This is a geologic sample in one of the Bureau of Economic Geology's three Core Research Centers. API Number: 420570086400 Top Depth: 6917 Ft. Bottom Depth: 9570 Ft. lease_name: STATE TRACT 55 sample_type_name: PALEONTOLOGY/PALYNOLOGY SAMPLES sample_category_name: Miscellaneous formation_name: Unknown formation_age_name: Unknown facility_name: Houston reservoir_name: KELLERS BAY operator_name: EXXON CORP.