This is a log from an oil or gas well in the Bureau of Economic Geology's Geophysical Log Facility. API Number: 423498102600 Top Depth: 100 Ft. Bottom Depth: 600 Ft. lease_name: MCKINNEY #20 reservoir_name: CORSICANA SHALLOW operator_name: COFFIELD GUTHRIE log_source_name: RRC datum_name: Unknown state_name: Texas county_name: Navarro