This is a log from an oil or gas well in the Bureau of Economic Geology's Geophysical Log Facility. API Number: 424953230600 Top Depth: 2600 Ft. Bottom Depth: 3658 Ft. lease_name: UNDERWOOD #3 reservoir_name: KEYSTONE (COLBY) operator_name: DAVID H ARRINGTON O&G INC log_source_name: RRC datum_name: Unknown state_name: Texas county_name: Winkler