Alerian Announces Holly Energy Partners Added to the Alerian MLP Infrastructure Index

Aug 31, 2010, 14:35 ET from Alerian

DALLAS, Aug. 31 /PRNewswire/ -- Alerian announced today that following the close of business on Tuesday, August 31, Holly Energy Partners LP (NYSE: HEP) will be added to the Alerian MLP Infrastructure Index (NYSE: AMZI), replacing Williams Pipeline Partners LP (NYSE: WMZ) in a special rebalancing.

Special rebalancings are triggered by corporate actions that result in the termination of trading of an index constituent on a major US exchange. Such corporate actions include, but are not limited to, mergers, delistings, and bankruptcies. Subject to unitholder approval, Williams will cease to trade on the New York Stock Exchange at the close of business on August 31 due to its merger with Williams Partners LP (NYSE: WPZ).

Holly provides petroleum product and crude oil transportation, terminalling, storage, and throughput services to the petroleum industry. Holly owns and operates petroleum product and crude gathering pipelines, tankage, and terminals in Texas, New Mexico, Arizona, Washington, Idaho, Oklahoma, and Utah.

HEP Shares Outstanding: 22,078,509

HEP Investable Weight Factor: 0.60655647897238

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 is calculated using a capped, float-adjusted, capitalization-weighted methodology that results in greater diversification. The index is disseminated real-time on a price-return basis (NYSE: AMZI), and the corresponding total-return index is disseminated daily through ticker AMZIX. Relevant data points such as dividend yield are also published daily. For index values, constituents, and announcements regarding constituent changes, 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


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