By Nathalie Tadena 
 

Standard & Poor's Ratings Services lifted its outlook on Kinder Morgan Inc. (KMI) to positive from stable, citing the midstream energy company's successful execution of its deleveraging plan as well as its greater size and improved cash flow following its merger with El Paso Corp.

S&P affirmed Kinder Morgan's rating at double-B, two levels away from investment grade.

Kinder Morgan acquired El Paso last year in a roughly $21 billion deal that created the largest natural-gas pipeline operator in North America.

S&P on Friday said it has also revised Kinder Morgan's business risk profile to "strong" from "satisfactory" due to the company's improved scale and high percentage of fee-based cash flows. The ratings firm noted Kinder Morgan's ability to complete its deleveraging plan and associated asset dropdowns to Kinder Morgan Energy Partners LP (KMP) and El Paso Pipeline Partners LP (EPB) could lead to a higher rating.

S&P on Friday also affirmed El Paso Pipeline's rating triple-B-minus, the first level into investment grade, and revised the company's outlook to positive. The outlook revision reflects El Paso Pipeline's increasing scale and diversity.

S&P affirmed Kinder Morgan Energy's rating at triple-B, two steps into investment grade. The outlook is stable. Earlier Friday, Kinder Morgan Energy said it has cancelled plans for the $2 billion Freedom pipeline, a conduit that would have brought a direct stream of West Texas crude to refiners on the U.S. West Coast.

Last month, Kinder Morgan reported its first-quarter earnings surged as the year-earlier period included losses from at some former operations and as revenue climbed, driven by growth at its Kinder Morgan Energy Partners affiliates as well as a solid quarter at its El Paso Pipeline Partners.

Kinder Morgan shares closed at $37.98 and were unchanged after hours. El Paso Pipeline shares closed at $41.09, while Kinder Morgan Energy shares closed at $83.40.

-Write to Nathalie Tadena at nathalie.tadena@dowjones.com

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