SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM 12b-25

                                                Commission File Number 000-17325
                                                                       ---------

                           NOTIFICATION OF LATE FILING


(Check One): |_| Form 10-K   |_| Form 11-K    |_| Form 20-F
             |x| Form 10-Q   |_| Form N-SAR

      For Period Ended: March 31, 2006
                        --------------

      |_|   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 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:


                                     PART I
                             REGISTRANT INFORMATION


ERHC Energy Inc.
- ---------------------------------------------
Full Name of Registrant


Environmental Remediation Holding Corporation
- ---------------------------------------------
Former Name if Applicable


5444 Westheimer, Suite 1570
- ---------------------------------------------------------
Address of Principal Executive Office (Street and Number)

Houston, TX 77056
- ---------------------------------------------
City, State and Zip Code




                                     PART II
                             RULE 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.)

      (a)   The reasons described in reasonable detail in Part III of this form
            could not be eliminated without unreasonable effort or expense;

      (b)   The subject annual report, semi-annual report, transition report on
            Form 10-K, Form 20-F, Form 11-K or Form N-SAR, or portion thereof
|X|         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 why the Form 10-K, 11-K, 20-F 10-Q, N-SAR
or the transition report portion thereof could not be filed within the
prescribed time period. (Attach extra sheets if needed.)

            The compilation, dissemination and review of the information
required to be presented in the Form 10-Q for the relevant period has imposed
time constraints that have rendered timely filing of the Form 10-Q impracticable
without undue hardship and expense to the registrant. The registrant undertakes
the responsibility to file such report no later than five days after its
original prescribed due date.


                                     PART IV
                                OTHER INFORMATION

(1) Name and telephone number of person to contact in regard to this
notification.

Walter Brandhuber                                                   713-626-4700
- --------------------------------------------------------------------------------
(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

(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?

                                                                 |_| Yes  |x| 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.




ERHC Energy Inc.
- -------------------------------------------------
     (Name of Registrant as Specified in Charter)

Has caused this notification to be signed on its behalf by the undersigned
thereunto duly authorized.


Date  05/11/06                          By /s/ Walter Brandhuber
    ------------------                       -----------------------------------
                                             Walter Brandhuber
                                             President


      INSTRUCTION: The form may be signed by an executive officer of the
      registrant or by any other duly authorized representative. The name and
      title of the person signing the form shall be typed or printed beneath the
      signature. If the statement is signed on behalf of the registrant by an
      authorized representative (other than an executive officer), evidence of
      the representative's authority to sign on behalf of the registrant shall
      be filed with the form.


                                    ATTENTION

      Intentional misstatements or omissions of fact constitute Federal Criminal
Violations (see 18 U.S.C. 1001).


                              GENERAL INSTRUCTIONS

      1. This form is required by Rule 12b-25 of the General Rules and
Regulations under the Securities Exchange Act of 1934.

      2. One signed original and four conformed copies of this form and
amendments thereto must be completed and filed with the Securities and Exchange
Commission, Washington, D.C. 20549, in accordance with Rule 0-3 of the General
Rules and Regulations under the Act. The information contained in or filed with
the form will be made a matter of public record in the Commission files.

      3. A manually signed copy of the form and amendments thereto shall be
filed with each national securities exchange on which any class of securities of
the registrant is registered.

      4. Amendments to the notifications must also be filed on Form 12b-25 but
need not restate information that has been correctly furnished. The form shall
be clearly identified as an amended notification.

      5. ELECTRONIC FILERS. This form shall not be used by electronic filers
unable to timely file a report solely due to electronic difficulties. Filers
unable to submit a report within the time period prescribed due to difficulties
in electronic filing should comply with either Rule 201 or Rule 202 of
Regulation S-T or apply for an adjustment in filing date pursuant to Rule 13(b)
of Regulation S-T.