Crestwood Equity Partners LP (NYSE: CEQP) (“Crestwood Equity” or “Crestwood”) and First Reserve today announced that Crestwood Permian Basin Holdings LLC (“CPJV” or the “Joint Venture”), a joint venture focused on developing, owning and operating midstream infrastructure in the Delaware Basin, has completed the acquisition of Crestwood’s Willow Lake gathering and processing assets located in Eddy County, New Mexico. The Joint Venture now owns all of Crestwood’s Delaware Basin assets. The Joint Venture will continue to be owned 50% by Crestwood and 50% by First Reserve, a leading global private equity investment firm exclusively focused on energy.

As previously announced, CPJV will build a 200 million cubic feet per day (“MMcf/d”) cryogenic gas processing plant located in Reeves County, TX (the “Orla Plant”) and related infrastructure required to connect the Willow Lake system to the plant (the “Orla Express Pipeline”) and multiple third-party pipelines. Under the terms of the transaction, Crestwood contributed its Willow Lake gathering and processing assets to the Joint Venture at a value of $151 million, and this value will be credited as part of Crestwood’s capital requirements to the expansion projects.

As previously announced, the initial project scope for the CPJV expansion projects will include the Orla Express Pipeline, a 33 mile, 20 inch high pressure line connecting the existing Willow Lake gathering system in Eddy County, NM to the Orla plant. The Orla plant will offer full liquids handling and multiple residue and NGL interconnects. Initial project capital is expected to be approximately $170 million and the project is expected to be placed into service in the second half of 2018.

The Orla Plant is supported by current dedications from existing Willow Lake customers and is strategically located to attract processing volumes in Eddy County, NM as well as areas around the Orla Express Pipeline and the Nautilus system. The Nautilus system is a newly-built gas gathering system serving a subsidiary of Royal Dutch Shell (SWEPI) in Loving and Ward counties, Texas. The Orla Plant will provide needed incremental processing capacity and enhanced netbacks to producers through improved connectivity to the best NGL and residue gas takeaway options out of the basin. Once the Orla plant is placed into service, the Joint Venture’s asset footprint will include over 200,000 acres of dedication, 285 MMcf/d of processing capacity, 300 MMcf/d of gathering capacity, and over 360 miles of pipe.

About First Reserve

First Reserve is a leading global private equity investment firm exclusively focused on energy. With nearly 35 years of industry insight, investment expertise and operational excellence, the Firm has cultivated an enduring network of global relationships and raised approximately USD $31 billion of aggregate capital since inception. First Reserve has completed over 600 transactions (including platform investments and add-on acquisitions), creating several notable energy companies throughout the Firm’s history. Its portfolio companies operate on six continents, spanning the energy spectrum from upstream oil and gas to midstream and downstream, including resources, equipment and services, and associated infrastructure. Visit us at www.firstreserve.com for more information.

About Crestwood Equity Partners LP

Houston, Texas, based Crestwood Equity Partners LP (NYSE: CEQP) is a master limited partnership that owns and operates midstream businesses in multiple unconventional shale resource plays across the United States. Crestwood Equity is engaged in the gathering, processing, treating, compression, storage and transportation of natural gas; storage, transportation, terminalling, and marketing of NGLs; and gathering, storage, terminalling and marketing of crude oil.

Forward-Looking Statements

This news release contains forward-looking statements within the meaning of the U.S. Private Securities Litigation Reform Act of 1995 and Section 21E of the Securities and Exchange Act of 1934. The words “expects,” “believes,” anticipates,” “plans,” “will,” “shall,” “estimates,” and similar expressions identify forward-looking statements, which are generally not historical in nature. Forward-looking statements are subject to risks and uncertainties and are based on the beliefs and assumptions of management, based on information currently available to them. Although Crestwood believes that these forward-looking statements are based on reasonable assumptions, it can give no assurance that any such forward-looking statements will materialize. Important factors that could cause actual results to differ materially from those expressed in or implied from these forward-looking statements include the risks and uncertainties described in Crestwood’s reports filed with the Securities and Exchange Commission, including its Annual Report on Form 10-K and its subsequent reports, which are available through the SEC’s EDGAR system at www.sec.gov and on our website. Readers are cautioned not to place undue reliance on forward-looking statements, which reflect management’s view only as of the date made, and Crestwood assumes no obligation to update these forward-looking statements.