Wyoming State Geological Survey
Ronald C. Surdam
Director/State Geologist
Wyoming State Geological Survey
P.O. Box 1347
Laramie, WY 82073



Contact Information

Robert Waggener
Editor in Chief
307-766-2286, ext. 255

News Release January 25, 2010

WSGS releases Atlantic Rim CBNG map

The Wyoming State Geological Survey (WSGS) has released a new map showing coalbed natural gas (CBNG) activity in the Atlantic Rim area of south-central Wyoming.

“CBNG activity in the area southwest of Rawlins started in 2000 with a handful of exploratory wells,” said WSGS geologist Scott Quillinan. “As of November, there were 676 wells drilled. Of these, 277 were producing CBNG.”

The Bureau of Land Management (BLM) has approved 2,000 wells for the area – 1,800 for CBNG and 200 for conventional natural gas.

“The map will be useful to the oil and gas industry and the general public. It includes the status and locations of wells, making it very easy to see trends in CBNG activity throughout the area,” Quillinan said.

The map also includes:
  • BLM leasing units
  • Associated infrastructure such as compressor stations and pipelines
  • A side-by-side comparison of a typical lithological log and gamma ray log indicating producing intervals. The lithologic log includes a brief description of the lithology in 50-foot increments.
  • Geology of the area, including major faults
  • Highway and railroad transportation networks, rivers, streams, lakes and reservoirs Quillinan, WSGS geologic assistant Brett Worman and WSGS research assistant James Rodgers created the map.

WSGS Open-File Report 09-7 measures 46 x 39 inches. It is available as a rolled copy for $25 or on CD for $10, plus shipping fees and applicable taxes. The CD includes printable and viewable files along with files that can be loaded into GIS software.

To order, (1) visit the WSGS on the University of Wyoming campus in Laramie, (2) contact the sales office at 307-766-2286, ext. 224 or by e-mail at wsgs.sales@wyo.gov or (3) visit the WSGS Online Store.