THE WOODLANDS, Texas – June 15, 2015 – NextDecade, LLC (NextDecade) announced that Valinor Management, L.P. (Valinor) and Halcyon Energy Investors, L.P. (Halcyon) have joined certain funds managed by York Capital Management Global Advisors, LLC and its affiliates (York) in providing NextDecade with an additional US$85 million in order to take the Rio Grande LNG (RGLNG) and Rio Bravo Pipeline project to Final Investment Decision (FID) as well as to fund the continued development of Pelican Island LNG (PILNG) in Galveston, Texas. The terms of the transaction include options for NextDecade’s three strategic investors to invest the requisite FID equity sufficient to commence construction of the RGLNG project. Together, York, Valinor and Halcyon manage assets in excess of US$40 billion. Jefferies LLC served as sole placement agent for NextDecade.

Kathleen Eisbrenner, Founder and CEO of NextDecade said, “The financial and strategic support of our new partners, in combination with York’s continued commitment, is validation of NextDecade’s robust project portfolio, world class team and strong collaboration with industry leading partners. This additional capital positions NextDecade to become a leader in the second wave of LNG exports from the United States and allows us to continue the process of de-risking our project portfolio.”

Since entering the U.S. Federal Energy Regulatory Commission (FERC) Pre-Filing Process in March of this year, RGLNG has made significant strides in engineering and design, regulatory commitments, LNG marketing, and local community outreach. As previously announced, NextDecade executed a Front-End Engineering and Design (FEED) agreement with Chicago Bridge & Iron Company (CB&I), as well as the terms under which CB&I could assume the role as the EPC contractor on the RGLNG project. Further, NextDecade submitted Draft Resource Reports 1 & 10 to the FERC during May of 2015, and successfully engaged the local communities through Open Houses in Kingsville, Raymondville and Brownsville regarding plans for the RGLNG and Rio Bravo Pipeline projects.

NextDecade plans to complete FEED by the end of the year and enter the full NEPA filing process with the FERC in Q1 2016. NextDecade expects RGLNG to achieve first LNG by Q3 2020.

NextDecade is currently in active negotiations with major international buyers for long-term contractual LNG off take agreements. Ms. Eisbrenner added, “NextDecade’s business and marketing models are attracting interest in our projects. Our Company is built on projects that are grounded in safe and reliable technology and design with low-risk construction and proven performance that is appealing to our stakeholders.”

Additionally, NextDecade continues the development of its other projects, including Pelican Island LNG in Galveston, Texas. PILNG is continuing basis-of-design work and preliminary engineering while it prepares for future FERC Pre-Filing.

About NextDecade LLC

NextDecade, based in The Woodlands, Texas, is a development and management company of land- based and floating LNG projects creating innovative opportunities globally in the integrated natural gas industry. By bringing together people, companies and opportunities, NextDecade assembles the best mix of assets to deliver successful projects. NextDecade’s current focus includes its Rio Grande LNG project in Brownsville, Texas, in addition to the Pelican Island LNG project in Galveston, Texas. Founded in 2010, NextDecade represents a team of industry leaders with extensive experience in the full LNG value chain, including successfully closing major LNG off-take deals, LNG/FLNG technology, and project management. The experienced team has developed, led, closed and operated industry-leading LNG, Gas and Electricity projects globally. For more information, please visit www.next-decade.com.

About Rio Grande LNG, LLC / Rio Bravo Pipeline, LLC

Rio Grande LNG is a multi-billion dollar land-based LNG export project proposed for the Brownsville Ship Channel, located on the Texas Gulf Coast near Brownsville, Texas. NextDecade’s project includes plans for up to 6 liquefaction trains utilizing proven, reliable, safe, and efficient technology, with a nominal output capacity of 4.5 million tons of LNG per train per year. Rio Bravo Pipeline is an approximately 140- mile proposed pipeline project that would supply Rio Grande LNG with its feed gas. The first phase of the Rio Grande LNG / Rio Bravo Pipeline project represents a direct investment in excess of US$8 billion, is expected to create 4,000-6,000 construction jobs, more than 200 fulltime jobs and thousands of indirect jobs. The Final Investment Decision (FID) will come only after the FERC and related permitting agencies have given full authorization to proceed and upon successful closing of project financing. For more information related to Rio Grande LNG or Rio Bravo Pipeline, please visit www.riograndelng.com.

Statements made herein by NextDecade or any of its officers, directors, members, shareholders, employees, advisors, representatives, contractors or agents (“ND Representatives”) may include statements of future expectations and other forward-looking statements that are based on such ND’s or ND Representatives’ present views and assumptions and involve known and unknown risks and uncertainties that could cause actual results, performance or events to materially differ from those expressed or implied in such statements. ND and ND Representatives assume no obligation to update any forward-looking statement or to update any information contained herein.