June 3, 2009 (FinancialWire) — Mariner Energy, Inc. (NYSE: ME) said it plans to offer 10 million shares of its common stock and $250 million of its senior notes due 2016 through concurrent underwritten public offerings.

Credit Suisse (NYSE: CS), J.P. Morgan (NYSE: JPM) and Merrill Lynch & Co. (NYSE: MER) are acting as joint book-running managers for the common stock offering, while Credit Suisse, Bank of America, J.P. Morgan, Wachovia Securities and Citi are acting as joint book-running managers for the senior notes offering.

Mariner plans to grant the underwriters a 30-day option to purchase up to an additional 1.5 million shares of its common stock to cover overallotments. The company plans to use the net proceeds from the offerings to repay debt under Mariner’s secured bank credit facility and for general corporate purposes.

Houston-based Mariner Energy is an independent oil and gas exploration, development, and production company with principal operations in the Permian Basin and the Gulf of Mexico.

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