...+ Improved operating conditions and lower capital spending have led to an improved financial performance for Hexion Inc. + Despite "less than adequate" liquidity, the company's liquidity position has marginally improved. + We are revising our outlook on Hexion to stable from negative and affirming all ratings, including the '###+' corporate credit rating. + The stable outlook reflects our expectation that funds from operations (FFO) to debt will remain in the mid-single-digit range and debt to EBITDA will be under 10x, and that liquidity will not deteriorate. NEW YORK (Standard & Poor's) Sept. 14, 2015--Standard & Poor's Ratings Services affirmed its '###+' corporate credit rating on Ohio-based Hexion Inc. and revised the rating outlook to stable from negative. At the same time, we affirmed our '###+' first-lien issue rating on the company's senior secured notes and '###' rating on the remainder of the company's debt issues. The recovery rating on the first-lien notes remains '3', indicating...