Exhibit 99.1

Energy Transfer Partners and Regency Energy Partners
Enter into Agreement to Acquire Midstream Assets from Louis Dreyfus Highbridge Energy for
Approximately $1.925 Billion

Acquisition to Add Significant NGL Platforms, Expand Asset Portfolios

DALLAS, March 22, 2011 — Energy Transfer Partners, L.P. (NYSE: ETP) (“ETP”) and Regency Energy Partners LP (NASDAQ: RGNC) (“Regency”) announced today that they have formed a joint venture to purchase LDH Energy Asset Holdings LLC (“LDH”) from Louis Dreyfus Highbridge Energy LLC (“Louis Dreyfus”) for approximately $1.925 billion in cash.

LDH owns and operates a natural gas liquids, or NGL, storage, fractionation and transportation business. LDH’s storage assets are primarily located in Mont Belvieu, Texas, one of the largest NGL storage, distribution and trading complexes in North America. Its West Texas Pipeline transports NGLs through a 1,066-mile intrastate pipeline system that originates in the Permian Basin in west Texas, passes through the Barnett Shale production area in north Texas and terminates at the Mont Belvieu storage and fractionation complex. LDH also owns and operates fractionation and processing assets located in Louisiana.

The acquisition of LDH is expected to significantly expand ETP’s and Regency’s asset portfolios, adding an NGL platform with storage, transportation and fractionation capabilities. Additionally, this acquisition will provide both ETP and Regency with additional consistent fee-based revenues.

At closing, ETP will contribute $1.35 billion in exchange for a 70-percent ownership interest in the joint venture, while Regency will contribute $578 million in exchange for a 30-percent ownership interest in the joint venture. The joint venture will be managed by a two-person board of directors, with ETP and Regency each having the right to appoint one director. ETP will operate the assets on behalf of the joint venture with the existing LDH employees.

“With increased producer activity in the liquid-rich shale plays, we believe the LDH assets give ETP and Regency a tremendous advantage in the NGL business within our existing geographic footprints, a goal we have both been working toward for some time,” said Mike Smith, vice president of mergers and acquisitions for ETP. “This acquisition, combined with our existing natural gas infrastructure, will allow ETP and Regency to provide and profit from a full array of midstream services required by our customers.”

“We see a number of exciting growth opportunities for these assets, which will allow both partnerships to compete in a new business platform of the midstream value chain, add downstream capabilities and capitalize on favorable NGL

market fundamentals,” said Mike Bradley, president and chief executive officer of Regency. “In addition, we anticipate that Louis Dreyfus will remain an important customer of LDH, and that this transaction will present possibilities to partner with Louis Dreyfus on existing and future growth opportunities.”

ETP and Regency expect to initially fund their respective ownership interests in the joint venture under their revolving credit facilities, to be followed by permanent financing that is commensurate with ETP’s commitment to maintain, and Regency’s goal to achieve, investment grade credit ratings.

Completion of the acquisition is subject to customary closing conditions, including customary regulatory approvals, and the transaction is expected to close in the second quarter of 2011.

ETP’s owner, Energy Transfer Equity (NYSE: ETE) (“ETE”) acquired 100-percent interest in Regency’s general partner in May 2010. Today, ETE owns the general partner of both ETP and Regency, both of which remain independent publicly traded partnerships.

TELECONFERENCE

ETE and ETP will hold a conference call to discuss the transaction details on Wednesday, March 23, 2011, at 9 a.m. Central Time (10 a.m. Eastern Time). Afterward, on March 23, Regency will hold a conference call at 10 a.m. Central Time (11 a.m. Eastern Time).

The dial-in number for the ETE/ETP call is 1-800-261-3417, pass code 58958938. The ETE and ETP call will be broadcast live via an Internet web cast which can be accessed through www.energytransfer.com and will also be available for replay on the Partnership’s website for a limited time. The investor presentation to be used in connection with the conference call can also be accessed by visiting the ETP website at www.energytransfer.com under “Presentations.”

The dial-in number for the Regency call is 1-866-713-8562 in the United States, or +1-617-597-5310 outside the United States, pass code 88481624. A live webcast of the call can be accessed on the investor information page of Regency Energy Partners’ Web site at www.regencyenergy.com and will also available for replay on the Partnership’s website for a limited time. The investor presentation to be used in connection with the conference call can also be accessed by visiting the Regency website at www.regencyenergy.com under “Investor Relations.”

Certain matters discussed in this press release include “forward-looking” statements within the meaning of Section 27A of the Securities Act of 1933, as amended and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Forward-looking statements are identified as any statement that does not relate strictly to historical or current facts. Statements using words such as “anticipate,” “believe,” “intend,” “project,” “plan,” “expect,” “continue,” “estimate,” “goal,” “forecast,” “may” or similar expressions help identify forward-looking statements. Although we believe our forward-looking

statements are based on reasonable assumptions, current expectations and projections about future events, we cannot give assurances that such expectations will prove to be correct. Forward-looking statements are subject to a variety of risks, uncertainties and assumptions. These risks and uncertainties include the risks that these transactions may not be consummated or that the benefits contemplated thereunder are achieved. Additional risks include, volatility in the price of oil, natural gas, and natural gas liquids, declines in the credit markets and the availability of credit for ETP or Regency as well as for their customers, the level of creditworthiness of, and performance by, ETP’s and Regency’s counterparties and customers, ETP’s and Regency’s ability to access capital to fund organic growth projects and acquisitions, and ETP’s and Regency’s ability to obtain debt and equity financing on satisfactory terms, ETP’s and Regency’s use of derivative financial instruments to hedge commodity and interest rate risks, the amount of collateral required to be posted from time-to-time in ETP’s and Regency’s transactions, changes in commodity prices, interest rates, and demand for the ETP’s and Regency’s services, changes in laws and regulations impacting the midstream sector of the natural gas industry, weather and other natural phenomena, industry changes including the impact of consolidations and changes in competition, ETP’s and Regency’s ability to obtain required approvals for construction or modernization of their facilities and the timing of production from such facilities, and the effect of accounting pronouncements issued periodically by accounting standard setting boards. Therefore, actual results and outcomes may differ materially from those expressed in such forward-looking information.

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 update publicly or to revise any forward-looking statements, whether as a result of new information, future events or otherwise.

About Energy Transfer Partners

Energy Transfer Partners, L.P. (NYSE: ETP) is a publicly traded partnership owning and operating a diversified portfolio of energy assets. ETP has pipeline operations in Arkansas, Arizona, Colorado, Louisiana, Mississippi, New Mexico, Utah, and West Virginia and owns the largest intrastate pipeline system in Texas. ETP currently has natural gas operations that include more than 17,500 miles of gathering and transportation pipelines, treating and processing assets, and three storage facilities located in Texas. ETP also is one of the three largest retail marketers of propane in the United States, serving more than one million customers across the country.

About Regency Energy Partners

Regency Energy Partners LP (Nasdaq: RGNC) is a growth-oriented, midstream energy partnership engaged in the gathering, contract compression, processing, marketing and transporting of natural gas and natural gas liquids. For more information, visit the Regency Energy Partners LP Web site at www.regencyenergy.com.

About Energy Transfer Equity

Energy Transfer Equity, L.P. (NYSE:ETE) is a publicly traded partnership, which owns the general partner of Energy Transfer Partners and approximately 50.2 million ETP limited partner units; and owns the general partner of Regency Energy Partners and approximately 26.3 million Regency limited partner units.

CONTACT:

Energy Transfer Partners:
Vicki Granado
Granado Communications Group
Media Relations
(214) 599-8785
or
Brent Ratliff
Energy Transfer
Investor Relations
(214) 981-0700

Regency Energy Partners LP:
Lyndsay Hannah
Manager, Communications & Public Relations
(214) 840-5477
IR@regencygas.com
or
Elizabeth Cornelius
HCK2 Partners
Media Relations
(972) 716-0500 x26
elizabeth.cornelius@hck2.com