This is a geologic sample in one of the Bureau of Economic Geology's three Core Research Centers. Top Depth: 7140 Ft. Bottom Depth: 7980 Ft. lease_name: CORTEZ sample_type_name: CUTTINGS sample_category_name: Cuttings formation_name: Unknown formation_age_name: Unknown facility_name: Houston reservoir_name: 92R4530-4578 operator_name: SKIPPY OIL state_name: Nevada county_name: Eureka