CHICAGO–(BUSINESS WIRE)–Fitch Ratings has assigned a ‘B-/RR4’ rating to Chesapeake Energy Inc.’s (NYSE: CHK) announced private placement of $1 billion senior unsecured notes due 2025. The company expects to use net proceeds from the offering to finance tender offers for certain of its senior notes. The new notes will be pari-passu with existing senior unsecured debt. KEY RATING DRIVERS Chesapeake’s ratings reflect its considerable size with the potential for more liquids-focused production, s