Falling oil prices weigh down oilfield services firms By: MarketMinute.com Stock News March 27, 2017 at 19:00 PM EDT Retreating crude oil prices weighed down shares of oilfield services providers Keane Group Inc. (NYSE: FRAC) $1.03 to close at $14.18 and ProPetro Holding Corp. (NYSE: PUMP) $1.03 to close at $12.47. Related Stocks: Keane Group Inc Propetro Holding Corp