Oil and gas well production logging tracers for use in oil and gas wells in the nature of a chemical for use in the field of oil and gas exploration and production; proppant containing non-radioactive production logging tracers for use in oil and gas wells hydraulic fracturing operations; particulates, namely, proppant for delivering tracers into oil wells and gas well hydraulic fracturing operations; non-radioactive tracers used in oil and gas production operations and oil and gas completion...