This is a log from an oil or gas well in the Bureau of Economic Geology's Geophysical Log Facility. API Number: 421733310100 Top Depth: 4457 Ft. Bottom Depth: 8460 Ft. lease_name: SPRABERRY DRIVER UNIT #A61A reservoir_name: SPRABERRY (TREND AREA) operator_name: PIONEER NAT RES UAS INC log_source_name: RRC datum_name: Unknown state_name: Texas county_name: Glasscock