Alerian Announces Chesapeake Midstream Partners Added to the Alerian MLP Infrastructure Index

Mar 15, 2011, 08:35 ET from Alerian

DALLAS, March 15, 2011 /PRNewswire/ -- Alerian announced today that following the close of business on Friday, March 18, Chesapeake Midstream Partners LP (NYSE: CHKM) will be added to the Alerian MLP Infrastructure Index (NYSE: AMZI).

Chesapeake owns, operates, develops, and acquires natural gas gathering systems and other midstream energy assets. The partnership's operations are focused on the Barnett Shale, Haynesville Shale, and Mid-Continent regions of the United States.

CHKM Shares Outstanding: 138,159,387

CHKM Investable Weight Factor: 0.173341639734666

Calumet Specialty Products Partners LP (Nasdaq: CLMT) will be removed from the index following the close of business on March 18. In addition, the 25 constituents of the index will be rebalanced on a capped, float-adjusted, capitalization-weighted basis in accordance with the existing index methodology. Constituent additions to and deletions from the index do not reflect an opinion by Alerian on the investment merits of the respective securities.

About the Alerian MLP Infrastructure Index

The Alerian MLP Infrastructure Index, comprised of 25 energy infrastructure Master Limited Partnerships, is a liquid, midstream-focused subset of the Alerian MLP Index (NYSE: AMZ). The index, whose constituents earn the majority of their cash flow from the transportation, storage, and processing of energy commodities, provides investors with an unbiased benchmark for the infrastructure component of this emerging asset class. The index, which is calculated using a capped, float-adjusted, capitalization-weighted methodology, is disseminated real-time on a price-return basis (NYSE: AMZI) and on a total-return basis (NYSE: AMZIX). For index values, yields, constituents, and announcements regarding rebalancings, please visit

About Alerian

Alerian is an independent company that provides objective market information. The company is a leader in MLP-market intelligence, providing benchmarks, data sets, and analytics that are used extensively by a range of stakeholders such as investment banks, stock exchanges, investment professionals, consultants, and Master Limited Partnerships. The Alerian Index Series is used for the purposes of asset allocation, investment analysis, portfolio hedging, and the creation of index tracking funds. Alerian is widely known for maintaining the leading benchmark of MLP equities: the Alerian MLP Index (NYSE: AMZ). For more information, please visit

SOURCE Alerian