Southcross Energy Partners SC 13D Southcross Energy Partners, L.P.

Exhibit 7

JOINT FILING AGREEMENT

Each of the undersigned agrees that (i) the statement on Schedule 13D relating to the Common Units of Southcross Energy Partners LP has been adopted and filed on behalf of each of them, (ii) all future amendments to such statement on Schedule 13D will, unless written notice to the contrary is delivered as described below, be jointly filed on behalf of each of them, (iii) the provisions of Rule 13d-I(k)(1) under the Securities Exchange Act of 1934 to apply to each of them. This agreement may be terminated with respect to the obligations to jointly file future amendments to such statement on Schedule 13D as to any of the undersigned upon such person giving written notice thereof to each of the other persons signatory hereto, at the principal office thereof.

Date: August 14, 2014

TW BBTS Aggregator LP, a Delaware limited partnership
By:	TW/LM GP Sub, LLC, its General Partner
By:	/s/ Brian Blakeman
	Brian Blakeman, Vice President Tax & Finance

BB-II Holdco LP, a Delaware limited partnership
By:	TW/LM GP Sub, LLC, its General Partner
By:	/s/ Brian Blakeman
	Brian Blakeman, Vice President Tax & Finance

TW/LM GP Sub. LLC, a Texas limited liability company
By:	/s/ Brian Blakeman
	Brian Blakeman, Vice President Tax & Finance

Tailwater Energy Fund I LP, a Delaware limited partnership
By:	TW GP EF-I, LP, its General Partner
By:	TW GP EF-I GP, LLC, its General Partner
By:	/s/ Brian Blakeman
	Brian Blakeman, Vice President Tax & Finance

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TW GP EF-I, LP, a Delaware limited partnership
By:	TW GP EF-I GP, LLC, its General Partner
By:	/s/ Brian Blakeman
	Brian Blakeman, Vice President Tax & Finance

TW GP EF-I GP, LLC, a Texas limited liability company
By:	/s/ Brian Blakeman
	Brian Blakeman, Vice President Tax & Finance

TAILWATER LLC, a Texas limited liability company
By:	/s/ Brian Blakeman
	Brian Blakeman, Vice President Tax & Finance

/s/ Jason H. Downie
	Jason H. Downie

/s/ Edward Herring
	Edward Herring

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