Ring Energy Inc (REI): MSD Partners Increases Its Stake to 5.94%

CUSIP NO.

76680V108

13G

1	NAMES OF REPORTING PERSONS

		MSD Partners, L.P.

2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)					(a) ☐
						(b) ☒

3	SEC USE ONLY

4	CITIZENSHIP OR PLACE OF ORGANIZATION

		Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH			5	SOLE VOTING POWER

					-0-

			6	SHARED VOTING POWER

					2,488,266

			7	SOLE DISPOSITIVE POWER

					-0-

			8	SHARED DISPOSITIVE POWER

					2,488,266

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

		2,488,266

10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)					☐


11	PERCENT OF CLASS REPRESENTED IN ROW (9)

		5.94% ¹

12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

		PN

*	SEE INSTRUCTIONS BEFORE FILLING OUT.

¹	The percentage used above is calculated based on 41,896,942 shares of common stock outstanding as of April 21, 2016, as reported in the Company’s Prospectus Supplement filed with the Commission on April 22, 2016.

Page 2 of 7 – SEC Filing