This is a log from an oil or gas well in the Bureau of Economic Geology's Geophysical Log Facility. API Number: 420033862200 Top Depth: 3950 Ft. Bottom Depth: 4948 Ft. lease_name: SHAFTER LAKE S. A. UNIT #431 reservoir_name: SHAFTER LAKE (SAN ANDRES) operator_name: BELCO ENERGY CORP log_source_name: RRC datum_name: Unknown state_name: Texas county_name: Andrews