...+ We have completed our annual review on Boardwalk Pipeline Partners L.P. + We are affirming the '###-' corporate credit rating on Boardwalk. The outlook remains stable. + The stable outlook reflects our expectation that adjusted debt to EBITDA will be 4.2x-4.5x over the next year. We expect Boardwalk's capital spending program will continue to be elevated as the partnership continues to focus on growth projects backed by long-term contracts. NEW YORK (S&P Global Ratings) Aug. 28, 2017--S&P Global Ratings said today it affirmed its '###-' corporate credit rating on Houston-based Boardwalk Pipeline Partners L.P. The outlook is stable. Our assessment of Boardwalk's stand-alone credit profile (SACP) of '##+' reflects a satisfactory business risk profile and aggressive financial risk profile. The satisfactory business risk profile reflects the large percentage of fixed-fee revenues, primarily investment-grade customer base, and improving contract length as new projects with long-term contracts...