UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM N-PX ANNUAL REPORT OF PROXY VOTING RECORD OF REGISTERED MANAGEMENT INVESTMENT COMPANY INVESTMENT COMPANY ACT FILE NUMBER: 811-22492 NAME OF REGISTRANT: MainGate Trust ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 6075 Poplar Ave., Suite 720 Memphis, TN 38119 NAME AND ADDRESS OF AGENT FOR SERVICE: Geoffrey Mavar MainGate Trust 6075 Poplar Ave., Suite 720 Memphis, TN 38119 REGISTRANT'S TELEPHONE NUMBER: (901) 537-1866 DATE OF FISCAL YEAR END: 11/30 DATE OF REPORTING PERIOD: 07/01/2017 - 06/30/2018 MainGate MLP Fund -------------------------------------------------------------------------------------------------------------------------- BUCKEYE PARTNERS, L.P. Agenda Number: 934800473 -------------------------------------------------------------------------------------------------------------------------- Security: 118230101 Meeting Type: Annual Meeting Date: 05-Jun-2018 Ticker: BPL ISIN: US1182301010 -------------------------------------------------------------------------------------------------------------------------- Prop.# Proposal Proposal Proposal Vote For/Against Type Management 1. DIRECTOR Pieter Bakker Mgmt For For Barbara M. Baumann Mgmt For For Mark C. McKinley Mgmt For For 2. Amendment of partnership agreement to Mgmt For For remove provisions that prevent general partner from causing Buckeye Partners, L.P. to issue any class or series of limited partnership interests having preferences or other special or senior rights over the LP Units without the prior approval of unitholders holding an aggregate of at least two-thirds of the outstanding LP Units. 3. The ratification of the selection of Mgmt For For Deloitte & Touche LLP as Buckeye Partners, L.P.'s independent registered public accountants for 2018. 4. The approval, in an advisory vote, of the Mgmt For For compensation of Buckeye's named executive officers as described in our proxy statement pursuant to Item 402 of Regulation S-K. -------------------------------------------------------------------------------------------------------------------------- MAGELLAN MIDSTREAM PARTNERS,L.P. Agenda Number: 934734686 -------------------------------------------------------------------------------------------------------------------------- Security: 559080106 Meeting Type: Annual Meeting Date: 26-Apr-2018 Ticker: MMP ISIN: US5590801065 -------------------------------------------------------------------------------------------------------------------------- Prop.# Proposal Proposal Proposal Vote For/Against Type Management 1. DIRECTOR Robert G. Croyle Mgmt For For Stacy P. Methvin Mgmt For For Barry R. Pearl Mgmt For For 2. Advisory Resolution to Approve Executive Mgmt For For Compensation 3. Ratification of Appointment of Independent Mgmt For For Auditor -------------------------------------------------------------------------------------------------------------------------- PLAINS ALL AMERICAN PIPELINE, L.P. Agenda Number: 934772319 -------------------------------------------------------------------------------------------------------------------------- Security: 726503105 Meeting Type: Annual Meeting Date: 15-May-2018 Ticker: PAA ISIN: US7265031051 -------------------------------------------------------------------------------------------------------------------------- Prop.# Proposal Proposal Proposal Vote For/Against Type Management 1. DIRECTOR Bobby S. Shackouls Mgmt For For Christopher M. Temple Mgmt For For 2. Ratification of the appointment of Mgmt For For PricewaterhouseCoopers LLP as our independent registered public accounting firm for 2018. 3. The approval, on a non-binding advisory Mgmt For For basis, of our named executive officer compensation. 4. Non-binding advisory vote on the frequency Mgmt 2 Years Against with which future advisory votes to approve our named executive officer compensation should be held. -------------------------------------------------------------------------------------------------------------------------- PLAINS GP HOLDINGS, L.P. Agenda Number: 934772321 -------------------------------------------------------------------------------------------------------------------------- Security: 72651A207 Meeting Type: Annual Meeting Date: 15-May-2018 Ticker: PAGP ISIN: US72651A2078 -------------------------------------------------------------------------------------------------------------------------- Prop.# Proposal Proposal Proposal Vote For/Against Type Management 1. DIRECTOR Bobby S. Shackouls Mgmt For For Christopher M. Temple Mgmt For For 2. Ratification of the appointment of Mgmt For For PricewaterhouseCoopers LLP as our independent registered public accounting firm for 2018. 3. The approval, on a non-binding advisory Mgmt For For basis, of our named executive officer compensation. 4. Non-binding advisory vote on the frequency Mgmt 2 Years Against with which future advisory votes to approve our named executive officer compensation should be held. -------------------------------------------------------------------------------------------------------------------------- SEMGROUP CORPORATION Agenda Number: 934791496 -------------------------------------------------------------------------------------------------------------------------- Security: 81663A105 Meeting Type: Annual Meeting Date: 16-May-2018 Ticker: SEMG ISIN: US81663A1051 -------------------------------------------------------------------------------------------------------------------------- Prop.# Proposal Proposal Proposal Vote For/Against Type Management 1. DIRECTOR Ronald A. Ballschmiede Mgmt For For Sarah M. Barpoulis Mgmt For For Carlin G. Conner Mgmt For For Karl F. Kurz Mgmt For For James H. Lytal Mgmt For For William J. McAdam Mgmt For For Thomas R. McDaniel Mgmt For For 2. To approve, on a non-binding advisory Mgmt For For basis, the compensation of the company's named executive officers. 3. Ratification of Grant Thornton LLP as Mgmt For For independent registered public accounting firm for 2018. 4. To approve an amendment to the company's Mgmt For For Amended and Restated Certificate of Incorporation, as amended, to increase the number of authorized shares of Class A Common Stock. -------------------------------------------------------------------------------------------------------------------------- TARGA RESOURCES CORP. Agenda Number: 934775579 -------------------------------------------------------------------------------------------------------------------------- Security: 87612G101 Meeting Type: Annual Meeting Date: 24-May-2018 Ticker: TRGP ISIN: US87612G1013 -------------------------------------------------------------------------------------------------------------------------- Prop.# Proposal Proposal Proposal Vote For/Against Type Management 1.1 Election of Director: Robert B. Evans Mgmt For For 1.2 Election of Director: Joe Bob Perkins Mgmt For For 1.3 Election of Director: Ershel C. Redd Jr. Mgmt For For 2. Ratification of Selection of Independent Mgmt For For Accountants 3. Advisory Vote to Approve Executive Mgmt For For Compensation -------------------------------------------------------------------------------------------------------------------------- THE WILLIAMS COMPANIES, INC. Agenda Number: 934785265 -------------------------------------------------------------------------------------------------------------------------- Security: 969457100 Meeting Type: Annual Meeting Date: 10-May-2018 Ticker: WMB ISIN: US9694571004 -------------------------------------------------------------------------------------------------------------------------- Prop.# Proposal Proposal Proposal Vote For/Against Type Management 1a. Election of Director: Alan S. Armstrong Mgmt For For 1b. Election of Director: Stephen W. Bergstrom Mgmt For For 1c. Election of Director: Stephen I. Chazen Mgmt For For 1d. Election of Director: Charles I. Cogut Mgmt For For 1e. Election of Director: Kathleen B. Cooper Mgmt For For 1f. Election of Director: Michael A. Creel Mgmt For For 1g. Election of Director: Peter A. Ragauss Mgmt For For 1h. Election of Director: Scott D. Sheffield Mgmt For For 1i. Election of Director: Murray D. Smith Mgmt For For 1j. Election of Director: William H. Spence Mgmt For For 2. Ratification of Ernst & Young LLP as Mgmt For For auditors for 2018. 3. Approval, by nonbinding advisory vote, of Mgmt For For the company's executive compensation. -------------------------------------------------------------------------------------------------------------------------- WESTERN GAS PARTNERS, LP Agenda Number: 934678903 -------------------------------------------------------------------------------------------------------------------------- Security: 958254104 Meeting Type: Special Meeting Date: 17-Oct-2017 Ticker: WES ISIN: US9582541044 -------------------------------------------------------------------------------------------------------------------------- Prop.# Proposal Proposal Proposal Vote For/Against Type Management 1. TO APPROVE THE WESTERN GAS PARTNERS, LP Mgmt For For 2017 LONG-TERM INCENTIVE PLAN (THE LTIP PROPOSAL) 2. TO APPROVE THE ADJOURNMENT OF THE SPECIAL Mgmt For For MEETING TO A LATER DATE OR DATES, IF NECESSARY OR APPROPRIATE, TO SOLICIT ADDITIONAL PROXIES IN THE EVENT THERE ARE NOT SUFFICIENT VOTES AT THE TIME OF THE SPECIAL MEETING TO APPROVE THE LTIP PROPOSAL * Management position unknown SIGNATURES Pursuant to the requirements of the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. (Registrant) MainGate Trust By (Signature) /s/ Matthew G. Mead Name Matthew G. Mead Title President Date 08/20/2018