This is a log from an oil or gas well in the Bureau of Economic Geology's Geophysical Log Facility. API Number: 421733280900 Top Depth: 3490 Ft. Bottom Depth: 8521 Ft. lease_name: SPRABERRY DRIVER UNIT #131A reservoir_name: SPRABERRY(TRND AREA) operator_name: PIONEER NATURAL RESOURCES USA INC log_source_name: RRC datum_name: Unknown state_name: Texas county_name: Glasscock