X0306 4 2016-11-01 1 0001617798 PennTex Midstream Partners, LP PTXP 0001643578 MRD MIDSTREAM LLC 5221 N. O'CONNOR BLVD., SUITE 1100 IRVING TX 75039 0 0 1 0 0001609238 MRD Holdco LLC 5221 N. O'CONNOR BLVD., SUITE 1100 IRVING TX 75039 0 0 1 0 0001377291 Natural Gas Partners VIII, L.P. 5221 N. O'CONNOR BLVD., SUITE 1100 IRVING TX 75039 0 0 1 0 0001408123 Natural Gas Partners IX, L.P. 5221 N. O'CONNOR BLVD., SUITE 1100 IRVING TX 75039 0 0 1 0 0001592748 NGP IX Offshore Holdings, L.P. 5221 N. O'CONNOR BLVD., SUITE 1100 IRVING TX 75039 0 0 1 0 0001610737 GFW VIII, L.L.C. 5221 N. O'CONNOR BLVD., SUITE 1100 IRVING TX 75039 0 0 1 0 0001527914 G.F.W. Energy VIII, L.P. 5221 N. O'CONNOR BLVD., SUITE 1100 IRVING TX 75039 0 0 1 0 0001597404 GFW IX, L.L.C. 5221 N. O'CONNOR BLVD., SUITE 1100 IRVING TX 75039 0 0 1 0 0001541519 G.F.W. ENERGY IX, L.P. 5221 N. O'CONNOR BLVD., SUITE 1100 IRVING TX 75039 0 0 1 0 Common Units (Limited Partner Interests) 2016-11-01 4 S 0 2127704 17.05 D 0 D Subordinated Units (Limited Partner Interests) 2016-11-01 4 S 0 5250000 17.05 A Common Units 5250000 0 D On November 1, 2016, MRD Midstream LLC ("MRD") transferred and assigned to Energy Transfer Partners, L.P. ("ETP") all of its 2,127,704 common units and 5,250,000 subordinated units of PennTex Midstream Partners, LP in exchange for a combination of cash and ETP common units with a value equal to $135,869,853 pursuant to a contribution agreement entered into among such parties, among others, on October 24, 2016 ("Contribution Agreement"). After giving effect to the transactions contemplated by the Contribution Agreement, MRD no longer owns any interests in the Issuer. This Form 4 is filed jointly by MRD, MRD Holdco LLC ("MRD Holdco"), Natural Gas Partners VIII, L.P. ("NGP VIII"), Natural Gas Partners IX, L.P. ("NGP IX"), NGP IX Offshore Holdings, L.P. ("NGP IX Offshore"), GFW VIII, L.L.C. ("GFW VIII"), G.F.W. Energy VIII, L.P. ("GFW Energy VIII"), GFW IX, L.L.C. ("GFW IX"), G.F.W. Energy IX, L.P. ("GFW Energy IX") and NGP Energy Capital Management, L.L.C. ("NGP ECM") pursuant to the transactions resulting from the Contribution Agreement. MRD is a wholly owned subsidiary of MRD Holdco. NGP VIII, NGP IX and NGP IX Offshore own a controlling interest in MRD Holdco. GFW VIII is the sole general partner of GFW Energy VIII, which is the general partner of NGP VIII, and GFW IX is the sole general partner of GFW Energy IX, which is the general partner of NGP IX and NGP IX Offshore. GFW VIII has delegated full power and authority to manage NGP VIII, and GFW IX has delegated full power and authority to manage NGP IX and NGP IX Offshore, respectively, to NGP ECM. Accordingly, each of MRD, MRD Holdco, NGP VIII, NGP IX, NGP IX Offshore, GFW VIII, GFW Energy VIII, GFW IX, GFW Energy IX and NGP ECM may be deemed to share voting and dispositive power over the reported units, and therefore may also be deemed to be the beneficial owner of these units but disclaims such ownership except to the extent of its pecuniary interest. Subordinated units will convert into common units on a one-for-one basis as described in the Issuer's Registration Statement on Form S-1 (Registration No. 333-199020). Form 1 of 2 /s/ Kyle N. Roane, Vice President of MRD Midstream LLC 2016-11-03 /s/ Kyle N. Roane, Vice President of MRD Holdco LLC 2016-11-03 /s/ Tony R. Weber , Authorized Member of GFW VIII, L.L.C., general partner of G.F.W. Energy VIII, L.P., general partner of Natural Gas Partners VIII, L.P. 2016-11-03 /s/ Tony R. Weber , Authorized Member of GFW VIII, L.L.C., general partner of G.F.W. Energy VIII, L.P. 2016-11-03 /s/ Tony R. Weber , Authorized Member of GFW VIII, L.L.C. 2016-11-03 /s/ Tony R. Weber , Authorized Member of GFW IX, L.L.C., general partner of G.F.W. Energy IX, L.P., general partner of NGP IX Offshore Holdings, L.P. 2016-11-03 /s/ Tony R. Weber , Authorized Member of GFW IX, L.L.C., general partner of G.F.W. Energy IX, L.P., general partner of Natural Gas Partners IX, L.P. 2016-11-03 /s/ Tony R. Weber , Authorized Member of GFW IX, L.L.C., general partner of G.F.W. Energy IX, L.P. 2016-11-03 /s/ Tony R. Weber , Authorized Member of Authorized Member of GFW IX, L.L.C. 2016-11-03