13G Filing: Nokomis Capital and Transatlantic Petroleum Ltd. (TAT)

Brett Hendrickson’s Nokomis Capital disclosed a 10.3% position in Transatlantic Petroleum Ltd. (TAT) in a 13G filing. At the end of the third quarter, Nokomis Capital held 2.18 million shares of the company valued at $5.5 million at the end of September. You can access the original SEC filing by clicking here.

Ownership Summary Table

Name Sole Voting Power Shared Voting Power Sole Dispositive Power Shared Dispositive Power Aggregate Amount Owned Power Percent of Class
Nokomis Capital, L.L.C. 0 4,394,083 0 4,394,083 10.3%
Brett Hendrickson 0 4,394,083 0 4,394,083 10.3%

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Page 1 of 7 SEC Filing

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

SCHEDULE 13G

(Rule 13d-102)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO

RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED

PURSUANT TO RULE 13d-2(b)

TransAtlantic
Petroleum Ltd.

(Name of Issuer)

Common shares, par value $0.10

(Title of Class of Securities)

G89982113

(CUSIP Number)

December 31, 2015

(Date of Event Which Requires Filing of this Statement)

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

x Rule 13d-1(b)

¨ Rule 13d-1(c)

¨ Rule 13d-1(d)

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Page 2 of 7 SEC Filing


CUSIP No. G89982113 13G
  1

NAME OF
REPORTING PERSONS

I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

Nokomis Capital, L.L.C.

  2

CHECK THE APPROPRIATE BOX IF A MEMBER
OF A GROUP*

(a)  ¨        (b)  ¨

  3

SEC USE ONLY

  4

CITIZENSHIP OR PLACE OF
ORGANIZATION

Texas

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

5

SOLE VOTING POWER

0

6

SHARED VOTING POWER

4,394,083

7

SOLE DISPOSITIVE POWER

0

8

SHARED DISPOSITIVE POWER

4,394,083

  9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

4,394,083

10

CHECK BOX IF THE AGGREGATE AMOUNT IN
ROW (9) EXCLUDES CERTAIN SHARES*

¨

11

PERCENT OF CLASS REPRESENTED BY AMOUNT
IN ROW 9

10.3% **

12

TYPE OF REPORTING PERSON*

IA, OO

* SEE INSTRUCTIONS BEFORE FILLING OUT
** SEE ITEM 4(b).

2

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Page 3 of 7 SEC Filing


CUSIP No. G89982113 13G
  1

NAME OF
REPORTING PERSONS

I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

Brett Hendrickson

  2

CHECK THE APPROPRIATE BOX IF A MEMBER
OF A GROUP*

(a)  ¨        (b)  ¨

  3

SEC USE ONLY

  4

CITIZENSHIP OR PLACE OF
ORGANIZATION

U.S. Citizen

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

5

SOLE VOTING POWER

0

6

SHARED VOTING POWER

4,394,083

7

SOLE DISPOSITIVE POWER

0

8

SHARED DISPOSITIVE POWER

4,394,083

  9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

4,394,083

10

CHECK BOX IF THE AGGREGATE AMOUNT IN
ROW (9) EXCLUDES CERTAIN SHARES*

¨

11

PERCENT OF CLASS REPRESENTED BY AMOUNT
IN ROW 9

10.3% **

12

TYPE OF REPORTING PERSON*

HC, IN

* SEE INSTRUCTIONS BEFORE FILLING OUT
** SEE ITEM 4(b).

3

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Page 4 of 7 SEC Filing


SCHEDULE 13G

This Schedule 13G (this “Schedule 13G”) is being filed on behalf of Nokomis Capital, L.L.C., a Texas limited liability company
(“Nokomis Capital”), and Mr. Brett Hendrickson, the principal of Nokomis Capital, relating to Common shares, par value $0.10 (the “Common Stock”), of TransAtlantic Petroleum Ltd., a Bermuda exempted company (the
“Issuer”).

This Schedule 13G relates to Common Stock of the Issuer purchased by Nokomis Capital through the accounts of certain
private funds and managed accounts (collectively, the “Nokomis Accounts”). Nokomis Capital serves as the investment adviser to the Nokomis Accounts and may direct the vote and dispose of the 4,394,083 shares of Common Stock held by the
Nokomis Accounts. As the principal of Nokomis Capital, Mr. Hendrickson may direct the vote and disposition of the 4,394,083 shares of Common Stock held by the Nokomis Accounts.

Item 1(a) Name of Issuer.

TransAtlantic Petroleum Ltd.

Item 1(b) Address of Issuer’s Principal Executive Offices.

16803 Dallas Parkway

Addison, Texas 75001

Item 2(a) Name of Person Filing.

Nokomis Capital, L.L.C. (“Nokomis Capital”) and
Mr. Brett Hendrickson.

Item 2(b) Address of Principal Business Office, or, if none, Residence.

2305 Cedar Springs Rd.,
Suite 420

Dallas, TX 75201

Item 2(c) Citizenship or Place of Organization.

Nokomis Capital is a limited liability company
organized under the laws of the State of Texas. Mr. Hendrickson is the principal of Nokomis Capital and is a United States citizen.

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Page 5 of 7 SEC Filing


Item 2(d) Title of Class of Securities.

Common shares, par value $0.10 (the “Common
Stock”).

Item 2(e) CUSIP Number.

G89982113

Item 3 Reporting Person.

If this statement is filed pursuant to Rule 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 (15 U.S.C. 78o).
(b) ¨ Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).
(c) ¨ Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).
(d) ¨ Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).
(e) x An investment advisor in accordance with §240.13d-1(b)(1)(ii)(E).
(f) ¨ An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F).
(g) x A parent holding company or control person in accordance with §240.13d-1(b)(1)(ii)(G).
(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 (15 U.S.C. 80a-3).
(j) ¨ Group, in accordance with §240.13d-1(b)(1)(ii)(J).
Item 4 Ownership.
(a) Nokomis Capital and Mr. Hendrickson are the beneficial owners of 4,394,083 shares of Common Stock. This amount consists of (i) 2,629,377 shares of Common Stock and (ii) 1,764,706 shares of Common Stock
receivable upon conversion of presently convertible notes.

5

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Page 6 of 7 SEC Filing


(b) Nokomis Capital and Mr. Hendrickson are the beneficial owners of 10.3% of the outstanding Common Shares. This percentage is determined by dividing 4,394,083 by the sum of (i) 41,011,990, the number of shares
of Common Stock issued and outstanding as of November 4, 2015, as calculated the Issuer’s Form 10-Q filed on November 5, 2015 and (ii) 1,764,706, the number of shares of Common Stock receivable by upon conversion of presently
convertible notes held by the Nokomis Accounts.
(c) Nokomis Capital, as the investment adviser to the Nokomis Accounts, may direct the vote and dispose of the 4,394,083 shares of Common Stock held by the Nokomis Accounts. As the principal of Nokomis Capital,
Mr. Hendrickson may direct the vote and disposition of the 4,394,083 shares of Common Stock held by the Nokomis Accounts.
Item 5 Ownership of Five Percent or Less of a Class.

Inapplicable.

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

Inapplicable.

Item 7 Identification and Classification of the Subsidiary which Acquired the Security Being Reported On by the Parent Holding Company.

Inapplicable.

Item 8 Identification and Classification of Members of the Group.

Inapplicable.

Item 9 Notice of Dissolution of Group.

Inapplicable.

Item 10 Certification.

By signing below each of the Reporting Persons certifies that, to the
best of such person’s knowledge and belief, the securities referred to above were acquired and held in the ordinary course of business and were not acquired and were 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.

Exhibits Exhibit 99.1

Joint Filing Agreement dated January 15, 2016, by and among
Nokomis Capital and Mr. Hendrickson.

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Page 7 of 7 SEC Filing


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.

Date: January 15, 2016

NOKOMIS CAPITAL, L.L.C.
By:

/s/ Brett Hendrickson

Brett Hendrickson
Manager

/s/ Brett Hendrickson

Brett Hendrickson

7

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