UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

CONE Midstream Partners LP

(Name of Issuer)

Common Units

(Title of Class of Securities)

206812109

(CUSIP Number)

David M. Khani

Chief Financial Officer

1000 CONSOL Energy Drive

Canonsburg, Pennsylvania 15317

(724) 485-4000

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

November 16, 2016

(Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition which is subject of this Schedule 13D, and is filing this statement because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box.  ☐

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7(b) for other parties to whom copies are to be sent.

The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Act”), or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

CUSIP No.: 206812109

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CUSIP No.: 206812109

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Explanatory Note:

This Schedule 13D relates to the common units representing limited partner interests (the “Common Units”) of CONE Midstream Partners LP, a Delaware limited partnership (the “Issuer”). The Issuer’s principal executive office is at 1000 CONSOL Energy Drive, Canonsburg, Pennsylvania 15317. The Reporting Persons hold 7,110,637 Common Units and 14,581,561 Subordinated Units (as defined below).

Upon the termination of the subordination period as set forth in the First Amended and Restated Agreement of Limited Partnership of the Issuer, dated as of September 30, 2014 (the “Partnership Agreement”), the subordinated units (“Subordinated Units”) representing limited partner interests in the Issuer held by the Reporting Persons (defined below) are convertible into Common Units on a one-for-one basis as set forth in the Partnership Agreement.

References to the “General Partner” refer to CONE Midstream GP LLC, a Delaware limited liability company and the general partner of the Issuer.

On September 30, 2014, the Issuer completed its initial public offering (the “IPO”) of 20,125,000 Common Units (including 2,625,000 Common Units issued pursuant to the underwriters’ exercise in full of their option to purchase additional Common Units) at a price to the public of $22.00 per Common Unit ($20.68 per Common Unit, net of the underwriting discount) pursuant to a Registration Statement on Form S-1, as amended (File No. 333- 198352), initially filed by the Issuer with the U.S. Securities and Exchange Commission (the “Commission”) on August 25, 2014 (the “Registration Statement”) pursuant to the Securities Act of 1933, as amended (the “Securities Act”).

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Prior to the IPO, the Reporting Persons indirectly owned 50% of the limited partner interests of the Issuer. On September 30, 2014, in connection with the closing of the IPO, the Issuer entered into a Contribution, Conveyance and Assumption Agreement (the “IPO Contribution Agreement”) with CONSOL, Noble Energy, Inc. (“Noble”), CONE Gathering LLC (“CONE”), the General Partner and CONE Midstream Operating Company LLC (“Operating Company”). Immediately prior to the closing of the IPO, CONE contributed to the Issuer all of its interest in the Operating Company as consideration for 9,038,121 Common Units and 29,163,121 Subordinated Units, which CONE subsequently distributed equally to the Reporting Persons and Noble. Additionally, the General Partner received a continuation of its 2% general partner interest and all of the incentive distribution rights of the Issuer. These transactions, among others, were made in a series of steps outlined in the IPO Contribution Agreement, which is an exhibit to the Registration Statement. The Operating Company indirectly owned a 75% general partner interest in CONE Midstream DevCo I LP, a Delaware limited partnership (“DevCo I”). As result of the immediate distribution by CONE of the Common Units it received in the IPO to its members, CNX Gas LLC, the indirect subsidiary of CONSOL, acquired 4,519,060 Common Units and 14,581,561 Subordinated Units. CONSOL is deemed to indirectly beneficially own the Common Units and Subordinated Units held by CNX Gas LLC.

On November 15, 2016, the Issuer entered into a Contribution Agreement (the “First Drop Down Contribution Agreement”) with CONE, the General Partner, the Operating Company and certain other signatories thereto, under which CONE contributed the remaining 25% limited partner interest in DevCo I (the “First Drop Down”), in exchange for (i) cash consideration in the amount of $140.0 million, (ii) the Issuer’s issuance of 5,183,154 Common Units at an issue price of $20.42 per Common Unit (the “Common Unit Issue Price”), or an aggregate $105.8 million in equity consideration, to CONE (which in turn, immediately distributed such Common Units equally to the Reporting Persons and Noble), and (iii) the Issuer’s issuance to the General Partner of an additional general partner interest in the Issuer in an amount necessary for the General Partner to maintain its two percent general partner interest in the Issuer. The Common Unit Issue Price was calculated as the volume-weighted average trading price of the Issuer’s Common Units over the trailing 20-day trading period ending on November 11, 2016. Following the First Drop Down and including interests it held previously thereto, the Operating Company owns all of the partner interests of DevCo I. As result of the immediate distribution by CONE of the Common Units it received in the First Drop Down to its members, CNX Gas LLC, the indirect subsidiary of CONSOL, acquired 2,591,577 Common Units. CONSOL is deemed to indirectly beneficially own the Common Units and Subordinated Units held by CNX Gas LLC. The summaries contained herein of the Partnership Agreement, IPO Contribution Agreement and First Drop Down Contribution Agreement do not purport to be complete and are qualified in their entirety by reference to the full text of such documents, which are included as Exhibits A through C, respectively, to this Schedule 13D and are incorporated herein by reference.

The Reporting Persons acquired the Common Units and Subordinated Units reported herein for investment purposes, and the Reporting Persons intend to review their investments in the Issuer on a continuing basis. Any actions the Reporting Persons might undertake will be dependent upon the Reporting Persons’ review of numerous factors, including, but not limited to: an ongoing evaluation of the Issuer’s business, financial condition, operations and prospects; price levels of the Issuer’s securities; general market, industry and economic conditions; the relative attractiveness of alternative business and investment opportunities; and other future developments.

The Reporting Persons may, at any time and from time to time, acquire additional securities of the Issuer, or retain or sell all or a portion of the securities then held, in the open market or in privately negotiated transactions.

In addition, the Reporting Persons own 50% of the membership interests of CONE, which owns all of the membership interests in the Issuer’s General Partner and appoints the General Partner’s board of directors. The Reporting Persons may engage in discussions with management, the board of directors, and unitholders of the Issuer and other relevant parties or encourage such persons to consider or explore extraordinary corporate transactions, such as: a merger; sales or acquisitions of assets or businesses; changes to the capitalization or distribution policy of the Issuer; or other material changes to the Issuer’s business or legal structure.

(a) The Subordinated Units owned of record by the Reporting Persons are convertible into Common Units on a one-for-one basis upon the termination of the subordination period as set forth in the Partnership

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Agreement. The General Partner may grant restricted units, phantom units, distribution equivalent rights, unit options, unit appreciation rights, unit awards, profits interest units and other unit-based awards to officers, directors and employees of the General Partner and its affiliates pursuant to the CONE Midstream Partners LP 2014 Long-Term Incentive Plan (the “LTIP”).

(b) None.

(c) None.

(d) The General Partner has sole responsibility for conducting the Issuer’s business and managing its operations and is ultimately controlled by CONE. The Reporting Persons own 50% of the membership interests of CONE. Some of the Reporting Persons’ executive officers and directors also serve as executive officers or directors of the General Partner. Neither the General Partner nor its board of directors will be elected by the Issuer’s unitholders. Through their ownership interest in CONE, the Reporting Persons have significant influence in electing the members of the board of directors of the General Partner.

(e) Subject to the restrictions contained in the Partnership Agreement, the Reporting Persons, as indirect owners of 50% of the membership interests the General Partner, has significant influence over the amount of distributions declared by the Issuer and may influence the Issuer to change its capitalization, through the issuance of debt or equity securities, from time to time in the future. The Reporting Persons have no current intention of changing the present capitalization or distribution policy of the Issuer.

(f) None.

(g) None.

(h) None.

(i) None.

(j) None.

(a) - (j) Except for the matters set forth above in this Schedule 13D, the Reporting Persons have no plans or proposals that relate to, or could result in, any of the matters referred to in paragraphs (a) through (j) inclusive of the instructions to Item 4 of Schedule 13D.

If all of the Subordinated Units were converted into Common Units as of the date of this report, the Reporting Person’s beneficial ownership would be a 34.2% aggregate limited partner interest.

Through its ownership of the General Partner, the Reporting Person may be deemed to indirectly beneficially own 50% of the General Partner’s 2.0% general partner interest and 50% of the incentive distribution rights in the Issuer.

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The information provided or incorporated by reference in Item 3 and Item 4 is hereby incorporated by reference herein.

Partnership Agreement

The General Partner, as the sole general partner of the Partnership, CONE, as the initial limited partner of the Issuer, and all other limited partners, among others, are party to the Partnership Agreement. Among other things, the Partnership Agreement sets forth the rights of the parties thereto with respect to distributions of cash, allocation of profits and losses, the terms of conversion of the Subordinated Units into Common Units and voting rights. Subject to the terms and conditions of the Partnership Agreement, the General Partner and its affiliates, including the Reporting Person, have the right to cause the Issuer to register for resale under the Securities Act and applicable state securities laws any units that they hold.

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SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

JOINT FILING AGREEMENT

In accordance with Rule 13(d)-1(k)(1) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing with each other of the attached statement on Schedule 13D and to all amendments to such statement.

IN WITNESS WHEREOF, the undersigned have executed this Joint Filing Agreement as of November 23, 2016.

Schedule I

Information regarding each managing member, director and executive officer of the Reporting Persons, or each person controlling the Reporting Persons, is set forth below.

Reporting Person: CONSOL Energy Inc.

Reporting Person: CNX Gas Company LLC

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