(September 7, 2017, 2:23 PM EDT) -- WILMINGTON, Del. — Some of the subsidiaries of an energy company that has filed for Chapter 11 bankruptcy on Aug. 28 moved in federal bankruptcy court to extend the period of time within which they may file and solicit acceptances of their Chapter 11 reorganization plan, contending that the previous plan was approved by only some of the debtors (In re: Triangle USA Petroleum Corp., et al., No. 16-11566, Ch. 11, Del. Bkcy.)....