The Tenth Circuit affirmed dismissal of a challenge brought by an environmental group concerning conservation of the lesser prairie chicken. The group had argued that FWS unreasonably delayed submitting to Congress a 2003 policy concerning conservation efforts when making listing decisions under the...

A district court vacated BLM's 2018 instruction memorandum (IM) and oil and gas lease sales in Montana and Wyoming issued in reliance on the IM for failing to maintain federal protections for the greater sage-grouse. Environmental groups challenged the IM and lease sales, arguing that they violated ...