OKLAHOMA CITY (AP) — The U.S. Department of Justice has opened an investigation into possible antitrust violations by Chesapeake Energy Corp. 2 U.S. natural gas producer said in May that it had received subpoenas and demands for documents from the DoJ and some state government agencies in connection with investigations into possible violations of antitrust laws relating to the purchase and lease of oil and natural gas rights. Chesapeake had also received subpoenas from the DoJ, the U.S. (bit.ly/2dnnspG)

The company said in a regulatory filing on Thursday it had engaged in discussions with the DoJ, the U.S. Postal Service and state agency representatives and continue to respond to such subpoenas and demands.
The Obama administration through the United States Department of Justice sends a subpoena to natural gas giant Chesapeake Energy regarding the accounting methods for its oil and gas properties.