x  Form 10-K ¨  Form 20-F ¨  Form 11-K ¨  Form 10-Q ¨  Form N-SAR ¨  Form N-CSR UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549   FORM 12B-25   NOTIFICATION OF LATE FILING   SEC File Number 000-32669 CUSIP Number 42235Q101

For Period Ended December 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 Instruction (on back page) 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: Not Applicable

PART I — REGISTRANT INFORMATION

Heartland Oil & Gas Corp.

Full Name of Registrant

Former Name if Applicable

1625 Broadway, Suite 1480

Addresses of Principal Executive Office

Denver, CO 80202

City, State and Zip Code

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)

	(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, Form 20-F, 11-K, Form N-SAR or Form N-CSR, or portion thereof, will be filed on or before the fifteenth calendar day following the prescribed due date; or the subject quarterly report of 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 Forms 10-K, 10-KSB, 20-F, 11-K, 10-Q, N-SAR, N-CSR or the transition report or portion thereof, could not be filed in the prescribed time period.

On March 16, 2007, the Company engaged KBL, LLP to audit its financial statements for the year ended December 31, 2006. Because of the recent engagement, KBL will not have adequate time to complete its review by the initial filing date of the Form 10-K without the Company incurring unreasonable effort or expense.

PART IV — OTHER INFORMATION

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

Robert Poley	303	530-9504
(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).    Yes  x    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 of portion thereof?     Yes  ¨    No  x

If so, attach an explanation of the anticipated change, both narratively and quantatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made.

Heartland Oil & Gas Corp.

(Name of Registrant as Specified in Charter)

has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized.

Date:	March 29, 2007	By:	/s/ Robert L. Poley
		Name:	Robert L. Poley
		Title:	Chief Financial Officer

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