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CUSIP NO 748349305 SCHEDULE 13G PAGE 2 OF 10 PAGES
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1 Name of Reporting Person / IRS Identification Number:
Advisory Research, Inc.*
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2 Check the Appropriate Box if a Member of a Group (a) [X]
(See Instructions) (b) [ ]
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3 SEC Use Only
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4 Citizenship or Place of Organization
Delaware
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Number of
5 Sole Voting Power
Shares 0 Shares
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Beneficially
6 Shared Voting Power
Owned By 3,100,615 Shares
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Each
7 Dispositive Power
Reporting 0 Shares
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Person
8 Shared Dispositive Power
With 3,100,615 Shares
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9 Aggregate Amount Beneficially Owned by Each Reporting Person
3,100,615 Shares
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10 Check if the Aggregate Amount in Row (9) Excludes Certain
Shares [ ] (See Instructions)
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11 Percent of Class Represented by Amount in Row (9)
9.6%
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12 Type of Reporting Person
IA
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*The filing persons previously filed a Schedule 13D, as amended,
with respect to this issuer. This Schedule 13G is filed solely to
convert such Schedule 13D, as amended, into a Schedule 13G.
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CUSIP NO 748349305 SCHEDULE 13G PAGE 3 OF 10 PAGES
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1 Name of Reporting Person / IRS Identification Number:
Advisory Research Energy Fund, L.P.*
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2 Check the Appropriate Box if a Member of a Group (a) [X]
(See Instructions) (b) [ ]
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3 SEC Use Only
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4 Citizenship or Place of Organization
Illinois
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Number of
5 Sole Voting Power
Shares 0 Shares
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Beneficially
6 Shared Voting Power
Owned By 945,089 Shares
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Each
7 Dispositive Power
Reporting 0 Shares
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Person
8 Shared Dispositive Power
With 945,089 Shares
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9 Aggregate Amount Beneficially Owned by Each Reporting Person
945,089 Shares
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10 Check if the Aggregate Amount in Row (9) Excludes Certain
Shares [ ] (See Instructions)
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11 Percent of Class Represented by Amount in Row (9)
2.9%
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12 Type of Reporting Person
PN
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*The filing persons previously filed a Schedule 13D, as amended,
with respect to this issuer. This Schedule 13G is filed solely to
convert such Schedule 13D, as amended, into a Schedule 13G.
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CUSIP NO 748349305 SCHEDULE 13G PAGE 4 OF 10 PAGES
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1 Name of Reporting Person / IRS Identification Number:
Advisory Research Micro Cap Value Fund, L.P.*
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2 Check the Appropriate Box if a Member of a Group (a) [X]
(See Instructions) (b) [ ]
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3 SEC Use Only
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4 Citizenship or Place of Organization
Illinois
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Number of
5 Sole Voting Power
Shares 0 Shares
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Beneficially
6 Shared Voting Power
Owned By 1,503,421 Shares
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Each
7 Dispositive Power
Reporting 0 Shares
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Person
8 Shared Dispositive Power
With 1,503,421 Shares
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9 Aggregate Amount Beneficially Owned by Each Reporting Person
1,503,421 Shares
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10 Check if the Aggregate Amount in Row (9) Excludes Certain
Shares [ ] (See Instructions)
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11 Percent of Class Represented by Amount in Row (9)
4.6%
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12 Type of Reporting Person
PN
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*The filing persons previously filed a Schedule 13D, as amended,
with respect to this issuer. This Schedule 13G is filed solely to
convert such Schedule 13D, as amended, into a Schedule 13G.
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CUSIP NO 748349305 SCHEDULE 13G PAGE 5 OF 10 PAGES
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Item 1 (a) Name of Issuer: Quest Resource Corporation
Item 1 (b) Name of Issuer's Principal Executive Offices:
210 Park Avenue, Suite 2750
Oklahoma City, Oklahoma 73102
Item 2 (a) Person Filing: Advisory Research, Inc.,
Advisory Research Energy Fund, L.P. and
Advisory Research Micro Cap Value Fund, L.P.
Item 2 (b) Address: 180 North Stetson St., Suite 5500
Chicago, IL 60601
Item 2 (c) Citizenship: Advisory Research, Inc. - Delaware
Advisory Research Energy Fund L.P. - Illinois
Advisory Research Micro Cap Value Fund
L.P.-Illinois
Item 2 (d) Title of Class of Securities:
Common Stock, par value $0.001 per share
Item 2 (e) CUSIP Number: 748349305
Item 3 If this statement is filed pursuant to Rules
13d-1(b) or 13d-2(b), 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
(e) [x] Investment Advisor in accordance with
section 240.13d-1(b)(1)(ii)(E)
(f) [ ] Employee Benefit Plan or Endowment Fund
in accordance with section 240.13d-1(b)
(1)(ii)(F)
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CUSIP NO 748349305 SCHEDULE 13G PAGE 6 OF 10 PAGES
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(g) [ ] Parent Holding Company or Control Person
in accordance with section 13d-1(b)
(1)(ii)(G)
(h) [ ] A savings association as defined in
section 3(b) of the Federal Deposit
Insurance Act
(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 240.3d-1(b)(1)
(ii)(J).
**Advisory Research, Inc. is the
investment adviser of Advisory Research
Energy Fund, L.P. and Advisory Research
Micro Cap Value Fund, L.P.
Item 4 Ownership
Provide the following information regarding the
aggregate number and percentage of the class of
securities of the issuer identified in Item 1.
(a) Amount Beneficially Owned:
Advisory Research, Inc. - 3,100,615
Advisory Research Energy Fund, L.P. - 945,089
Advisory Research Micro Cap Value Fund, L.P. - 1,503,421
(b) Percent of Class
Advisory Research, Inc. - 9.6%
Advisory Research Energy Fund, L.P. - 2.9%
Advisory Research Micro Cap Value Fund, L.P. - 4.6%
(c) Number of shares as to which reporting person has:
(i) Sole power to vote or to direct the vote:
Advisory Research, InC. - 0
Advisory Research Energy Fund, L.P. - 0
Advisory Research Micro Cap Value Fund, L.P. - 0
(ii) Shared power to vote or to direct the vote:
Advisory Research, Inc. - 3,100,615
Advisory Research Energy Fund, L.P. - 945,089
Advisory Research Micro Cap Value Fund, L.P. - 1,503,421
(iii) Sole power to dispose or to direct the
disposition of:
Advisory Research, Inc. - 0
Advisory Research Energy Fund, L.P. - 0
Advisory Research Micro Cap Value Fund, L.P. - 0
(iv) Shared power to dispose or to direct the
disposition of:
Advisory Research, Inc. - 3,100,615
Advisory Research Energy Fund, L.P. - 945,089
Advisory Research Micro Cap Value Fund, L.P. - 1,503,421
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CUSIP NO 748349305 SCHEDULE 13G PAGE 7 OF 10 PAGES
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Item 5 Ownership of Five Percent or 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: If any other person is known to have
the right to receive or the power to direct the receipt
of dividends from, or the proceeds from the sale of,
such securities, a statement to that effect should be
included in response to this item and, if such
interest relates to more than five percent of the
class, such person should be identified. A listing of
the shareholders of an investment company registered
under the Investment Company Act of 1940 or the
beneficiaries of employee benefit plan, pension fund
or endowment fund is not required.
Not Applicable
Item 7 Identification and Classification of the Subsidiary
Which Acquired the Security being Reported on by the
Parent Holding Company: If a parent holding company
or control person has filed this schedule, pursuant to
Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and
attach an exhibit stating the identity and the Item
3 classification of the relevant subsidiary. If a
parent holding company or control person has filed
this schedule pursuant to Rule 13d-1(c) or Rule
13d-1(d), attach an exhibit stating the identifi-
cation of the relevant subsidiary.
Not Applicable
Item 8 Identification and Classification if Members of
the Group: If a group has filed this schedule
pursuant to ss.240.13d-1(b)(1)(ii)(J), so indicate
under Item 3(j) and attach an exhibit stating the
identity and Item 3 classification of each member
of the group. If a group has filed this schedule
pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach
an exhibit stating the identity of each member of
the group.
See Exhibit B
Item 9 Notice of Dissolution of Group: Notice of
dissolution of a group may be furnished as an exhibit
stating the date of the dissolution and that all
further filings with respect to transactions in the
security reported on will be filed, if required,
by members of the group, in their individual
capacity. See Item 5.
Not Applicable
Item 10 Certification
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 such securities and were not acquired and are
not held in connection with or as a participant
in any transaction having such purposes or effect.
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CUSIP NO 748349305 SCHEDULE 13G PAGE 8 OF 10 PAGES
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SIGNATURES
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.
Date: November 5, 2008
ADVISORY RESEARCH, INC.
/s/ Brien M. O'Brien
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Name: Brien M. O'Brien
Title: Chairman & CEO
ADVISORY RESEARCH ENERGY FUND, L.P.
By: Advisory Research, Inc.,
General Partner
/s/ Brien M. O'Brien
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Name: Brien M. O'Brien
Title: Chairman & CEO
ADVISORY RESEARCH MICRO CAP VALUE FUND, L.P.
By: Advisory Research, Inc.,
General Partner
/s/ Brien M. O'Brien
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Name: Brien M. O'Brien
Title: Chairman & CEO
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CUSIP NO 748349305 SCHEDULE 13G PAGE 9 OF 10 PAGES
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EXHIBIT A
JOINT FILING AGREEMENT
The undersigned hereby agree to the joint filing on behalf of
each of them of a statement on Schedule 13G (including amendments
thereto) with respect to the Common Stock of Quest Resource
Corporation and that this Agreement be included as an Exhibit
to such joint filing. This Agreement may be executed in any number
of counterparts all of which taken together shall constitute one
and the same instrument.
IN WITNESS WHEREOF, the undersigned hereby execute this Agreement
this 5th day of November, 2008
ADVISORY RESEARCH, INC.
/s/ Brien M. O'Brien
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Name: Brien M. O'Brien
Title: Chairman & CEO
ADVISORY RESEARCH ENERGY FUND, L.P.
By: Advisory Research, Inc.,
General Partner
/s/ Brien M. O'Brien
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Name: Brien M. O'Brien
Title: Chairman & CEO
ADVISORY RESEARCH MICRO CAP VALUE FUND, L.P.
By: Advisory Research, Inc.,
General Partner
/s/ Brien M. O'Brien
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Name: Brien M. O'Brien
Title: Chairman & CEO
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CUSIP NO 748349305 SCHEDULE 13G PAGE 10 OF 10 PAGES
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EXHIBIT B
Advisory Research, Inc.
Advisory Research Energy Fund, L.P.
Advisory Research Micro Cap Value Fund, L.P.
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