Extraction Oil Investigation: Halper Sadeh LLP Announces Investigation Into Whether the Sale of Extraction Oil & Gas, Inc. Is Fair to Shareholders; Investors Are Encouraged to Contact the Firm – XOG

b'Halper Sadeh LLP, a global investor rights law firm, is investigating whether the sale of Extraction Oil & Gas, Inc. (NASDAQ: XOG) to Bonanza Creek Energy, Inc. is fair to Extraction Oil shareholders.