Southcross Energy Partners, L.P. Announces Closing of Public Offering of Common Units and Full Exercise of the Underwriters’ Option to Purchase Additional Common Units

Southcross Energy Partners, L.P. (NYSE:SXE) (“Southcross” or the “Partnership”) announced today the closing of its underwritten public offering of 9,200,000 common units at $16.50 per unit. That amount includes 1,200,000 common units purchased pursuant to the full exercise of the underwriters’ option to purchase additional common units. Southcross intends to use the approximately $148.5 million of net proceeds from the offering, including the proportionate capital contribution from the Partnership’s general partner and after deducting underwriting discounts and offering expenses, to fund the recently announced construction of its new Webb Pipeline and for general partnership purposes, including future acquisitions. Pending such use, Southcross will temporarily repay borrowings under its revolving credit facility.

Citigroup, Wells Fargo Securities, Barclays, J.P. Morgan, Raymond James and RBC Capital Markets acted as joint book-running managers for the offering. Baird and Stifel acted as co-managers for the offering.

The offering was made only by means of a prospectus supplement and accompanying prospectus. Copies of the prospectus supplement and accompanying base prospectus relating to the offering may be obtained free of charge on the SEC’s website at www.sec.gov or from the underwriters of the offering as follows:

This news release shall not constitute an offer to sell or the solicitation of an offer to buy the securities described above, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

Forward-Looking Statements

This press release includes certain statements concerning expectations for the future that are forward-looking and made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. All statements contained in this press release, other than statements of historical fact, are “forward-looking statement” for purposes of these provisions. An extensive list of the specific risks and uncertainties affecting the Partnership is contained in its 2012 Annual Report on Form 10-K filed with the SEC on April 15, 2013 and other documents filed from time to time with the SEC. Any forward-looking statements in this press release are made as of the date of this press release and Southcross undertakes no obligation to update or revise any forward-looking statements to reflect new information or events.

About Southcross Energy Partners, L.P.

Southcross Energy Partners, L.P. is a master limited partnership that provides natural gas gathering, processing, treating, compression and transportation services and NGL fractionation and transportation services. It also sources, purchases, transports and sells natural gas and NGLs. Its assets are located in South Texas, Mississippi and Alabama and include three gas processing plants, two fractionation plants and approximately 2,740 miles of pipeline. The South Texas assets are located in or near the Eagle Ford shale region. Southcross is headquartered in Dallas, Texas. Visit www.southcrossenergy.com for more information.