Gasco's Daniel Anticline and Muddy Creek Trend Projects are two core areas on its Greater Green River Basin acreage. According to the USGS, the Greater Green River Basin has produced more than 7.3 trillion cubic feet of natural gas and 849 million barrels of oil, making it one of the country's giant oil and gas regions. Gasco currently controls*, either through ownership or contracts, approximately* 82,200 gross acres (39,000 net)**.

The targets for this acreage include the Lance, Mesaverde, Ericson, and Rock Springs formations. The Daniel Anticline prospect, at depths up to 13,000', is a 3-D seismically defined prospect targeting over-pressured tight gas sands in the above described formations. The Muddy Creek prospect is targeting the same formations for normal pressure gas production at depths of less than 10,000'. Additional opportunities exist targeting the over-pressured Hilliard Shale prospective across Gasco's leasehold.

*at 12/31/05
**During the fourth quarter of 2005 and through the end of the second quarter of 2006, leases covering 27,064 gross and 14,279 net acres will expire in Wyoming. Management decided not to drill on the subject leases due to lack of rig availability, lack of a partner to share risk dollars, and the non-strategic nature of these leases and has impaired the expiring acreage by reclassifying the costs associated with this acreage into the full cost pool. If we excluded the expiring acreage, our undeveloped leasehold acreage in Wyoming would be 82,152 gross acres and 38,634 net acres.

Greater Green River Basin Project Detail