FTO Frontier Oil Corp.

NEW YORK, June 23, 2011 /PRNewswire/ -- S&P will make the following changes to the S&P 500, S&P MidCap 400 and S&P SmallCap 600 indices effective after the close of trading on Thursday, June 30:

• Marathon Petroleum Corp. (NYSE: MPCwi) will replace RadioShack Corp. (NYSE: RSH) in the S&P 500 index, RadioShack will replace Harte-Hanks Inc. (NYSE: HHS) in the S&P MidCap 400 index, and Harte-Hanks will replace Hutchinson Technology Inc. (NASD: HTCH) in the S&P SmallCap 600 index. S&P 500 constituent Marathon Oil Corp. (NYSE: MRO) is spinning off Marathon Petroleum to its shareholders in a transaction expected to be completed after the market close on June 30. The Marathon Oil stub will remain in the S&P 500 index following the spin-off. RadioShack's $1.4 billion market capitalization is more representative of the mid cap market space, and Harte-Hanks' $530 million market capitalization is more representative of the small cap market space. Hutchinson Technology currently ranks 600th in the S&P SmallCap 600 index and is no longer representative of the small cap market space.

• AMC Networks Inc. (NASD: AMCXV) will replace Boyd Gaming Corp. (NYSE: BYD) in the S&P MidCap 400 index, and Boyd Gaming will replace StarTek Inc. (NYSE: SRT) in the S&P SmallCap 600 index. S&P 500 constituent Cablevision Systems Corp. (NYSE: CVC) is spinning off AMC Networks to its shareholders in a transaction expected to be completed after the market close on June 30. The Cablevision Systems stub will remain in the S&P 500 index following the spin-off. StarTek's $62 million market capitalization is no longer representative of the small cap market space.

• S&P SmallCap 600 constituent Holly Corp. (NYSE: HOC) will replace Frontier Oil Corp. (NYSE: FTO) in the S&P MidCap 400 index, and Entropic Communications Inc. (NASD: ENTR) will replace Holly in the S&P SmallCap 600. Holly is acquiring Frontier Oil in a deal expected to be completed on or about June 30, pending final approvals. Holly will change its name to HollyFrontier Corp. following completion of the merger.

Standard & Poor's will monitor these transactions, and post any relevant updates on its website: www.standardandpoors.com.

Marathon Petroleum engages in petroleum refining, marketing and transportation operations.  Headquartered in Findlay, OH, the company will be added to the S&P 500 GICS (Global Industry Classification Standard) Oil & Gas Refining & Marketing Sub-Industry index.

RadioShack engages in the retail sale of consumer electronic goods and services. Headquartered in Fort Worth, TX, the company will be added to the S&P MidCap 400 GICS Computer & Electronics Retail Sub-Industry index.

Harte-Hanks operates as a direct and targeted marketing company. Headquartered in San Antonio, TX, the company will be added to the S&P SmallCap 600 GICS Advertising Sub-Industry index.

AMC Networks owns and operates various cable television networks. Headquartered in New York, NY, the company will be added to the S&P MidCap 400 GICS Cable & Satellite Sub-Industry index.

Boyd Gaming operates as a multi-jurisdictional gaming company. Headquartered in Las Vegas, NV, the company will be added to the S&P SmallCap 600 GICS Casinos & Gaming Sub-Industry index.

Holly Corporation operates as a petroleum refiner. Headquartered in Dallas, TX, the company will be added to the S&P MidCap 400 GICS Oil & Gas Refining & Marketing Sub-Industry index.

Entropic Communications is a fabless semiconductor company. Headquartered in San Diego, CA, the company will be added to the S&P SmallCap 600 GICS Semiconductors Sub-Industry index.

Following is a summary of the changes:

For more information about S&P Indices, please visit www.standardandpoors.com/indices.

About S&P Indices

S&P Indices, the world's leading index provider, maintains a wide variety of investable and benchmark indices to meet an array of investor needs. Over $1.25 trillion is directly indexed to Standard & Poor's family of indices, which includes the S&P 500, the world's most followed stock market index, the S&P/Case-Shiller Home Price Indices, the leading measure of U.S. home prices, the S&P Global BMI, an index with approximately 11,000 constituents, the S&P GSCI, the industry's most closely watched commodities index, and the S&P National AMT-Free Municipal Bond Index, the premier investable index for U.S. municipal bonds. For more information, please visit www.standardandpoors.com/indices.

For more information contact:

David M. Blitzer, Ph.D.

Managing Director & Chairman of the Index Committee

(212) 438-3907

SOURCE Standard & Poor's