STNL / Sentinel Energy Services Inc. - SEC-arkiveringar, Årsredovisning, Fullmaktsutlåtande

Sentinel Energy Services Inc.
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DENNA SYMBOL ÄR INTE LÄNGRE AKTIV

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CIK 1709768
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Sentinel Energy Services Inc.
SEC Filings (Chronological Order)
Denna sida innehåller en komplett, kronologisk lista över SEC-arkiveringar, exklusive ägande-arkiveringar som vi tillhandahåller på andra ställen.
December 27, 2023 15-12G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number: 001-38271 SENTINEL ENERGY SERVICES INC. (Exact name of registrant as specif

November 14, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY

August 14, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 ☐ TRANSITION REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY SERVI

May 15, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY SERV

March 31, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY SERVICES INC

November 14, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY

August 12, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 ☐ TRANSITION REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY SERVI

May 23, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY SERV

May 17, 2022 NT 10-Q

SEC FILE NUMBER

SEC FILE NUMBER 001-38271 CUSIP NUMBER 81728P 105 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 15, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY SERVICES INC

March 31, 2022 NT 10-K

SEC FILE NUMBER

NT 10-K 1 ea157735-nt10ksentinel.htm NOTIFICATION OF LATE FILING SEC FILE NUMBER 1-12911 CUSIP NUMBER 387328107 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check one): ☒ Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-Q ☐ Form 10-D ☐ Form N-CEN ☐ Form N-CSR For Period Ended: December 31, 2021 ☐ Transition Report on Form 10-K ☐ Transi

November 12, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY

August 16, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 ☐ TRANSITION REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY SERVI

May 17, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY SERV

March 31, 2021 10-K

Annual Report - ANNUAL REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY SERVICES INC

February 16, 2021 SC 13G/A

Sentinel Energy Services Inc

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 Sentinel Energy Services Inc (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 50200K108 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to

January 5, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 30, 2020 Sentinel Energy Services Inc. (Exact name of registrant as specified in its charter) Delaware 001-38271 98-1370747 (State or other jurisdiction of incorporation) (Co

November 2, 2020 10-Q

Quarterly Report - QUARTERLY REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY

August 10, 2020 10-Q

Quarterly Report - QUARTERLY REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY SERVI

June 2, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 28, 2020 Sentinel Energy Services Inc. (Exact name of registrant as specified in its charter) Delaware 001-38271 98-1370747 (State or other jurisdiction of incorporation) (Commiss

May 12, 2020 NT 10-Q

- NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING SEC FILE NUMBER 001-38271 (Check one): ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: March 31, 2020 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-

May 12, 2020 10-Q

Quarterly Report - QUARTERLY REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY SERV

May 12, 2020 EX-10.1

Conversion Agreement, dated as of March 31, 2020, by and between the Company and the Sponsor.

Exhibit 10.1 CONVERSION AGREEMENT This Conversion Agreement (this “Agreement”) is made and entered into effective as of March 31, 2020 (the “Conversion Date”), by and among Sentinel Energy Services, Inc., a Delaware corporation (the “Company”), and Sentinel Management Holdings, LLC, a Delaware limited liability company (“Management Holdings”). Unless otherwise defined herein, capitalized terms in

March 16, 2020 EX-4.6

Description of Capital Stock.

Exhibit 4.6 DESCRIPTION OF CAPITAL STOCK The following description of Sentinel Energy Services Inc.’s (the “Company,” “we” or “us”) capital stock is a summary and does not purport to be complete. It is subject to and qualified in its entirety by reference to the Company’s certificate of incorporation (the “Charter”) and the Company’s bylaws (the “Bylaws”), each of which are incorporated by referen

March 16, 2020 10-K

STNL / Sentinel Energy Services Inc. 10-K - Annual Report - ANNUAL REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY SERVICES INC

February 14, 2020 SC 13G/A

STNL / Sentinel Energy Services Inc. / Governors Lane LP - AMENDMENT NO. 1 Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

February 14, 2020 SC 13G/A

STNL / Sentinel Energy Services Inc. / BlueCrest Capital Management Ltd Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Sentinel Energy Services Inc (Name of Issuer) Class A Common Stock (Title of Class of Securities) 81728P105 (CUSIP Number) December 31, 2019 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant

December 24, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 19, 2019 Sentinel Energy Services Inc. (Exact name of registrant as specified in its charter) Delaware 001-38271 98-1370747 (State or other jurisdiction of incorporation) (Co

December 12, 2019 EX-99.1

Sentinel Energy Services Inc. Announces Public Warrantholder Approval of Amendment to Warrant Agreement

Exhibit 99.1 Sentinel Energy Services Inc. Announces Public Warrantholder Approval of Amendment to Warrant Agreement Houston, TX, December 12, 2019 - Sentinel Energy Services Inc. (the “Company” or “Sentinel”) today announced that its public warrantholders approved an amendment to the warrant agreement (the “Warrant Agreement Amendment”) that governs all of the Company’s outstanding warrants at a

December 12, 2019 8-K

Entry into a Material Definitive Agreement, Material Modification to Rights of Security Holders, Financial Statements and Exhibits, Other Events, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 9, 2019 Sentinel Energy Services (Exact name of registrant as specified in its charter) Delaware 001-38271 98-1370747 (State or other jurisdiction of incorporation) (Commissi

December 12, 2019 EX-4.1

Amendment to the Warrant Agreement, dated as of December 9, 2019, between the Company and Continental Stock Transfer and Trust Company (incorporated by reference to the Company’s Current Report on Form 8-K, filed with the SEC on December 12, 2019).

EX-4.1 2 f8k1219ex4-1sentinel.htm AMENDMENT NO. 1 TO WARRANT AGREEMENT, DATED AS OF DECEMBER 9, 2019, BY AND BETWEEN THE COMPANY AND CST Exhibit 4.1 AMENDMENT NO. 1 TO WARRANT AGREEMENT THIS AMENDMENT TO THE WARRANT AGREEMENT (this “Amendment”) is made as of December 9, 2019, by and between Sentinel Energy Services Inc., a Delaware corporation (the “Company”), and Continental Stock Transfer & Trus

December 10, 2019 SC 13G/A

STNL / Sentinel Energy Services Inc. / Polar Asset Management Partners Inc. - SC 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Amendment No. 1 Under the Securities Exchange Act of 1934 Sentinel Energy Services Inc. (Name of Issuer) Class A Common Stock par value $0.0001 (Title of Class of Securities) 81728P105 (CUSIP Number) November 30, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursu

November 22, 2019 DEF 14A

STNL / Sentinel Energy Services Inc. DEF 14A - - PROXY STATEMENT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant S Filed by a Party other than the Registrant £ Check the appropriate box: £ Preliminary Proxy Statement £ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) S Definitive Proxy State

November 12, 2019 PRE 14A

STNL / Sentinel Energy Services Inc. PRE 14A - - PRELIMINARY PROXY STATEMENT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

November 12, 2019 10-Q

STNL / Sentinel Energy Services Inc. 10-Q - Quarterly Report - QUARTERLY REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY

November 8, 2019 SC 13G

STNL / Sentinel Energy Services Inc. / Polar Asset Management Partners Inc. - SC 13G Passive Investment

Polar Asset Management Partners Inc. - Schedule 13G/A - Filed by newsfilecorp.com UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Sentinel Energy Services Inc. (Name of Issuer) Class A Common Stock par value $0.0001 (Title of Class of Securities) 81728P105 (CUSIP Number) October 31, 2019 (Date of Event Which Requires Fi

November 6, 2019 EX-99.1

Sentinel Energy Services Inc. Announces Cancelation of Stockholder Meeting and Redemption of Public Shares

Exhibit 99.1 Sentinel Energy Services Inc. Announces Cancelation of Stockholder Meeting and Redemption of Public Shares HOUSTON, TX, November 6, 2019 - Sentinel Energy Services Inc. (the “Company”) (Nasdaq: STNL), an energy-focused special purpose acquisition company, today announced that its board of directors has determined to cancel its special meeting of stockholders that was scheduled for Nov

November 6, 2019 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 6, 2019 Sentinel Energy Services Inc. (Exact name of registrant as specified in its charter) Delaware 001- 38271 98-1370747 (State or other jurisdiction of incorporation) (Co

October 25, 2019 DEF 14A

STNL / Sentinel Energy Services Inc. DEF 14A - - DEFINITIVE PROXY STATEMENT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant S Filed by a Party other than the Registrant £ Check the appropriate box: £ Preliminary Proxy Statement £ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) S Definitive Proxy State

October 15, 2019 PRE 14A

STNL / Sentinel Energy Services Inc. PRE 14A - - PRELIMINARY PROXY STATEMENT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

August 9, 2019 10-Q

STNL / Sentinel Energy Services Inc. 10-Q - Quarterly Report - QUARTERLY REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY SERVI

May 10, 2019 10-Q

STNL / Sentinel Energy Services Inc. Class A Ordinary Share 10-Q Quarterly Report QUARTERLY REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY SERV

March 18, 2019 10-K

STNL / Sentinel Energy Services Inc. Class A Ordinary Share ANNUAL REPORT (Annual Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY SERVICES INC

March 6, 2019 EX-10.1

Convertible Promissory Note, dated as of March 1, 2019, issued to the Sponsor (incorporated by reference to the Company’s Current Report on Form 8-K (File no. 001-38271), filed with the SEC on March 6, 2019).

Exhibit 10.1 THIS CONVERTIBLE PROMISSORY NOTE (THIS “NOTE”) AND THE SECURITIES INTO WHICH IT MAY BE CONVERTED HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR UNDER THE SECURITIES LAWS OF ANY STATE. THESE SECURITIES ARE SUBJECT TO RESTRICTIONS ON TRANSFERABILITY AND RESALE. THIS NOTE HAS BEEN ACQUIRED FOR INVESTMENT ONLY AND MAY NOT BE SOLD, TRANSFER

March 6, 2019 8-K

Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 1, 2019 Sentinel Energy Services Inc. (Exact name of registrant as specified in its charter) Delaware 001- 38271 98-1370747 (State or other jurisdiction of incorporation) (Commi

February 14, 2019 SC 13G/A

STNL / Sentinel Energy Services Inc. / Brenham Capital Management, L.P. - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* SENTINEL ENERGY SERVICES INC. (Name of Issuer) UNITS, EACH CONSISTING OF ONE CLASS A ORDINARY SHARE, $0.0001 PAR VALUE, AND ONE-THIRD OF ONE WARRANT (Title of Class of Securities) G8062D128 (CUSIP Number) December 31, 2018 (Date of Event Which R

February 14, 2019 SC 13G

LFAC / LF Capital Acquistion Corp. / GLAZER CAPITAL, LLC Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Sentinel Energy Services Inc (Name of Issuer) Class A Ordinary Shares, $0.0001 par value (Title of Class of Securities) 50200K108 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which th

February 13, 2019 8-K

Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Other Events, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 12, 2019 Sentinel Energy Services Inc. (Exact name of registrant as specified in its charter) Delaware 001- 38271 98-1370747 (State or other jurisdiction of incorporation) (C

February 13, 2019 EX-99.1

Sentinel Energy Services and Strike Capital Mutually Agree to Terminate Transaction Agreement

Exhibit 99.1 Sentinel Energy Services and Strike Capital Mutually Agree to Terminate Transaction Agreement HOUSTON, TEXAS – February 13, 2019- Sentinel Energy Services Inc. (Nasdaq: STNL) (“Sentinel” or the “Company”) and Strike Capital, LLC (“Strike”) today announced that both parties agreed to mutually terminate their definitive transaction agreement and plan of merger. In response to current ma

February 13, 2019 EX-2.1

Termination Agreement, dated as of February 12, 2019, by and between the Company and Strike Capital, LLC.

Exhibit 2.1 TERMINATION AGREEMENT This TERMINATION AGREEMENT (this “Termination Agreement”), dated as of February 12, 2019, by and between Sentinel Energy Services Inc., a Delaware corporation (“Sentinel”) and Strike Capital, LLC, a Texas limited liability company (“Strike”), terminates that certain Transaction Agreement and Plan of Merger, dated as of October 18, 2018 (the “Transaction Agreement”

February 7, 2019 SC 13G

STNL / Sentinel Energy Services Inc. / BlueCrest Capital Management Ltd Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Sentinel Energy Services Inc (Name of Issuer) Class A Common Stock (Title of Class of Securities) 81728P1057 (CUSIP Number) 25 January 2019 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to

February 4, 2019 DEFA14A

STNL / Sentinel Energy Services Inc. Class A Ordinary Share DEFINITIVE ADDITIONAL MATERIALS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

February 4, 2019 EX-99.1

Sentinel Energy Services Announces POSTPONEMENT OF SPECIAL MEETING OF STOCKHOLDERS

Exhibit 99.1 Sentinel Energy Services Announces POSTPONEMENT OF SPECIAL MEETING OF STOCKHOLDERS HOUSTON, TX– February 4, 2019 – Sentinel Energy Services Inc. (Nasdaq: STNL) (“Sentinel” or the “Company”) today announced that it has postponed its special meeting of stockholders (the “Special Meeting”) relating to the proposed business combination (the “Business Combination”) with Strike Capital, LLC

February 4, 2019 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 4, 2019 Sentinel Energy Services Inc. (Exact name of registrant as specified in its charter) Delaware 001-38271 98-1370747 (State or other jurisdiction of incorporation) (Com

January 25, 2019 DEFA14A

STNL / Sentinel Energy Services Inc. Class A Ordinary Share DEFINITIVE ADDITIONAL MATERIALS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

January 25, 2019 EX-99.1

Sentinel Energy Services Announces Transfer of Listing to the New York Stock Exchange IN CONNECTION WITH ITS BUSINESS COMBINATION WITH STRIKE CAPITAL

Exhibit 99.1 Sentinel Energy Services Announces Transfer of Listing to the New York Stock Exchange IN CONNECTION WITH ITS BUSINESS COMBINATION WITH STRIKE CAPITAL HOUSTON, TX– January 25, 2019 – Sentinel Energy Services Inc. (Nasdaq: STNL) (“Sentinel” or the “Company”) announced today that it intends to voluntarily transfer the listing of its Class A common stock and warrants to the New York Stock

January 25, 2019 8-K

Regulation FD Disclosure, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 25, 2019 Sentinel Energy Services Inc. (Exact name of registrant as specified in its charter) Delaware 001- 38271 98-1370747 (State or other jurisdiction of incorporation) (Co

January 22, 2019 DEFA14A

STNL / Sentinel Energy Services Inc. Class A Ordinary Share DEFINITIVE ADDITIONAL MATERIALS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

January 22, 2019 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 22, 2019 SENTINEL ENERGY SERVICES INC. (Exact name of registrant as specified in its charter) Delaware 001-38271 98-1370747 (State or other jurisdiction of incorporation) (Com

January 22, 2019 EX-99.2

SENTINEL ENERGY SERVICES ANNOUNCES SPECIAL MEETING DATE TO APPROVE PROPOSED BUSINESS COMBINATION WITH STRIKE CAPITAL Special meeting to be held on February 5, 2019

Exhibit 99.2 SENTINEL ENERGY SERVICES ANNOUNCES SPECIAL MEETING DATE TO APPROVE PROPOSED BUSINESS COMBINATION WITH STRIKE CAPITAL Special meeting to be held on February 5, 2019 HOUSTON, TX, January 22, 2019 – Sentinel Energy Services Inc. (Nasdaq: STNL) (the “Company” or “Sentinel”) today announced that the special meeting (the “Special Meeting”) to approve the proposed business combination (the “

January 22, 2019 EX-99.1

2 Disclaimer This Investor Presentation (this “Presentation”) is being provided for informational purposes only and does not constitute an offer to sell, a solicitation of an offer to buy, or a recommendation to purchase any equity, debt or other fin

Exhibit 99.1 1 2 Disclaimer This Investor Presentation (this “Presentation”) is being provided for informational purposes only and does not constitute an offer to sell, a solicitation of an offer to buy, or a recommendation to purchase any equity, debt or other financial instruments of Strike Capital, LLC (the “Company”) or Sentinel Energy Services Inc . (“SES”) or any of their affiliates’ securit

January 18, 2019 DEFM14A

STNL / Sentinel Energy Services Inc. Class A Ordinary Share DEFM14A

DEFM14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

January 11, 2019 POS AM

STNL / Sentinel Energy Services Inc. Class A Ordinary Share POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-4

POS AM 1 posam2019a1sentinel.htm POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-4 As filed with the Securities and Exchange Commission on January 11, 2019 Registration No. 333-228366 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Post-Effective Amendment No. 1 to FORM S-4 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 SENTINEL ENERGY SERVICES INC. (Exact name of registr

January 8, 2019 DEFA14A

STNL / Sentinel Energy Services Inc. Class A Ordinary Share SOLICITING MATERIAL PURSUANT TO 240.14A-12

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

January 8, 2019 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

8-K 1 f8k010819sentinelenergy.htm CURRENT REPORT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 8, 2019 SENTINEL ENERGY SERVICES INC. (Exact name of registrant as specified in its charter) Delaware 001-38271 98-1370747 (St

January 8, 2019 EX-99.1

2 Disclaimer This Investor Presentation (this “Presentation”) is being provided to a limited number of persons and is for informational purposes only and does not constitute an offer to sell, a solicitation of an offer to buy, or a recommendation to

Exhibit 99.1 1 2 Disclaimer This Investor Presentation (this “Presentation”) is being provided to a limited number of persons and is for informational purposes only and does not constitute an offer to sell, a solicitation of an offer to buy, or a recommendation to purchase any equity, debt or other financial instruments of Strike Capital, LLC (the “Company”) or Sentinel Energy Services Inc . (“SES

January 7, 2019 PRER14A

STNL / Sentinel Energy Services Inc. Class A Ordinary Share PRER14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Amendment No. 1) Information Required in Proxy Statement Schedule 14A Information Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Con

December 28, 2018 EX-3.2

Bylaws (incorporated by reference to the Company’s Current Report on Form 8-K (File no. 333-38271), filed with the SEC on December 28, 2018).

EX-3.2 3 f8k12b122818ex3-2sentinel.htm BYLAWS OF SENTINEL ENERGY SERVICES INC Exhibit 3.2 BYLAWS OF SENTINEL ENERGY SERVICES INC. Adopted December 28, 2018 Article 1 Stockholders 1.1 Place of Meetings. Meetings of Sentinel Energy Services Inc., a Delaware corporation (the “Corporation”), shall be held at the place, either within or without the State of Delaware, as may be designated by the Board o

December 28, 2018 8-K12B

STNL / Sentinel Energy Services Inc. Class A Ordinary Share CURRENT REPORT

8-K12B 1 f8k12b122818sentinel.htm CURRENT REPORT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 28, 2018 SENTINEL ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38271 98-1370747

December 28, 2018 EX-4.3

Specimen Warrant Certificate (incorporated by reference to the Company’s Current Report on Form 8-K (File no. 333-38271), filed with the SEC on December 28, 2018).

Exhibit 4.3 [Form of Warrant Certificate] [FACE] Number Warrants THIS WARRANT SHALL BE VOID IF NOT EXERCISED PRIOR TO THE EXPIRATION OF THE EXERCISE PERIOD PROVIDED FOR IN THE WARRANT AGREEMENT DESCRIBED BELOW SENTINEL ENERGY SERVICES INC. Incorporated Under the Laws of the State of Delaware CUSIP 81728P 113 Warrant Certificate This Warrant Certificate certifies that , or its registered assigns, i

December 28, 2018 EX-3.1

Certificate of Incorporation (incorporated by reference to the Company’s Current Report on Form 8-K (File no. 333-38271), filed with the SEC on December 28, 2018).

Exhibit 3.1 CERTIFICATE OF INCORPORATION OF Sentinel energy Services Inc. December 28, 2018 Article I. NAME The name of the corporation is Sentinel Energy Services Inc. (the “Corporation”). Article II. PURPOSE The purpose of the Corporation is to engage in any lawful act or activity for which corporations may be organized under the Delaware General Corporation Law (the “DGCL”). In addition to the

December 28, 2018 EX-4.1

Specimen Unit Certificate (incorporated by reference to the Company’s Current Report on Form 8-K (File no. 333-38271), filed with the SEC on December 28, 2018).

EX-4.1 4 f8k12b122818ex4-1sentinel.htm FORM OF SPECIMEN UNIT CERTIFICATE OF SENTINEL DELAWARE Exhibit 4.1 NUMBER UNITS U- SEE REVERSE FOR CERTAIN DEFINITIONS CUSIP 81728P 204 SENTINEL ENERGY SERVICES INC. UNITS CONSISTING OF ONE SHARE OF CLASS A COMMON STOCK AND ONE-THIRD OF ONE WARRANT TO PURCHASE ONE SHARE OF CLASS A COMMON STOCK THIS CERTIFIES THAT is the owner of Units. Each Unit (“Unit”) cons

December 11, 2018 424B3

DOMESTICATION IN DELAWARE Proxy Statement for Extraordinary General Meeting Prospectus for 15,620,526 Units, 18,879,474 Shares of Class A Common Stock, 8,625,000 Shares of Class B Common Stock, and 6,293,154 Warrants to Purchase Shares of Class A Com

424B3 1 f424b3113018sentinel.htm PROSPECTUS Filed Pursuant to Rule 424(b)(3) Registration No. 333-228366 DOMESTICATION IN DELAWARE Proxy Statement for Extraordinary General Meeting Prospectus for 15,620,526 Units, 18,879,474 Shares of Class A Common Stock, 8,625,000 Shares of Class B Common Stock, and 6,293,154 Warrants to Purchase Shares of Class A Common Stock The board of directors of Sentinel

December 4, 2018 DEFA14A

STNL / Sentinel Energy Services Inc. Class A Ordinary Share SOLICITING MATERIALS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Definitive Proxy State

December 4, 2018 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

8-K 1 f8k120418sentinel.htm CURRENT REPORT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 4, 2018 SENTINEL ENERGY SERVICES INC. (Exact name of registrant as specified in its charter) Cayman Islands 001-38271 98-1370747 (S

December 4, 2018 EX-99.1

1 2018 Analyst Day 2 Disclaimer This Investor Presentation (this “Presentation”) is being provided to a limited number of persons and is for informational purposes only and does not constitute an offer to sell, a solicitation of an offer to buy, or a

Exhibit 99.1 1 2018 Analyst Day 2 Disclaimer This Investor Presentation (this “Presentation”) is being provided to a limited number of persons and is for informational purposes only and does not constitute an offer to sell, a solicitation of an offer to buy, or a recommendation to purchase any equity, debt or other financial instruments of Strike Capital, LLC (the “Company”) or Sentinel Energy Ser

December 4, 2018 CORRESP

STNL / Sentinel Energy Services Inc. Class A Ordinary Share CORRESP

Sentinel Energy Services Inc. 700 Louisiana Street, Suite 2700 Houston, Texas 77002 December 4, 2018 VIA EDGAR Katherine Bagley Staff Attorney Office of Consumer Products U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E., Mail Stop 3561 Washington, D.C. 20549 Re: Sentinel Energy Services Inc. Registration Statement on Form S-4 Filed November 29, 2018 File N

November 30, 2018 CORRESP

STNL / Sentinel Energy Services Inc. Class A Ordinary Share CORRESP

Sentinel Energy Services Inc. 700 Louisiana Street, Suite 2700 Houston, Texas 77002 November 30, 2018 VIA EDGAR Katherine Bagley Staff Attorney Office of Consumer Products U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Re: Sentinel Energy Services Inc. Registration Statement on Form S-4 Filed November 29, 2018 File No. 333-228366 D

November 29, 2018 EX-4.5

Specimen Class A Common Stock Certificate (incorporated by reference to Exhibit 4.5 filed with Amendment No. 1 to the Company’s Registration Statement on Form S-4 (File no. 333-228366), filed with the SEC on November 29, 2018).

Exhibit 4.5 NUMBER C- SEE REVERSE FOR CERTAIN DEFINITIONS SHARES CUSIP 81728P 105 SENTINEL ENERGY SERVICES INC. INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE COMMON STOCK This Certifies that is the owner of fully paid and non-assessable shares of common stock of the par of the par value of $0.0001 each of SENTINEL ENERGY SERVICES INC., a Delaware corporation (the “Company”), transferable on

November 29, 2018 EX-99.1

Form of Proxy Card for Sentinel Energy Services Inc. Extraordinary General Meeting.

Exhibit 99.1

November 29, 2018 S-4/A

STNL / Sentinel Energy Services Inc. Class A Ordinary Share AMENDMENT NO. 1 TO FORM S-4

As filed with the United States Securities and Exchange Commission on November 29, 2018 Registration No.

November 29, 2018 CORRESP

STNL / Sentinel Energy Services Inc. Class A Ordinary Share CORRESP

Elliott M. Smith Partner (212) 294-6787 [email protected] November 29, 2018 VIA EDGAR AND E-MAIL Katherine Bagley Staff Attorney Office of Consumer Products U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Re: Sentinel Energy Services Inc. Registration Statement on Form S-4 Filed November 14, 2018 File No. 333-228366 Dear Ms. Bagle

November 26, 2018 PREM14A

STNL / Sentinel Energy Services Inc. Class A Ordinary Share PREM14A

PREM14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

November 14, 2018 S-4

STNL / Sentinel Energy Services Inc. Class A Ordinary Share REGISTRATION STATEMENT

As filed with the United States Securities and Exchange Commission on November 13, 2018 Registration No.

November 9, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

8-K 1 f8k110518sentinelenergy.htm CURRENT REPORT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 5, 2018 SENTINEL ENERGY SERVICES INC. (Exact name of registrant as specified in its charter) Cayman Islands 001-38271 98-1370

November 8, 2018 10-Q

STNL / Sentinel Energy Services Inc. Class A Ordinary Share QUARTERLY REPORT (Quarterly Report)

10-Q 1 f10q0918sentinelenergy.htm QUARTERLY REPORT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2018 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to

November 2, 2018 SC 13G

STNL / Sentinel Energy Services Inc. / Governors Lane LP - SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Sentinel Energy Services Inc.

October 19, 2018 EX-10.1

Subscription Agreement, dated as of October 18, 2018, by and between the Company and CSL Energy Opportunities Fund III, L.P

Exhibit 10.1 SUBSCRIPTION AGREEMENT This SUBSCRIPTION AGREEMENT (this “Subscription Agreement”) is entered into on October 18, 2018, by and between Sentinel Energy Services Inc., a Cayman Islands exempted company (which, as described below, shall be domesticated as a Delaware corporation prior to the closing of the Transaction (as defined herein) and in connection therewith change its name to Stri

October 19, 2018 EX-99.2

2 Disclaimer This confidential Investor Presentation (this “Presentation”) is being provided to a limited number of persons and is for inf orm ational purposes only and does not constitute an offer to sell, a solicitation of an offer to buy, or a rec

Exhibit 99.2 1 2 Disclaimer This confidential Investor Presentation (this “Presentation”) is being provided to a limited number of persons and is for inf orm ational purposes only and does not constitute an offer to sell, a solicitation of an offer to buy, or a recommendation to purchase any equity, debt or other financial instruments of Strike Capital, LLC (the “Company”) or Sentinel En ergy Serv

October 19, 2018 EX-2.1

Transaction Agreement, dated as of October 18, 2018, by and among the Company, OEP Secondary Fund (Strike), LLC, One Equity Partners Secondary Fund, L.P., Strike Capital, LLC, the other equity holders of Strike Capital, LLC party thereto, OEP-Strike Seller Representative, LLC and SES Blocker Merger Sub, LLC.

Exhibit 2.1 Execution Version TRANSACTION agreement and plan of merger by and among OEP SECONDARY FUND (STRIKE), LLC, ONE EQUITY PARTNERS SECONDARY FUND, L.P., strike capital, llc, the members of strike capital, llc, OEP-Strike Seller Representative, LLC, SES Blocker merger sub, llc and SENTINEL ENERGY SERVICES INC. Dated as of October 18, 2018 Table of Contents Page ARTICLE I Definitions 3 ARTICL

October 19, 2018 EX-10.3

Purchase and Contribution Agreement, dated as of October 18, 2018, by and among the Company, Invacor Pipeline and Process Solutions, LLC, CSL Energy Holding III Corp, LLC, and Strike, LLC.

Exhibit 10.3 PURCHASE AND CONTRIBUTION AGREEMENT by and among INVACOR PIPELINE AND PROCESS SOLUTIONS, LLC, CSL ENERGY HOLDING III CORP, LLC, SENTINEL ENERGY SERVICES INC., and STRIKE, LLC October 18, 2018 TABLE OF CONTENTS Article I DEFINITIONS 1.1 Certain Definitions 1 1.2 Construction 2 Article II CONTRIBUTION AND ACQUISITION; CLOSING 2.1 Transfer of Pipelogic Membership Interests to Buyer 2 2.2

October 19, 2018 EX-99.1

Sentinel Energy Services Inc. and Strike Capital LLC Enter Business Combination to Form Publicly Traded Strike Inc.

Exhibit 99.1 Sentinel Energy Services Inc. and Strike Capital LLC Enter Business Combination to Form Publicly Traded Strike Inc. ● Strike Inc. represents the largest, pure-play pipeline and facilities infrastructure and integrity services provider across U.S. onshore energy markets and transmission corridors ● Following the business combination, Sentinel will be led by the existing dynamic managem

October 19, 2018 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 18, 2018 SENTINEL ENERGY SERVICES INC. (Exact name of registrant as specified in its charter) Cayman Islands 001-38271 98-1370747 (State or other jurisdiction of incorporation

October 19, 2018 EX-99.3

5

Exhibit 99.3 CALL PARTICIPANTS Andrew Gould, Chairman, Sentinel Energy Services Inc. Krishna Shivram, Chief Executive Officer, Sentinel Energy Services Inc. Steve Pate, Chief Executive Officer, Strike LLC Robert Jessen, Chief Financial Officer, Strike LLC Operator: Good morning and welcome to the discussion of Sentinel Energy Services Inc’s acquisition of Strike LLC Agreement. My name is XXXX, and

October 19, 2018 EX-10.4

Voting and Support Agreement, dated as of October 18, 2018, by and among the Company, Strike Capital, LLC, Sentinel Management Holdings LLC, and the other parties thereto.

Exhibit 10.4 VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT (this “Agreement”) is entered into as of October 18, 2018, by and among Strike Capital, LLC, a Texas limited liability company (“Strike”), Sentinel Management Holdings, LLC, a Delaware limited liability company (“Sponsor”), and the shareholders of Buyer (as defined below) set forth on Schedule I hereto (such individuals to

October 19, 2018 EX-10.2

Subscription Agreement, dated as of October 18, 2018, by and among the Company and certain funds and accounts managed by Fidelity Management & Research Company party thereto.

Exhibit 10.2 SUBSCRIPTION AGREEMENT This SUBSCRIPTION AGREEMENT (this “Subscription Agreement”) is entered into on October 18, 2018, by and between Sentinel Energy Services Inc., a Cayman Islands exempted company (which, as described below, shall be domesticated as a Delaware corporation prior to the closing of the Transaction (as defined herein) and in connection therewith change its name to Stri

October 19, 2018 EX-10.1

Subscription Agreement, dated as of October 18, 2018, by and between the Company and CSL Energy Opportunities Fund III, L.P

EX-10.1 3 f8k1018ex10-1sentinelenergy.htm SUBSCRIPTION AGREEMENT, DATED AS OF OCTOBER 18, 2018, BY AND BETWEEN THE COMPANY AND CSL ENERGY OPPORTUNITIES FUND III, L.P. Exhibit 10.1 SUBSCRIPTION AGREEMENT This SUBSCRIPTION AGREEMENT (this “Subscription Agreement”) is entered into on October 18, 2018, by and between Sentinel Energy Services Inc., a Cayman Islands exempted company (which, as described

October 19, 2018 DEFA14A

STNL / Sentinel Energy Services Inc. Class A Ordinary Share CURRENT REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 18, 2018 SENTINEL ENERGY SERVICES INC. (Exact name of registrant as specified in its charter) Cayman Islands 001-38271 98-1370747 (State or other jurisdiction of incorporation

October 19, 2018 EX-10.3

Purchase and Contribution Agreement, dated as of October 18, 2018, by and among the Company, Invacor Pipeline and Process Solutions, LLC, CSL Energy Holding III Corp, LLC, and Strike, LLC.

Exhibit 10.3 PURCHASE AND CONTRIBUTION AGREEMENT by and among INVACOR PIPELINE AND PROCESS SOLUTIONS, LLC, CSL ENERGY HOLDING III CORP, LLC, SENTINEL ENERGY SERVICES INC., and STRIKE, LLC October 18, 2018 TABLE OF CONTENTS Article I DEFINITIONS 1.1 Certain Definitions 1 1.2 Construction 2 Article II CONTRIBUTION AND ACQUISITION; CLOSING 2.1 Transfer of Pipelogic Membership Interests to Buyer 2 2.2

October 19, 2018 EX-10.4

Voting and Support Agreement, dated as of October 18, 2018, by and among the Company, Strike Capital, LLC, Sentinel Management Holdings LLC, and the other parties thereto.

EX-10.4 6 f8k1018ex10-4sentinelenergy.htm VOTING AND SUPPORT AGREEMENT, DATED AS OF OCTOBER 18, 2018, BY AND AMONG THE COMPANY, STRIKE CAPITAL, LLC, SENTINEL MANAGEMENT HOLDINGS LLC, AND THE OTHER PARTIES THERETO Exhibit 10.4 VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT (this “Agreement”) is entered into as of October 18, 2018, by and among Strike Capital, LLC, a Texas limited li

October 19, 2018 EX-2.1

Transaction Agreement, dated as of October 18, 2018, by and among the Company, OEP Secondary Fund (Strike), LLC, One Equity Partners Secondary Fund, L.P., Strike Capital, LLC, the other equity holders of Strike Capital, LLC party thereto, OEP-Strike Seller Representative, LLC and SES Blocker Merger Sub, LLC.

Exhibit 2.1 Execution Version TRANSACTION agreement and plan of merger by and among OEP SECONDARY FUND (STRIKE), LLC, ONE EQUITY PARTNERS SECONDARY FUND, L.P., strike capital, llc, the members of strike capital, llc, OEP-Strike Seller Representative, LLC, SES Blocker merger sub, llc and SENTINEL ENERGY SERVICES INC. Dated as of October 18, 2018 Table of Contents Page ARTICLE I Definitions 3 ARTICL

October 19, 2018 EX-99.3

Conference Call Script.

Exhibit 99.3 CALL PARTICIPANTS Andrew Gould, Chairman, Sentinel Energy Services Inc. Krishna Shivram, Chief Executive Officer, Sentinel Energy Services Inc. Steve Pate, Chief Executive Officer, Strike LLC Robert Jessen, Chief Financial Officer, Strike LLC Operator: Good morning and welcome to the discussion of Sentinel Energy Services Inc’s acquisition of Strike LLC Agreement. My name is XXXX, and

October 19, 2018 EX-99.2

Investor Presentation.

Exhibit 99.2 1 2 Disclaimer This confidential Investor Presentation (this “Presentation”) is being provided to a limited number of persons and is for inf orm ational purposes only and does not constitute an offer to sell, a solicitation of an offer to buy, or a recommendation to purchase any equity, debt or other financial instruments of Strike Capital, LLC (the “Company”) or Sentinel En ergy Serv

October 19, 2018 EX-99.1

Press Release.

Exhibit 99.1 Sentinel Energy Services Inc. and Strike Capital LLC Enter Business Combination to Form Publicly Traded Strike Inc. ● Strike Inc. represents the largest, pure-play pipeline and facilities infrastructure and integrity services provider across U.S. onshore energy markets and transmission corridors ● Following the business combination, Sentinel will be led by the existing dynamic managem

October 19, 2018 EX-10.2

Subscription Agreement, dated as of October 18, 2018, by and among the Company and certain funds and accounts managed by Fidelity Management & Research Company party thereto.

EX-10.2 4 f8k1018ex10-2sentinelenergy.htm SUBSCRIPTION AGREEMENT, DATED AS OF OCTOBER 18, 2018, BY AND AMONG THE COMPANY AND CERTAIN FUNDS AND ACCOUNTS MANAGED BY FIDELITY MANAGEMENT & RESEARCH COMPANY PARTY THERETO Exhibit 10.2 SUBSCRIPTION AGREEMENT This SUBSCRIPTION AGREEMENT (this “Subscription Agreement”) is entered into on October 18, 2018, by and between Sentinel Energy Services Inc., a Cay

August 31, 2018 10-Q/A

STNL / Sentinel Energy Services Inc. Class A Ordinary Share AMENDMENT NO. 1 TO FORM 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q/A ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2018 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY SER

August 31, 2018 EX-3.1

Amended and Restated Memorandum and Articles of Association.

Exhibit 3.1 THE COMPANIES LAW (AS AMENDED) COMPANY LIMITED BY SHARES AMENDED AND RESTATED MEMORANDUM AND ARTICLES OF ASSOCIATION OF SENTINEL ENERGY SERVICES INC. (ADOPTED BY SPECIAL RESOLUTION DATED NOVEMBER 2, 2017) THE COMPANIES LAW (AS AMENDED) COMPANY LIMITED BY SHARES AMENDED AND RESTATED MEMORANDUM AND ARTICLES OF ASSOCIATION OF SENTINEL ENERGY SERVICES INC. (ADOPTED BY SPECIAL RESOLUTION DA

August 13, 2018 10-Q

STNL / Sentinel Energy Services Inc. Class A Ordinary Share QUARTERLY REPORT (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2018 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY SERVI

May 14, 2018 10-Q

STNL / Sentinel Energy Services Inc. Class A Ordinary Share QUARTERLY REPORT (Quarterly Report)

10-Q 1 f10q0318sentinelenergy.htm QUARTERLY REPORT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2018 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Com

March 27, 2018 10-K

STNL / Sentinel Energy Services Inc. Class A Ordinary Share ANNUAL REPORT (Annual Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2017 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-38271 SENTINEL ENERGY SERVICES INC

February 14, 2018 SC 13G/A

STNL / Sentinel Energy Services Inc. / Brenham Capital Management, L.P. - BRENHAM CAPITAL MANAGEMENT, L.P. Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* SENTINEL ENERGY SERVICES INC. (Name of Issuer) Units, each consisting of one Class A ordinary share, $0.0001 par value, and one-third of one warrant (Title of Class of Securities) G8062D128 (CUSIP Number) December 31, 2017 (Date of Event which Requires F

February 5, 2018 EX-10.1

Letter Agreement, dated January 31, 2018, by and between the Company and Jon A. Marshall (incorporated by reference to the Company’s Current Report on Form 8-K (File no. 001-38271), filed with the SEC on February 5, 2018).

EX-10.1 2 f8k013118ex10-1sentinel.htm LETTER AGREEMENT, DATED JANUARY 31, 2018, BETWEEN THE COMPANY AND JON A. MARSHALL Exhibit 10.1 January 31, 2018 Sentinel Energy Services Inc. 1000 Louisiana Street, Suite 3850 Houston, TX 77002 Re: Appointment to the Board of Directors of Sentinel Energy Services Inc. Ladies and Gentlemen: This letter (this “Letter Agreement”) is being delivered to you in acco

February 5, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 31, 2018 Sentinel Energy Services Inc. (Exact name of registrant as specified in its charter) Cayman Islands 001-38271 98-1370747 (State or other jurisdiction of (Commission F

February 5, 2018 EX-10.2

Indemnification Agreement, dated January 31, 2018, by and between the Company and Jon A. Marshall (incorporated by reference to the Company’s Current Report on Form 8-K (File no. 001-38271), filed with the SEC on February 5, 2018).

EX-10.2 3 f8k013118ex10-2sentinel.htm INDEMNIFICATION AGREEMENT , DATED JANUARY 31, 2018, BETWEEN THE COMPANY AND JON A. MARSHALL Exhibit 10.2 INDEMNIFICATION AGREEMENT THIS INDEMNIFICATION AGREEMENT (this “Agreement”) is made as of January 31, 2018, by and between SENTINEL ENERGY SERVICES INC., a Cayman Islands exempted company (the “Company”), and Jon A. Marshall (“Indemnitee”). RECITALS WHEREAS

January 25, 2018 EX-99.1

JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(k)

Exhibit 99.1 JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(k) The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements. The undersigned ackn

January 25, 2018 SC 13G

STNL / Sentinel Energy Services Inc. / Csl Sentinel Holdings, Llc - SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* SENTINEL ENERGY SERVICES INC. (Name of Issuer) Class A Ordinary Shares, par value $0.0001 per share (Title of Class of Securities) G8062D 102 (CUSIP Number) December 31, 2017 (Date of Event Which Requires Filing of this Statement) Check the appropriate bo

January 4, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

8-K 1 f8k122917sentinelenergy.htm CURRENT REPORT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 1, 2018 Sentinel Energy Services Inc. (Exact name of registrant as specified in its charter) Cayman Islands 001-38271 98-13707

December 21, 2017 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 21, 2017 Sentinel Energy Services Inc. (Exact name of registrant as specified in its charter) Cayman Islands 001-38271 98-1370747 (State or other jurisdiction of (Commission

December 21, 2017 EX-99.1

Sentinel Energy Services Inc. Announces the Separate Trading of its Class A Ordinary Shares and Warrants, Commencing December 22, 2017

EX-99.1 2 f8k122117ex99-1sentinel.htm PRESS RELEASE DATED DECEMBER 21, 2017 Exhibit 99.1 Sentinel Energy Services Inc. Announces the Separate Trading of its Class A Ordinary Shares and Warrants, Commencing December 22, 2017 Houston, TX, December 21, 2017 - Sentinel Energy Services Inc. (the “Company”) announced that, commencing December 22, 2017, holders of the units sold in the Company’s initial

November 16, 2017 8-K

Financial Statements and Exhibits, Other Events

8-K 1 f8k110917sentinelenergy.htm CURRENT REPORT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 9, 2017 Sentinel Energy Services Inc. (Exact name of registrant as specified in its charter) Cayman Islands 001-38271 98-1370

November 16, 2017 EX-99.1

Sentinel Energy Services Inc. PRO FORMA BALANCE SHEET

EX-99.1 2 f8k110917ex99-1sentinel.htm PRO FORMA BALANCE SHEET AS OF NOVEMBER 7, 2017. Exhibit 99.1 Sentinel Energy Services Inc. PRO FORMA BALANCE SHEET As of November 7, 2017 Pro Forma Adjustments As Adjusted ASSETS: (unaudited) (unaudited) Current assets: Current assets - Cash $ 1,854,264 $ - $ 1,854,264 Cash held in Trust Account 300,000,000 45,000,000 a 345,000,000 900,000 b (900,000 ) c Total

November 14, 2017 SC 13G

STNL / Sentinel Energy Services Inc. / Brenham Capital Management, L.P. Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 SENTINEL ENERGY SERVICES INC. (Name of Issuer) Units, each consisting of one Class A ordinary share, $0.0001 par value, and one-third of one warrant (Title of Class of Securities) G8062D128 (CUSIP Number) November 03, 2017 (Date of Event which Requires Filing of this State

November 14, 2017 EX-99.1

INDEX TO FINANCIAL STATEMENT

Exhibit 99.1 INDEX TO FINANCIAL STATEMENT Page Report of Independent Registered Public Accounting Firm F-2 Balance Sheet as of November 7, 2017 F-3 Notes to Balance Sheet F-4 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Board of Directors and Shareholders of Sentinel Energy Services Inc. We have audited the accompanying balance sheet of Sentinel Energy Services Inc. (the ??Compan

November 14, 2017 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 7, 2017 Sentinel Energy Services Inc. (Exact name of registrant as specified in its charter) Cayman Islands 001-38271 98-1370747 (State or other jurisdiction (Commission File

November 13, 2017 SC 13G

STNL / Sentinel Energy Services Inc. / Encompass Capital Advisors LLC - 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

November 7, 2017 EX-10.4

Administrative Services Agreement, dated November 2, 2017, between the Company and the Sponsor.

Exhibit 10.4 SENTINEL ENERGY SERVICES INC. 1000 Louisiana Street, Suite 3850 Houston, TX 77002 November 2, 2017 Sentinel Management Holdings, LLC 1000 Louisiana Street, Suite 3850 Houston, TX 77002 Re: Administrative Services Agreement Gentlemen: This letter agreement by and between Sentinel Energy Services Inc. (the ?Company?) and Sentinel Management Holdings, LLC (?Sponsor?), dated as of the dat

November 7, 2017 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 2, 2017 Sentinel Energy Services Inc. (Exact name of registrant as specified in its charter) Cayman Islands 001-38271 98-1370747 (State or other jurisdiction (Commission File

November 7, 2017 EX-99.1

Sentinel Energy Services Inc. Announces Pricing of $300,000,000 Initial Public Offering

Exhibit 99.1 Sentinel Energy Services Inc. Announces Pricing of $300,000,000 Initial Public Offering November 02, 2017 05:18 PM Eastern Daylight Time HOUSTON-(BUSINESS WIRE)-Sentinel Energy Services Inc. (the ?Company?), led by Chairman Andrew Gould and Chief Executive Officer Krishna Shivram, today announced the pricing of its initial public offering (?IPO?) of 30,000,000 units at a price of $10.

November 7, 2017 EX-4.1

Warrant Agreement, dated November 2, 2017, between the Company and Continental Stock Transfer & Trust Company (incorporated by reference to the Company’s Current Report on Form 8-K, filed with the SEC on November 7, 2017).

Exhibit 4.1 WARRANT AGREEMENT between SENTINEL ENERGY SERVICES INC. and CONTINENTAL STOCK TRANSFER & TRUST COMPANY Dated as of November 2, 2017 THIS WARRANT AGREEMENT (this ?Agreement?), dated as of November 2, 2017, is by and between Sentinel Energy Services Inc., a Cayman Islands exempted company (the ?Company?), and Continental Stock Transfer & Trust Company, a New York corporation, as warrant

November 7, 2017 EX-3.1

Amended and Restated Memorandum and Articles of Association.

Exhibit 3.1 THE COMPANIES LAW (AS AMENDED) COMPANY LIMITED BY SHARES AMENDED AND RESTATED MEMORANDUM AND ARTICLES OF ASSOCIATION OF SENTINEL ENERGY SERVICES INC. (ADOPTED BY SPECIAL RESOLUTION DATED NOVEMBER 2, 2017) THE COMPANIES LAW (AS AMENDED) COMPANY LIMITED BY SHARES AMENDED AND RESTATED MEMORANDUM AND ARTICLES OF ASSOCIATION OF SENTINEL ENERGY SERVICES INC. (ADOPTED BY SPECIAL RESOLUTION DA

November 7, 2017 EX-10.1

Letter Agreement, dated November 2, 2017, by and between the Company, the Sponsor, Krishna Shivram, Andrew F. J. Gould, Charles S. Leykum, Vivek Raj, Gerald Cimador, Kent Jamison and Marc Zenner (incorporated by reference to the Company’s Current Report on Form 8-K (File no. 001-38271), filed with the SEC on November 7, 2017).

Exhibit 10.1 November 2, 2017 Sentinel Energy Services Inc. 1000 Louisiana Street, Suite 3850 Houston, TX 77002 Re: Initial Public Offering Ladies and Gentlemen: This letter (this ?Letter Agreement?) is being delivered to you in accordance with the Underwriting Agreement (the ?Underwriting Agreement?) entered into by and among Sentinel Energy Services Inc., a Cayman Islands exempted company (the ?

November 7, 2017 EX-10.5

Private Placement Warrant Purchase Agreement among Sentinel Energy Services Inc. and Sentinel Management Holdings, LLC , dated as of November 2, 2017 (Incorporated by reference to Exhibit 10.5 to Sentinel’s Current Report on Form 8-K (File No. 001-38271), filed with the SEC on November 7, 2017).

Exhibit 10.5 PRIVATE PLACEMENT WARRANTS PURCHASE AGREEMENT THIS PRIVATE PLACEMENT WARRANTS PURCHASE AGREEMENT, dated as of November 2, 2017 (as it may from time to time be amended, this ?Agreement?), is entered into by and between Sentinel Energy Services Inc., a Cayman Islands exempted company (the ?Company?), and Sentinel Management Holdings, LLC, a Delaware limited liability company (the ?Purch

November 7, 2017 EX-10.6

Option Agreement among Sentinel Energy Services Inc., CSL Energy Opportunities Fund III, L.P. and CSL Energy Holdings III, Corp, LLC, dated as of November 2, 2017 (Incorporated by reference to Exhibit 10.6 to Sentinel’s Current Report on Form 8-K (File No. 001-38271), filed with the SEC on November 7, 2017).

Exhibit 10.6 OPTION AGREEMENT This Option Agreement (this ?Agreement?) is entered into as of November 2, 2017, between Sentinel Energy Services Inc., a Cayman Islands exempted company (the ?Company?), and CSL Energy Opportunities Fund III, L.P. and CSL Energy Holdings III, Corp, LLC (the ?Option Holders?). Recitals WHEREAS, the Company was formed for the purpose of effecting a merger, amalgamation

November 7, 2017 EX-10.3

Registration Rights Agreement, dated November 2, 2017, between the Company, the Sponsor and certain other security holders (incorporated by reference to the Company’s Current Report on Form 8-K (File no. 001-38271), filed with the SEC on November 7, 2017).

Exhibit 10.3 REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT (this ?Agreement?), dated as of November 2, 2017, is made and entered into by and among Sentinel Energy Services Inc., a Cayman Islands exempted company (the ?Company?), Sentinel Management Holdings, LLC, a Delaware limited liability company (the ?Sponsor?), and the undersigned parties listed under Holder on the signatur

November 7, 2017 EX-10.2

Investment Management Trust Agreement between Sentinel Energy Services Inc. and Continental Stock Transfer & Trust Company, dated as of November 2, 2017 (Incorporated by reference to Exhibit 10.2 to Sentinel’s Current Report on Form 8-K (File No. 001-38271), filed with the SEC on November 7, 2017).

Exhibit 10.2 INVESTMENT MANAGEMENT TRUST AGREEMENT This Investment Management Trust Agreement (this ?Agreement?) is made effective as of November 2, 2017 by and between Sentinel Energy Services Inc., a Cayman Islands exempted company (the ?Company?), and Continental Stock Transfer & Trust Company, a New York corporation (the ?Trustee?). WHEREAS, the Company?s registration statement on Form S-1, No

November 6, 2017 424B4

$300,000,000 Sentinel Energy Services Inc. 30,000,000 Units

PROSPECTUS Filed Pursuant to Rule 424(b)(4) Registration No. 333-220584 $300,000,000 Sentinel Energy Services Inc. 30,000,000 Units Sentinel Energy Services Inc. is a newly incorporated blank check company formed for the purpose of effecting a merger, amalgamation, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses,

November 2, 2017 S-1/A

As filed with the U.S. Securities and Exchange Commission on November 1, 2017

As filed with the U.S. Securities and Exchange Commission on November 1, 2017 Registration No. 333-220584 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 AMENDMENT NO. 3 to FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Sentinel Energy Services Inc. (Exact Name of Registrant as Specified in its Charter) Cayman Islands 6770 98-1370747 (State or other jurisd

October 31, 2017 CORRESP

* * * [signature page follows]

October 31, 2017 VIA EDGAR Mara L. Ransom Assistant Director Office of Consumer Products U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Re: Sentinel Energy Services Inc. Registration Statement on Form S-1 Filed September 22, 2017, as amended File No. 333-220584 Dear Ms. Ransom: Pursuant to Rule 461 of the General Rules and Regulati

October 31, 2017 CORRESP

Sentinel Energy Services Inc. 1000 Louisiana Street, Suite 3850 Houston, Texas, 77002

Sentinel Energy Services Inc. 1000 Louisiana Street, Suite 3850 Houston, Texas, 77002 October 31, 2017 VIA EMAIL & EDGAR Division of Corporation Finance Securities and Exchange Commission 100 F Street, NE Washington, DC 20549 Attention: Mara L. Ransom, Assistant Director Office of Consumer Products Re: Sentinel Energy Services Inc. Form S-1 Registration Statement File No. 333-220584 Dear Ms. Ranso

October 31, 2017 8-A12B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 Sentinel Energy Services Inc. (Exact name of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 Sentinel Energy Services Inc. (Exact name of registrant as specified in its charter) Cayman Islands 98-1370747 (State of incorporation or organization) (I.R.S. Employer Identification No.) 1000 L

October 30, 2017 EX-3.2

Amended and Restated Memorandum and Articles of Association.(1)

EXHIBIT 3.2 THE COMPANIES LAW (AS AMENDED) COMPANY LIMITED BY SHARES amended and restated Memorandum and articles OF association of Sentinel Energy Services Inc. (adopted by special resolution dated [] 2017) Ref: CBD/AB/C-145972 THE COMPANIES LAW (AS AMENDED) COMPANY LIMITED BY SHARES amended and restated Memorandum and articles OF association of Sentinel Energy Services Inc. (adopted by special r

October 30, 2017 S-1/A

As filed with the U.S. Securities and Exchange Commission on October 30, 2017

As filed with the U.S. Securities and Exchange Commission on October 30, 2017 Registration No. 333-220584 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 AMENDMENT NO. 2 to FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Sentinel Energy Services Inc. (Exact Name of Registrant as Specified in its Charter) Cayman Islands 6770 98-1370747 (State or other jurisd

October 26, 2017 S-1/A

As filed with the U.S. Securities and Exchange Commission on October 26, 2017

As filed with the U.S. Securities and Exchange Commission on October 26, 2017 Registration No. 333-220584 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 AMENDMENT NO. 1 to FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Sentinel Energy Services Inc. (Exact Name of Registrant as Specified in its Charter) Cayman Islands 6770 98-1370747 (State or other jurisd

October 26, 2017 EX-3.2

Form of Amended and Restated Memorandum and Articles of Association.*

EX-3.2 3 fs12017a1ex3-2sentinel.htm FORM OF AMENDED AND RESTATED MEMORANDUM AND ARTICLES OF ASSOCIATION. EXHIBIT 3.2 THE COMPANIES LAW (AS AMENDED) COMPANY LIMITED BY SHARES amended and restated Memorandum and articles OF association of Sentinel Energy Services Inc. (adopted by special resolution dated [] 2017) Ref: CBD/AB/C-145972 THE COMPANIES LAW (AS AMENDED) COMPANY LIMITED BY SHARES amended a

October 26, 2017 EX-99.3

Form of Nominating Committee Charter.***

EX-99.3 5 fs12017a1ex99-3sentinel.htm FORM OF NOMINATING COMMITTEE CHARTER Exhibit 99.3 SENTINEL ENERGY SERVICES INC. (the “Company”) Nominating Committee Charter (the “Charter”) The responsibilities and powers of this Nominating Committee (the “Committee”) as delegated by the Company’s Board of Directors (the “Board”) are set forth in this charter. Whenever the Committee takes an action, it shall

October 26, 2017 EX-1.1

Form of Underwriting Agreement.***

EX-1.1 2 fs12017a1ex1-1sentinel.htm FORM OF UNDERWRITING AGREEMENT Exhibit 1.1 30,000,000 Units Sentinel Energy Services Inc. FORM OF UNDERWRITING AGREEMENT [●], 2017 Citigroup Global Markets Inc. 388 Greenwich Street New York, New York 10013 Goldman Sachs & Co. LLC 200 West Street New York, New York 10282 Credit Suisse Securities (USA) LLC Eleven Madison Avenue New York, New York 10010 As Represe

October 10, 2017 CORRESP

Confidential Treatment Request by Sentinel Energy Services Inc.

FOIA Confidential Treatment Request Under Rule 83 October 9, 2017 Mara L. Ransom Assistant Director Office of Consumer Products United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549-3561 Re: Sentinel Energy Services Inc. Draft Registration Statement on Form S-1 CIK No. 0001709768 Ladies and Gentlemen: This letter is submitted on

September 22, 2017 EX-10.8

Form of Administrative Services Agreement between the Registrant and Sentinel Management Holdings, LLC.***

EXHIBIT 10.8 SENTINEL ENERGY SERVICES INC. 1000 Louisiana Street, Suite 3850 Houston, TX 77002 [?], 2017 Sentinel Management Holdings, LLC 1000 Louisiana Street, Suite 3850 Houston, TX 77002 Re: Administrative Services Agreement Gentlemen: This letter agreement by and between Sentinel Energy Services Inc. (the ?Company?) and Sentinel Management Holdings, LLC (?Sponsor?), dated as of the date hereo

September 22, 2017 EX-10.7

Form of Indemnity Agreement (incorporated by reference to the Company’s Registration Statement on Form S-1 (File no. 333-220584), filed with the SEC on September 22, 2017).

EXHIBIT 10.7 FORM OF INDEMNIFICATION AGREEMENT THIS INDEMNIFICATION AGREEMENT (this ?Agreement?) is made as of [?], 2017, by and between SENTINEL ENERGY SERVICES INC., a Cayman Islands exempted company (the ?Company?), and [?] (?Indemnitee?). RECITALS WHEREAS, highly competent persons have become more reluctant to serve publicly-held corporations as directors or officers unless they are provided w

September 22, 2017 EX-10.3

Form of Investment Management Trust Agreement between Continental Stock Transfer & Trust Company and the Registrant.***

EXHIBIT 10.3 INVESTMENT MANAGEMENT TRUST AGREEMENT This Investment Management Trust Agreement (this ?Agreement?) is made effective as of , 2017 by and between Sentinel Energy Services Inc., a Cayman Islands exempted company (the ?Company?), and Continental Stock Transfer & Trust Company, a New York corporation (the ?Trustee?). WHEREAS, the Company?s registration statements on Form S-1, No. 333-[]

September 22, 2017 EX-10.5

Amended and Restated Securities Purchase Agreement, dated June 30, 2017, between the Company and the Sponsor (incorporated by reference to the Company’s Registration Statement on Form S-1 (File no. 333-220584), filed with the SEC on September 22, 2017).

EXHIBIT 10.5 SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this ?Agreement?), effective as of June 30, 2017, is made and entered into by and between Sentinel Energy Services Inc., a Cayman Islands exempted company (the ?Company?), and Sentinel Management Holdings, LLC, a Delaware limited liability company (the ?Buyer?). RECITALS: WHEREAS, the Buyer wishes to purchase from the C

September 22, 2017 EX-4.2

Specimen Warrant Certificate.***

EXHIBIT 4.2 [Form of Warrant Certificate] [FACE] Number Warrants THIS WARRANT SHALL BE VOID IF NOT EXERCISED PRIOR TO THE EXPIRATION OF THE EXERCISE PERIOD PROVIDED FOR IN THE WARRANT AGREEMENT DESCRIBED BELOW SENTINEL ENERGY SERVICES INC. Incorporated Under the Laws of the Cayman Islands CUSIP [] Warrant Certificate This Warrant Certificate certifies that , or registered assigns, is the registere

September 22, 2017 EX-10.6

Form of Private Placement Warrants Purchase Agreement between the Registrant and Sentinel Management Holdings, LLC.***

EXHIBIT 10.6 PRIVATE PLACEMENT WARRANTS PURCHASE AGREEMENT THIS PRIVATE PLACEMENT WARRANTS PURCHASE AGREEMENT, dated as of , 2017 (as it may from time to time be amended, this ?Agreement?), is entered into by and between Sentinel Energy Services Inc., a Cayman Islands exempted company (the ?Company?), and Sentinel Management Holdings, LLC, a Delaware limited liability company (the ?Purchaser?). WH

September 22, 2017 EX-10.1

Promissory Note, dated June 12, 2017, issued to Sentinel Management Holdings, LLC.***

EXHIBIT 10.1 PROMISSORY NOTE Not to Exceed $200,000 June 12, 2017 FOR VALUE RECEIVED, the undersigned Sentinel Energy Services Inc., a Cayman Islands exempted company (?Maker? or the ?Company?), whose address is 1000 Louisiana Street, Suite 3850, Houston, TX 77002, hereby unconditionally promises to pay to the order of Sentinel Management Holdings, LLC, a Delaware limited liability company (?Payee

September 22, 2017 EX-10.4

Form of Registration Rights Agreement among the Registrant, Sentinel Management Holdings, LLC and the other parties thereto.***

EXHIBIT 10.4 REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT (this ?Agreement?), dated as of , 2017, is made and entered into by and among Sentinel Energy Services Inc., a Cayman Islands exempted company (the ?Company?), Sentinel Management Holdings, LLC, a Delaware limited liability company (the ?Sponsor?), and the undersigned parties listed under Holder on the signature page her

September 22, 2017 EX-4.3

Form of Warrant Agreement between Continental Stock Transfer & Trust Company and the Registrant.***

EXHIBIT 4.3 FORM OF WARRANT AGREEMENT between SENTINEL ENERGY SERVICES INC. and CONTINENTAL STOCK TRANSFER & TRUST COMPANY Dated as of [], 2017 THIS WARRANT AGREEMENT (this ?Agreement?), dated as of , 2017, is by and between Sentinel Energy Services Inc., a Cayman Islands exempted company (the ?Company?), and Continental Stock Transfer & Trust Company, a New York corporation, as warrant agent (the

September 22, 2017 EX-99.4

Consent of Marc Zenner.***

EXHIBIT 99.4 Consent of Director Nominee Sentinel Energy Services Inc. Pursuant to Rule 438 of Regulation C promulgated under the Securities Act of 1933, as amended (the ?Securities Act?), in connection with the Registration Statement on Form S-1 (the ?Registration Statement?) of Sentinel Energy Services Inc., the undersigned hereby consents to being named and described as a director nominee in th

September 22, 2017 EX-14

Code of Ethics (incorporated by reference to the Company’s Registration Statement on Form S-1 (File no. 333-220584), filed with the SEC on September 22, 2017).

EXHIBIT 14 CODE OF ETHICS OF SENTINEL ENERGY SERVICES INC. 1. Introduction The Board of Directors (the ?Board?) of Sentinel Energy Services Inc. has adopted this code of ethics (this ?Code?), which is applicable to all directors, officers and employees (each a ?person,? as used herein) of the Company (as defined below), to: ? promote honest and ethical conduct, including the ethical handling of ac

September 22, 2017 EX-99.2

Form of Compensation Committee Charter.***

EXHIBIT 99.2 SENTINEL ENERGY SERVICES INC. COMPENSATION COMMITTEE CHARTER The following Compensation Committee Charter (the ?Charter?) was adopted by the Board of Directors (the ?Board?) of Sentinel Energy Services Inc. (the ?Company?). 1. STATUS The Compensation Committee (the ?Committee?) is a committee of the Board. 2. PURPOSE The Committee is appointed by the Board for the primary purposes of:

September 22, 2017 EX-4.1

Specimen Unit Certificate.***

EXHIBIT 4.1 NUMBER UNITS U- SEE REVERSE FOR CERTAIN DEFINITIONS CUSIP [] SENTINEL ENERGY SERVICES INC. UNITS CONSISTING OF ONE CLASS A ORDINARY SHARE AND ONE-THIRD OF ONE WARRANT TO PURCHASE ONE CLASS A ORDINARY SHARE THIS CERTIFIES THAT is the owner of Units. Each Unit (?Unit?) consists of one (1) Class A Ordinary Share, par value $0.0001 per share (?Ordinary Share?), of Sentinel Energy Services

September 22, 2017 EX-3.2

Form of Amended and Restated Memorandum and Articles of Association.*

EXHIBIT 3.2 THE COMPANIES LAW (AS AMENDED) COMPANY LIMITED BY SHARES amended and restated Memorandum and articles OF association of Sentinel Energy Services Inc. (adopted by special resolution dated [] 2017) Ref: CBD/AB/C-145972 THE COMPANIES LAW (AS AMENDED) COMPANY LIMITED BY SHARES amended and restated Memorandum and articles OF association of Sentinel Energy Services Inc. (adopted by special r

September 22, 2017 EX-10.9

Form of Option Agreement between the Registrant and the investors listed as the purchasers on the signature page thereof.***

EXHIBIT 10.9 OPTION AGREEMENT This Option Agreement (this ?Agreement?) is entered into as of [], 2017, between Sentinel Energy Services Inc., a Cayman Islands exempted company (the ?Company?), and CSL Energy Opportunities Fund III, L.P. and CSL Energy Holdings III, Corp, LLC (the ?Option Holders?). Recitals WHEREAS, the Company was formed for the purpose of effecting a merger, amalgamation, capita

September 22, 2017 EX-10.2

Form of Letter Agreement among the Registrant and its officers and directors and Sentinel Management Holdings, LLC.***

EXHIBIT 10.2 , 2017 Sentinel Energy Services Inc. 1000 Louisiana Street, Suite 3850 Houston, TX 77002 Re: Initial Public Offering Ladies and Gentlemen: This letter (this ?Letter Agreement?) is being delivered to you in accordance with the Underwriting Agreement (the ?Underwriting Agreement?) entered into by and among Sentinel Energy Services Inc., a Cayman Islands exempted company (the ?Company?),

September 22, 2017 EX-3.1

Memorandum and Articles of Association.***

EXHIBIT 3.1 THE COMPANIES LAW (AS AMENDED) COMPANY LIMITED BY SHARES MEMORANDUM OF ASSOCIATION OF SENTINEL ENERGY SERVICES INC. THE COMPANIES LAW (AS AMENDED) COMPANY LIMITED BY SHARES MEMORANDUM OF ASSOCIATION OF SENTINEL ENERGY SERVICES INC. 1. The name of the company is Sentinel Energy Services Inc. (the ?Company?). 2. The registered office of the Company will be situated at the offices of Walk

September 22, 2017 S-1

As filed with the U.S. Securities and Exchange Commission on September 22, 2017

As filed with the U.S. Securities and Exchange Commission on September 22, 2017 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Sentinel Energy Services Inc. (Exact Name of Registrant as Specified in its Charter) Cayman Islands 6770 N/A (State or other jurisdiction of incorporation) (Prim

September 22, 2017 EX-99.1

Form of Audit Committee Charter.***

EXHIBIT 99.1 SENTINEL ENERGY SERVICES INC. AUDIT COMMITTEE CHARTER 1. STATUS The Audit Committee (the ?Committee?) is a committee of the Board of Directors (the ?Board?) of Sentinel Energy Services Inc. (the ?Company?). 2. PURPOSE The Committee is appointed by the Board for the primary purposes of: ? Performing the Board?s oversight responsibilities as they relate to the Company?s accounting polic

September 1, 2017 DRS/A

As confidentially submitted to the U.S. Securities and Exchange Commission on September 1, 2017

As confidentially submitted to the U.S. Securities and Exchange Commission on September 1, 2017 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Confidential Draft Submission No.2 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Sentinel Energy Services Inc. (Exact Name of Registrant as Specified in its Charter) Cayman Islands 6770 N/A (

September 1, 2017 DRSLTR

Sentinel Energy Services Inc. 1000 Louisiana Street, Suite 3850 Houston, Texas 77002 (281) 407-0686

Sentinel Energy Services Inc. 1000 Louisiana Street, Suite 3850 Houston, Texas 77002 (281) 407-0686 September 1, 2017 Mara L. Ransom Assistant Director Office of Consumer Products United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549-3561 Re: Sentinel Energy Services Inc. Draft Registration Statement on Form S-1 Submitted on July

July 3, 2017 EX-3.1

THE COMPANIES LAW (AS AMENDED) COMPANY LIMITED BY SHARES MEMORANDUM OF ASSOCIATION SENTINEL ENERGY SERVICES INC. THE COMPANIES LAW (AS AMENDED) COMPANY LIMITED BY SHARES MEMORANDUM OF ASSOCIATION SENTINEL ENERGY SERVICES INC.

EX-3.1 2 filename2.htm Exhibit 3.1 THE COMPANIES LAW (AS AMENDED) COMPANY LIMITED BY SHARES MEMORANDUM OF ASSOCIATION OF SENTINEL ENERGY SERVICES INC. THE COMPANIES LAW (AS AMENDED) COMPANY LIMITED BY SHARES MEMORANDUM OF ASSOCIATION OF SENTINEL ENERGY SERVICES INC. 1. The name of the company is Sentinel Energy Services Inc. (the “Company”). 2. The registered office of the Company will be situated

July 3, 2017 DRS

As confidentially submitted to the U.S. Securities and Exchange Commission on July 3, 2017

As confidentially submitted to the U.S. Securities and Exchange Commission on July 3, 2017 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Sentinel Energy Services Inc. (Exact Name of Registrant as Specified in its Charter) Cayman Islands 6770 N/A (State or other jurisdiction of incorpora

July 3, 2017 EX-10.5

SECURITIES PURCHASE AGREEMENT

Exhibit 10.5 SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this ?Agreement?), effective as of June 30, 2017, is made and entered into by and between Sentinel Energy Services Inc., a Cayman Islands exempted company (the ?Company?), and Sentinel Management Holdings, LLC, a Delaware limited liability company (the ?Buyer?). RECITALS: WHEREAS, the Buyer wishes to purchase from the C

July 3, 2017 EX-10.1

PROMISSORY NOTE

Exhibit 10.1 PROMISSORY NOTE Not to Exceed $200,000 June 12, 2017 FOR VALUE RECEIVED, the undersigned Sentinel Energy Services Inc., a Cayman Islands exempted company (?Maker? or the ?Company?), whose address is 1000 Louisiana Street, Suite 3850, Houston, TX 77002, hereby unconditionally promises to pay to the order of Sentinel Management Holdings, LLC, a Delaware limited liability company (?Payee

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