Exhibit 99.1

FOR IMMEDIATE RELEASE

MAY 6, 2011

CROSSTEX ENERGY REPORTS FIRST-QUARTER 2011 RESULTS

2011 Earnings News Release and Conference Call Schedule Set

DALLAS, May 6, 2011 — The Crosstex Energy companies, Crosstex Energy, L.P. (NASDAQ: XTEX) (the Partnership) and Crosstex Energy, Inc. (NASDAQ: XTXI) (the Corporation), today reported earnings for the first-quarter 2011.

First-Quarter 2011 — Crosstex Energy, L.P. Financial Results

The Partnership realized adjusted EBITDA of $53.6 million and distributable cash flow of $30.9 million for the first quarter of 2011, compared with adjusted EBITDA of $43.8 million and distributable cash flow of $17.7 million for the first quarter of 2010. Adjusted EBITDA and distributable cash flow are non-GAAP financial measures and are explained in greater detail under “Non-GAAP Financial Information.” There is a reconciliation of these non-GAAP measures to net income (loss) in the tables at the end of this news release.

The Partnership reported net income of $0.1 million for the first quarter of 2011 versus a net loss of $17.3 million for the first quarter of 2010. The first-quarter 2010 net loss included a $14.7 million loss on the extinguishment of debt and a $14.3 million gain on sale of property.

“We are pleased with our solid first-quarter results, which enabled us to significantly increase our distribution and dividend payments to investors while maintaining strong coverage,” said Barry E. Davis, Crosstex President and Chief Executive Officer. “We believe our strategically located assets, financial strength and exceptional organizational capabilities position us to take advantage of the abundant business opportunities in today’s robust energy industry environment.”

The Partnership’s first-quarter 2011 gross operating margin of $89.8 million rose $8.6 million versus the first quarter of 2010. The increase was due to higher margins on the Partnership’s gathering and transmission throughput volumes, as well as a favorable natural gas liquids (NGL) market during the quarter. Gross operating margin is a non-GAAP financial measure and is explained in greater detail under “Non-GAAP Financial Information.” There is a reconciliation of this non-GAAP measure to operating income in the tables at the end of this news release.

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The Partnership reports results by operating segment principally based on regions served. Reportable segments consist of the natural gas gathering, processing and transmission operations in north Texas (NTX); the pipelines and processing plants in Louisiana (LIG); and the south Louisiana processing and NGL assets, including gas and NGL marketing activities (PNGL). Each business segment’s contribution to the first-quarter 2011 gross operating margin change versus the first-quarter 2010, and the factors affecting those contributions, are described below:

·                  The LIG segment’s gross operating margin increased $3.9 million, primarily the result of improved pricing and higher volumes on the northern part of the system and a more favorable processing environment.

·                  The PNGL segment’s gross operating margin rose $2.9 million primarily due to greater NGL fractionation and marketing activity and increased inlet volumes and run time at the Blue Water plant.

·                  The NTX segment’s gross operating margin increased $1.8 million. Higher gross operating margins from the gathering and transmission assets were partially offset by increased losses on a certain delivery contract for the first quarter of 2011 versus the first-quarter 2010.

The Partnership’s first-quarter 2011 operating expenses of $25.0 million declined $1.4 million, or five percent, from the first quarter of 2010.  The decrease primarily resulted from normal repair and maintenance cost fluctuations. General and administrative expenses declined $0.9 million, or seven percent, versus the first quarter of 2010 largely due to lower professional fees and services costs. Depreciation and amortization expense for the first quarter of 2011 rose $2.6 million, or 10 percent, compared with the first quarter of 2010 primarily due to increased amortization of intangibles. Interest expense declined to $19.8 million for the first quarter of 2011 from $26.9 million for the first quarter of 2010 primarily due to non-recurring expenses associated with interest rate swaps included in the first quarter of 2010 and reductions in debt outstanding.

The net loss per limited partner common unit for the first quarter of 2011 was $0.07 compared with a net loss of $0.81 per common unit for the first quarter of 2010.

First-Quarter 2011 — Crosstex Energy, Inc. Financial Results

The Corporation reported a net loss of $1.5 million for the first quarter of 2011 compared with a net loss of $5.4 million for the first-quarter 2010.

On a stand-alone basis, the Corporation had cash on hand of approximately $5.0 million and no debt as of the end of the first quarter of 2011.

Crosstex to Hold Earnings Conference Call Today

The Partnership and the Corporation will hold their quarterly conference call to discuss first-quarter 2011 results today, May 6, at 10:00 a.m. Central time (11:00 a.m. Eastern time). The dial-in number for the call is 1-888-679-8038.  Callers outside the United States should dial 1-617-213-4850. The passcode for all callers is 68581827.  Investors are advised to dial in to the call at least 10 minutes prior to the call time to register.  Participants may preregister for the call at https://www.theconferencingservice.com/prereg/key.process?key=PCNLKXWHV.  Preregistrants will be issued a pin number to use when dialing in to the live call, which will provide quick access to the conference by bypassing the operator upon connection.  Interested parties also can access the live webcast of the call on the Investors page of Crosstex’s website at www.crosstexenergy.com.

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After the conference call, a replay can be accessed until August 5, 2011, by dialing 1-888-286-8010. International callers should dial 1-617-801-6888 for a replay.  The passcode for all callers listening to the replay is 91147849.  Interested parties also can visit the Investors page of Crosstex’s website to listen to a replay of the call.

Crosstex Sets 2011 Earnings News Release and Conference Call Schedule

The schedule for the remaining 2011 quarterly earnings news releases and conference calls for the Partnership and the Corporation is as follows:

·                  Friday, August 5, 2011 — 2011 Second-Quarter Results

·                  Friday, November 4, 2011 — 2011 Third-Quarter Results

·                  Tuesday, February 28, 2012 — 2011 Fourth-Quarter and Year-End Results

About the Crosstex Energy Companies

Crosstex Energy, L.P., a midstream natural gas company headquartered in Dallas, operates approximately 3,300 miles of pipeline, nine processing plants and three fractionators. The Partnership currently provides services for 3.2 billion cubic feet of natural gas per day, or approximately six percent of marketed U.S. daily production.

Crosstex Energy, Inc. owns the two percent general partner interest, a 25 percent limited partner interest and the incentive distribution rights of Crosstex Energy, L.P.

Additional information about the Crosstex companies can be found at www.crosstexenergy.com.

Non-GAAP Financial Information

This press release contains non-generally accepted accounting principle financial measures that the Partnership refers to as gross operating margin, adjusted EBITDA and distributable cash flow. Gross operating margin is defined as revenue minus purchased gas and NGLs. Adjusted EBITDA is defined as earnings before interest, income taxes, depreciation and amortization, impairments, loss on extinguishment of debt, stock-based compensation, noncash derivative items, gain on the sale of assets and other miscellaneous noncash items. Distributable cash flow is defined as earnings before certain noncash charges and the gain on the sale of assets less maintenance capital expenditures. The amounts included in the calculation of these measures are computed in accordance with generally accepted accounting principles (GAAP) with the exception of maintenance capital expenditures.  Maintenance capital expenditures are capital expenditures made to replace partially or fully depreciated assets in order to maintain the existing operating capacity of the assets and to extend their useful lives.

The Partnership believes these measures are useful to investors because they may provide users of this financial information with meaningful comparisons between current results and prior-reported results and a meaningful measure of the Partnership’s cash flow after it has satisfied the capital and related requirements of its operations.

Gross operating margin, adjusted EBITDA and distributable cash flow, as defined above, are not measures of financial performance or liquidity under GAAP. They should not be considered in isolation or as an indicator of the Partnership’s performance. Furthermore, they should not be seen as measures of liquidity or a substitute for metrics prepared in accordance with GAAP. A reconciliation of these measures to net income (loss) is included among the following tables.

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This press release contains forward-looking statements within the meaning of the federal securities laws. These statements are based on certain assumptions made by the Partnership and the Corporation based upon management’s experience and perception of historical trends, current conditions, expected future developments and other factors the Partnership and the Corporation believe are appropriate in the circumstances. These statements include, but are not limited to, statements with respect to the Partnership’s and the Corporation’s guidance and future outlook, distribution and dividend guidelines and future estimates and results of operations. Such statements are subject to a number of assumptions, risks and uncertainties, many of which are beyond the control of the Partnership and the Corporation, which may cause the Partnership’s and the Corporation’s actual results to differ materially from those implied or expressed by the forward-looking statements. These risks include the following: (1) the Partnership’s profitability is dependent upon prices and market demand for natural gas and NGLs; (2) the Partnership’s substantial indebtedness could limit its flexibility and adversely affect its financial health; (3) the Partnership may not be able to obtain funding which would impair its ability to grow; (4) the Partnership and the Corporation do not have diversified assets; (5) drilling levels may decrease due to deterioration in the credit and commodity markets; (6) the Partnership’s credit risk management efforts may fail to adequately protect against customer nonpayment; (7) the Partnership’s use of derivative financial instruments does not eliminate its exposure to fluctuations in commodity prices and interest rates; (8) the Partnership may not be successful in balancing its purchases and sales; (9) the amount of natural gas transported in the Partnership’s gathering and transmission lines may decline as a result of reduced drilling by producers, competition for supplies, reserve declines and reduction in demand from key customers and markets; (10) the level of the Partnership’s processing operations may decline for similar reasons; (11) operational, regulatory and other asset-related risks, including weather conditions such as hurricanes, exist because a significant portion of the Partnership’s assets are located in southern Louisiana; and (12) other factors discussed in the Partnership’s and the Corporation’s Annual Reports on Form 10-K for the year ended December 31, 2010, and other filings with the Securities and Exchange Commission. The Partnership and the Corporation have no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events, or otherwise.

(Tables follow)

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CROSSTEX ENERGY, L.P.

Selected Financial Data

(All amounts in thousands except per unit amounts)

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CROSSTEX ENERGY, L.P.

Reconciliation of Net Income (Loss) to Adjusted EBITDA and Distributable Cash Flow

(All amounts in thousands except ratios and per unit amounts)

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CROSSTEX ENERGY, L.P.

Operating Data

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CROSSTEX ENERGY, INC.

Selected Financial Data

(All amounts in thousands except per share amounts)

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