This is a geologic sample in one of the Bureau of Economic Geology's three Core Research Centers. API Number: 421030303400 Top Depth: 8140 Ft. Bottom Depth: 8270 Ft. lease_name: BLOCK 31 UNIT sample_type_name: CUTTINGS sample_category_name: Cuttings formation_name: Unknown formation_age_name: Unknown facility_name: Houston reservoir_name: BLOCK 31 operator_name: BP AMERICA PRODUCTION COMPANY state_name: Texas county_name: Crane