This is a log from an oil or gas well in the Bureau of Economic Geology's Geophysical Log Facility. API Number: 424273214700 Top Depth: 430 Ft. Bottom Depth: 3984 Ft. lease_name: EL NEGRO RANCH #4 reservoir_name: CHARCO DEL MONTE operator_name: MADDUX, ELIZABETH H. log_source_name: RRC datum_name: Unknown state_name: Texas county_name: Starr