The Newcastle Field Office is responsible for the public lands, and interest in lands, administered by the BLM in Crook, Weston and Niobrara counties in northeast Wyoming, as well as the public lands that remain in Nebraska.
Surface acreage administered by this office includes approximately 292,000 acres in Wyoming and 6,600 acres in Nebraska. "Interest in lands" refers to the federal mineral estate that has been severed from the surface estate (split estate). The Office oversees approximately 1.6 million acres of split estate in the three Wyoming counties and 240,000 acres within the state of Nebraska.
Major programs managed by the Newcastle Field Office include oil and gas exploration & development, livestock grazing, and lands and realty.