Chemical for use as a fluid loss additive employed to minimize fluid losses in subterranean formations; chemical agents for use in treatment, servicing, and working of oil wells and gas wells, namely, subterranean formation filling agents, proppants, and abrasive agents for subterranean formations; traceable proppants of different colors for use in oil well and gas well hydraulic fracturing operations; foundry media, namely, foundry sand; metal casting media, namely, metal casting sand; ceram...

Chemical for use as a fluid loss additive employed to minimize fluid losses in subterranean formations; chemical agents for use in treatment, servicing, and working of oil wells and gas wells, namely, subterranean formation filling agents, proppants and abrasive agents for subterranean formations; foundry media, namely, foundry sand; metal casting media, namely, metal casting sand; ceramic particles used in the foundry industry to make castings and abrasive grains sold as an unfinished produc...