Hedge fund investor David Einhorn this week criticised major US tight oil players for spending too much and getting too little in return just a day before a few of the most prominent operators reported earnings strained by low oil prices. Einhorn, who founded Greenlight Capital, singled out EOG Resources, Concho Resources, Whiting Petroleum and Continental Resources, but he saved his strongest criticism for Pioneer Natural Resources, which he called the “motherfracker” of the bunch.
“Pioneer
