Exhibit 99.1

AmeriGas Partners Revises Second Quarter Earnings

VALLEY FORGE, Pa., May 15 - AmeriGas Propane, Inc., general partner of AmeriGas Partners, L.P. (NYSE: APU), reported net income attributable to AmeriGas Partners for the second quarter of Fiscal 2013 ended March 31, 2013 of $213.2 million compared to $133.9 million for the same period last year. Net income attributable to AmeriGas Partners, L.P. for the current-year period was revised to reflect the impact of an $8.7 million adjustment to correct the Partnership’s method of accounting for certain customer credits. Net income attributable to AmeriGas Partners, L.P. for the current-year period also includes the impact of $5.4 million in acquisition and transition expenses associated with Heritage Propane. Net income attributable to AmeriGas Partners, L.P. for the prior-year quarter includes the impact of a $13.4 million loss on extinguishment of debt and $8.1 million in acquisition and transition expenses. The Partnership’s adjusted earnings before interest expense, income taxes, depreciation and amortization (Adjusted EBITDA) increased to $309.0 million for the second quarter of fiscal 2013 compared to $246.0 million for the same period last year. The improved results for the current-year period reflect winter weather that was markedly colder than the record warmth experienced during the prior-year period and, to a much lesser extent, the full-period effects of Heritage Propane, which was acquired January 12, 2012.

Jerry E. Sheridan, chief executive officer of AmeriGas, said, “Given our results thus far and our current assessment of business conditions for the remainder of the fiscal year, we continue to anticipate Adjusted EBITDA for fiscal 2013 to be near the midpoint of our previously-stated guidance of $620 million to $645 million.”

Adjusted EBITDA is a non-GAAP financial measure defined herein as earnings before interest expense, income taxes, depreciation and amortization, losses on extinguishment of debt and Heritage Propane acquisition and transition expenses. Management believes the presentation of this measure provides useful information to investors to more effectively evaluate the year-over-year results of operations of the Partnership. This measure is not comparable to measures used by other entities and should only be considered in conjunction with net income attributable to AmeriGas Partners, L.P. A reconciliation of Adjusted EBITDA to the most comparable GAAP financial measure is included on the last page of this press release.

About AmeriGas

AmeriGas is the nation’s largest retail propane marketer, serving over two million customers in all 50 states from over 2,100 distribution locations. UGI Corporation, through subsidiaries, is the sole General Partner and owns 26% of the Partnership. An affiliate of Energy Transfer Partners, L.P. owns 32% of the Partnership and the public owns the remaining 42%.

Comprehensive information about AmeriGas is available on the Internet at http://www.amerigas.com.

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This press release contains certain forward-looking statements which management believes to be reasonable as of today’s date only. Actual results may differ significantly because of risks and uncertainties that are difficult to predict and many of which are beyond management’s control. You should read the Partnership’s Annual Report on Form 10-K for a more extensive list of factors that could affect results. Among them are adverse weather conditions, cost volatility and availability of propane, increased customer conservation measures, the capacity to transport propane to our market areas, the impact of pending and future legal proceedings, political, economic and regulatory conditions in the U.S. and abroad, and our ability to successfully integrate Heritage Propane and achieve anticipated synergies. The Partnership undertakes no obligation to release revisions to its forward-looking statements to reflect events or circumstances occurring after today.

AMERIGAS PARTNERS, L.P. AND SUBSIDIARIES

REPORT OF EARNINGS (REVISED) (a)

(Thousands, except per unit and where otherwise indicated)

(Unaudited)

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AMERIGAS PARTNERS, L.P. AND SUBSIDIARIES

REPORT OF EARNINGS (REVISED) (a)

(Thousands, except per unit and where otherwise indicated)

(Unaudited)

(continued)

Management uses EBITDA to compare year-over-year profitability of the business without regard to capital structure as well as to compare the relative performance of the Partnership to that of other master limited partnerships without regard to their financing methods, capital structure, income taxes or historical cost basis. In view of the omission of interest, income taxes, depreciation and amortization from EBITDA, management also assesses the profitability of the business by comparing net income attributable to AmeriGas Partners, L.P. for the relevant years.

Management also uses EBITDA to assess the Partnership’s profitability because its parent, UGI Corporation, uses the Partnership’s EBITDA to assess the profitability of the Partnership which is one of UGI Corporation’s reportable segments. UGI Corporation discloses the Partnership’s EBITDA in its disclosure about reportable segments as the profitability measure for its domestic propane segment. EBITDA in the three, six and twelve months ended March 31, 2013 includes acquisition and transition expense of $5,396, $10,884 and $45,216, respectively, associated with the Heritage Propane acquisition. EBITDA in the three, six and twelve months ended March 31, 2012 includes acquisition and transition expense of $8,138, $11,855 and $11,855, respectively, associated with the Heritage Propane acquisition. EBITDA in the three, six and twelve months ended March 31, 2012 includes pre-tax losses of $13,379, $13,379 and $32,695, respectively, from extinguishments of debt.

The following table includes reconciliations of net income attributable to AmeriGas Partners, L.P. to EBITDA and Adjusted EBITDA (1) for all periods presented:

The following table includes a reconciliation of forecasted net income attributable to AmeriGas Partners, L.P. to forecasted EBITDA and Adjusted EBITDA for the fiscal year ending September 30, 2013:

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