A shareholder who purchased units of New Source Energy Partners L.P. 11% Series A Cumulative Convertible Preferred Units (NSLP-PA), filed a lawsuit in the U.S. District Court for the Southern District of New York against New Source Energy Partners L.P., the underwriters of the New Source Energy Partners 11% Series A Cumulative Convertible Preferred Units issued pursuant to the Offering Documents, and certain Individual Defendants over alleged securities laws violations.