Management will host a live conference call and internet web-cast to discuss the transaction at 10:00 a.m. Central Time, Tuesday, September 7, 2010. The call-in number for the conference call is 1-877-405-3427, and the conference name is Inergy, L.P. The live internet web-cast and the replay can be accessed on Inergy’s Web site, www.inergylp.com. A digital recording of the call will be available for one week following the call by dialing 1-800-642-1687 and entering the pass code 99418303.About Inergy, L.P. and Inergy Holdings, L.P. Inergy, L.P., headquartered in Kansas City, Mo., is among the fastest growing master limited partnerships in the country. The company’s operations include the retail marketing, sale, and distribution of propane to residential, commercial, industrial, and agricultural customers. Today, Inergy serves nearly 800,000 retail customers from over 300 customer service centers throughout the United States. The company also operates a 40 Bcf natural gas storage business; a liquid petroleum gas storage business; a solution-mining and salt production company; and a propane supply logistics, transportation, and wholesale marketing business that serves independent dealers and multi-state marketers in the United States and Canada. Inergy Holdings, L.P.’s assets consist of its ownership interest in Inergy, L.P., including limited partnership interests, ownership of the general partners, and the incentive distribution rights. This news release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Forward-looking statements represent our intentions, plans, expectations, assumptions, and beliefs about future events. This release includes forward-looking statements concerning the expectation that the closing conditions will be satisfied and the Tres Palacios acquisition will close, the accretion expectations as a result of Tres Palacios, the availability and timing of any expansion possibilities at Tres Palacios, the expectation that the acquisition will be funded by a combination of debt and equity, the anticipated future storage capacity at storage projects as well as future demand for such capacity, and the timing of the pending simplification transaction with Inergy Holdings, L.P. Forward-looking statements are subject to certain risks, uncertainties, and assumptions, many of which are outside our control. Should one or more of these risks or uncertainties materialize or any underlying assumption proves incorrect, actual results may vary materially from those anticipated, estimated, or projected. Among the key factors that could cause actual results to differ materially from those referred to in the forward-looking statements are: weather conditions that vary significantly from historically normal conditions, the demand for high deliverability natural gas storage capacity in the Northeast and in Texas, the general level of natural gas and other hydrocarbon product demand, the availability of natural gas, the price of natural gas to the consumer compared to the price of alternative and competing fuels, our ability to successfully implement our business plan for midstream expansion, our ability to generate available cash for distribution to unitholders, the outcome of certificate and rate decisions issued by the Federal Energy Regulatory Commission, and the costs and effects of legal, regulatory, and administrative proceedings against us or which may be brought against us. These and other risks and assumptions are described in Inergy’s annual report on Form 10-K and other filings we make with the United States Securities and Exchange Commission, which are available at the SEC’s website at www.sec.gov. In light of these risks, uncertainties and assumptions, the events described in the forward-looking statements might not occur or might occur to a different extent or at a different time than we have described. We undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. Corporate news, unit prices, and additional information about Inergy, including reports from the United States Securities and Exchange Commission, are available on the company’s web site, www.InergyLP.com. For more information, contact Mike Campbell in Inergy’s Investor Relations Department at 816-842-8181 or via e-mail at firstname.lastname@example.org.