6-K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

______________________

FORM 6-K

REPORT OF A FOREIGN ISSUER

PURSUANT TO RULE 13A-16 OR 15D-16

OF THE SECURITIES EXCHANGE ACT OF 1934

For February 27, 2012

______________________

Archer Limited

Par-la-Ville Place, 14 Par-la-Ville Road

Hamilton HM 08

Bermuda

 (Address of principal executive offices)

______________________

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F x         Form 40-F o

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes  o              No x

If ‘‘Yes’’ is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b):

Exhibits

99.1	“Archer Limited Announces Notice of Redemption of Allis-Chalmers Energy Inc. 9.0% and 8.5% Senior Notes, due 2014 and 2017,” press release dated January 31, 2012.
99.2	“Archer Limited announces fourth quarter 2011 results and preliminary results for 2011 earnings release date and conference call information,” press release dated February 24, 2012.

“Safe Harbor” Statement under the US Private Securities Litigation Reform Act of 1995: the matters discussed in this document may contain forward-looking statements. These statements are based on various assumptions, many of which are based, in turn, upon further assumptions, including Archer management’s examination of historical operating trends. Included among other factors that in Archer’s view could cause actual results to differ materially from the forward-looking statements contained in this document are the following: the competitive nature of the offshore drilling industry, oil and gas prices, technological developments, government regulations, changes in economical conditions or political events, inability of Archer to obtain financing for new investments on favorable terms, changes of the spending plan of Archer’s customers, changes in Archer’s operating expenses including crew wages, insurance, repairs and maintenance, failure of yards to comply with delivery schedules on a timely basis and other risks indicated in the risk factors included in Archer’s registration statement on Form F-4, filed with the US Securities and Exchange Commission on January 24, 2011, and other filings with the US Securities and Exchange Commission.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	ARCHER LIMITED (Registrant)
	By: Archer Management (US) LLC
Date: February 27, 2012
	/s/ Max Bouthillette
	Name: Max Bouthillette
	Title: Vice President and General Counsel

EX-99.1

Exhibit 99.1

Archer Limited Announces Notice of Redemption of Allis-Chalmers Energy Inc. 9.0% and 8.5% Senior Notes, due 2014 and 2017

31|01|2012

Hamilton, Bermuda (January 31, 2012)

Archer Limited announces that its wholly-owned subsidiary, Allis-Chalmers Energy Inc., has notified holders of its 9.0% Senior Notes, due 2014 (the "2014 Notes"), and its 8.5% Senior Notes, due 2017 (the "2017 Notes"), that all notes will be redeemed on March 1, 2012.

Pursuant to the terms of the Indenture, the 2014 Notes will be redeemed at a redemption price of 100.000% of the outstanding aggregate principal amount of the 2014 Notes, plus accrued and unpaid interest on the 2014 Notes on March 1, 2012.

Pursuant to the terms of the Indenture, the 2017 Notes will be redeemed at a redemption price of 104.250% of the outstanding aggregate principal amount of the 2017 Notes, plus accrued and unpaid interest on the 2017 Notes on March 1, 2012.

Wells Fargo Bank, N.A. will serve as Paying Agent.  Payment of the Redemption Price will be made only upon presentation and surrender of the Notes to the Paying Agent. Direct inquiries to the Trustee should be made by telephone to 1-800-344-5128 or by fax at 612-667-6282.

This press release is for informational purposes only and is not an offer to purchase, or the solicitation of an offer to purchase, the Notes.

This information is subject of the disclosure requirements acc. to §5-12 vphl (Norwegian Securities Trading Act)

EX-99.2

Exhibit 99.2

Archer Limited announces fourth quarter 2011 results and preliminary results for 2011 earnings release date and conference call information

24|02|2012

Hamilton, Bermuda (February 24, 2012)

Archer Limited's fourth quarter 2011 results and preliminary results for 2011 are scheduled to be released on Wednesday February 29, 2012 before the start of trading on Oslo Stock Exchange.

In connection with the earnings release, a conference call/webcast will be held at 1PM GMT (2PM CET) on Wednesday 29, 2012.

To listen to the presentation, the following options are available:

A. Webcast

In order to listen to the presentation on the web, you need to have installed a sound card on your computer.

To register for the webcast please go to www.media-server.com/m/p/sjinf4c4

B. Conference call

To access the call, which is open to the public, please contact the conference call operator at the participant telephone numbers listed below. Please call in 20 minutes prior to the scheduled start time, and ask for the "Archer Fourth Quarter 2011 Results and Preliminary 2011 Results Conference Call."

Participant Telephone Numbers:

+44 (0)20 7136 2054 UK Toll

0800 279 4841 UK Toll Free

+1 646 254 3362 USA Toll

1877 249 9037 USA Toll Free

+47 2350 0486 Norway Toll

800 56054 Norway Toll Free

Confirmation Code: 8211045

The operator will ask for your name, company and the confirmation code.

Following the presentation there will be a Q&A session. Information on "how to ask questions" will be given at the beginning of the Q&A session.

Playback Option:

If you are unable to participate in the conference call on the day, there is an opportunity to listen to a replay on www.archerwell.com/webcast or to listen to a playback by dialing:

+44 (0)20 7111 1244 UK Toll

+1 347 366 9565 US Toll

+47 2100 0498 Norway Toll

followed by replay access number: 8211045#

Participant list information required: Full name & company

This information is subject of the disclosure requirements acc. to §5-12 vphl (Norwegian Securities Trading Act)