By Tess Stynes 
 

Kinder Morgan Inc.'s (KMI) third-quarter earnings rose 43% driven by continued strong growth at its Kinder Morgan Energy Partners LP (KMP) affiliate while El Paso Pipeline Partners LP (EPB) posted a modest decline.

Kinder Morgan Energy Partners, which holds the majority of Kinder Morgan assets, reported its profit soared 70% on sharply higher earnings at its natural-gas pipelines segment while El Paso Pipeline Partners' earnings were down 6.6% amid higher costs.

Kinder Morgan Inc. acquired El Paso Corp. during late May of 2012 in a roughly $21 billion deal that created the largest natural-gas pipeline operator in North America. The latest period is the first to compare with a full quarter of El Paso Pipeline's year-earlier results.

Kinder Morgan Energy, which transports natural gas and coal, has benefited from strong production at U.S. alternative shale fields.

Kinder Morgan Inc. reported a profit of $286 million, or 27 cents a share, up from $200 million, or 17 cents a share, a year earlier. The year-earlier period included two cents a share in losses from discontinued operations, mostly owing to fair-value impacts. Revenue increased 27% to $3.65 billion.

Analysts polled by Thomson Reuters most recently projected earnings of 32 cents on revenue of $3.71 billion.

Kinder Morgan Energy reported a profit of $689 million, up from $405 million a year earlier. On a per-unit basis, which reflects general partner interests, earnings were 59 cents, compared with a year-earlier loss of six cents. Excluding asset-sale gains, prior-year fair value impacts and other items, adjusted earnings were down at 51 cents from 57 cents. Revenue increased 31% to $3.28 billion.

Analysts polled by Thomson Reuters most recently projected earnings of 62 cents on revenue of $3.06 billion.

The natural-gas pipeline business reported adjusted segment earnings were up 59%, mostly on dropdowns related to the El Paso acquisition, as well as a full quarter of contributions from its Copano Energy acquisition. Overall segment transport volumes fell 6% largely owing to lower natural gas demand for electric power generation.

El Paso Pipeline Partners reported a profit of $141million, down from $151 million. On a per-unit basis, which reflects the general partner interests, earnings fell to 40 cents from 55 cents. Excluding items, per-unit adjusted earnings were off at 58 cents from 71 cents. Revenue edged up 0.3% to $369 million.

Analysts polled by Thomson Reuters most recently projected earnings of 47 cents on revenue of $383 million.

Costs and expenses increased 6.1%.

Kinder Morgan Inc.'s shares closed Wednesday at $35.62, while Kinder Morgan Energy's units closed at $80.14 and El Paso Pipeline Partners' units closed at $41.21. The stocks weren't actively trading after hours.

Write to Tess Stynes at tess.stynes@wsj.com

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