U.S. SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549



FORM 10-K/A

(Amendment No. 1)



x Annual Report pursuant to section 13 or 15(d) of the Securities Exchange Act of 1934



For the fiscal year ended February 28, 2009

OR
Transition Report pursuant to section 13 or 15(d) of the Securities Exchange

Act of 1934



Commission File #000-52794



SENTRY PETROLEUM LTD.(Exact name of registrant as specified in its charter)



NEVADA20-4475552(State or other jurisdiction of incorporation or(I.R.S. Employer Identification No.)organization)




999 18th Street, Suite 3000, Denver CO, 80202(Address of Principal Executive Offices including Zip Code)



(866) 680 7649(Issuer's telephone number, including area code)



Securities registered under Section 12(b) of the Act: NONE



Securities registered under Section 12(g) of the Act: COMMON STOCK(Title of class)



The issuer (1) filed all reports required to be filed by Section 13 or 15(d) of the Exchange Act during the past 12 months (or for such shorter period that the registrant was required to filed such reports), and (2) has been subject to such filing requirements for the past 90 days: ̈ NO x YES



Check if there is no disclosure of delinquent filers in response to Item 405 of Regulation S-B contained in this form, and no disclosure will be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.: X



Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  ̈YES x NO



The issuer's revenues for its most recent fiscal year: $Nil.



The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was sold, or the average bid and ask price of such common equity, as of May 20, 2009 is: $44,317,232



The number of shares outstanding of each of the issuer's classes of common equity, as of February 28, 2009 and May 20, 2009 46,325,600 Shares Common Stock. $0.0001 par value per share.



Transitional Small Business Disclosure Format:  ̈YES x NO





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EXPLANATORY NOTE

This Amendment No. 1 on Form 10-K/A amends the Company's Annual Report on Form 10-K for the fiscal year ended February 28, 2009, filed with the Securities and Exchange Commission on May 29, 2009.



In Item 15, Exhibits, the following two exhibits were not attached to the original 10-K document.

Exhibit 10.2 Purchase agreement for ATP862, ATP864, ATP866 and Exhibit 21.1 Subsidiaries of Registrant

For purposes of this Form 10-K/A, and in accordance with Rule 12b-15 under the Securities Exchange Act of 1934, as amended, Item 15 of the Original Form 10-K has been restated in its entirety. Other than the above noted exhibits, there are no other changes to the Original Form 10-K. No amendments have been made to this Form 10-K/A to reflect events occurring after the filing of the Original Form 10-K or to modify or update those disclosures affected by subsequent events. Accordingly, this Form 10-K/A should be read in conjunction with the Companys SEC filings made subsequent to the filing of the Original Form 10-K, including any amendments of those filings. In addition, this Form 10-K/A includes updated certifications from the Companys CEO and CFO as Exhibits 31.1, 31.2, 32.1 and 32.2.



ITEM 15. EXHIBITS.

|               |                                                                                                                                                            
|-------------- | -----------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit Number | Description                                                                                                                                                
|3.1            | Articles of Incorporation (1)                                                                                                                              
|3.2            | By-Laws (1)                                                                                                                                                
|4.1            | Specimen Stock Certificate (1)                                                                                                                             
|5.1            | Opinion on legality (1)                                                                                                                                    
|10.1           | Purchase agreement for ATP865 (3)                                                                                                                          
|10.2           | Purchase agreement for ATP862, ATP864, ATP866                                                                                                              
|14.1           | Code of ethics (2)                                                                                                                                         
|21.1           | Subsidiaries of Registrant                                                                                                                                 
|31.1           | Certification of Chief Executive Officer pursuant to Rule 13a-14 and Rule 15d-14(a), promulgated under the Securities and Exchange Act of 1934, as amended.
|31.2           | Certification of Chief Financial Officer pursuant to Rule 13a-14 and Rule 15d-14(a), promulgated under the Securities and Exchange Act of 1934, as amended.
|32.1           | Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Chief Executive Officer).          
|32.2           | Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Chief Financial Officer).          
|99.1           | Audit committee charter (2)                                                                                                                                
|               |                                                                                                                                                            

(1) These documents have been filed with previous SB-2 on April 7, 2006 and have been included by reference.

(2) These documents have been filed with Form 10KSB for the year ending February 28, 2007 and have been included by reference.

(3) This document has been filed with Form 10K for the year ending February 28, 2009 and have been included by reference.



SIGNATURES

In accordance with Section 13 or 15(d) of the Exchange Act, the registrant caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Sentry Petroleum Ltd.

(Registrant)



|      |               |     |                                                      
|----- | ------------- | --- | -----------------------------------------------------
|Date: | June 2 , 2009 | By: | RAJ RAJESWARAN                                       
|      |               |     | _____________________________________________________
|      |               |     | President and Chief Executive Officer                
|Date: | June 2, 2009  | By: | ARNE RAABE                                           
|      |               |     | _____________________________________________________
|      |               |     | Chief Financial Officer