This is a geologic sample in one of the Bureau of Economic Geology's three Core Research Centers. API Number: 421950016700 Top Depth: 5400 Ft. Bottom Depth: 8100 Ft. lease_name: KIRK UNIT sample_type_name: CUTTINGS sample_category_name: Cuttings formation_name: Unknown formation_age_name: Unknown facility_name: Houston reservoir_name: HANSFORD operator_name: UNKNOWN state_name: Texas county_name: Hansford