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Casper Field Office
Release Date: 11/21/12
Contacts: Lesley A. Elser    

BLM Casper Releases Finding of No Significant Impact and Decision Record for
Spearhead Ranch EA, Highland Loop Road EA, and East Converse EA

The Bureau of Land Management (BLM) Casper Field Office (CFO) announces the availability of Finding of No Significant Impact (FONSI) and Decision Record (DR) for three Environmental Assessments (EAs) for exploratory oil and gas development within Converse and a small portion of Niobrara Counties, Wyo.: Spearhead Ranch EA, Highland Loop Road EA, and East Converse EA.

The CFO prepared these EAs in response to individual Notices of Staking (NOS) and Applications for Permit to Drill (APDs) from multiple operators in three areas within Converse County and a small portion in Niobrara County. The operators have submitted notices and applications to explore existing oil reserves and determine the potential for commercial oil/gas production from the geologic formations within the project areas.

The project proposals could involve drilling a combination of both horizontal and vertical wells within the project areas to explore and develop the federal mineral estate. As identified in the EAs the typical well pads would be designed for one to four wells to be drilled from each pad. The range of wells proposed and analyzed is identified by EA below:

The Spearhead Ranch EA has a range of 56 to 224 wells from the proposed 56 well pads.

The Highland Loop Road EA has a range of 37 to 148 wells from the proposed 37 well pads.

The East Converse EA has a range of 18 to 72 wells from the proposed 18 well pads.

Electronic copies of the FONSI, DR, and EA are available by visiting the BLM website at:

For more information, please contact BLM Assistant Field Manager, Patrick Moore at (307) 261-7600.

The BLM manages more than 245 million acres of public land, the most of any Federal agency. This land, known as the National System of Public Lands, is primarily located in 12 Western states, including Alaska. The BLM also administers 700 million acres of sub-surface mineral estate throughout the nation. The BLM's mission is to sustain the health, diversity, and productivity of America’s public lands for the use and enjoyment of present and future generations. In Fiscal Year 2015, the BLM generated $4.1 billion in receipts from activities occurring on public lands.

Casper Field Office   2987 Prospector Drive      Casper, WY 82604  

Last updated: 11-21-2012