HOUSTON, Nov. 29, 2012 /PRNewswire/ -- Southwestern Energy Company, (the "Company"), (NYSE: SWN), today announced the commencement of an exchange offer for up to $1,000,000,000 aggregate principal amount of its 4.10% Senior Notes due 2022 (the "Original Notes"), which are not registered under the Securities Act of 1933, as amended (the "Act"), for an equal principal amount of its 4.10% Senior Notes due 2022, which have been registered under the Act (the "New Notes"). The exchange offer will commence on November 29, 2012 and expire at 5:00 p.m.New York City time, on December 28, 2012 (the "Expiration Date"). The New Notes are substantially identical to the Original Notes, except that the New Notes have been registered under the Act, and will not bear any legend restricting their transfer. The Company will accept for exchange any Original Notes validly tendered and not withdrawn prior to the Expiration Date, unless the exchange offer is extended or terminated. The terms of the exchange offer and other information relating to the Company are set forth in a prospectus dated November 29, 2012. A written prospectus providing the terms of the exchange offer may be obtained from Wells Fargo Bank, National Association, which is serving as the exchange agent for the exchange offer. Wells Fargo Bank, National Association can be contacted at: Wells Fargo Bank, National AssociationMAC N9303-121 Sixth & Marquette Avenue Minneapolis, Minnesota 55479 Attention: Corporate Trust OperationsFacsimile: (612) 667-6282Telephone: (800) 344-5128 This press release does not constitute an offer to purchase any securities or the solicitation of an offer to sell any securities. The exchange offer is being made only pursuant to the prospectus dated November 29, 2012 and the related letter of transmittal and only to such persons and in such jurisdictions as is permitted under applicable law. Southwestern Energy Company is an independent company whose wholly-owned subsidiaries are engaged in oil and gas exploration and production, natural gas gathering and marketing. Additional information on the company can be found on the Internet at http://www.swn.com. All statements, other than historical facts and financial information, may be deemed to be forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. All statements that address activities, outcomes and other matters that should or may occur in the future, including, without limitation, statements regarding the financial position, business strategy, production and reserve growth and other plans and objectives for the company's future operations, are forward-looking statements.