COMMERCIAL LEASE AGREEMENT
 
 This Commercial Lease Agreement (“Lease”) is made and effective November 1, 2005, by and between Kristra Investments, Ltd. (“Landlord”) and Tutor-Saliba Corporation (“Tenant”).
 
 Landlord is the owner of land and improvements commonly known and numbered as Assessors parcel number 0236-191-25-0-000, located on the northeast corner of Jarupa Avenue and Cherry Avenue in Fontana, California.
 
 Landlord desires to lease the Leased Premises to Tenant, and Tenant desires to lease the Leased Premises from Landlord for the term, at the rental and upon the covenants, conditions and provisions herein set forth.
 
 THEREFORE, in consideration of the mutual promises herein, contained and other good and valuable consideration, it is agreed:
 1.Term.
 A.    Landlord hereby leases the Leased Premises to Tenant, and Tenant hereby leases the same from Landlord, for an “Initial Term” beginning November 1, 2005 and ending October 31, 2006. Landlord shall use its best efforts to give Tenant possession as nearly as possible at the beginning of the Lease term. If Landlord is unable to timely provide the Leased Premises, rent shall abate for the period of delay. Tenant shall make no other claim against Landlord for any such delay.
 
 B. The Term shall automatically be extended at the rental set forth below and otherwise upon the same covenants, conditions and provisions as provided in this Lease unless otherwise agreed upon in writing by the parties to the Lease. After the Initial Term, either party may terminate the lease by providing 90 day notice in writing to the other party of such intent to terminate.
 
 2.Rental.
 A. Base Rent. Tenant shall pay to Landlord during the Initial Term rental of $480,000 per year, payable in installments of $40,000 per month (the “Base Rent”). Each installment payment shall be due in advance on the first day of each calendar month during the lease term to Landlord at 15901 Olden Street, Sylmar, California 91342 or at such other place designated by written notice from Landlord or Tenant. The rental payment amount for any partial calendar months included in teh lease term shall be prorated on a daily basis.
 
 B. Additional Rent.As used in this Lease, the term “rent” shall mean the Base Rent and additional rent, and the term “additional rent” shall mean Real Property Taxes, insurance premiums, and all other amounts payable by Tenant to Landlord pursuant to this Lease other than Base Rent. Where no other time is stated herein for payment, payment for any amount due from Tenant to Landlord hereunder shall be made within ten (10) days after Tenant's receipt of Landlord's invoice or statement therefor.
 
 C.    The rental for any renewal lease term, if created as permitted under this Lease, shall be the Base Rent of $480,000 per year payable in installments of $40,000 per month plus any applicable Additional Rent.
  3. Use.
 For equipment storage and vehicular parking in connection with Tenant's operations and related use in connection therewith. Notwithstanding the forgoing, Tenant shall not use the Leased Premises for the purposes of storing, manufacturing or selling any explosives, flammables or other inherently dangerous substance, chemical, thing or device.
 
 4. Sublease and Assignment.
 Tenant shall have the right without Landlord's consent, to assign this Lease to a corporation with which Tenant may merge or consolidate, to any subsidiary of Tenant, to any corporation under common control with Tenant, or to a purchaser of substantially all of Tenant's assets. Except as set forth above, Tenant shall not sublease all or any part of the Leased Premises, or assign this Lease in whole or in part without Landlord's consent, such consent not to be unreasonably withheld or delayed.
 
 5.    Repairs.
 During the Lease term, Tenant shall make, at Tenant's expense, all necessary repairs to the Leased Premises.
  6.    Alterations and Improvements.
 Tenant, at Tenant's expense, shall have the right following Landlord's consent to make additions, and improvements and replacements of and to all or any part of the Leased Premises from time to time as Tenant may deem desirable, provided the same are made in a workmanlike manner and utilizing good quality materials. Tenant shall have the right to place and install personal property, trade fixtures, equipment and other temporary installations in and upon the Leased Premises, and fasten the same to the premises. All personal property, equipment, machinery, trade fixtures and temporary installations, whether acquired by Tenant at the commencement of the Lease term or placed or installed on the Leased Premises by Tenant thereafter, shall remain Tenant's property free and clear of any claim by Landlord. Tenant shall have the right to remove the same at any time during the term of this Lease provided that all damage to the Leased Premises caused by such removal shall be repaired by Tenant at Tenant's expense.
  7.    Insurance.
 A.      If the Leased Premises is damaged by fire or other casualty resulting from any act or negligence of Tenant or any of Tenant's agents, employees or invitees, rent shall not be diminished or abated while such damages are under repair, and Tenant shall be responsible for the costs of repair not covered by insurance.
 B.      Landlord shall maintain extended coverage insurance on the Leased Premises in such amounts as Landlord shall deem appropriate. Tenant shall be responsible, at its expense, for fire and extended coverage insurance on all of its personal property, including removable trade fixtures, located in the Leased Premises.
 C.      Tenant and Landlord shall, each at its own expense, maintain a policy or policies of comprehensive general liability insurance with respect to the respective activities of each on the Leased Premises with the premiums thereon fully paid on or before due date, issued by and binding upon some insurance company approved by Landlord, such insurance to afford minimum protection of not less than $1,000,000 combined single limit coverage of bodily injury, property damage or combination thereof. Landlord shall be listed as an additional insured on Tenant's policy or policies of comprehensive general liability insurance, and Tenant shall provide Landlord with current Certificates of Insurance evidencing Tenant's compliance with this Paragraph. Tenant shall obtain the agreement of Tenant's insurers to notify Landlord that a policy is due to expire at least (10) days prior to such expiration. Landlord shall not be required to maintain insurance against thefts within the Leased Premises.
  9.    Utilities.
 Tenant shall pay all charges for water, sewer, gas, electricity, telephone and other services and utilities used by Tenant on the Leased Premises during the term of this Lease unless otherwise expressly agreed in writing by Landlord. In the event that any utility or service provided to the Leased Premises is not separately metered, Landlord shall pay the amount due and separately invoice Tenant for Tenant's pro rata share of the charges. Tenant shall pay such amounts within fifteen (15) days of invoice.
  10.    Signs.
 Following Landlord's consent, Tenant shall have the right to place on the Leased Premises, at locations selected by Tenant, any signs which are permitted by applicable zoning ordinances and private restrictions. Landlord may refuse consent to any proposed signage that is in Landlord's opinion too large, deceptive, unattractive or otherwise inconsistent with or inappropriate to the Leased Premises. Landlord shall assist and cooperate with Tenant in obtaining any necessary permission from governmental authorities or adjoining owners and occupants for Tenant to place or construct the foregoing signs. Tenant shall repair all damage to the Leased Premises resulting from the removal of signs installed by Tenant.
  11.    Entry.
 Landlord shall have the right to enter upon the Leased Premises at reasonable hours to inspect the same, provided Landlord shall not thereby unreasonably interfere with Tenant's business on the Leased Premises.
  12.    Damage and Destruction.
 Subject to Section 8 A. above, if the Leased Premises or any part thereof or any appurtenance thereto is so damaged by fire, casualty or structural defects that the same cannot be used for Tenant's purposes, then Tenant shall have the right within ninety (90) days following damage to elect by notice to Landlord to terminate this Lease as of the date of such damage. In the event of minor damage to any part of the Leased Premises, and if such damage does not render the Leased Premises unusable for Tenant's purposes, Landlord shall promptly repair such damage at the cost of the Landlord. In making the repairs called for in this paragraph, Landlord shall not be liable for any delays resulting from strikes, governmental restrictions, inability to obtain necessary materials or labor or other matters which are beyond the reasonable control of Landlord. Tenant shall be relieved from paying rent and other charges during any portion of the Lease term that the Leased Premises are inoperable or unfit for occupancy, or use, in whole or in part, for Tenant's purposes. Rentals and other charges paid in advance for any such periods shall be credited on the next ensuing payments, if any, but if no further payments are to be made, any such advance payments shall be refunded to Tenant. The provisions of this paragraph extend not only to the matters aforesaid, but also to any occurrence which is beyond Tenant's reasonable control and which renders the Leased Premises, or any appurtenance thereto, inoperable or unfit for occupancy or use, in whole or in part, for Tenant's purposes.
  15.    Default.
 If default shall at any time be made by Tenant in the payment of rent when due to Landlord as herein provided, and if said default shall continue for fifteen (15) days after written notice thereof shall have been given to Tenant by Landlord, or if default shall be made in any of the other covenants or conditions to be kept, observed and performed by Tenant, and such default shall continue for thirty (30) days after notice thereof in writing to Tenant by Landlord without correction thereof then having been commenced and thereafter diligently prosecuted, Landlord may declare the term of this Lease ended and terminated by giving Tenant written notice of such intention, and if possession of the Leased Premises is not surrendered, Landlord may reenter said premises. Landlord shall have, in addition to the remedy above provided, any other right or remedy available to Landlord on account of any Tenant default, either in law or equity. Landlord shall use reasonable efforts to mitigate its damages.
  16.   Quiet Possession.
 Landlord covenants and warrants that upon performance by Tenant of its obligations hereunder, Landlord will keep and maintain Tenant in exclusive, quiet, peaceable and undisturbed and uninterrupted possession of the Leased Premises during the term of this Lease.
  17.   Condemnation.
 If any legally, constituted authority condemn the Leased Premises or such part thereof which shall make the Leased Premises unsuitable for leasing, this Lease shall cease when the public authority takes possession, and Landlord and Tenant shall account for rental as of that date. Such termination shall be without prejudice to the rights of either party to recover compensation from the condemning authority for any loss or damage caused by the condemnation. Neither party shall have any rights in or to any award made to the other by the condemning authority.
  18.   Subordination.
 Tenant accepts this Lease subject and subordinate to any mortgage, deed of trust or other lien presently existing or hereafter arising upon the Leased Premises, and to any renewals, refinancing and extensions thereof, but Tenant agrees that any such mortgagee shall have the right at any time to subordinate such mortgage, deed of trust or other lien to this Lease on such terms and subject to such conditions as such mortgagee may deem appropriate in its discretion. Landlord is hereby irrevocably vested with full power and authority to subordinate this Lease to any mortgage, deed of trust or other lien now existing or hereafter placed upon the Leased Premises, and Tenant agrees upon demand to execute such further instruments subordinating this Lease or attorning to the holder of any such liens as Landlord may request. In the event that Tenant should fail to execute any instrument of subordination herein required to be executed by Tenant promptly as requested, Tenant hereby irrevocably constitutes Landlord as its attorney-in-fact to execute such instrument in Tenant's name, place and stead, it being agreed that such power is one coupled with an interest. Tenant agrees that it will from time to time upon request by Landlord execute and deliver to such persons as Landlord shall request a statement in recordable form certifying that this Lease is unmodified and in full force and effect (or if there have been modifications, that the same is in full force and effect as so modified), stating the dates to which rent and other charges payable under this Lease have been paid, stating that Landlord is not in default hereunder (or if Tenant alleges a default stating the nature of such alleged default) and further stating such other matters as Landlord shall reasonably require.
  19.   Security Deposit.
 None.
 20.   Notice.
 Any notice required or permitted under this Lease shall be deemed sufficiently given or served if sent by United States certified mail, return receipt requested, addressed as follows:
 
 If to Landlord to:
 Kristra Investments, Ltd.
 25085 Ashley Ridge Road
 Hidden Hills, California 91302
 
 
 If to Tenant to:
 Tutor-Saliba Corporation
 15901 Olden Street
 Sylmar, California 91342
 
 
 Landlord and Tenant shall each have the right from time to time to change the place notice is to be given under this paragraph by written notice thereof to the other party.
 
 21.    Brokers.
 Tenant represents that Tenant was not shown the Premises by any real estate broker or agent and that Tenant has not otherwise engaged in, any activity which could form the basis for a claim for real estate commission, brokerage fee, finder's fee or other similar charge, in connection with this Lease.
 
 22.    Waiver.
 No waiver of any default of Landlord or Tenant hereunder shall be implied from any omission to take any action on account of such default if such default persists or is repeated, and no express waiver shall affect any default other than the default specified in the express waiver and that only for the time and to the extent therein stated. One or more waivers by Landlord or Tenant shall not be construed as a waiver of a subsequent breach of the same covenant, term or condition.
 
 23.    Memorandum of Lease.
 The parties hereto contemplate that this Lease should not and shall not be filed for record,
 but in lieu thereof, at the request of either party, Landlord and Tenant shall execute a Memorandum of Lease to be recorded for the purpose of giving record notice of the appropriate provisions of this Lease.
 
 24.    Headings.
 The headings used in this Lease are for convenience of the parties only and shall not be considered in interpreting the meaning of any provision of this Lease.
 
 25.    Successors.
 The provisions of this Lease shall extend to and be binding upon Landlord and Tenant and their respective legal representatives, successors and assigns.
 
 26.    Consent.
 Landlord shall not unreasonably withhold or delay its consent with respect to any matter for which Landlord's consent is required or desirable under this Lease.
  27.    Performance.
 If there is a default with respect to any of Landlord's covenants, warranties or representations under this Lease, and if the default continues more than fifteen (15) days after notice in writing from Tenant to Landlord specifying the default, Tenant may, at its option and without affecting any other remedy hereunder, cure such default and deduct the cost thereof from the next accruing installment or installments of rent payable hereunder until Tenant shall have been fully reimbursed for such expenditures, together with interest thereon at a rate equal to the lessor of twelve percent (12%) per annum or the then highest lawful rate. If this Lease terminates prior to Tenant's receiving full reimbursement, Landlord shall pay the unreimbursed balance plus accrued interest to Tenant on demand.
 
 28.    Compliance with Law.
 Tenant shall comply with all laws, orders, ordinances and other public requirements now or hereafter pertaining to Tenant's use of the Leased Premises. Landlord shall comply with all laws, orders, ordinances and other public requirements now or hereafter affecting the Leased Premises.
 
 29.    Final Agreement.
 This Agreement terminates and supersedes all prior understandings or agreements on the subject matter hereof. This Agreement may be modified only by a further writing that is duly executed by both parties.
 
 IN WITNESS WHEREOF, the parties have executed this Lease as of the day and year first above written.
 
 
 Kristra Investments, Ltd                                                                   Tutor-Saliba Corporation
 
 /s/John D. Barrett                                                                               /s/William B. Sparks
 
 By: John D. Barrett                                                                      By:  William B. Sparks
 V.P. Kristra Investments, Inc.                                                            Sr. Vice President
 General Partner
  FIRST AMENDMENT TO
 COMMERCIAL LEASE AGREEMENT DATED
 NOVEMBER 1, 2005
 
  This FIRST AMENDMENT TO THE COMMERCIAL LEASE AGREEMENT DATED NOVEMBER 1, 2005, ("Amendment") is made and entered into effective as of the 1st day of June, 2006, by and among Kristra Investments, Ltd. (Lessor) and Tutor-Saliba Corporation, a California corporation, (Lessee).
 
 The parties agree to extend the term of the lease to July 31, 2016.
 
 The monthly lease rate effective June 1, 2006, is One Hundred Thousand Dollars ($40,000) for the period of June 1, 2006 through June 30, 2007 for the property described in the Commercial Lease Agreement and shall increase at the rate of three percent (3%) per annum thereafter.
 
 Unless otherwise stated, all terms and conditions in this Amendment shall remain the same as stated in the Commercial Lease Agreement.
 
 IN WITNESS WHEREOF, the parties have executed this Amendment as of June 1, 2006.
 
 
 KRISTRA INVESTMENTS, LTD.
 Lessor
 
 
 By:  /s/Ronald N. Tutor
 
 TUTOR-SALIBA CORPORATION
 a California corporation
 Lessee
 
 
 By:  /s/William B. Sparks
 William B. Sparks
 Senior Vice President
 SECOND AMENDMENT TO
 COMMERCIAL LEASE AGREEMENT DATED
 NOVEMBER 1, 2005
 
 
 This SECOND AMENDMENT TO THE COMMERCIAL LEASE AGREEMENT DATED NOVEMBER 1, 2005, ("Amendment") is made and entered into effective as of the 1st day of August, 2008, by and among Kristra Investments, Ltd. (Lessor) and Tutor-Saliba Corporation, a California corporation, (Lessee).
 
 The parties agree to extend the term of the lease to July 31, 2016.
 
 The monthly lease rate effective August 1, 2008, is Sixty Thousand Dollars ($60,000) for the period of August 1, 2008 through July 31, 2009 for the property described in the Commercial Lease Agreement and shall increase at the rate of three percent (3%) per annum thereafter.
 
 Unless otherwise stated, all terms and conditions in this Amendment shall remain the same as stated in the Commercial Lease Agreement.
 
 IN WITNESS WHEREOF, the parties have executed this Amendment as of August 1, 2008.
 KRISTRA INVESTMENTS, LTD.
 Lessor
 
 
 By: /s/Ronald N. Tutor
 
 
 
 TUTOR-SALIBA CORPORATION
 A California corporation
 Lessee
 
 
 By:  /s/William B. Sparks
 William B. Sparks
 Senior Vice President