The department's Missouri Geological Survey is responsible for the collection and archival of stratigraphic and geophysical downhole information relating to oil and gas wells in Missouri. The stratigraphic and geophysical log database represents a complete historical accumulation of stratigraphic and geophysical downhole information collected by the department. It contains approximately 4,100 individual logs. Although the majority of information was acquired from boreholes associated with the oil and gas industry, boreholes related to other sources are included. The oldest information in the database dates back to 1939.
Access stratigraphic and geophysical logs using GeoSTRAT.