(August 9, 2019, 10:38 AM EDT) -- HOUSTON — A company that provides hydraulic fracturing services on July 1 filed a declaration in federal bankruptcy court in Texas stating that it is filing for Chapter 11 bankruptcy due to the combination of “prolonged, depressed oil prices and the resulting reduction in demand” for its products (In re: Weatherford International Plc., No. 19-33694, S.D. Texas Bkcy.)....