Southcross Energy Partners, L.P. Launches Open Season for New Y-Grade Pipeline to Flow Y-Grade from Woodsboro, Texas to Robstown, Texas

Southcross Energy Partners, L.P. (NYSE:SXE) (“Southcross”) announced today the launch of a binding open season to solicit commitments for its proposed Y-Grade pipeline (the “Pipeline”). Once complete, the Pipeline will permit Southcross to offer transportation services of Y-Grade from a point near Woodsboro, Texas to a point near Robstown, Texas. The Pipeline will have access to the Y-Grade pipeline of Southcross’ holding company that runs from Pettus, Texas to Robstown, Texas. Shippers electing to make long-term volume commitments to the Pipeline during the binding open season will be eligible to receive firm service for their committed volumes. The binding open season will commence today, May 15, 2015 and is scheduled to conclude at 7:00 p.m. Eastern Time on June 16, 2015.

For more information about the open season including a detailed description of the Pipeline, please contact Gerardo Rivera, Vice President of Natural Gas Liquids of Southcross’ general partner, by email at gerardo.rivera@southcrossenergy.com.

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 four gas processing plants, two fractionation plants and approximately 3,000 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.

Forward-Looking Statements

This press release includes certain statements concerning expectations for the future that are forward-looking within the meaning of the federal securities laws. Forward-looking statements include, without limitation, any statement that may project, indicate or imply future results, events, performance or achievements, and may contain the words “expect,” “intend,” “plan,” “anticipate,” “estimate,” “believe,” “will be,” “will continue,” “will likely result,” and similar expressions, or future conditional verbs such as “may,” “will,” “should,” “would” and “could.” Without limiting the generality of the foregoing, forward-looking statements contained in this press release specifically include the capabilities and access points with respect to the proposed Pipeline. Although Southcross believes the expectations and forecasts reflected in these and other forward-looking statements are reasonable, Southcross can give no assurance they will prove to be correct. Forward-looking statements contain known and unknown risks and uncertainties (many of which are difficult to predict and beyond management’s control) that may cause Southcross’ actual results in future periods to differ materially from anticipated or projected results. An extensive list of specific material risks and uncertainties affecting Southcross is contained in its Annual Report on Form 10-K filed with the Securities and Exchange Commission (the “SEC”) on March 6, 2015 and in other documents and reports filed from time to time with the SEC. Any forward-looking statements in this press release are made as of the date hereof and Southcross undertakes no obligation to update or revise any forward-looking statements to reflect new information or events.