FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * CAPTAIN Q, LLC   2. Issuer Name and Ticker or Trading Symbol GULFMARK OFFSHORE INC [GLF] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 301 COMMERCE STREET, SUITE 3200,  3. Date of Earliest Transaction (Month/Day/Year) 04/13/2018 (Street) FORT WORTH, TX 76102 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 04/13/2018   A   5,875 (1) A (1) 5,875 D (1) (2)   Common Stock               1,177,150 D (2) (3) (4)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
CAPTAIN Q, LLC 301 COMMERCE STREET, SUITE 3200 FORT WORTH, TX 76102	X	X
Renegade Swish, LLC 301 COMMERCE STREET SUITE 3200 FORT WORTH, TX 76102	X	X
RAYNOR GEOFFREY 301 COMMERCE STREET SUITE 3200 FORT WORTH, TX 76102	X	X

Signatures

/s/ Brandon Teague, Vice President, Captain Q, LLC		04/17/2018
**Signature of Reporting Person		Date
/s/ Brandon Teague, Vice President, Renegade Swish, LLC		04/17/2018
**Signature of Reporting Person		Date
/s/ Brandon Teague, Attorney-in-Fact for Geoffrey P. Raynor		04/17/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Grant of restricted stock units representing a contingent right to receive the equivalent number of shares of GLF common stock for no consideration that vests on November 15, 2018 (the "Award"). Such right is currently held by Scott McCarty (see note 2 below); however, the shares subject to the Award will be held by Renegade Swish, LLC ("RS") upon their issuance.
(2)	Each of Captain Q (defined below), RS and Raynor (defined below) may be deemed to be a director by deputization for purposes of Section 16 under the Securities Exchange Act of 1934 (the "Act") by virtue of the fact that Scott McCarty, an employee of RS, currently serves on the board of directors of the issuer. Each of Captain Q, RS and Raynor hereby disclaims beneficial ownership of all shares reported herein, except to the extent of any direct or indirect pecuniary interest therein.
(3)	RS is the sole manager of Captain Q, LLC ("Captain Q"), which is the holder of such 1,177,150 shares reported herein. RS is controlled and indirectly wholly owned by Geoffrey P. Raynor ("Raynor").
(4)	All shares reported herein as being owned by Captain Q are held by Captain Q in its capacity as the general partner of 5 Essex, L.P.

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