This is a geologic sample in one of the Bureau of Economic Geology's three Core Research Centers. lease_name: MIDKIFF sample_type_name: GEOCHEMISTRY SAMPLES/FLUIDS/POWDER/SOILS sample_category_name: Miscellaneous facility_name: Houston reservoir_name: 90R2456-90R2467 operator_name: ARCO state_name: Texas county_name: Midland