This is a log from an oil or gas well in the Bureau of Economic Geology's Geophysical Log Facility. API Number: 422150194700 Top Depth: 6700 Ft. Bottom Depth: 7611 Ft. lease_name: ADERHOLD UNIT #4 reservoir_name: SAN CARLOS operator_name: UNION PROD CO log_source_name: BEG datum_name: Unknown state_name: Texas county_name: Hidalgo