NEW YORK--(BUSINESS WIRE)--Fitch's high yield energy sector default rate continued to climb with the recent Chapter 11 filings of two more exploration and production (E&P) companies, driving the trailing 12-month (TTM) rate more than one-half point higher to 2.6% and the E&P subsector rate to 5.1% from 3.7%, according to Fitch Ratings. The default rate includes issuers of high yield bonds in the U.S. irrespective of the issuer domicile. Significant decreases in oil and gas market prices