As filed with the Securities and Exchange Commission on August 9, 2018

Registration No. 333-       

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-1

REGISTRATION STATEMENT
UNDER THE SECURITIES ACT OF 1933

Spartan Energy Acquisition Corp.
(Exact name of registrant as specified in its charter)

9 West 57th Street, 43rd Floor

New York, NY

(212) 515-3200
(Address, including zip code, and telephone number,
including area code, of registrant’s principal executive offices)

Geoffrey Strong

Chief Executive Officer

Spartan Energy Acquisition Corp.

9 West 57th Street, 43rd Floor

New York, NY

(212) 515-3200
(Name, address, including zip code, and telephone number,
including area code, of agent for service)

Copies to:

Approximate date of commencement of proposed sale to the public: As soon as practicable after the effective date of this registration statement.

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933 check the following box. ☐

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☒ 333-226274

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

CALCULATION OF REGISTRATION FEE

The Registrant Statement shall become effective upon filing with the Securities and Exchange Commission
in accordance with Rule 462(b) under the Securities Act of 1933, as amended.

EXPLANATORY NOTE

This Registration Statement on Form S-1 is being filed by Spartan Energy Acquisition Corp., a Delaware corporation (the “Registrant”), pursuant to Rule 462(b) under the Securities Act of 1933, as amended, and General Instruction V to Form S-1. This Registration Statement relates to the Registrant’s Registration Statement on Form S-1, as amended (File No. 333-226274) (the “Prior Registration Statement”), initially filed by the Registrant on July 20, 2018 and declared effective by the Securities and Exchange Commission on August 9, 2018. This Registration Statement covers the registration of an additional 9,200,000 of the Registrant’s units, each consisting of one share of the Registrant’s Class A common stock, $0.0001 par value per share, and one-third of one warrant, each whole warrant entitling the holder thereof to purchase one whole share of the Registrant’s Class A common stock, including 1,200,000 units that may be purchased by the underwriters to cover over-allotments, if any. The required opinions of counsel and related consents and accountant’s consent are attached hereto and filed herewith. Pursuant to Rule 462(b), the contents of the Prior Registration Statement, including the exhibits thereto, are incorporated by reference into this Registration Statement.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, the registrant has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of New York, New York on the 9th day of August, 2018.

Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.

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