This is a log from an oil or gas well in the Bureau of Economic Geology's Geophysical Log Facility. API Number: 423833429400 Top Depth: 20 Ft. Bottom Depth: 7492 Ft. lease_name: UNIV 4-10 #4 reservoir_name: SPRABERRY(TREND AREA) operator_name: HALLWOOD PETRO INC log_source_name: RRC datum_name: Unknown state_name: Texas county_name: Reagan