September 24, 2002
New oil and gas maps of Wyoming now available

The Oil and Gas Section at the Wyoming State Geological Survey (WSGS) has completed updating four digital oil and gas maps covering the entire state of Wyoming. The individual Map Series (MS) maps, at a scale of 1:350,000, cover the Powder River Basin (MS-51), Greater Green River Basin and Overthrust Belt of southwestern Wyoming (MS-52), Central and northwestern Wyoming basins (mostly Bighorn and Wind River basins) (MS-53), and southeastern Wyoming basins (Denver, Laramie, eastern Hanna) (MS-54).

Each color map shows boundaries of producing and abandoned oil and gas fields, producing (or produced) formations, dominant age of reservoir rocks, field designations, pipeline sizes and locations, and refinery and gas plant locations and capacities. Base map information includes public land survey gridlines, state and federal highways, major towns, railroads, extent of Precambrian and volcanic rocks, and the limits of the basinal areas as well as the extent of oil shale-bearing rocks.

The updated map of the Powder River Basin shows for the first time the extent of coalbed methane development and its relation to conventional oil and gas fields. Also shown are updated gas pipeline routes that handle increased production from the coal beds. The updated map of southwestern Wyoming includes new field boundaries for the rapidly expanding Jonah and Pinedale anticline gas fields and revised boundaries for most gas producing areas on the Moxa and Wamsutter arches.

Each map is available as a plotted color map (rolled only) for $25.00 plus $6.00 for shipping and handling and 6% sales tax for Wyoming addresses. A CD-ROM containing shape files for GIS coverages (ESRI ArcInfo), free map viewing/manipulation software for digital GIS files (ESRI ArcReader), map images (LizardTech MrSid), complete metadata files, and other materials for the casual or professional user is available for $20.00 plus $5.00 for shipping and handling and 6% sales tax for Wyoming addresses.

Press Release
from the Office of the Wyoming State Geologist
Ron Surdam, State Geologist