This is a log from an oil or gas well in the Bureau of Economic Geology's Geophysical Log Facility. API Number: 4238932398 Top Depth: 8566 Ft. Bottom Depth: 12820 Ft. lease_name: BLOCK 58 STATE 32 reservoir_name: TOYAH NW SHALE operator_name: CHESAPEAKE OPERATING INC log_source_name: Unknown state_name: Texas county_name: Reeves