WILMINGTON, Del. - The ad hoc noteholders group in the Chapter 11 bankruptcy of Greenfield Energy Services Inc. (GFES) on Nov. 25 filed a brief in the U.S. Bankruptcy Court for the District of Delaware supporting a $30 million post-petition financing loan, also referred to as debtor-in-possession (DIP) financing (In Re: Greenfield Energy Services Inc., No. 13-12783, Chapter 11, D. Del. Bkcy.).