Document:

Exhibit 10.5

Exhibit 10.5

EXECUTIVE EMPLOYMENT AGREEMENT

This Executive Employment Agreement, dated effective as of August 1, 2010, is between Allis-Chalmers Directional
Drilling Services LLC (the “Company”) and David K. Bryan (“Executive”).

R E C I T A L S:

A. Executive’s previous Employment Agreement with the Company terminated on July 1, 2010;

B. The Company wishes to continue to employ Executive, and Executive desires to continue employment with Company
by entering into a written agreement to specify the terms and conditions of Executive’s continued and future employment
with the Company;

C. Executive is to be employed as President and Chief Executive Officer of the Company;

D. Allis-Chalmers Energy Inc. (“Allis-Chalmers”) considers the maintenance of a sound management team for the
Company, including Executive, essential to protecting and enhancing its best interests and those of its stockholders;

E. Allis-Chalmers recognizes that the possibility of and potential for a “Change in Control,” as defined herein,
may result in the departure or distraction of members of the Company’s management team, to the detriment of the Company
and its stockholders; and

F. Allis-Chalmers has determined that appropriate steps should be taken to obtain and retain the continued
attention and dedication of certain selected members of the Company’s management team to their assigned duties without
the distraction arising from the possibility of a change in control of Allis-Chalmers.

NOW, THEREFORE, in consideration of Executive’s past and future employment with Company and other good and
valuable consideration, the parties agree as follows:

Section 1. Definitions. As used in this Agreement, the following terms will have the following meanings:

(a) Agreement refers to this Executive Employment Agreement.

(b) Allis-Chalmers means Allis-Chalmers Energy Inc.

(c) Board of Directors means the board of directors of the Company.

(d) Cause has the meaning ascribed to it in Section 7(a)(ii).

(e) Change in Control means:

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(i) The acquisition after the date hereof by any individual, entity or group, or a Person
(within the meaning of Section 13(d)(3) of the Securities Exchange Act of 1934, as amended), in each
case, other than an Excluded Person, of ownership of a majority of either: (i) the then outstanding
 shares of Common Stock (“Outstanding Common Stock”) of Allis-Chalmers; or (ii) the combined voting
power of the then outstanding voting securities of Allis-Chalmers entitled to vote generally in the
election of directors (“Outstanding Voting Securities”);

(ii) Approval by the stockholders of Allis-Chalmers of a reorganization, merger or
consolidation, in each case, unless, either (1) immediately following such reorganization, merger or
consolidation, a majority of the then outstanding shares of common voting securities of the entity
resulting from such reorganization, merger or consolidation and a majority of the combined voting
power of the then outstanding voting securities of such entity entitled to vote generally in the
election of directors (or similar governing persons) are then beneficially owned, directly or
indirectly, by all or substantially all of the individuals and entities who were the beneficial
owners of the Outstanding Common Stock and Outstanding Voting Securities, respectively, immediately
prior to such reorganization, merger or consolidation, or (2) a majority of the members of the board
of directors (or similar governing body) of the entity resulting from such reorganization, merger
or consolidation were members of the Board of Directors at the time of the execution of the initial
agreement providing for such reorganization, merger or consolidation; or

(iii) Approval by the stockholders of Allis-Chalmers of a complete liquidation or dissolution
of Allis-Chalmers;

(iv) The sale or other disposition of all or substantially all of the assets of Allis-Chalmers
and its subsidiaries taken as a whole, other than by way of a merger or consolidation and other than
to a third party, with respect to which following such sale or other disposition, a majority of the
then outstanding shares of common stock of such third party and a majority of the combined voting
power of the then outstanding voting securities of such third party entitled to vote generally in
the election for directors (or similar governing persons) are then beneficially owned, directly or
indirectly, by all or substantially all of the individuals and entities who were the beneficial
owners of the Outstanding Common Stock and Outstanding Voting Securities, respectively, immediately
prior to such sale or other disposition.

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Notwithstanding the foregoing, in any circumstance in which the foregoing definition of “Change in Control”
would be operative and with respect to which the income tax under Section 409A of the Code would apply or be
imposed, but where such tax would not apply or be imposed if the meaning of the term “Change in Control” met
the requirements of Section 409A(a)(2)(A)(v) of the Code, then the term “Change in Control” herein shall mean,
but only with respect to the transaction and the compensation so affected, a transaction or related
transactions that constitute a “Change in Control” (as defined above) and that also constitute a “change in
control event” within the meaning of Treas. Reg. §1.409A–3(i)(5).

(f) Code means the Internal Revenue Code of 1986, as amended.

(g) Common Stock means the common stock, $.01 par value of Allis-Chalmers.

(h) Company means Allis-Chalmers Directional Drilling Services LLC., including any successor to Allis-Chalmers
Directional Drilling Services LLC.

(i) Confidential Information has the meaning ascribed to it in Section 9(b).

(j) Constructive Termination means the termination of Executive’s employment with the Company by
resignation if:

(i) a Good Reason occurs or exists,

(ii) Executive gives written notice to the Company of that Good Reason within ninety (90) days
of its initial occurrence or existence (or the date Executive becomes aware of such Good Reason, if
later),

(iii) the Company fails to cure that Good Reason within thirty (30) days of the date of
Executive’s written notice of the Good Reason, and

(iv) Executive resigns from the employment of the Company and,

(1) where the Good Reason is defined in Section 1(n)(i) and such Good Reason occurs
within 6 months after a Change in Control, the effective date of such resignation is after
(but not more than 6 months after) the end of the 30-day cure period referred to in Section
1(j)(iii), and (unless otherwise agreed to in writing by Executive and Company) no sooner
than 6 months after the date of a Change in Control and

(2) in all other cases, the effective date of such resignation is, after (but not more
than 6 months after) the end of the 30-day cure period referred to in Section 1(j)(iii).

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(k) Disability with respect to Executive shall be deemed to exist if the Executive either (i) is unable
to engage in any substantial gainful activity by reason of any medically determinable physical or mental
impairment that can be expected to result in death or can be expected to last for a continuous period of not
less than 12 months, or (ii) is, by reason of any medically determinable physical or mental impairment that
can be expected to result in death or can be expected to last for a continuous period of not less than 12
months, receiving income replacement benefits for a period of not less than three months under an accident and
health plan covering employees of the Company.

(l) Executive refers to David K. Bryan.

(m) Excluded Person means any Person who beneficially owns more than 10% of the outstanding shares of
Allis-Chalmers at any time prior to the date hereof.

(n) Good Reason means, with respect to a Constructive Termination, any of the following to which the
Executive did not consent in writing:

(i) the Company demotes or assigns Executive to a lesser position, as measured by title,
responsibility, prestige, authority or duties, that is not consistent with the highest position held by
Executive with Company at any time during Executive’s employment with Company after the date hereof, or
any action or inaction, which results in a diminution in such position, authority, duties or
responsibilities;

(ii) the Company decreases Executive’s compensation, or any element thereof, below the highest
level in effect at any time during Executive’s employment with Company or reduces Executive’s
benefits and perquisites below the highest levels in effect at any time during Executive’s employment
with Company (other than as a result of any routine amendment or termination of any executive, group,
or other benefit plan or program, which amendment or termination is applicable to all participants in
said plan or program);

(iii) the Company requires Executive to relocate to a principal place of business more than 50
miles from the principal place of business occupied by Company on the date hereof; or

(iv) the Company breaches any other material term of this Agreement.

(o) Inventions has the meaning ascribed to it in Section 8(a).

(p) Salary has the meaning ascribed to it in Section 5(a).

(q) Separation Payment Period means the period of one year following the date of the Executive’s
Termination of employment pursuant to Section 7(a)(iii), unless such termination occurs within the 18-month
period beginning on the date of a Change in Control, in which case it means two years following the date of
such termination.

(r) Separation Payments has the meaning ascribed to it in Section 7(b)(ii).

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Section 2. Employment. Company hereby employs Executive, and Executive hereby accepts employment by Company, upon
the terms and subject to the conditions hereinafter set forth.

Section 3. Duties. Executive shall be employed as the President and Chief Executive Officer of the Company and
shall report directly to the Chief Executive Officer, Chief Operating Officer or Senior Vice President-Oilfield
Services of the Company. Executive agrees to devote substantially all of his business time as is necessary to perform
his duties attendant to his executive position with Company. Executive shall be allowed to engage in other activities
as an investor as well as participate in activities of charitable organizations of his choice so long as they do not
materially interfere with his duties for Company.

Section 4. Term. The term of employment of Executive hereunder shall commence on the date of this Agreement and
shall terminate at 11:59 p.m. on August 1, 2012; unless previously terminated under Section 7 of this Agreement, or
unless said term is extended, in writing, by the Executive and Company.

Section 5. Compensation and Benefits. In consideration for the services of Executive hereunder, Company shall
compensate Executive as follows (except as set forth herein, Executive acknowledges payment in full of all amounts due
to him for services rendered prior to the date hereof):

(a) Salary. Company shall pay Executive, semi-monthly in arrears with its normal payroll procedures, a
salary which is equivalent to an annual rate of $262,500.00 per annum less applicable statutory deductions
and withholdings (the “Salary”) payable in accordance with the Company’s regular payroll procedures currently
in effect. Any increase in the Salary shall be in the sole discretion of the Compensation Committee.

(b) Incentive Bonus. Executive shall be entitled to receive such cash incentives as the Compensation
Committee and Board of Directors establishes for executives of the Company. Executive shall also be eligible
to receive from Company such other annual management incentive bonuses as may be provided in management
incentive bonus plans adopted from time to time by Company.

(c) Vacation. Executive shall be entitled to four (4) weeks paid vacation per year. Unless otherwise
approved by the Chief Executive Officer, Chief Operating Officer or Senior Vice President-Oilfield, a maximum
of ten days accrued vacation not taken in any calendar year shall be carried forward and may be used in the
next subsequent calendar year. Executive shall schedule his paid vacation to be taken at times which are
reasonably and mutually convenient to both Company and Executive.

(d) Insurance Benefits. Company shall provide accident, health, dental, disability and life insurance
for Executive under the group accident, health, dental, disability and life insurance plans as may be
maintained by Company for its full-time, salaried Executives.

(e) Car Allowance. The Executive will be paid a $1,000 per month car allowance during the term of this
Agreement.

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Section 6. Expenses. The parties recognize and anticipate that in connection with the services to be performed by
Executive pursuant to the terms of this Agreement, Executive may incur and be required to make payments for travel,
entertainment of business associates and similar expenses. Company shall reimburse Executive for all reasonable
expenses of types authorized by Company and incurred by Executive in the performance of his duties hereunder,
consistent with past practices. Executive shall comply with such reporting requirements with respect to expenses as
Company may establish from time to time.

Section 7. Termination.

(a) General. Executive’s employment hereunder shall commence on the Effective Date and continue until
the end of the term specified in Section 4, except that the employment of Executive hereunder shall terminate
prior to such time in accordance with the following:

(i) Death or Disability. Upon the death of Executive during the term of his employment
hereunder; or, at the option of Company, in the event of Executive’s Disability, upon 30 days’ notice
to Executive.

(ii) For Cause. For “Cause” immediately upon written notice by Company to Executive. A
termination for Cause shall mean a termination because of: (i) an act of material dishonesty, fraud,
misrepresentation, misappropriation, or embezzlement by Executive involving Allis-Chalmers or the
Company or its property or employees; (ii) Executive’s unauthorized, material and intentional or
grossly negligent use or disclosure of any confidential information or trade secrets of
Allis-Chalmers or the Company; (iii) any material violation by Executive of a substantive law or
regulation applicable to Allis-Chalmers or the Company’s business, which violation, in the sole but
reasonable discretion of the Board of Directors, does or is reasonably like to cause material injury
to Allis Chalmers; (iv) Executive’s conviction of, or plea of nolo contendere or guilty to a felony
or any other crime which involves moral turpitude; (v) Executive’s continued failure, in the sole but
reasonable discretion of the Board of Directors, to perform the principal duties, functions and
responsibilities of his position (other than any such failure resulting from Executive’s Disability),
or to follow the directives of the Board of Directors, after written notice from the Company
identifying the deficiencies in performance and a reasonable cure period of not less than thirty (30)
days of any breach capable of cure; (vi) gross negligence or willful misconduct in the performance of
Executive’s duties; or (vii) a material and willful breach of Executive’s fiduciary duties to
Allis-Chalmers or the Company.

 
(iii) Without Cause. Without Cause upon notice by the Board of Directors to Executive or upon
notice by Executive to the Board of Directors if Executive’s employment has been terminated by
Constructive Termination.

(iv) Resignation. Resignation by the Executive.

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(b) Separation Pay.

(i ) Termination Upon Death or Disability For Cause or by Resignation. Executive shall not be
entitled to any separation pay or other compensation upon termination of his employment pursuant to
Section 7(a)(i), (ii) or (iv) except for his Salary and any incentive compensation earned but unpaid
as of the date of termination, unpaid expense reimbursements under Section 6 for expenses incurred in
accordance with the terms hereof prior to termination, and compensation for accrued, unused vacation
as of the date of termination all of which shall be paid to the Executive within 30 days of the date
of termination.

(ii) Termination Without Cause. In the event Executive’s employment hereunder is terminated
pursuant to Section 7(a)(iii), Company shall pay Executive Separation Payments as Executive’s sole
remedy in connection with such termination. “Separation Payments” are payments made at the
semi-monthly rate of Executive’s then current salary, including car allowance, in effect immediately
preceding the date of termination. Separation Payments shall be paid by Company in equal
semi-monthly payments in arrears or in accordance with its then-current normal payroll procedure for
the duration of the Separation Payment Period. Company shall also pay Executive his Salary and any
incentive bonus compensation earned but unpaid as of the date of termination, unpaid expense
reimbursements under Section 6 for expenses incurred in accordance with the terms hereof prior to
termination, all of which shall be paid to the Executive within 30 days of the date of termination.
In addition, Executive and/or his or her qualified beneficiaries shall continue to receive health
benefits and coverage under the Company’s group health care plan or such other equivalent health
coverage Executive may agree. Such coverage shall be provided on the foregoing terms for the
duration of the Separation Payment Period.

(c) Section 409A Matters.

(i) Section 409A Limits on Payments to Specified Employees. Notwithstanding any other provision
of the Agreement to the contrary, if Executive is a “specified employee,” as defined in Section 409A
of the Code, except to the extent permitted under Section 409A of the Code, no benefit or payment
that is subject to Section 409A of the Code (after taking into account all applicable exceptions to
Section 409A of the Code, including but not limited to the exceptions for short-term deferrals and
for “separation pay only upon an involuntary separation from service”) shall be made under this
Agreement on account of Executive’s “separation from service,” as defined in Section 409A of the
Code, until the later of the date prescribed for payment in this Agreement and the 1st day of the 7th
calendar month that begins after the date of Executive’s separation from service (or, if earlier, the
date of death of Executive). Any such benefit or payment payable pursuant to this Agreement within
the period described in the immediately preceding sentence will accrue and will be payable in a lump
sum cash payment, without interest, on the payment date set forth in the immediately preceding
sentence.

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(ii) References to termination. All references in this Agreement to the termination of
Executive’s employment with Company shall mean and shall be deemed to occur if and when a termination
of employment that constitutes a “separation from service” within the meaning of Section
409A(a)(2)(A)(i) of the Code and applicable administrative guidance issued thereunder has occurred.

(iii) Special rules for reimbursements. To the extent that any amount or benefit hereunder is
includable in gross income for federal income tax purposes and constitutes or is treated hereunder as
a reimbursement received or to be received by Executive, such reimbursement shall be administered
consistently with the following additional requirements as set forth in Treas. Reg.
§1.409A-3(i)(1)(iv): (1) Executive’s eligibility for or receipt of benefits or reimbursements in one
year will not affect Executive’s eligibility for or the amount of benefits or reimbursements in any
other year, (2) any reimbursement of eligible expenses will be made on or before the last day of the
year following the year in which the expense was incurred, (3) Executive’s right to benefits or
reimbursement is not subject to liquidation or exchange for another benefit, and (4) the right to
reimbursement of expenses incurred or to the provision of benefits in kind shall terminate one year
from the Executive’s termination of employment.

(iv) Constructive Termination. The Company and the Executive acknowledge and agree that the
definitions of Good Reason and Constructive Termination and the provisions of this Agreement relating
thereto are intended to comply, and shall be interpreted and administered so as to comply, with the
requirements of Treas. Reg. §1.409A-1(n)(2)(i).

Section 8. Inventions; Assignment.

(a) Inventions Defined. All rights to discoveries, inventions, improvements, designs and innovations
(including all data and records pertaining thereto) that relate to the business of Company, whether or not
patentable, copyrightable or reduced to writing, that Executive may discover, invent or originate during the
term of his employment hereunder, and for a period of six months thereafter, either alone or with others and
whether or not during working hours or by the use of the facilities of Company (“Inventions”), shall be the
exclusive property of Company. Executive shall promptly disclose all Inventions to Company, shall execute at
the request of Company any assignments or other documents Company may deem necessary to protect or perfect its
rights therein, and shall assist Company, at Company’s expense, in obtaining, defending and enforcing
Company’s rights therein. Executive hereby appoints Company as his attorney-in-fact to execute on his behalf
any assignments or other documents deemed necessary by Company to protect or perfect its rights to any
Inventions.

(b) Covenant to Assign and Cooperate. Without limiting the generality of the foregoing, Executive hereby
assigns and transfers to Company the world-wide right, title and interest of Executive in the Inventions.
Executive agrees that Company may apply for and receive patent rights (including Letters Patent in the United
States) for the Inventions in Company’s name in such countries as may be determined solely by Company.
Executive shall communicate to Company all facts known to Executive relating to the Inventions and shall
cooperate with Company’s reasonable requests in connection with vesting title to the Inventions and related
patents exclusively in Company and in connection with obtaining, maintaining and protecting Company’s
exclusive patent rights in the Inventions.

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Successors and Assigns. Executive’s obligations under this Section 8 shall inure to the benefit of
Company and its successors and assigns and shall survive the expiration of the term of this Agreement for such
time as may be necessary to protect the proprietary rights of Company in the Inventions. In addition to any
obligations imposed by law upon any successor to the Company, the Company will require any successor to all or
substantially all of the Company’s business and/or assets to expressly assume and agree to perform this
Agreement in the same manner and to the same extent that the Company would be required to perform it if no
such successor had taken place.

Section 9. Confidential Information.

(a) Acknowledgment of Proprietary Interest. Executive acknowledges the proprietary interest of Company
in all Confidential Information. Executive agrees that all Confidential Information learned by Executive
during his employment with Company or otherwise, whether developed by Executive alone or in conjunction with
others or otherwise, is and shall remain the exclusive property of Company. Executive further acknowledges
and agrees that his disclosure of any Confidential Information will result in irreparable injury and damage to
Company.

(b) Confidential Information Defined. “Confidential Information” means all confidential and proprietary
information of Company, including without limitation (i) information derived from reports, investigations,
experiments, research and work in progress, (ii) methods of operation, (iii) market data, (iv) proprietary
computer programs and codes, (v) drawings, designs, plans and proposals, (vi) marketing and sales programs,
(vii) client lists, (viii) historical financial information and financial projections, (ix) pricing formulae
and policies, (x) all other concepts, ideas, materials and information prepared or performed for or by Company
and (xi) all information related to the business, products, purchases or sales of Company or any of its
suppliers and customers, other than information that is publicly available.

(c) Covenant Not To Divulge Confidential Information. Company is entitled to prevent the disclosure of
Confidential Information. Company agrees to and has provided Confidential Information to Executive since
Executive’s employment with the Company and Executive acknowledges and agrees that, during the course of his
employment, Executive will be exposed to, have access to, and gain knowledge of Confidential Information. As
a portion of the consideration for the employment of Executive and for the compensation being paid to
Executive by Company, Executive agrees at all times during the term of his employment hereunder and thereafter
to hold in strict confidence and not to disclose or allow to be disclosed to any person, firm or corporation,
other than to his professional advisors (who have the obligation to maintain the confidentiality of such
information) and to persons engaged by Company to further the business of Company, and not to use except in
the pursuit of the business of Company, the Confidential Information, without the prior written consent of
Company.

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(d) Return of Materials. In the event of any termination or cessation of his employment with Company for
any reason, or request by the Company at anytime, Executive shall promptly deliver to Company all documents,
data and other information derived from or otherwise pertaining to Confidential Information. Executive shall
not take or retain any documents or other information, or any reproduction or excerpt thereof, containing or
pertaining to any Confidential Information.

Section 10. Noncompetition.

(a) Executive understands that the Confidential Information and Executive’s work and experience with
Company has and will continue to enhance Executive’s value not only to Company, but also to its competitors,
and that the nature of the Confidential Information to which Executive shall and will have access will make it
difficult, if not impossible, for Executive to work for a competitor or for any other company which competes
with the Company’s business, and for whom Executive, while employed by Company, has performed services within
twenty four months prior to the date of Executive’s termination without disclosing or utilizing the
Confidential Information to which he has had access during the course of Executive’s employment. Executive
further acknowledges and agrees that Company’s agreement to impart to and to provide Executive with access to
its Confidential Information is ancillary to and contingent upon Executive’s agreement and that he will not
during Executive’s employment and for a period of two years immediately following Executive’s last day of
employment with Company or two years from the date of any court order enforcing all or part of this Agreement,
whichever is later (the “Non-Compete Period”):

(i) carry on, initiate or have any ownership interest (directly or indirectly) in any business
that services, or distributes services similar to those of Company or its affiliates, successors or
assigns or that otherwise competes with Company or its affiliates, successors or assigns provided
that this provision shall not apply to the ownership by Executive of less than 5% of a class of
publicly traded equity securities;

(ii) become employed by, derive benefit from or otherwise provide services for compensation
(whether as an owner, partner, consultant, employee or otherwise) or divert Company’s business to any
person or entity that is a Major Competitor (as defined below) of Company or its affiliates,
successors or assigns, or any other business in which Company maintains customers or engages in
business and for whom Executive, while employed by Company, has performed services within twenty four
months prior to the date of Executive’s separation; or

(iii) contact, solicit, or divert (directly or indirectly), for the purpose of attempting to
enter into a business relationship related to the distribution or services provided by Company or its
subsidiaries, affiliates, successors or assigns any customer with whom Company has had a contractual
relationship during the two year period prior to Executive’s last day of employment with Company.

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Notwithstanding the following, in the event that Executive is terminated without Cause or by
Constructive Termination within the 18 month period following the date of a Change in Control, then
the provisions of this Section 10 shall not apply to Executive.

(b) Company’s business includes, without limitation, horizontal, directional and measurement while
drilling services to the oil and gas industry. This description of the business, both actual and intended,
is not intended to be limiting. The business will continue to grow and evolve and the range of services and
the ways of providing services will continue to be enhanced and supplemented.

(c) If any part of this provision is held unenforceable or invalid, the remaining parts thereof shall
continue to be enforceable.

(d) Executive acknowledges and agrees that Executive’s signing of and compliance is a condition of
Executive’s employment. Executive acknowledges and agrees that the scope of this Agreement and promises
herein are reasonable as to time, area and scope of activity restrained and are necessary to protect Company’s
legitimate business interests. Specifically, Executive has considered this Agreement and the promises
Executive has made in light of the benefits that Executive has and will continue to obtain and has concluded
that the promises and agreements leave Executive with a reasonable number and variety of permitted avenues for
engaging in employment in a number of locations and a number of occupations during the period of restriction.
If the provisions of this Section 10 pertaining to time, geographic area, and scope are deemed unenforceable
by a court of competent jurisdiction, then such provision shall include the maximum time, geographic area, and
scope which a court of competent jurisdiction determines to be reasonable, valid, and enforceable. To the
extent that the court permits bluepenciling of the non-competition agreement, the parties intend that the
court will take all action necessary to revise it and those provisions necessary to it so as to create a
binding and enforceable provision.

(e) Major Competitor shall include, without limitation, (i) all entities which are in the same or a
similar business to that of Company, its affiliates, successors or assigns and/or which offer a service and/or
product the same or similar to any service and/or product offered or in the process of being developed or
offered by Company, its subsidiaries, affiliates, successors or assigns and (ii) all of the following entities
and their respective successors in interest:

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Baker Hughes Inteq;

Schlumberger (Anadrill);

Pathfinder;

Scientific Drilling;

Weatherford International

Section 11. General.

(a) Notices. All notices and other communications hereunder shall be in writing or by written
telecommunication, and shall be deemed to have been duly given upon delivery if delivered personally or via
written telecommunication, or five days after mailing if mailed by certified mail, return receipt requested or
by written telecommunication, to the relevant address set forth below, or to such other address as the
recipient of such notice or communication shall have specified to the other party in accordance with this
Section 11(a):

If to Company, to:

c/o Allis-Chalmers Energy Inc.

5075 Westheimer, Suite 890

Houston, Texas 77056

Attention: General Counsel

If to Executive, to the last address for Executive appearing on the Company’s records

(b) Withholding. All payments required to be made to Executive by Company under this Agreement shall be
subject to the withholding of such amounts, if any, relating to federal, state and local taxes as may be
required by law.

(c) Equitable Remedies. Each of the parties hereto acknowledges and agrees that upon any breach by
Executive or Company of his or its obligations hereunder, Company shall have no adequate remedy at law and
accordingly shall be entitled to specific performance and other appropriate injunctive and equitable relief.

(d) Severability. If any provision of this Agreement is held to be illegal, invalid or unenforceable,
such provision shall be fully severable, and this Agreement shall be construed and enforced as if such
illegal, invalid or unenforceable provision never comprised a part hereof, and the remaining provisions hereof
shall remain in full force and effect and shall not be affected by the illegal, invalid or unenforceable
provision or by its severance herefrom. Furthermore, in lieu of such illegal, invalid or unenforceable
provision, there shall be added automatically as part of this Agreement a provision as similar in its terms to
such illegal, invalid or unenforceable provision as may be possible and be legal, valid and enforceable.

(e) Waivers. No delay or omission by either party in exercising any right, power or privilege hereunder
shall impair such right, power or privilege, nor shall any single or partial exercise of any such right, power
or privilege preclude any further exercise thereof or the exercise of any other right, power or privilege.

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(f) Counterparts. This Agreement may be executed in multiple counterparts, each of which shall be
deemed an original, and all of which together shall constitute one and the same instrument.

(g) Captions. The captions in this Agreement are for convenience of reference only and shall not limit
or otherwise affect any of the terms or provisions hereof.

(h) Reference to Agreement. Use of the words “herein,” “hereof,” “hereto,” “hereunder” and the like in
this Agreement refer to this Agreement only as a whole and not to any particular section or subsection of this
Agreement, unless otherwise noted.

(i) Binding Agreement. This Agreement shall be binding upon and inure to the benefit of the parties and
shall be enforceable by the personal representatives and heirs of Executive and the successors and assigns of
Company. This Agreement may be assigned by the Company to any successor to all or substantially all of the
Company’s business as a result of a merger, consolidation, sale of stock or assets, or similar transaction;
provided that in the event of any such assignment, the Company shall remain liable for all of its obligations
hereunder and shall be liable for all obligations of all such assignees hereunder. The Company will require
any successor to expressly assume and agree to perform this Agreement in the same manner and to the same
extent that the Company would be required to perform it if no such succession had taken place. If Executive
dies while any amounts would still be payable to him hereunder, such amounts shall be paid to Executive’s
estate. This Agreement is not otherwise assignable by Executive.

(j) Entire Agreement. This Agreement contains the entire understanding of the parties, supersedes all
prior agreements and understandings relating to the subject matter hereof and may not be amended except by a
written instrument hereafter signed by each of the parties hereto.

(k) Governing Law. This Agreement and the performance hereof shall be construed and governed in
accordance with the laws of the State of Texas, without regard to its choice of law principles.

(l) Venue. Any dispute between Executive and Company that arises out of or concerns, in whole or in
part, this Agreement or the employment relationship between Executive and Company shall be exclusively
resolved in a federal or state court located in Harris County, Texas. To the extent necessary, Executive and
Company agree to submit to the jurisdiction of such courts, and to waive any objection to such jurisdiction or
venue.

(m) Gender and Number. The masculine gender shall be deemed to denote the feminine or neuter genders,
the singular to denote the plural, and the plural to denote the singular, where the context so permits.

[signature page follows]

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13

 

EXECUTED August 11, 2010, and effective as of the date and year first above written.

ALLIS-CHALMERS DIRECTIONAL

DRILLING SERVICES LLC

By /s/ Theodore F. Pound III                  

Theodore F. Pound III

Vice President & Secretary

EXECUTIVE

/s/ David K. Bryan                                   

 David K. Bryan

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14exv10w1

Exhibit 10.1

FIRST AMENDMENT

TO THE

AMENDED AND RESTATED PACTIV CORPORATION

CHANGE-IN-CONTROL SEVERANCE BENEFIT PLAN FOR KEY EXECUTIVES

Adopted as of August 15, 2010

WHEREAS, Pactiv Corporation (the “Company”) adopted the Amended and Restated Pactiv
Corporation Change-in-Control Severance Benefit Plan for Key Executives effective November 4, 1999,
which plan was subsequently amended and restated as of March 1, 2005, December 29, 2006, and March
27, 2009 (the “Plan”);

WHEREAS, Article 4 of the Plan provides, among other benefits, for the following benefit (the
“Option Benefit”):

“Stock Options and Stock Appreciation Rights shall remain exercisable for
the lesser of thirty-six (36) months from the date of Change in Control or
termination, as applicable, or the remaining life of the Stock Option or the
Stock Appreciation Right.”

WHEREAS, the Board of Directors of the Company (the “Board”) is currently considering the
terms of a proposed agreement and plan of merger (the “Proposed Merger Agreement”) to be
entered into by and among Rank Group Limited, a company organized under the laws of New Zealand,
Reynolds Group Holdings Limited, a company organized under the laws of New Zealand
(“Parent”), Reynolds Acquisition Corporation, a Delaware corporation and indirect
wholly-owned subsidiary of Parent (“Merger Sub”), and the Company, which provides for the
merger of Merger Sub with and into the Company, with the Company continuing as the surviving
corporation (the “Merger”), whereby each share of the Company’s common stock, par value
$0.01 per share (each, a “Share”), issued and outstanding immediately prior to the
Effective Time (as defined in the Proposed Merger Agreement) will, by virtue of the Merger and
without any action on the part of the holder thereof, be converted into the right to receive the
merger consideration set forth in the Proposed Merger Agreement (the “Merger
Consideration”);

WHEREAS, the Proposed Merger Agreement contemplates that each outstanding option, whether or not
vested or exercisable granted under the Company’s 2002 Incentive Plan or any other equity-based
compensation plan of the Company (each a “Company Option”) shall be canceled and converted
into a right to receive a cash payment equal to the product of (i) the excess, if any, of the
Merger Consideration over the exercise price per share of each such Company Option, multiplied by
(ii) the number of shares of Common Stock covered by such holder’s Company Option, with such
payment to be subject to applicable Tax withholding; and

WHEREAS, Article 8 of the Plan provides that the Plan may be terminated or amended at any time by
the Board prior to a Threatened Change-in-Control Period (as defined in the Plan).

NOW THEREFORE, the Plan is hereby amended to delete the Option Benefit in full, subject to the
execution of the Merger Agreement and the consummation of the Merger.

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