The board of directors of the PennTex General Partner (the PennTex Board) is
required to file a Tender Offer Solicitation/Recommendation Statement on Schedule 14D-9 (the Schedule 14D-9) with the United States Securities and Exchange Commission (the SEC) and disseminate the Schedule 14D-9 to holders of
PennTex common units, in connection with the Offer to Purchase. On the Schedule 14D-9, PennTex will be required to make a recommendation or state that it is neutral or is unable to take a position with respect to the Offer. You should review the
Schedule 14D-9 carefully upon its receipt. In evaluating this Offer, you should be aware that ETP appoints the entire board of directors of the PennTex General Partner, and four of seven members of the board of directors of the PennTex General
Partner are directors and/or executive officers of the general partner of ETP or its parent, Energy Transfer Equity, L.P.
is conditioned upon, among other things, there being validly tendered in accordance with the terms of the Offer and not withdrawn prior to 5:00 p.m., New York City time, on June 19, 2017 (the expiration date, unless ETP shall have
extended the period during which the Offer is open, in which event expiration date shall mean the latest time and date at which the Offer, as so extended by ETP, shall expire) sufficient PennTex common units such that, following the
closing of the Offer and acceptance for purchase by ETP of common units validly tendered and not properly withdrawn, ETP and its affiliates own greater than 80% of the outstanding PennTex common units, unless such condition is waived as described in
the Offer to Purchase. As of the date of the Offer to Purchase, ETP and its affiliates own 6,745,318 PennTex common units. The foregoing condition is referred to as the minimum tender condition. If the minimum tender condition is waived
by ETP, then it shall remain a non-waivable condition that a majority of the PennTex common units held by unitholders that are not affiliates of ETP are validly tendered and not properly withdrawn (referred to herein as the
majority-of-the-minority tender condition). The Offer is also subject to other conditions described in The Tender OfferConditions to the Offer in the Offer to Purchase). There is no financing condition to the
Offer. ETP reserves the right to waive any of the conditions to the Offer, other than the majority-of-the-minority condition if the minimum tender offer condition has previously been waived.
Upon the terms and subject to the conditions set forth in the Offer, ETP will accept for payment all PennTex common units that were validly
tendered and not withdrawn at or prior to the expiration date.
Any extension, termination or amendment of the Offer will be followed as
promptly as practicable by a public announcement thereof, but no later than 9:00 a.m., New York City time, on the next business day after the day of the previously scheduled expiration date.
In order to take advantage of the Offer, you must either (i) complete and sign the Letter of Transmittal in accordance with the
instructions in the Letter of Transmittal, have your signature guaranteed (if required by Instruction 1 to the Letter of Transmittal), mail or deliver the Letter of Transmittal (or a manually signed facsimile copy) and any other required
documents to American Stock Transfer & Trust Company, LLC, the depositary for the Offer (the Depositary), and either deliver the certificates for your PennTex common units along with the Letter of Transmittal to the Depositary
or tender your PennTex common units pursuant to the procedures for book-entry transfer set forth in Section II.3 of the Offer to Purchase or (ii) request your broker, dealer, commercial bank, trust company or other nominee to effect the
transaction for you. If your PennTex common units are registered in the name of a broker, dealer, commercial bank, trust company or other nominee, you must contact such broker, dealer, commercial bank, trust company or other nominee to tender your
PennTex common units. If you desire to tender your PennTex common units, and certificates evidencing your PennTex common units are not immediately available or you cannot deliver such certificates and all other required documents to the Depositary
or you cannot comply with the procedures for book-entry transfer described in Section II.3 of the Offer to Purchase, in each case prior to the expiration date, you may tender your PennTex common units by following the procedures for guaranteed
delivery set forth in Section II.3 of the Offer to Purchase.
For the purposes of the Offer, ETP will be deemed to have accepted for
payment tendered PennTex common units when, as and if ETP gives oral or written notice of ETPs acceptance to the Depositary. ETP will pay for PennTex common units accepted for payment pursuant to the Offer by deposit of the purchase price
therefor with the Depositary, which will act as agent for tendering unitholders for the purpose of receiving