

Environmentalists sue feds for information on Wyoming's largest oil and gas project

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Preble's jumping mouse

The Preble’s meadow jumping mouse is pictured in this courtesy photo. An environmental group is suing the Bureau of Land Management for information about endangered species, including the mouse, in the area of Wyoming's largest oil and gas project.

Environmental group Western Watersheds Project is suing the federal government for information about Wyoming’s 5,000-well oil and gas project in Converse County.

The group argued in its suit, filed Wednesday in Idaho, that it had requested public information from the Bureau of Land Management regarding endangered species like the black-footed ferret that could be affected by the proposed oil and gas activity northeast of Casper. The group alleges that its original request was made in October 2017, when the agency acknowledged the receipt of the Freedom of Information Act request. According to Western Watersheds, the BLM then missed the 20-day deadline for a response on public records requests. The agency’s Washington, D.C., headquarters then ignored multiple emails from the group, according to Western Watershed’s lawsuit.

A spokeswoman for the Bureau of Land Management in Wyoming said the agency could not comment on ongoing litigation. The agency did include information about the species noted in the lawsuit in an environmental analysis, pointing out that the black-footed ferret has not been documented in the project area since the 1980s. Other species like Preble’s meadow jumping mouse have been documented in the area but lack long-term studies in Wyoming.

The environmental group said in a statement Wednesday that it hoped the lawsuit would force the BLM to comply with its request, which targets consultation records on the species held by the BLM, according to the lawsuit.

“We hope our lawsuit will get BLM to finally give Western Watersheds Project records to which it is legally entitled,” said Talasi Brooks, a lawyer with Advocates for the West, who is representing Western Watersheds Project.


The Converse County project is one of the largest that the Bureau of Land Management has handled in Wyoming. It was proposed in 2014 by five large companies that operate in the state: Anadarko Petroleum, SM Energy, Devon Energy, Chesapeake Energy and EOG Resources. Because the project would drain federal minerals and overlap some federally managed land, it was studied by BLM for its likely effect on a host of issues, from Native American sites and vehicle traffic to endangered species that live within the 1.5 million acre project area.

A draft of the Environmental Impact Statement was published in January that recommended following the energy firms’ original proposal of up to 5,000 wells over a period of 10 years. BLM environmental analyses include a number of paths forward for energy projects, with one being the preferred approach.

The Converse County project is progressing at a time when Wyoming’s southern Powder River Basin is hot with anticipation. The state’s oil and gas regulators, the Wyoming Oil and Gas Conservation Commission, has been flooded with applications for permits to drill, hitting a record high of 18,000 applications this year. Many of them will not result in wells drilled, but companies are eager to have first approval for drilling rights, which will give them greater authority over future drilling in the area.


Western Watersheds Project has a history of suing the federal government over issues like endangered or vulnerable species. The group recently won a round in a lawsuit in the U.S. District Court, District of Idaho, that forced the Bureau of Land Management to revert to Obama-era public comment periods for oil and gas lease sales in sage grouse habitat. A recent edict from the Trump administration speeding up leasing timelines was found questionable by the Idaho judge.

The group is also responsible for the 2007 lawsuit against the U.S. government for not listing the sage grouse as an endangered species. Western Watersheds won that battle, which led to much of the work done in Wyoming and across the West to develop sage grouse management plans that would preclude an endangered species listing. An ESA designation for the bird would have a tremendous negative impact on oil and gas development in Wyoming given the overlap of sage grouse habitat and potential drilling locations across Wyoming.

Follow energy reporter Heather Richards on Twitter @hroxaner


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Energy Reporter

Heather Richards writes about energy and the environment. A native of the Blue Ridge Mountains in Virginia, she moved to Wyoming in 2015 to cover natural resources and government in Buffalo. Heather joined the Star Tribune later that year.

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