EMPLOYMENT AGREEMENT

Exhibit 10.17

December 19, 2005

Mr. Evert Beierbach

Box 29, Site 7, R.R. 7

Calgary Alberta T2P 2G7

PERSONAL & CONFIDENTIAL

Dear Evert:

RE: Offer of Employment

We are pleased to offer you the position of Senior Vice President, Drilling Rig Division with Tesco Corporation (“Tesco”) starting on December 19, 2005. This position reports to the President and Chief Executive Officer.

Subject to approval of the Tesco Board of Directors, you will be granted 15,000 Tesco common share stock options within 90 days of accepting this offer. The exercise price is subject to the closing market price on the last trading day prior to your deemed acceptance of this offer, and all other details shall be governed by Tesco’s Stock Option Plan.

In addition to the terms stated in this letter, your employment will be governed by policies generally applicable to executive employees of Tesco Corporation and or the Employment Agreement dated December 19, 2005.

To accept this offer, please sign two copies and return in confidence to Cathy Robinson, C.H.R.P., Manager, Human Resources – Canada for final execution.

We look forward to your continued employment with Tesco Corporation.

EMPLOYMENT AGREEMENT

THIS AGREEMENT made effective the 19th day of December, 2005,

BETWEEN:

TESCO CORPORATION

a body corporate, having its head office in the

City of Calgary, in the Province of Alberta

(hereinafter referred to as “Tesco”)

OF THE FIRST PART,

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K. EVERT BEIERBACH

residing in the City of Calgary in the Province of Alberta

(hereinafter referred to as the “Employee”)

OF THE SECOND PART.

WHEREAS the Employee has been in the employment of Tesco and its affiliates since December 1, 1993 and Tesco predecessor companies since May 1, 1980; and

WHEREAS Tesco and the Employee wish to record the terms of employment of Employee with Tesco;

NOW THEREFORE in consideration of the premises hereto and the covenants and agreements hereinafter set forth and contained, the parties hereto covenant and agree as follows:

Tesco hereby agrees that it will employ the Employee as Senior Vice President, Drilling Rig Division of the Corporation and the Employee agrees to accept such employment all in accordance with the provisions of this Agreement. The parties to this Agreement agree that the relationship between Tesco and the Employee created by this Agreement is that of employer-employee.

This Agreement shall continue in full force and effect from the date hereof until terminated in accordance with paragraph 8, 9 or 10 hereof.

The Employee shall devote his full time, attention and ability to the business and affairs of Tesco and shall well and faithfully serve Tesco during the continuance of his employment hereunder and shall use his best efforts to promote the interests of Tesco. The Employee shall carry out the duties normally attributable to his position of Senior vice President, Drilling

Rig Division in Canada and such other duties not inconsistent with his position of Senior Vice President, Drilling Rig Division as are assigned to him from time to time by the President and Chief Executive Officer of Tesco. The Employee shall, at no additional remuneration, serve in such other comparable positions with affiliates of Tesco as the President and Chief Executive Officer of Tesco may from time to time determine.

Upon termination of his employment with Tesco and its affiliates and for a period of 12 months thereafter, the Employee shall not in any manner whatsoever, without the prior written consent of Tesco, directly or indirectly, engage in, carry on or be concerned with or interested in the same or a substantially similar business as that carried on by Tesco, either as an individual or as a member of a firm or as a shareholder holding, directly or indirectly, more than 5% of the outstanding voting shares of a corporation, and he shall not solicit, or assist or be connected with or interested in any other person, firm or corporation soliciting, any customer known to him to be a customer of Tesco.

The Employee shall not (either during his employment hereunder or at any time thereafter) disclose the private affairs of Tesco or any confidential information of Tesco to any persons other than the directors of Tesco and shall not (either during his employment hereunder or at any time thereafter) use for his own purposes or for any purpose other than those of Tesco any information he may acquire in relation to the business and affairs of Tesco.

Any and all inventions and improvements thereto which the Employee may conceive or make during the term of his employment hereunder relating to or directly connected with any of the matters which are from time to time the subject of investigations by Tesco or its affiliates shall be the sole and exclusive property of Tesco and the Employee will, whenever so requested by Tesco, execute any and all applications, assignments and other instruments which Tesco shall deem necessary in order to apply for and obtain registered proprietary rights for such inventions and improvements and in order to assign and convey to Tesco the sole and exclusive right, title and interest in and to the said inventions and improvements. Such obligation of the Employee shall continue beyond the termination of the term of his employment with Tesco and its affiliates with respect to any and all inventions and improvements conceived or made by him during the term of such employment and such obligation shall be binding upon the assigns, executors, administrators and other legal representatives of the Employee.

The Employee shall perform the services he is to render to Tesco pursuant hereto at the offices from time to time of Tesco in the City of Calgary in the Province of Alberta or such other place as the Employee and Tesco may from time to time agree upon.

In conducting his duties under this Agreement, the Employee shall report to the President and Chief Executive Officer of Tesco, and shall act consistently with the directions of such officer.

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The Employee shall be entitled to participate in all other benefits of employment generally available to members of Tesco’s management when and as he becomes eligible therefor, including, without limitation:

Tesco shall be entitled to terminate this Agreement and the Employee’s employment with Tesco:

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The Employee shall be entitled to terminate this Agreement and his employment with Tesco within but not after six months following any one of the following events:

If the Employee chooses to terminate this Agreement upon the occurrence of any one of such events, the Employee shall be entitled to receive, within 12 months following the effective date of this agreement the Employee shall be entitled to receive, within 30 days after the date of termination, a sum of money equal to the Employee’s aggregate salary for the 12 months immediately preceding termination, less applicable deductions. The parties agree that, because there can be no exact measure of the damages which would occur to the Employee as a result of termination of employment, such payment shall be deemed to constitute liquidated damages and not a penalty and Tesco agrees that the Employee shall not be required to mitigate his damages.

If the Employee shall be prevented, during the period of employment hereunder, from properly performing services hereunder by reason of illness or other physical or mental incapacity for a period of more than 120 days in the aggregate in any 12 month period, the Employee’s salary payable hereunder shall be paid to the last day of the month in which the 120^th day of incapacity occurs, and thereafter Tesco’s obligations hereunder shall cease and terminate.

Time shall be of the essence of this Agreement.

This Agreement terminates, cancels and supersedes any and all of the written and verbal agreements between the parties hereto relating to the subject matter hereof.

This Agreement contains the entire agreement between the parties hereto and no amendment hereof shall be binding upon the parties hereto unless the same is in writing signed by all parties hereto.

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Each of the parties will, from time to time and at all times hereafter, at the request of other, but without further consideration, do such further acts and deliver all such further assurances, deeds and documents as shall be reasonably required in order to fully perform and carry out the terms of this Agreement.

This Agreement shall bind each of the parties hereto, their estates and their respective legal representatives, executors, administrators, trustees, receivers, receiver-managers, successors and permitted assigns.

In this Agreement, words importing the masculine gender include the feminine gender and vice versa.

The address for service of the parties hereto shall be as follows:

Either of the parties hereto may from time to time change their address for service herein by giving written notice thereof to the other party hereto. Any notice may be served by mailing the same by registered prepaid post in a properly addressed envelope addressed to the other party hereto at such party’s address for service hereunder. Any notice so served shall be deemed to be given to and received by the addressee on the second day (excepting Saturdays, Sundays, statutory holidays and days upon which postal service in Canada is interrupted) after the mailing thereof.

The Agreement herein shall, in all respects, be subject to and be interpreted, construed and enforced in accordance with the laws in effect in the Province of Alberta. Each party hereto accepts the jurisdiction of the courts of the Province of Alberta and all courts of appeal therefrom.

The headings of clauses herein are inserted for convenience of reference only and shall not affect or be considered to affect the provisions hereof.

If any covenant or provision of this Agreement is determined to be void or unenforceable in whole or in part, it shall not be deemed to affect or impair the validity of any other covenant or provision of this Agreement.

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Employee’s rights and obligations under this Agreement shall not be transferable by assignment or otherwise, and any purported assignment, transfer, or delegation thereof shall be void. Nothing in this Agreement shall prevent the consolidation of Tesco with, or its merger into, any other corporation, or the sale by Tesco of all or substantially all of its properties or assets, or the assignment by Tesco of this Agreement and the performance of its obligations hereunder to any affiliated company; and this Agreement shall, subject to the provisions of this paragraph 21, enure to the benefit of, and be enforceable by, Employee and any corporate successor to, or assignee of Tesco.

IN WITNESS WHEREOF the parties hereto have executed this Agreement effective as of the day and year first above written.

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