This is a log from an oil or gas well in the Bureau of Economic Geology's Geophysical Log Facility. API Number: 420133396000 Top Depth: 23 Ft. Bottom Depth: 3944 Ft. lease_name: KOEHLER UNIT #1 reservoir_name: W/C operator_name: MARK IV ENERGY log_source_name: RRC datum_name: Unknown state_name: Texas county_name: Atascosa