13G Filing: Wampanoag Capital Llc and Azure Midstream Partners Lp (NYSE:AZUR)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No.     )*

Azure
Midstream Partners, LP

(Name of Issuer)

Common Units Representing Limited Partner Interests

(Title of Class of Securities)

05501X100

(CUSIP Number)

March 22, 2017

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to
designate the rule pursuant to which this Schedule 13G is filed:

☐ Rule 13d-1(b)

☒ Rule 13d-1(c)

☐
Rule 13d-1(d)

The information required in 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 (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).

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Item 1(a).    Name of Issuer: Azure Midstream Partners, LP (the
Company)

Item 1(b).    Address of Issuers Principal Executive Offices:

12377 Merit Drive

Suite 300

Dallas, Texas
75251

Item 2(a).    Name of Person Filing:

Item 2(b).    Address of Principal Business Office or, if None, Residence:

Item 2(c).    Citizenship:

This
statement is filed by:

The foregoing persons are hereinafter sometimes collectively referred to as the Reporting Persons.

Item 2(d).    Title of Class of Securities: Common Units Representing Limited Partner Interests (the Common
Units)

Item 2(e).    CUSIP No.: 05501X100.

Not Applicable.

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As of the date hereof, (i) Wampanoag Capital Partners Fund LP
holds and may be deemed to beneficially own 1,115,292 Common Units and (ii) Wampanoag Capital LLC, as the investment manager of Wampanoag Capital Partners Fund LP, and Richard Tosi, as the Sole Member of Wampanoag Capital LLC, may be deemed to
be the beneficial owner of 1,115,292 Common Units held by Wampanoag Capital Partners Fund LP.

The percentages used herein and in the rest of this Schedule 13G are
calculated based upon 11,284,341 Common Units reported to be outstanding in the Companys Quarterly Report on Form 10-Q on November 2, 2016. Therefore, as of the date hereof, based on the Companys outstanding Common Units held
by Wampanoag Capital Partners Fund LP, the Reporting Persons may be deemed to beneficially own approximately 9.88% of the outstanding Common Units.

The foregoing should not be construed in and of itself as an admission by Wampanoag Capital LLC or Richard Tosi as to the beneficial ownership
of the Common Units held by Wampanoag Capital Partners Fund LP.

Not Applicable.

See Item 4.

Not Applicable.

Not Applicable.

Not Applicable.

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By signing below the Reporting Person certifies that, to the best of its
knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in
connection with or as a participant in any transaction having that purpose or effect.

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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.

EXHIBIT 1

JOINT FILING AGREEMENT

The undersigned
acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the
necessity of filing additional joint filing agreements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning him or it contained
herein and therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent that he or it knows or has reason to believe that such information is inaccurate.

DATED: March 31, 2017