<PAGE>
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 (g) OF THE
SECURITIES EXCHANGE ACT OF 1934
-----------------------------------------
SPINNAKER EXPLORATION COMPANY
(Exact name of registrant as specified in its charter)
<TABLE>
<CAPTION>
<S> <C>
DELAWARE 76-0560101
(State of incorporation or organization) (I.R.S. Employer
Identification No.)
1200 SMITH STREET, SUITE 800
HOUSTON, TEXAS 77002
(Address of principal executive offices) (Zip Code)
</TABLE>
-----------------------------------------
If this Form relates to the registration of a class of securities pursuant to
Section 12(b) of the Exchange Act and is effective pursuant to General
Instruction A.(c), check the following box. [ ]
If this Form relates to the registration of a class of securities pursuant to
Section 12(g) of the Exchange Act and is effective pursuant to General
Instruction A.(d), check the following box. [X]
Securities Act registration statement file number to which this form relates:
333-83093 (if applicable)
Securities to be registered
pursuant to Section 12(b) of the Act:
None
(Title of Class)
Securities to be registered
pursuant to Section 12(g) of the Act:
Title of class to be so registered
----------------------------------
Common Stock, par value $.01 per share
<PAGE>
INFORMATION REQUIRED IN REGISTRATION STATEMENT
ITEM 1. DESCRIPTION OF REGISTRANT'S SECURITIES TO BE REGISTERED.
A description of the Registrant's Common Stock, par value $.01 per share,
will be set forth under the caption "Description of Capital Stock" in the
prospectus to be filed by the Registrant pursuant to Rule 424(b) under the
Securities Act of 1933, as amended, which prospectus will constitute a part of
the Registrant's Registration Statement on Form S-1, as amended (Registration
No. 333-83093) (the "Form S-1 Registration Statement"), initially filed with the
Securities and Exchange Commission on July 16, 1999. Such prospectus, in the
form in which it is so filed, shall be deemed to be incorporated herein by
reference.
ITEM 2. EXHIBITS.
The following exhibits to this Registration Statement on Form 8-A are
incorporated by reference from the documents specified, which have been filed
with the Securities and Exchange Commission.
<TABLE>
<CAPTION>
Exhibit
Number
-------
<C> <S>
1. Specimen Common Stock certificate -- incorporated herein by reference to Exhibit 4.1 to the
Form S-1 Registration Statement
2.1 Certificate of Incorporation of the Registrant, as amended -- incorporated herein by reference
to Exhibit 3.1 to the Form S-1 Registration Statement
2.2 Restated Bylaws of the Registrant -- incorporated herein by reference to Exhibit 3.2 to the
Form S-1 Registration Statement
</TABLE>
SIGNATURE
Pursuant to the requirements of Section 12 of the Securities and Exchange
Act of 1934, the registrant has duly caused this registration statement to be
signed on its behalf by the undersigned, thereto duly authorized.
SPINNAKER EXPLORATION COMPANY
By: /s/ ROGER L. JARVIS
------------------------
Name: Roger L. Jarvis
Title: Chairman, President and Chief
Executive Officer
Date: September 27, 1999
2
<PAGE>
INDEX TO EXHIBITS
<TABLE>
<CAPTION>
Exhibit No. Description Sequentially Numbered Page
- ----------- ---------------------------------------------------------- --------------------------
<C> <S> <C>
1. Specimen Common Stock certificate -- incorporated Incorporated by reference
herein by reference to Exhibit 4.1 to the Form S-1
Registration Statement
2.1 Certificate of Incorporation of the Registrant, as Incorporated by reference
amended -- incorporated herein by reference to Exhibit
3.1 to the Form S-1 Registration Statement
2.2 Restated Bylaws of the Registrant -- incorporated Incorporated by reference
herein by reference to Exhibit 3.2 to the Form S-1
Registration Statement
</TABLE>
3