UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No.    )*

Renewable Energy Group, Inc.

(Name of Issuer)

Common Stock, par value $0.0001 per share

(Title of Class of Securities)

75972A 30 1

(CUSIP Number)

June 3, 2014

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

¨ Rule 13d-1(b)

x Rule 13d-1(c)

¨ Rule 13d-1(d)

* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

CUSIP No. 75972A 30 1

1	NAMES OF REPORTING PERSONS Sooner Holdings, Inc.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a)  ¨        (b)  ¨
3	SEC USE ONLY
4	CITIZENSHIP OF PLACE OF ORGANIZATION State of Delaware, United States of America
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:		5	SOLE VOTING POWER 3,493,613
		6	SHARED VOTING POWER 0
		7	SOLE DISPOSITIVE POWER 3,493,613
		8	SHARED DISPOSITIVE POWER 0
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,493,613
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES  ¨
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 8.3%
12	TYPE OF REPORTING PERSON CO

Item 1.

(a) Name of Issuer:

Renewable Energy Group, Inc.

(b) Address of Issuer’s Principal Executive Offices:

416 South Bell Avenue, Ames, Iowa 50010

Item 2.

(a) Name of Person Filing:

Sooner Holdings, Inc.

(b) Address of Principal Business Office, or, if none, Residence:

5416 South Yale Avenue, Suite 400, Tulsa, Oklahoma 74135

(c) Citizenship:

State of Delaware, United States of America

(d) Title of Class of Securities:

Common Stock, par value $0.0001 per share

(e) CUSIP Number:

75972A 30 1

Item 3. If this statement is filed pursuant to Rules 13d-1(b), or 13d-2(b) or (c), check whether the person filing is a:

(a) ¨ Broker or dealer registered under Section 15 of the Act;

(b) ¨ Bank as defined in Section 3(a)(6) of the Act;

(c) ¨ Insurance company as defined in Section 3(a)(19) of the Act;

(d) ¨ Investment company registered under Section 8 of the Investment Company Act of 1940;

(e) ¨ An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E) under the Act;

(f) ¨ An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F) under the Act;

(g) ¨ A parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G) under the Act;

(h) ¨ A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i) ¨ A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940;

(j) ¨ Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K) under the Act. If filing as a non-U.S. institution in accordance with Rule 240.13d-1(b)(1)(ii)(J), please specify the type of institution:             

Item 4. Ownership

Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer defined in Item 1.

(a) Amount beneficially owned:

3,493,613 shares

(b) Percent of class:

8.3%

(c) Number of shares as to which such person has:

(i) Sole power to vote or to direct the vote: 3,493,613

(ii) Shared power to vote or to direct the vote: 0

(iii) Sole power to dispose of to direct the disposition of: 3,493,613

(iv) Shared power to dispose or to direct the disposition of: 0

Item 5. Ownership of Five Percent of Less of a Class

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following ¨.

Item 6. Ownership of More than Five Percent on Behalf of Another Person

Not applicable.

Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person

Not applicable.

Item 8. Identification and Classification of Members of the Group

Not applicable.

Item 9. Notice of Dissolution of Group

Not applicable.

Item 10. Certifications

By signing below, I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

DATED: June 10, 2014

SOONER HOLDINGS, INC.
By:	/s/ Karen L. Power
Name:	Karen L. Power
Title:	Chief Executive Officer