This is a geologic sample in one of the Bureau of Economic Geology's three Core Research Centers. API Number: 420030040500 Top Depth: 1900 Ft. Bottom Depth: 4400 Ft. lease_name: UNIV BLK 9 WLFC UNIT sample_type_name: CUTTINGS sample_category_name: Cuttings formation_name: Unknown formation_age_name: Unknown facility_name: Houston reservoir_name: UNIVERSITY BLOCK operator_name: XTO ENERGY INC. state_name: Texas county_name: Andrews