Ms. Reimer advocates for clients in matters involving federal and state environmental regulation, including environmental impact assessment, endangered species, and permitting aspects of project development on public, private, and tribal lands for a variety of oil and gas, coal, renewable energy, mining, infrastructure, and water clients.  She has defended project authorizations for oil and gas, mining, water, and other clients before the Interior Board of Land Appeals and the federal courts, and successfully argued cases before the Wyoming Supreme Court.

In tribal matters, Ms. Reimer has experience assisting clients in negotiation of mineral leases and rights-of-way in Indian Country. She also has experience litigating royalty disputes and advising private and Indian tribes on environmental compliance on tribal land.