The goal of the U.S. Department of Energy's GASIS (Gas Information System) project is to develop the first national public domain electronic database of reservoir property and ultimate recovery data for Lower-48 oil and gas reservoirs. GASIS is scheduled for publication on CDROM in 1997 and 1998. The final CD will include 19,000 to 20,000 oil and gas reservoir records with approximately 180 data elements per record. Included reservoirs will be those either meeting minimum cumulative gas production levels (5 or 10 Bcf through 1996) or those included in the GRI/DOE Gas Atlas projects. GASIS can be viewed as the national extension of the Gas Research Institute/ Department of Energy Gas Atlas project, which has produced six regional atlases and their corresponding reservoir property databases. Gas Atlas projects have included Texas, the Mid-Continent, the Central and Eastern Gulf Coast, the Rockies, the Appalachian Region, and the Gulf of Mexico. GASIS will combine selected Gas Atlas information (including the geological play classification) with information from Dwight's Energy data and other sources to produce a database with powerful capabilities in exploration, development, planning, economic analysis, and market assessment.