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U.S. SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 12b-25
Commission File Number : 333-12707
NOTIFICATION OF LATE FILING
(Check One)
[X] Form 10-K and Form 10-KSB [ ] Form 20-F [ ] Form 11-K [ ]
Form 10-Q and Form QSB [ ] Form N-SAR
For Period Ended: December 31, 1998
[ ] Transition Report on Form 10-K
[ ] Transition Report on Form 20-F
[ ] Transition Report on Form 11-K
[ ] Transition Report on Form 10-Q
[ ] Transition Report on Form N-SAR
For the Transition Period Ended:
Read the attached instruction sheet before preparing form. Please print or
type.
Nothing in this form shall be construed to imply that the Commission has
verified any information contained herein.
If the notification relates to a portion of the filing checked above,
identify the Item(s) to which the notification relates:
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Part I - Registrant Information
Full Name of Registrant: Mariner Energy, Inc.
Former Name if applicable
Address of Principal Executive Office (street and number):
580 WestLake Park Blvd., Suite 1300
City, State and Zip Code: Houston, Texas 77079
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Part II - Rules 12b-25 (b) and (c)
If the subject report could not be filed without unreasonable effort or expense
and the registrant seeks relief pursuant to Rule 12b-25(b), the following should
be completed. (Check box if appropriate)
[X] (a) The reasons described in reasonable detail in Part III of this form
could not be eliminated without unreasonable effort or expense;
[X] (b) The subject annual report, semi-annual report, transition report on
Form 10-K, 20-F, 11-K or Form N-SAR, or portion thereof will be filed
on or before the 15th calendar day following the prescribed due date;
or the subject quarterly report or transition report on Form 10-Q, or
portion thereof will be filed on or before the fifth calendar day
following the prescribed due date; and
[ ] (c) The accountant's statement or other exhibit required by rule
12b-25(c) has been attached if applicable.
Part III - Narrative
State below in reasonable detail the reasons why Form 10-K and form 10-KSB,
11-K, 20-F, 10-Q and Form 10-QSB, N-SAR or the transition report or portion
thereof could not be filed within the prescribed time period. (Attach extra
sheets if needed.)
The difficult conditions in the oil and gas exploration and production
industry have made it impossible to conclude by March 31, 1999, the year-end
procedures necessary to timely complete the Company's Form 10-K with respect to
providing all of the required business, property and financial information.
Therefore, the Company is unable, without unreasonable effort and expense, to
file its Form 10-K for its fiscal year ended December 31, 1998, by March 31,
1999. The Company is striving to conclude its year-end procedures and
anticipates filing its Form 10-K on or before April 15, 1999.
Part IV - Other Information
(1) Name and telephone number of person to contact in regard to this
notification.
Christopher E. Lindsey 281/584-5558
(name) (area code) (telephone number)
(2) Have all other periodic reports required under Section 13 or 15(d)
of the Securities Exchange Act of 1934 or Section 30 of the Investment Company
Act of 1940 during the preceding 12 months or for such shorter period that the
registrant was required to file such report(s) been filed? If the answer is no,
identify report(s). [X] Yes [ ] No
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(3) Is it anticipated that any significant change in results of
operations from the corresponding period for the last fiscal year will be
reflected by the earnings statements to be included in the subject report or
portion thereof? [X] Yes [ ] No
If so: attach an explanation of the anticipated change, both
narratively and quantitatively, and, if appropriate, state the reasons why a
reasonable estimate of the results cannot be made.
As reported in a press release dated February 9, 1999, the Company had
a net loss of $58.4 million for 1998, which included a fourth quarter $50.8
million non-cash ceiling test impairment charge required under full cost
accounting rules. Revenue in 1998 was $56.7 million compared to $62.8 million in
1997 as a result of production increases being more than offset by lower
realized prices.
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Mariner Energy, Inc. has caused this notification to be signed on its
behalf by the undersigned thereunto duly authorized.
Date: March 31, 1999
By: /s/ FRANK A. PICI
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Frank A. Pici, Chief Financial Officer
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