Emerge Energy Services LP(EMES), through its subsidiary, Superior Silica Sands LLC, operates an energy services company in the United States. It engages in mining, processing, and distributing silica sand, which is a primary input for the hydraulic fracturing of oil and natural gas wells. The company serves oilfield services companies, and exploration and production companies that are engaged in hydraulic fracturing.
An article on frac sand companie at
https://www.investors.com/research/industry-snapshot/crude-oil-price-energy-stocks-fracking-permian/?src=A00220&yptr=yahoo
A collection of fundamental analysis of this company is at
https://marketrealist.com/2017/12/hclp-emes-frac-sand-mlps-fell-40-2017