Crestwood Midstream Partners LP shares are currently trading up about 1.3% on the day.

FORBES: Bullish Two Hundred Day Moving Average Cross - CMLP

This quest for i-grade ratings will drive more deals like Crestwood-Inergy, according to bankers.

FORBES: Energy MLPs acquire so they can borrow cheaply... and do more deals

Crestwood Midstream Partners LP shares are currently trading down about 0.2% on the day.

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Crestwood Midstream Partners LP shares are currently trading up about 0.4% on the day.

FORBES: Shares of CMLP Now Overbought

Crestwood Midstream Partners LP shares are currently trading down about 0.5% on the day.

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The report also cited the strong quarterly dividend history at Crestwood Midstream Partners LP, and favorable long-term multi-year growth rates in key fundamental data points.

FORBES: Why Crestwood Midstream Partners Is a Top 10 Energy Dividend Stock

But actually Crestwood, like a lot of MLPs, is trying to get bigger through mergers so it can improve its asset quality and thereby boost its credit rating.

FORBES: Energy MLPs acquire so they can borrow cheaply... and do more deals

Crestwood almost said as much when it announced the deal.

FORBES: Energy MLPs acquire so they can borrow cheaply... and do more deals

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Crestwood, the Houston-based company engaged in gathering and processing natural gas, announced an all-stock merger with Inergy, the Kansas City, Missouri-based company engaged in storage and transportation of natural gas earlier this month.

FORBES: Energy MLPs acquire so they can borrow cheaply... and do more deals