SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
CSL Sentinel Holdings, LLC

(Last) (First) (Middle)
1000 LOUISIANA STREET, SUITE 3850

(Street)
HOUSTON TX 77002

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Sentinel Energy Services Inc. [ STNL ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
01/31/2018
4. If Amendment, Date of 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
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
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 Securities Underlying Derivative Security (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: 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
Class B Ordinary Shares (1) 01/31/2018 S 37,500 (1) (1) Class A Ordinary Shares 37,500 $75 8,550,000 I See Footnote(2)
1. Name and Address of Reporting Person*
CSL Sentinel Holdings, LLC

(Last) (First) (Middle)
1000 LOUISIANA STREET, SUITE 3850

(Street)
HOUSTON TX 77002

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
Sentinel Management Holdings, LLC

(Last) (First) (Middle)
1000 LOUISIANA STREET, SUITE 3850

(Street)
HOUSTON TX 77002

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
Explanation of Responses:
1. At the time of our initial business combination, the Class B Ordinary Shares will convert into Class A Ordinary Shares on a one-for-one basis, subject to adjustment pursuant to certain anti-dilution rights. The Class B Ordinary Shares have no expiration date.
2. Sentinel Management Holdings, LLC is the record holder of the shares reported herein. CSL Sentinel Holdings, LLC is the managing member of Sentinel Management Holdings, LLC. CSL Sentinel Holdings, LLC may therefore be deemed to have voting and dispositive power over the shares held by Sentinel Management Holdings, LLC and may also be deemed to be the indirect beneficial owner of such shares. CSL Sentinel Holdings, LLC disclaims beneficial ownership of these shares in excess of its pecuniary interest therein.
/s/ Kent Jamison, authorized person for CSL Sentinel Holdings, LLC 02/02/2018
/s/ Kent Jamison, authorized person for Sentinel Management Holdings, LLC 02/02/2018
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
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