This is a log from an oil or gas well in the Bureau of Economic Geology's Geophysical Log Facility. API Number: 423293527600 Top Depth: 4900 Ft. Bottom Depth: 9240 Ft. lease_name: WILLIS "AA" operator_name: PIONEER NATURAL RES. USA, INC. log_source_name: RRC datum_name: Unknown state_name: Texas county_name: Midland