U.S. hydraulic fracturing firm ProPetro Holding Corp. plans to run between seven to eight fleets this quarter, up from an average of four fleets in the second quarter, executives told investors on an earnings call on Aug. 5.

The company had averaged almost 19 fleets in the first quarter of this year, but saw a significant drop in activity after oil prices crashed amid the COVID-19 pandemic. The company on Aug. 5 said market conditions began to improve in June.