(March 8, 2017, 2:45 PM EST) -- WILMINGTON, Del. — Bankrupt fracking company Chaparral Energy Inc. on March 7 filed its amended Chapter 11 reorganization plan in Delaware bankruptcy court, which estimates a 100 percent recovery for holders of prepetition credit agreement claims and convenience class claims and provides some recovery for creditors with fracking royalty claims (In re: Chaparral Energy Inc., No. 16-11144, D. Del. Bkcy.)....