This is a geologic sample in one of the Bureau of Economic Geology's three Core Research Centers. API Number: 421830005700 Top Depth: 6500 Ft. Bottom Depth: 8000 Ft. lease_name: DAVIS GAS UNIT /E/ sample_type_name: CUTTINGS sample_category_name: Cuttings formation_name: Unknown formation_age_name: Unknown facility_name: Houston reservoir_name: WILLOW SPRINGS operator_name: AMOCO PRODUCTION COMPANY state_name: Texas county_name: Gregg