OREANDA-NEWS. National Rating Agency has affirmed its ‘AA-’ credit rating on TM-energo finance LLC. The outlook for the rating is Stable. TM-energo finance was first assigned NRA's 'AA-' credit rating on June 9, 2014. The latest rating action on the company (the 'AA-' rating affirmation with a stable outlook) was on June 17, 2015.