This is a log from an oil or gas well in the Bureau of Economic Geology's Geophysical Log Facility. API Number: 422113190300 Top Depth: 4500 Ft. Bottom Depth: 12300 Ft. lease_name: MATHERS #1023 reservoir_name: GILL RANCH operator_name: MARSH OPRG CO log_source_name: RRC datum_name: Unknown state_name: Texas county_name: Hemphill