Rowan Drill S-1/A IPO registration (amended)

Exhibit 3.210

tJJe[aware PAGE 1 "Ifie :First State I, JEFFREY W. BULLOCK, SECRETARY OF STATE OF THE STATE OF DELAWARE, DO HEREBY CERTIFY THE ATTACHED IS A TRUE AND CORRECT COPY OF THE RESTATED CERTIFICATE OF "ROWAN COMPANIES, INC. ", FILED IN THIS OFFICE ON THE ELEVENTH DAY OF MAY, A.D. 2012, AT 8:42 O'CLOCK A.M. A FILED COPY OF THIS CERTIFICATE HAS BEEN FORWARDED TO THE NEW CASTLE COUNTY RECORDER OF DEEDS. 0418601 8100 120545991 You may verify this certificate online at corp.delaware.gov/authver.shtml ON: 9565799 DATE: 05-11-12

State of Delaware Secretary of State Division o£Corporations Delivered 08:46 AM 05/11/2012 FILED 08:42 AM 05/11/2012 SRV 120545991 - 0418601 FILE AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF ROWAN COMPANIES, INC. Rowan Companies, Inc. (formerly Rowan Drilling Company, Inc.), a corporation organized under the General Corporation Law of the State of Delaware on December 15, 1947 (the "Corporation"), DOES HEREBY CERTIFY: FIRST. The name of the Corporation is Rowan Companies, Inc. SECOND. This Amended and Restated Certificate of Incorporation has been duly adopted pursuant to and in accordance with the provisions of Sections 242 and 245 of the Delaware General Corporation Law. THIRD. The Corporation's Certificate oflncorporation is hereby amended and restated in its entirety as set forth on Exhibit A attached hereto. IN WITNESS WHEREOF, this Amended and Restated Certificate oflncorporation has been signed by the undersigned on this 10th day of May, 2012. (Signature page follows) HOUDMS/312042.3

HOUDMS/312042.3 ROWAN COMPANIES, INC. William H. Wells Senior Vice President, Chief Financial Officer and Treasurer

EXHIBIT A AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF ROWAN COMPANIES, INC. Rowan Companies, Inc. (formerly Rowan Drilling Company, Inc.), a corporation organized under the General Corporation Law of the State of Delaware on December 15, 1947, DOES HEREBY CERTIFY: FIRST. The name of the corporation is Rowan Companies, Inc. (the "Corporation"). SECOND. The address of the Corporation's registered office in the State of Delaware is 2711 Centerville Road, Suite 400, in the City of Wilmington, County of New Castle, 19808. The registered agent of the Corporation is Corporation Service Company. THIRD. The purpose of the Corporation is to engage in any lawful act or activity for which corporations may be organized under the General Corporation Law of the State of Delaware (the "DGCL"). FOURTH. The total number of shares of stock which the Corporation shall have authority to issue is 1,000. All such shares are to be Common Stock, par value of$0.125 per share. FIFTH. Unless and except to the extent that the bylaws of the Corporation shall so require, the election of directors of the Corporation need not be by written ballot. SIXTH. In furtherance and not in limitation of the powers conferred by the laws of the State of Delaware, the Board of Directors of the Corporation is expressly authorized to make, alter and repeal the bylaws of the Corporation. SEVENTH. Section I . Right to Indemnification. Each person who was or is made a party or is threatened to be made a party to or is involved in any action, suit or proceeding, whether civil, criminal, administrative or investigative (hereinafter a "proceeding"), by reason of the fact that he or she is the legal representative, is or was or has agreed to become a director or officer of the Corporation or is or was serving or has agreed to serve at the request of the Corporation as a director, officer, employee or agent of another corporation or of a partnership, joint venture, trust or other enterprise, including service with respect to employee benefit plans, whether the basis of such proceeding is alleged action in an official capacity as a director or officer or in any other capacity while serving or having agreed to serve as a director or officer, shall be indemnified and held harmless by the Corporation to the fullest extent authorized by the DGCL, as the same exists or may hereafter be amended (but, in the case of any such amendment, only to the extent that such amendment permits the Corporation to provide broader indemnification rights than said law pennitted the Corporation to provide prior to such amendment) against all expense, liability llOUDMS/312042.3

and loss (including without limitation, attorneys' fees, judgments, fines, ERISA excise taxes or penalties and amounts paid or to be paid in settlement) reasonably incurred or suffered by such person in connection therewith and such indemnification shall continue as to a person who has ceased to serve in the capacity which initially entitled such person to indemnity hereunder and shall inure to the benefit of his or her heirs, executors and administrators; provided, however, that the Corporation shall indemnify any such person seeking indemnification in connection with a proceeding ( or part thereof) initiated by such person only if such proceeding ( or part thereof) was authorized by the Board of Directors. The right to indemnification conferred in this Article Seventh shall be a contract right and shall include the right to be paid by the Corporation the expenses incurred in defending any such proceeding in advance of its final disposition; provided, however, that, if the DGCL requires, the payment of such expenses incurred by a current, former or proposed director or officer in his or her capacity as a director or officer or proposed director or officer (and not in any other capacity in which service was or is or has been agreed to be rendered by such person while a director or officer, including, without limitation, service to an employee benefit plan) in advance of the final disposition of a proceeding, shall be made only upon delivery to the Corporation of an undertaking, by or on behalf of such indemnified person, to repay all amounts so advanced if it shall ultimately be determined that such indemnified person is not entitled to be indemnified under this Article Seventh or otherwise. Section 2. Indemnification of Employees and Agents. The Corporation may, by action of the Board of Directors, provide indemnification to employees and agents of the Corporation, individually or as a group, with the same scope and effect as the indemnification of directors and officers provided for in this Article Seventh. Section 3. Right of Claimant to Bring Suit. If a written claim received by the Corporation from or on behalf of an indemnified party under this Article Seventh is not paid in full by the Corporation within ninety days after such receipt (thirty days in the case of a claim for expenses incurred in defending any proceeding in advance of its final disposition where the required undertaking, if any is required, has been tendered to the Corporation), the claimant may at any time thereafter bring suit against the Corporation to recover the unpaid amount of the claim and, if successful in whole or in part, the claimant shall be entitled to be paid also the expense of prosecuting such claim. It shall be a defense to any such action ( other than an action brought to enforce a claim for expenses incurred in defending any proceeding in advance of its final disposition where the required undertaking, if any is required, has been tendered to the Corporation) that the claimant has not met the standards of conduct which make it permissible under the DGCL for the Corporation to indemnify the claimant for the amount claimed, but the burden of proving such defense shall be on the Corporation. Neither the failure of the Corporation (including the Board of Directors, independent legal counsel, or its stockholders) to have made a determination prior to the commencement of such action that indemnification of the claimant is proper in the circumstances because he or she has met the applicable standard of conduct set forth in the DGCL, nor an actual determination by the Corporation (including the Board of Directors, independent legal counsel, or its stockholders) that the claimant has not met such applicable standard of conduct, shall be a defense to the action or create a presumption that the claimant has not met the applicable standard of conduct. Section 4. Nonexclusivity of Rights. The right to indemnification and the advancement and payment of expenses conferred in this Article Seventh shall not be exclusive of any other IIOUDMS/312042.3

right which any person may have or hereafter acquire under any law (common or statutory), provision of this Amended and Restated Certificate of Incorporation, bylaw, agreement, vote of stockholders or disinterested directors or otherwise. Section 5. Insurance. The Corporation may maintain insurance, at its expense, to protect itself and any person who is or was serving as a director, officer, employee or agent of the Corporation or is or was serving at the request of the Corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against any expense, liability or loss, whether or not the Corporation would have the power to indemnify such person against such expense, liability or loss under the DGCL. Section 6. Savings Clause. If this Article Seventh or any portion hereof shall be invalidated on any ground by any court of competent jurisdiction, then the Corporation shall nevertheless indemnify and hold harmless each director and officer of the Corporation, as to costs, charges and expenses (including attorneys' fees), judgments, fines, and amounts paid in settlement with respect to any action, suit or proceeding, whether civil, criminal, administrative or investigative to the full extent permitted by any applicable portion of this Article Seventh that shall not have been invalidated and to the fullest extent permitted by applicable law. Section 7. Definitions. For purposes of this Article Seventh, reference to the "Corporation" shall include, in addition to the Corporation, any constituent corporation (including any constituent of a constituent) absorbed in a consolidation or merger prior to ( or, in the case of an entity specifically designated in a resolution of the Board of Directors, after) the adoption of this Amended and Restated Certificate of Incorporation and which, if its separate existence had continued, would have had the power and authority to indemnify its directors, officers and employees or agents, so that any person who is or was a director, officer, employee or agent of such constituent corporation, or is or was serving at the request of such constituent corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise, shall stand in the same position under the provisions of this Article Seventh with respect to the resulting or surviving corporation as he would have with respect to such constituent corporation if its separate existence had continued. Nothing contained herein shall affect any rights to indemnification to which any person may be entitled by law. No amendment or repeal of this Article Seventh shall apply to or have any effect on any right to indemnification provided hereunder with respect to any acts or omissions occurring prior to such amendment or repeal. EIGHTH. No director of the Corporation shall be personally liable to the Corporation or any of its stockholders for monetary damages for breach of fiduciary duty as a director, except to the extent such exemption from liability or limitation thereof is not permitted under the DGCL as the same exists or may hereafter be amended. If the DGCL is hereafter amended to authorize corporate action further eliminating or limiting the personal liability of directors, then the liability of a director of the Corporation shall be eliminated or limited to the fullest extent authorized by the DGCL, as so amended. Any repeal or modification of this Article Eighth shall not adversely affect any right or protection of a director of the Corporation with respect to any acts or omissions of such director occurring prior to such repeal or modification. HOUDMS/312042.3

NINTH. The corporation reserves the right at any time, and from time to time, to amend, alter, change or repeal any provision contained in this Amended and Restated Certificate of Incorporation, and other provisions authorized by the laws of the State of Delaware at the time in force may be added or inserted, in the manner now or hereafter prescribed by law; and all rights, preferences and privileges of any nature conferred upon stockholders, directors or any other persons by and pursuant to this Amended and Restated Certificate of Incorporation in its present form or as hereafter amended are granted subject to the rights reserved in this Article Ninth. TENTH. This Amended and Restated Certificate oflncorporation has been duly adopted in accordance with Sections 242 and 245 of the General Corporation Law of the State of Delaware. ** ** ** HOUDMS/312042.3