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|        |  |  |  |  |
|   |   | FORM 10-K/A |   |   |

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|        |  |  |  |  |
|   |   | (Amendment No. 1) |   |   |

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|--------------------------------------------------------------------------------------------|
|                                                                                            |  |  |  |  |
| (Mark One)                                                                                 |   |   |   |   |
| x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934     |
| For the fiscal year ended                                                                  |   | December 31, 2016 |
| OR                                                                                         |   |   |
| o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
| For the transition period                                                                  | from |   | to |   |
|                                                                                       |   |   |   |   |

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|        |  |  |  |  |
|   | PENNTEX MIDSTREAM PARTNERS, LP |   |
|   | (Exact Name of Registrant as Specified in Its Charter) |   |

|                                                                |
|----------------------------------------------------------------|
|                                                                |  |  |  |  |  |  |
| Delaware                                                       |   | 47-1669563 |
| (State or Other Jurisdiction of Incorporation or Organization) |   | (IRS Employer Identification Number) |
|                                                           |   |   |   |   |   |   |

|                                                     |
|-----------------------------------------------------|
|                                                     |  |
| Title of Each Class                                 | Name of Exchange on Which Registered |
| Common Units Representing Limited Partner Interests | NASDAQ Global Select Market |

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|--------|
|        |
|   |

|                                                                                                                                                                                                                                                                                                                                                                                                   |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                                                                                                                                                                                                                                                                                                                                                                                   |  |
| Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act                                                                                                                                                                                                                                                                            | Yes   o     No   x |
|                                                                                                                                                                                                                                                                                                                                                                                              |   |
| Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.                                                                                                                                                                                                                                                                      | Yes   o     No   x |
|                                                                                                                                                                                                                                                                                                                                                                                              |   |
| Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.                                          | Yes   x     No   o |
|                                                                                                                                                                                                                                                                                                                                                                                              |   |
| Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  | Yes  x     No   o |
|                                                                                                                                                                                                                                                                                                                                                                                              |   |
| Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.                       | x |
|                                                                                                                                                                                                                                                                                                                                                                                              |   |

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|                                                                                                                                                                                                                                                                                                                                                            |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                                                                                                                                                                                                                                                                                                                                            |  |  |
| Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer”, “accelerated filer”, and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one): |
|                                                                                                                                                                                                                                                                                                                                                       |   |   |
| Large accelerated filer                                                                                                                                                                                                                                                                                                                                    | o | Accelerated filer o |
| Non-accelerated filer                                                                                                                                                                                                                                                                                                                                      | x (Do not check if a smaller reporting company) | Smaller reporting company o |
|                                                                                                                                                                                                                                                                                                                                                       |   |   |

|                                                                                                                       |
|-----------------------------------------------------------------------------------------------------------------------|
|                                                                                                                       |  |
| Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). | Yes   o     No   x |
|                                                                                                                  |   |

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|        |  |  |  |  |
|   |   |   | PennTex Midstream Partners, LP |
|   |   |   | By: PennTex Midstream GP, LLC, its general partner |
|   |   |   |   |   |
| Date:  | July 5, 2017 |   | By: | /s/ Thomas E. Long |
|   |   |   |   | Thomas E. Long |
|   |   |   |   | Chief Financial Officer |
|   |   |   |   | (Principal Financial Officer) |