This is a geologic sample in one of the Bureau of Economic Geology's three Core Research Centers. Top Depth: 2500 Ft. Bottom Depth: 3600 Ft. lease_name: GILLIAM sample_type_name: CUTTINGS sample_category_name: Cuttings formation_name: Unknown formation_age_name: Unknown facility_name: Houston reservoir_name: Unknown operator_name: WILCOX state_name: Texas county_name: Zavala