NEW YORK--(BUSINESS WIRE)--Halper Sadeh LLC, an investor rights law firm, is investigating whether the merger of SM Energy Company (NYSE: SM) and Civitas Resources, Inc. is fair to SM Energy shareholders. Upon completion of the proposed transaction, SM Energy shareholders will own approximately 48% of the combined company. Halper Sadeh encourages SM Energy shareholders to click here to learn more about their legal rights and options or contact Daniel Sadeh or Zachary Halper at (212) 763-0060 or. ...