UNITED
STATES


SECURITIES
AND EXCHANGE COMMISSION


Washington,
D.C. 20549



















FORM
10-Q























(Mark
One)


x
            QUARTERLY
      REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF
      1934





For
the quarterly period ended March 31, 2008





OR




 ̈
            TRANSITION
      REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF
      1934





For
the transition period from
to





Commission
File Number 000-51471



















BRONCO
DRILLING COMPANY, INC.


(Exact
name of registrant as specified in its charter)






















Delaware
            
            20-2902156(State
      or other jurisdiction of
              incorporation
      or organization)
            
            (I.R.S.
      Employer
              Identification
      No.)





16217
North May Avenue


Edmond,
OK 73013


(Address
of principal executive offices) (Zip Code)





(405)
242-4444


(Registrant’s
telephone number, including area code)







Indicate
by check mark whether the registrant: (1) has filed all reports required to
be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934
during the preceding 12 months (or for such shorter period that the registrant
was required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days.    Yes x
    No  






Indicate
by check mark whether the registrant is a large accelerated filer, an
accelerated filer, non-accelerated filer or a smaller reporting company. See the
definitions of “accelerated filer,” “large accelerated filer” and “smaller
reporting company” in Rule 12b-2 of the Exchange Act. (check one):




Large
      Accelerated Filer  
            Accelerated
      Filer  x
            Non-Accelerated
      Filer  
            Smaller
      Reporting
  Company  





Indicate
by check mark whether the registrant is a shell company (as defined in Rule
12b-2 of the Exchange Act.):    Yes   ̈    No  x





As of May
12, 2008, 26,269,961 shares of common stock were outstanding.













Table of Contents








BRONCO
DRILLING COMPANY, INC.





INDEX




PagePART
      I—FINANCIAL INFORMATIONItem 1.
            
            Financial
      StatementsBronco
      Drilling Company, Inc.:Consolidated
      Balance Sheets as of March 31, 2008 (unaudited) and December 31,
      2007
            3Consolidated
      Statements of Operations for the three months ended March 31, 2008 and
      2007 (unaudited)
            4Consolidated
      Statement of Stockholders’ Equity for the three months ended March
      31,  2008 (unaudited)
            5Consolidated
      Statements of Cash Flows for the three months ended March 31, 2008 and
      2007 (unaudited)
            6Notes to
      Consolidated Financial Statements (unaudited)
            7Item 2.
            
            Management’s
      Discussion and Analysis of Financial Condition and Results of
      Operations
            13Item 3.
            
            Quantitative and
      Qualitative Disclosures about Market Risks
            17Item 4.
            
            Controls and
      Procedures
            17PART II—OTHER
      INFORMATIONItem 1.
            
            Legal
      Proceedings
            18Item 1A.
            
            Risk
      Factors
            18Item 2.
            
            Unregistered
      Sale of Equity Securities and Use of Proceeds
            18Item 3.
            
            Defaults
      Upon Senior Securities
            18Item 4.
            
            Submission of
      Matters to Vote of Security Holders
            18Item 5.
            
            Other
      Information
            18Item 6.
            
            Exhibits
            19Signatures
            20





-2-
 Table of Contents







Bronco Drilling Company, Inc. and
SubsidiariesCONSOLIDATED BALANCE SHEETS(Amounts
      in thousands, except share par value)March
      31,
            
            
            December
      31,2008
            
            
            2007ASSETS
            
            (Unaudited)CURRENT
      ASSETSCash
      and cash equivalents
            
            $
            3,034
            
            
            $
            5,721ReceivablesTrade
      and other, net of allowance for doubtful accounts of$1,639
      and $1,834 in 2008 and 2007, respectively
            
            
            56,114
            
            
            
            61,499Contract
      drilling in progress
            
            
            2,638
            
            
            
            2,128Income
      tax receivable
            
            
            
            1,191
            
            
            
            1,191Current
      deferred income taxes
            
            
            695
            
            
            
            775Current
      maturities of note receivable
            
            
            3,888
            
            
            
            -Prepaid
      expenses
            
            
            1,502
            
            
            
            705Total
      current assets
            
            
            69,062
            
            
            
            72,019PROPERTY
      AND EQUIPMENT - AT COSTDrilling
      rigs and related equipment
            
            
            452,887
            
            
            
            510,962Transportation,
      office and other equipment
            
            
            40,550
            
            
            
            41,942493,437
            
            
            
            552,904Less
      accumulated depreciation
            
            
            89,023
            
            
            
            86,274404,414
            
            
            
            466,630OTHER
      ASSETSGoodwill
            
            
            23,909
            
            
            
            23,908Note
      receivable, less current maturities
            
            
            5,855
            
            
            
            -Investments
            
            
            
            76,820
            
            
            
            -Restricted
      cash and deposit
            
            
            2,802
            
            
            
            2,745Intangibles,
      net, and other
            
            
            2,990
            
            
            
            3,303112,376
            
            
            
            29,956$
            585,852
            
            
            $
            568,605LIABILITIES
      AND STOCKHOLDERS' EQUITYCURRENT
      LIABILITIESAccounts
      payable
            
            $
            18,964
            
            
            $
            16,715Accrued
      liabilities
            
            
            17,215
            
            
            
            19,280Current
      maturities of long-term debt
            
            
            66,078
            
            
            
            1,256Total current liabilities
            
            
            102,257
            
            
            
            37,251LONG-TERM
      DEBT,  less current maturities
            
            
            5,333
            
            
            
            66,862DEFERRED
      INCOME TAXES
            
            
            72,535
            
            
            
            68,063COMMITMENTS
      AND CONTINGENCIES (Note 6)STOCKHOLDERS'
      EQUITYCommon
      stock, $.01 par value, 100,000 shares authorized;26,270
      and 26,031 shares issued and outstandingat
      March 31, 2008 and December 31, 2007
            
            
            263
            
            
            
            262Additional
      paid-in capital
            
            
            299,344
            
            
            
            298,195Retained
      earnings
            
            
            106,120
            
            
            
            97,972Total
      stockholders' equity
            
            
            405,727
            
            
            
            396,429$
            585,852
            
            
            $
            568,605The
      accompanying notes are an integral part of these
    statements.


-3-
 Table of Contents


Bronco Drilling Company, Inc. and
    SubsidiariesCONSOLIDATED
      STATEMENTS OF OPERATIONS(Amounts
      in thousands, except per share amounts)Three
      Months Ended March 31,2008
              
              
              2007(Unaudited)REVENUESContract
      drilling revenues, including 0% and 4%to
      related parties
              
              $
              54,073
              
              
              $
              74,501Well
      service
              
              
              8,223
              
              
              
              4,403Gain
      on Challenger transactions
              
              
              4,707
              
              
              
              -67,003
              
              
              
              78,904EXPENSESContract
      drilling
              
              
              33,190
              
              
              
              40,800Well
      service
              
              
              
              4,943
              
              
              
              2,642Depreciation
      and amortization
              
              
              11,925
              
              
              
              11,205General
      and administrative
              
              
              5,739
              
              
              
              4,69355,797
              
              
              
              59,340Income
      from operations
              
              
              11,206
              
              
              
              19,564OTHER
      INCOME (EXPENSE)Interest
      expense
              
              
              (1,226
              )
              
              
              (1,268
              )Interest
      income
              
              
              734
              
              
              
              48Equity
      in income of investment
              
              
              1,845
              
              
              
              -Other
              
              
              141
              
              
              
              1431,494
              
              
              
              (1,077
              )Income
      before income taxes
              
              
              12,700
              
              
              
              18,487Income
      tax expense
              
              
              4,552
              
              
              
              7,101NET
      INCOME
              
              $
              8,148
              
              
              $
              11,386Income
      per common share-Basic
              
              $
              0.31
              
              
              $
              0.44Income
      per common share-Diluted
              
              $
              0.31
              
              
              $
              0.44Weighted
      average number of shares outstanding-Basic
              
              
              26,265
              
              
              
              25,907Weighted
      average number of shares outstanding-Diluted
              
              
              26,287
              
              
              
              25,909The
      accompanying notes are an integral part of these
    statements.
 -4-
 Table of Contents


Bronco Drilling Company Inc.CONSOLIDATED
      STATEMENT OF STOCKHOLDERS' EQUITY(Amounts
      in thousands)For
      the three months ended March 31, 2008(Unaudited)Additional
              
              
              
              
              
              TotalCommon
              
              
              Common
              
              
              Paid
      In
              
              
              Retained
              
              
              Stockholders'Shares
              
              
              Amount
              
              
              Capital
              
              
              Earnings
              
              
              EquityBalance
      as of January 1, 2008
              
              
              26,031
              
              
              $
              262
              
              
              $
              298,195
              
              
              $
              97,972
              
              
              $
              396,429Net
      income
              
              
              -
              
              
              
              -
              
              
              
              -
              
              
              
              8,148
              
              
              
              8,148Stock
      compensation
              
              
              239
              
              
              
              1
              
              
              
              1,149
              
              
              
              -
              
              
              
              1,150Balance
      as of March 31, 2008
              
              
              26,270
              
              
              $
              263
              
              
              $
              299,344
              
              
              $
              106,120
              
              
              $
              405,727The
      accompanying notes are an integral part of these
    statements.
  -5-
 Table of Contents


Bronco Drilling Company, Inc. and
    SubsidiariesCONSOLIDATED
      STATEMENTS OF CASH FLOWS(Amounts
      in thousands)Three
      Months Ended March 312008
              
              
              2007(Unaudited)Cash
      flows from operating activities:Net
      IncomeAdjustments
      to reconcile net income to net cash
              
              $
              8,148
              
              
              $
              11,386provided
      by operating activities:Depreciation
      and amortization
              
              
              12,071
              
              
              
              11,346Bad
      debt expense
              
              
              343
              
              
              
              338Loss
      (gain) on sale of assets
              
              
              293
              
              
              
              (320
              )Gain
      on Challenger transactions
              
              
              (4,707
              )
              
              
              -Equity
      in income of investment
              
              
              (1,845
              )
              
              
              -Stock
      compensation
              
              
              1,150
              
              
              
              692Provision
      for deferred income taxes
              
              
              4,553
              
              
              
              4,398Changes
      in current assets and liabilities:Receivables
              
              
              6,340
              
              
              
              548Contract
      drilling in progress
              
              
              (511
              )
              
              
              (89
              )Prepaid
      expenses
              
              
              (835
              )
              
              
              (460
              )Other
      assets
              
              
              (152
              )
              
              
              (507
              )Accounts
      payable
              
              
              (7,863
              )
              
              
              (7,015
              )Accrued
      expenses
              
              
              (2,065
              )
              
              
              (2,699
              )Income
      taxes payable
              
              
              -
              
              
              
              (2,402
              )Net
      cash provided by operating activities
              
              
              14,920
              
              
              
              15,216Cash
      flows from investing activities:Restricted
      cash account
              
              
              57
              
              
              
              -Business
      acquisitions, net of cash acquired
              
              
              (5,063
              )
              
              
              (2,337
              )Proceeds
      from sale of assets
              
              
              2,634
              
              
              
              1,424Purchase
      of property and equipment
              
              
              (18,528
              )
              
              
              (16,209
              )Net
      cash used in investing activities
              
              
              (20,900
              )
              
              
              (17,122
              )Cash
      flows from financing activities:Proceeds
      from borrowings
              
              
              5,000
              
              
              
              8,000Payments
      of debt
              
              
              (1,707
              )
              
              
              (14,763
              )Net
      cash provided by (used in) financing activities
              
              
              3,293
              
              
              
              (6,763
              )Net
      decrease in cash and cash equivalents
              
              
              (2,687
              )
              
              
              (8,669
              )Beginning
      cash and cash equivalents
              
              
              5,721
              
              
              
              10,608Ending
      cash and cash equivalents
              
              $
              3,034
              
              
              $
              1,939Supplementary
      disclosure of cash flow information:Interest
      paid, net of amount capitalized
              
              $
              1,393
              
              
              $
              972Income
      taxes paid
              
              
              -
              
              
              
              5,104Supplementary
      disclosure of non-cash investing and financing:Liabilities
      assumed in acquisition
              
              
              -
              
              
              
              8,527Common
      stock issued for acquisition
              
              
              -
              
              
              
              15,124Debt
      assumed in acquisition
              
              
              -
              
              
              
              6,516Note
      issued for acquisition of property and equipment
              
              
              -
              
              
              
              3,077Assets
      exchanged/sold for equity interest and note receivable
              
              
              70,381
              
              
              
              -The
      accompanying notes are an integral part of these
    statements.
  -6-
 Table of Contents
  Bronco Drilling Company and Subsidiaries
 NOTES TO
CONSOLIDATED FINANCIAL STATEMENTS
 (Unaudited)
 ($
Amounts in thousands, except per share amounts)
 
 Unless
the context requires otherwise, a reference in this quarterly report to
“Bronco,” the “Company,” “we,” “us,” and “our” are to Bronco Drilling Company,
Inc., a Delaware corporation, and its consolidated subsidiaries.
 
 1.
Organization and Summary of Significant Accounting Policies
 
 Business
and Principles of Consolidation
  Bronco
Drilling Company, Inc. provides contract land drilling and workover services to
oil and natural gas exploration and production companies. The accompanying
consolidated financial statements include the Company’s accounts and the
accounts of its wholly owned subsidiaries.   Investments in
unconsolidated subsidiaries representing ownership of at least 20%, but less
than 50%, are accounted for under the equity method.  All intercompany
accounts and transactions have been eliminated in consolidation.
  The Company
has prepared the accompanying unaudited consolidated financial statements and
related notes in accordance with accounting principles generally accepted in the
United States of America for interim financial information and with the
instructions of Form 10-Q and Regulation S-X. In preparing the financial
statements, the Company made various estimates and assumptions that affect the
amounts of assets and liabilities the Company reports as of the dates of the
balance sheets and amounts the Company reports for the periods shown in the
consolidated statements of operations, stockholders’ equity and cash flows. The
Company’s actual results could differ significantly from those estimates.
Material estimates that are particularly susceptible to significant changes in
the near term relate to the Company’s recognition of revenues and accrued
expenses, estimate of the allowance for doubtful accounts, estimate of asset
impairments, estimate of deferred taxes and determination of depreciation and
amortization expense.
  In
management’s opinion, the accompanying unaudited consolidated financial
statements contain all adjustments (consisting of normal recurring accruals)
necessary to present fairly the financial position of the Company as of March
31, 2008, the related results of operations for the three months ended March 31,
2008 and 2007 and the cash flows for the three months ended March 31, 2008 and
2007.  The information included in this Quarterly Report on Form 10-Q
should be read in conjunction with the Company’s Annual Report on Form 10-K for
the year ended December 31, 2007.
  The results
of operations for the three months ended March 31, 2008 are not necessarily an
indication of the results expected for the full year.
  A summary of
the significant accounting policies consistently applied in the preparation of
the accompanying consolidated financial statements follows.
 
 Cash
and Cash Equivalents
  The Company
considers all highly liquid debt instruments purchased with a maturity of three
months or less and money market mutual funds to be cash
equivalents.
  The Company
maintains its cash and cash equivalents in accounts and instruments which may
not be federally insured. The Company has not experienced any losses in such
accounts and believes it is not exposed to any significant credit risks on cash
and cash equivalents.
  Property
and Equipment
  Property and
equipment, including renewals and betterments, are capitalized and stated at
cost, while maintenance and repairs are expensed currently. Assets are
depreciated on a straight-line basis. The depreciable lives of drilling rigs and
related equipment are three to 15 years. The depreciable life of other equipment
is three years. Depreciation is not commenced until acquired or refurbished rigs
are placed in service. Once placed in service, depreciation continues when rigs
are being repaired, refurbished or between periods of deployment. Assets not
placed in service and not being depreciated were $43,916 and $61,604 as of March
31, 2008 and December 31, 2007, respectively. Due to immateriality, gains and
losses on dispositions are included in contract drilling and well service
revenues.
  The Company
capitalizes interest as a component of the cost of drilling rigs constructed for
its own use. For the three months ended March 31, 2008 and 2007, the Company
capitalized $382 and $454, respectively, of interest costs incurred during the
construction periods of certain drilling rigs.
  The Company
reviews long-lived assets to be held and used for impairment whenever events or
changes in circumstances indicate that the carrying amount of the assets may not
be recoverable. If the sum of the undiscounted expected future cash flows is
less than the carrying amount of the assets, the Company recognizes an
impairment loss based upon fair value of the asset.
 
 Income
Taxes
  Pursuant to
Statement of Financial Accounting Standards (“SFAS”) No. 109, “Accounting for Income Taxes,”
the Company follows the asset and liability method of accounting for income
taxes, under which the Company recognizes deferred tax assets and liabilities
for the future tax consequences attributable to differences between the
financial statement carrying amounts of existing assets and liabilities and
their respective tax bases.  Deferred tax assets and liabilities were
measured using enacted tax rates expected to apply to taxable income in the
years in which the Company expects to recover or settle those temporary
differences.  A statutory Federal tax rate of 35% and effective state
tax rate of 3.7% (net of Federal income tax effects) were used for the enacted
tax rates for all periods.
  As changes in
tax laws or rates are enacted, deferred income tax assets and liabilities are
adjusted through the provision for income taxes.  Deferred tax assets
are reduced by a valuation allowance if, based on available evidence, it is more
likely than not that some portion or all of the deferred tax assets will not be
realized.  The classification of current and noncurrent deferred tax
assets and liabilities is based primarily on the classification of the assets
and liabilities generating the difference.
 
 The Company
adopted FASB Interpretation No. 48, Accounting for Uncertainty in Income
Taxes — an interpretation of FASB Statement No. 109(“FIN 48”), on
January 1, 2007. FIN 48 clarifies the accounting for uncertainty in income taxes
recognized in an enterprise’s financial statements and prescribes a recognition
threshold and measurement attribute for the financial statement recognition and
measurement of a tax position taken or expected to be taken in a tax return. The
Company is continuing its practice of recognizing interest and/or penalties
related to income tax matters as income tax expense. As of March 31, 2008, the
tax years ended December 31, 2004 through December 31, 2006 are open for
examination by U.S. taxing authorities.
 
 Net
Income Per Common Share
  The Company
computes and presents net income per common share in accordance with SFAS
No. 128, “Earnings per
Share.” This standard requires dual presentation of basic and diluted net
income per share on the face of the Company’s statement of operations. Basic net
income per common share is computed by dividing net income or loss attributable
to common stock by the weighted average number of common shares outstanding for
the period. Diluted net income per common share reflects the potential dilution
that could occur if options or other contracts to issue common stock were
exercised or converted into common stock.
 
 Stock-based
Compensation
  The Company
adopted SFAS No. 123(R), “Share-Based Payment” upon
granting its first stock options on August 16, 2005. SFAS No. 123(R)
requires a public entity to measure the costs of employee services received in
exchange for an award of equity or liability instruments based on the grant-date
fair value of the award. That cost will be recognized over the periods during
which an employee is required to provide service in exchange for the
award.
 
 Recent
Accounting Pronouncements
  In September
2006, the FASB issued SFAS No. 157 (“SFAS 157”), “Fair Value
Measurements.”  This Statement defines fair value, establishes
a framework for measuring fair value in generally accepted accounting principles
(“GAAP”), and expands disclosures about fair value measurements. This Statement
applies under other accounting pronouncements that require or permit fair value
measurements, the FASB having previously concluded in those accounting
pronouncements that fair value is the relevant measurement attribute.
Accordingly, this Statement does not require any new fair value measurements.
This Statement is effective for fiscal years beginning after November 15, 2007;
however, on February 12, 2008, the FASB issued FSP FAS No. 157-2, Effective Dates of FASB Statement
No. 157,which delays the effective date of SFAS No. 157 to fiscal years
beginning after November 15, 2008 for all nonfinancial assets and nonfinancial
liabilities, except those that are recognized or disclosed at fair value in the
financial statements on a recurring basis.  The adoption of the
provisions of SFAS 157 did not have a material impact on the Company’s financial
statements.
 -7-
 Table of Contents
 
 In February
2007, the FASB issued SFAS No. 159 (“SFAS 159”), “The Fair Value Option for Financial
Assets and Financial Liabilities−Including an amendment of FASB Statement No.
115.” SFAS No. 159 permits entities to choose to measure many financial
instruments and certain other items at fair value. Unrealized gains and losses
on items for which the fair value option has been elected will be recognized in
earnings at each subsequent reporting date. SFAS No. 159 is effective for fiscal
years beginning January 1, 2008. The adoption of the provisions of SFAS 159 did
not have a material impact on the Company’s financial
statements.
  In December
2007, the FASB issued SFAS No. 141 (revised 2007) “Business Combinations” (“SFAS
141R”). SFAS 141R establishes principles and requirements for how the acquirer
of a business recognizes and measures in its financial statements the
identifiable assets acquired, the liabilities assumed, and any noncontrolling
interest in the acquiree. SFAS 141R also provides guidance for recognizing and
measuring the goodwill acquired in the business combination and determines what
information to disclose to enable users of the financial statements to evaluate
the nature and financial effects of the business combination. SFAS No. 141R
applies prospectively to business combinations for which the acquisition date is
on or after the beginning of the first annual reporting period beginning on or
after December 15, 2008. The Company is currently evaluating the potential
impact, if any, of the adoption of SFAS 141R on its consolidated financial
statements.
  In December
2007, the FASB issued SFAS No. 160 (“SFAS 160”), “Noncontrolling Interests in
Consolidated Financial Statements — an amendment of ARB No. 51.” SFAS 160
establishes accounting and reporting standards for the noncontrolling interest
in a subsidiary and for the deconsolidation of a subsidiary. It clarifies that a
noncontrolling interest in a subsidiary is an ownership interest in the
consolidated entity that should be reported as equity in the consolidated
financial statements. SFAS 160 requires retroactive adoption of the presentation
and disclosure requirements for existing minority interests. All other
requirements of SFAS 160 shall be applied prospectively. SFAS 160 is effective
for fiscal years, and interim periods within those fiscal years, beginning on or
after December 15, 2008. The Company is currently evaluating the potential
impact of the adoption of SFAS 160 on its consolidated financial
statements.
  In March
2008, the FASB issued SFAS No. 161 (“SFAS 161”), “Disclosures about Derivative
Instruments and Hedging Activities – an amendment of FASB Statement No.
133.”  SFAS 161 requires enhanced disclosures for derivative
instruments and hedging activities that include how and why an entity uses
derivatives, how instruments and the related hedged items are accounted for
under FAS 133 and related interpretations, and how derivative instruments and
related hedged items affect the entity’s financial position, results of
operations and cash flows.  SFAS 161 is effective for financial
statements issued for fiscal years and interim periods beginning after November
15, 2008. The Company does not expect the adoption of SFAS 161 to have a
material impact on its financial position or results of operations.
 
 2.
Acquisitions
 
 On January 9,
2007, the Company completed the acquisition of 31 workover rigs, 24 of which
were in service at the time of the acquisition, from Eagle Well Service, Inc.
(“Well Service”) and related subsidiaries for $2,567 in cash, 1,070,390 shares
of our common stock with a fair market value of $15,125, and the assumption of
debt of $6,527, liabilities of $678, and additional deferred income taxes of
$7,188.  This acquisition provided a platform for the Company to
expand into the well service industry.  The Company acquired the stock
of Well Service, which was accounted for using the purchase method of
accounting.  The deferred tax liability assumed in the acquisition was
the main factor that resulted in the Company recording goodwill, all of which is
not deductible for tax purposes.  The amortizable intangibles acquired
include trade name and customer lists, which will be amortized over two and five
years, respectively.  The operations related to the Well Service
acquisition are included in the Company’s statement of operations as of the
respective closing date.
  The following
table summarizes the final allocation of purchase price to the Company’s
acquisition of Well Service:


Assets
      acquired:Cash
              
              $
              198Prepaid
      expenses
              
              
              227Accounts
      receivable
              
              
              1,667Workover
      equipment
              
              
              23,912Vehicles
              
              
              1,943Other
      equipment
              
              
              244Customer
      lists
              
              
              910Trade
      name
              
              
              190Goodwill
              
              
              2,794$
              32,085
  On
January 4, 2008, we acquired a 25% equity interest in Challenger Limited
(“Challenger”), in exchange for six drilling rigs and $5,063 in
cash.  The Company’s 25% interest at March 31, 2008 was based on
64,957,265 shares of Challenger issued.  The Company recorded
equity in income of investment of $1,845 for the three months ended March 31,
2008 related to its equity investment in Challenger.  Challenger is an
international provider of contract land drilling and workover services to oil
and natural gas companies with its principal operations in
Libya.  Five of the contributed drilling rigs were from our existing
marketed fleet and one was a newly constructed rig.  The general
specifications of the contributed rigs are as follows:


ApproximateDrillingRig
              
              Design
              Depth
      (ft)
              Type
              Horsepower3
              
              Cabot
      900
              10,000
              Mechanical
              95018
              
              Gardner
      Denver 1500E
              25,000
              Electric
              2,00019
              
              Mid
      Continent U-1220 EB
              25,000
              Electric
              2,00038
              
              National
      1320
              25,000
              Electric
              2,00093
              
              National
      T-32
              8,000
              Mechanical
              50096
              
              Ideco
      H-35
              8,000
              Mechanical
              400


The Company
also sold to Challenger four drilling rigs and ancillary
equipment.  The sales price of $12,990 consisted of $1,950 in cash,
installment receivable of $1,500 and a term note of $9,540.  The
installment receivable and term note bear interest at 8.5%.  Interest
and principal payments of $909 on the note are due quarterly until maturity at
December 31, 2010.  The note receivable is collateralized by the
assets sold to Challenger.  The Company recorded a net gain of $4,707
relating to the exchange and sale of rigs and equipment to
Challenger.  The transactions were completed on January 4,
2008.  Prior to these transactions, Challenger owned a fleet of 23
rigs.


At
March 31, 2008, the book value of our ordinary share investment in
Challenger was $76,820.  The Company’s 25% share of the net assets of
Challenger was estimated to be $35,189. The Company is in the process of
gathering additional information in order to finalize the accounting treatment
related to these transactions, including the allocation of the difference
between the amount of the Company's investment and the amount of the underlying
equity in the net assets of Challenger.
 -8-
 Table of Contents
  3.
Long-term Debt
 
 Long-term
debt consists of the following:
 March
      31,
              
              
              December
      31,2008
              
              
              2007Notes
      payable to De Lage Landen Financial Services, collateralized by
      cranes,payable
      in ninety-six monthly principal and interest installments of
      $61Interest
      on the notes ranges from 6.74% - 7.07%, with various due dates
      (1)
              
              $
              3,576
              
              
              $
              5,120Revolving
      credit facility with Fortis Capital Corp., collateralized by the Company's
      assets,and
      matures on January 13, 2009.  Loans under the revolving credit
      facilitybear
      interest at variable rates as defined in the credit agreement.
      (2)
              
              
              65,000
              
              
              
              60,000Note
      payable to Ameritas Life Insurance Corp., collateralized by the building,
      payable in
                principal
      and interest installments of $14, interest on the note is 6.0%, maturity
      date of
                January
      1, 2021. (3)
              
              
              1,502
              
              
              
              1,521Notes
      payable to General Motors Acceptance Corporation, collateralized by
      trucks, payable
                in
      monthly principal and interest installments of $35, various due dates.
      (4)
              
              
              1,078
              
              
              
              1,184Note
      payable to John Deere Construction & Forestry Company, collateralized
      by forklifts,
                payable
      in thirty-six monthly installments of $11, due December 1, 2009.
      (5)
              
              
              224
              
              
              
              258Notes
      payable to Ford Credit, collateralized by truck, payable in principal and
      interestinstallments
      of $1.  Interest on the note is 2.9%, due November 10, 2010.
      (6)
              
              
              31
              
              
              
              3571,411
              
              
              
              68,118Less
      current installments
              
              
              66,078
              
              
              
              1,256$
              5,333
              
              
              $
              66,862


(1)
              On
      December 7, 2005, January 4, 2006, and June 12, 2006, the
      Company entered into Term Loan and Security Agreements with De Lage Landen
      Financial Services, Inc. The loans provide for term installments in an
      aggregate amount not to exceed $4,512. The proceeds of the term loans were
      used to purchase four cranes.
 
 (2)
              On
      January 13, 2006, the Company entered into a $150.0 million revolving
      credit facility with Fortis Capital Corp., as administrative agent, lead
      arranger and sole bookrunner, and a syndicate of lenders, which include
      The Royal Bank of Scotland plc, The CIT Group/Business Credit, Inc.,
      Calyon Corporate and Investment Bank, Merrill Lynch Capital, Comerica Bank
      and Caterpillar Financial Services Corporation. The revolving credit
      facility matures on January 13, 2009.  The Company intends
      to refinance the revolving credit facility during 2008.  The
      initial aggregate revolving commitment of $150.0 million is automatically
      and permanently reduced by $10.0 million at the end of each fiscal quarter
      starting September 30, 2006.  The aggregate revolving commitment
      was $80,000 as of March 31, 2008.  Loans under the revolving
      credit facility bear interest at LIBOR plus a margin that can range from
      2.0% to 3.0% or, at our option, the prime rate plus a margin that can
      range from 1.0% to 2.0%, depending on the ratio of our outstanding senior
      debt to “Adjusted EBITDA” as defined in the credit agreement. Borrowings
      under this revolving credit facility were used to fund a portion of the
      Company’s acquisition of drilling rigs and other assets from Big A
      Drilling Company, L.C. and to repay in full all outstanding borrowings
      under the Company’s term loan with Merrill Lynch Capital and its revolving
      line of credit with International Bank of
  Commerce.
 
 The
      revolving credit facility also provides for a quarterly commitment fee of
      0.5% per annum of the unused portion of the revolving credit
      facility, and fees for each letter of credit issued under the facility.
      Commitment fees expense for the three months ended March 31,
      2008 and 2007 were $59 and $161, respectively.  The Company’s
      subsidiaries have guaranteed the loans and other obligations under the
      revolving credit facility. The obligations under the revolving credit
      facility and the related guarantees are secured by a first priority
      security interest in substantially all of our assets, as well as the
      shares of capital stock of our direct and indirect subsidiaries.
   The
      revolving credit facility contains customary covenants for facilities of
      this type, including among other things, covenants that restrict the
      Company’s ability to make capital expenditures, incur indebtedness, incur
      liens, dispose of property, repay debt, pay dividends, repurchase shares
      and make certain acquisitions. The financial covenants are a minimum fixed
      charge coverage ratio of 1.75 to 1.00 and a maximum total leverage ratio
      of 2.00 to 1.00. The Company was in compliance with all covenants at March
      31, 2008.  The revolving credit facility provides for mandatory
      prepayments under certain
circumstances.
  (3)
              On
      January 2, 2007, the Company assumed a term loan agreement with Ameritas
      Life Insurance Corp. related to the acquisition of a
      building.  The loan provides for term installments in an
      aggregate not to exceed
$1,590.
  (4)
              On
      various dates during 2007, the Company entered into term loan agreements
      with General Motors Acceptance Corporation.  The loans provide
      for term installments in an aggregate not to exceed $1,283.  The
      proceeds of the term loans were used to purchase 30
  trucks.
 
 (5)
              On
      November 21, 2006, the Company entered into term loan agreements with John
      Deere Credit.  The loans provide for term installments in an
      aggregate not to exceed $403.  The proceeds of the term loans
      were used to purchase two
forklifts.
 
 (6)
              On
      November 9, 2007, the Company entered into a term loan agreement with Ford
      Credit.  The loan provides for a term installment in an
      aggregate not to exceed $36.  The proceeds of the term loan were
      used to purchase a truck.
  Long-term
debt maturing each year subsequent to March 31, 2008 is as
follows:


2009
              
              $
              66,0782010
              
              
              1,1592011
              
              
              9262012
              
              
              7122013
              
              
              7622014
      and thereafter
              
              
              1,774$
              71,411
 -9-
 Table of Contents


4.
Workers’ Compensation and Health Insurance
  The
Company is insured under a large deductible workers’ compensation insurance
policy. The policy generally provides for a $1,000 deductible per covered
accident. The Company maintains letters of credit in the aggregate amount of
$7,330 for the benefit of various insurance companies as collateral for
retrospective premiums and retained losses which may become payable under the
terms of the underlying insurance contracts.  The letters of credit
are typically renewed annually.  No amounts have been drawn under the
letters of credit. At March 31, 2008 and December 31, 2007, the Company had
a deposit of $2,802 and $2,745, respectively, with an insurance company
collateralizing a letter of credit. The deposit is reflected in restricted cash
and deposit. Accrued expenses at March 31, 2008 and December 31, 2007 included
approximately $2,445 and $2,959, respectively, for estimated incurred but not
reported costs and premium accruals related to our workers’ compensation
insurance.
  On
November 1, 2005, the Company initiated a self-insurance program for major
medical, hospitalization and dental coverage for employees and their dependents,
which is partially funded by payroll deductions. The Company provided for both
reported and incurred but not reported medical costs in the accompanying
consolidated balance sheets. We have a maximum liability of $100 per
employee/dependent per year. Amounts in excess of the stated maximum are covered
under a separate policy provided by an insurance company. Accrued expenses at
March 31, 2008 and December 31, 2007 included approximately $988 and $409,
respectively, for our estimate of incurred but not reported costs related to the
self-insurance portion of our health insurance.
 
 5.
Transactions with Affiliates
  The Company
has five operating leases with affiliated entities.  Related rent
expense was approximately $70 for the three months ended March 31,
2008.
 
 The
Company provided contract drilling services totaling $2,616 to affiliated
entities during the three months ended March 31, 2007. Effective March 16, 2007,
these entities were no longer affiliates of the Company.
 
 6.
Commitments and Contingencies
  Three
purported stockholders of the Company have separately filed complaints seeking
class action status relating to the merger involving the Company, Allis-Chalmers
Energy, Inc. (“Allis-Chalmers”) and Elway Merger Sub, Inc., a wholly-owned
subsidiary of Allis-Chalmers (“Merger Sub”) that was publicly announced on
January 24, 2008.  Two actions were filed in the District Court of
Oklahoma County in the State of Oklahoma on January 29, 2008 and February 28,
2008, respectively.  The two actions were consolidated into a single
action in the District Court of Oklahoma County in the State of Oklahoma on
April 9, 2008.  The third action was filed in the Court of Chancery in
the State of Delaware on January 29, 2008.  The defendants named in
the consolidated Oklahoma action are Bronco, the Bronco board of directors, and
Allis-Chalmers.  The defendants named in the Delaware action are
Bronco, the Bronco board of directors, Allis-Chalmers, and Merger
Sub.  The complaints generally allege that the merger consideration is
inadequate, that the Bronco board of directors has breached its fiduciary
duties, that Allis-Chalmers has aided and abetted the Bronco board of directors’
breaches of fiduciary duties, and that the preliminary joint proxy
statement/prospectus included as part of Allis-Chalmers’ registration statement
on Form S-4, filed with the Securities and Exchange Commission (the “SEC”)
February 20, 2008, contains materially incomplete and misleading
information.  The actions generally seek to enjoin the merger and
cause Bronco board of directors to undertake an auction for Bronco or otherwise
take action to maximize stockholder value.  The Delaware action also
seeks monetary damages for Bronco’s stockholders, and the consolidated Oklahoma
action requests that the proposed merger be rescinded if it is
consummated.  On April 17, 2008, the plaintiffs in the consolidated
Oklahoma action filed an amended complaint.  The response of Bronco
and Bronco’s board of directors is due on May 14, 2008.  On April 23,
2008, the plaintiffs in the Delaware Action filed an amended
complaint.  The response of Bronco and Bronco’s board of directors is
due on May 23, 2008.  Discovery in both actions is ongoing at this
time.  Bronco intends to vigorously defend these
actions.  As of this time, no order has been issued in either
proceeding that would preclude the consummation of the merger.  Each
of Allis-Chalmers and Bronco has the right to terminate the merger agreement in
the event a court enjoins the consummation of the merger.
  Various other
claims and lawsuits, incidental to the ordinary course of business, are pending
against the Company. In the opinion of management, all matters are adequately
covered by insurance or, if not covered, are not expected to have a material
effect on the Company’s consolidated financial position, results of operations
or cash flows.
 
 7.
Business Segments
  The Company’s
reportable business segments are contract land drilling and well
servicing.  The contract drilling segment utilizes a fleet of land
drilling rigs to provide contract drilling services to oil and natural gas
exploration and production companies.  During the three months ended
March 31, 2008, our drilling rigs operated in Oklahoma, Texas, Colorado,
Montana, Utah, North Dakota, Kansas and Louisiana.  The well servicing
segment encompasses a full range of services performed with a mobile well
servicing rig, including the installation and removal of downhole equipment and
elimination of obstructions in the well bore to facilitate the flow of oil and
gas. During the three months ended March 31, 2008, our workover rigs operated in
Oklahoma, Texas, Kansas, Colorado and New Mexico.  The accounting
policies of the segments are the same as those described in the summary of
significant accounting policies.  The Company’s reportable segments
are strategic business units that offer different products and
services.
 
 The following table sets forth
certain financial information with respect to the Company’s reportable
segments:
 Contract
      drilling
              
              
              Well
      servicing
              
              
              TotalThree
      Months Ended March 31, 2008Operating
      Revenues
              
              $
              54,073
              
              
              $
              8,223
              
              
              $
              62,296Direct
      operating costs
              
              
              (33,190
              )
              
              
              (4,943
              )
              
              $
              (38,133
              )Segment
      profits
              
              $
              20,883
              
              
              $
              3,280
              
              
              $
              24,163Depreciation
      and amortization
              
              $
              10,623
              
              
              $
              1,302
              
              
              $
              11,925Capital
      expenditures
              
              $
              15,340
              
              
              $
              3,188
              
              
              $
              18,528Identifiable
      assets
              
              $
              523,710
              
              
              $
              62,142
              
              
              $
              585,852Three
      Months Ended March 31, 2007Operating
      Revenues
              
              $
              74,501
              
              
              $
              4,403
              
              
              $
              78,904Direct
      operating costs
              
              
              (40,800
              )
              
              
              (2,642
              )
              
              $
              (43,442
              )Segment
      profits
              
              $
              33,701
              
              
              $
              1,761
              
              
              $
              35,462Depreciation
      and amortization
              
              $
              10,502
              
              
              $
              703
              
              
              $
              11,205Capital
      expenditures
              
              $
              14,494
              
              
              $
              1,715
              
              
              $
              16,209Identifiable
      assets
              
              $
              480,907
              
              
              $
              37,309
              
              
              $
              518,216
 The following
table reconciles the segment profits above to the operating income as reported
in the consolidated statements of operations:


Three
      Months Ended
              
              
              Three
      Months EndedMarch
      31, 2008
              
              
              March
      31, 2007Segment
      profits
              
              $
              24,163
              
              
              $
              35,462General
      and administrative expenses
              
              
              (5,739
              )
              
              
              (4,693
              )Depreciation
      and amortization
              
              
              (11,925
              )
              
              
              (11,205
              )Gain
      on Challenger transaction
              
              
              4,707
              
              
              
              -Operating
      income
              
              $
              11,206
              
              
              $
              19,564
 -10-
 Table of Contents
  8.
Net Income Per Common Share
  The following
table presents a reconciliation of the numerators and denominators of the basic
and diluted earnings per share (“EPS”) and diluted EPS comparisons as required
by SFAS No. 128:
 Three
      Months EndedMarch
      31,2008
                
                
                2007Basic:Net
      income
                
                $
                8,148
                
                
                $
                11,386Weighted
      average shares
                
                
                26,265
                
                
                
                25,907Earnings
      per share
                
                $
                0.31
                
                
                $
                0.44Diluted:Net
      income
                
                $
                8,148
                
                
                $
                11,386Weighted
      average shares:Outstanding
      (thousands)
                
                
                26,265
                
                
                
                25,907Options
      (thousands)
                
                
                22
                
                
                
                226,287
                
                
                
                25,909Income
      per share
                
                $
                0.31
                
                
                $
                0.44
 The weighted
average number of diluted shares excludes 9,865 and 299,167 shares for the three
months ended March 31, 2008 and 2007, respectively, subject to restricted stock
awards and options due to their antidilutive effects.
  9.
Equity Transactions
  In March
2007, the Company closed a public offering of 3,450,000 shares of common stock
at a price of $22.75 per share. In the offering, a total of 1,700,000 shares
were sold by the Company and 1,750,000 shares were sold by the selling
stockholder.  The offering resulted in net proceeds to the Company of
approximately $36,229, excluding offering expenses of $577. The Company did not
receive any proceeds from the sale of shares by the selling
stockholder.
  Effective
January 9, 2007, the Company issued 1,070,390 shares of common stock to the
equity owners of Eagle in connection with the Company’s acquisition of
Eagle.
 
 10.
Stock Options and Stock Option Plan
  The Company’s
2005 Stock Incentive Plan was adopted on July 20, 2005 and amended on
November 16, 2005 (the “2005 Plan”). The compensation cost that has been
charged against income before taxes related to stock options was $0 and $528 for
the three months ended March 31, 2008 and 2007, respectively.  These
options are reported as equity instruments and their fair value is amortized to
expense using the straight line method over the vesting period. The shares of
stock issued upon the exercise of the options will be from authorized but
unissued common stock.
 
 The
Company receives a tax deduction for certain stock option exercises during the
period the options are exercised, generally for the excess of the price at which
the options are sold over the exercise price of the options. There have been no
stock options exercised under the 2005 Plan.
 
 The
purpose of the 2005 Plan was to enable the Company, and any of its affiliates,
to attract and retain the services of the types of employees, consultants and
directors who will contribute to its long-range success and to provide
incentives which are linked directly to increases in share value which will
inure to the benefit of the Company’s stockholders. The 2005 Plan provided a
means by which eligible recipients of awards may be given an opportunity to
benefit from increases in value of the Company’s common stock through the
granting of incentive stock options and nonstatutory stock options. Eligible
award recipients under the 2005 Plan were employees, consultants and directors
of the Company and its affiliates. Incentive stock options under the 2005 Plan
could be granted only to employees. Awards other than incentive stock options
under the 2005 Plan could be granted to employees, consultants and directors.
The shares that may be issued upon exercise of the options will be from
authorized but unissued common stock, and the maximum aggregate amount of such
common stock which could be issued upon exercise of all awards under the plan,
including incentive stock options, could not exceed 1,000,000 shares, subject to
adjustment to reflect certain corporate transactions or changes in the Company’s
capital structure.
 
 The
Company’s board of directors and a majority of the Company’s stockholders
approved the Company’s 2006 Stock Incentive Plan (the “2006 Plan,” and together
with the 2005 Plan, the “Plans”), effective April 20, 2006.  No
further awards will be made under the 2005 Plan.  The purpose of the
2006 Plan is to provide a means by which eligible recipients of awards may be
given an opportunity to benefit from increases in value of the Company’s common
stock through the granting of one or more of the following awards: (1) incentive
stock options, (2) nonstatutory stock options, (3) restricted awards, (4)
performance awards and (5) stock appreciation rights.  The maximum
aggregate amount of the Company’s common stock which may be issued upon exercise
of all awards under the 2006 Plan, may not exceed 2,500,000 shares, less shares
underlying options granted to employees under the 2005 Plan prior to the
adoption of the 2006 Plan.  There have been no stock options exercised
under the 2006 Plan.
 
 On April
20, 2007, the Company filed a Tender Offer Statement on Schedule TO relating to
the Company’s offer to twenty-five eligible directors, officers, employees and
consultants to exchange certain outstanding options to purchase shares of the
Company’s common stock for restricted stock awards consisting of the right to
receive restricted shares of the Company’s common stock (the “Restricted Stock
Awards”). The offer expired on May 21, 2007. Pursuant to the offer, the Company
accepted for cancellation eligible options to purchase 729,000 shares of the
Company’s common stock tendered by directors, officers, employees and
consultants eligible to participate in the offer.  Subject to the
terms and conditions of the offer, on May 21, 2007 the Company granted one
Restricted Stock Award in exchange for every two shares of common stock
underlying the eligible options tendered.  The Restricted Stock Awards
will vest in equal amounts on January 1, 2008 and
January 1, 2009, subject to earlier vesting or forfeiture in certain
circumstances. The Company granted the Restricted Stock Awards under the 2006
Plan.
  An
incremental cost was computed in accordance with SFAS No. 123(R) upon the
conversion of options to restricted stock.  The incremental cost was
measured as the excess of the fair value of the modified award over the fair
value to the original award immediately preceding conversion, measured based on
the share price and other pertinent factors at that date.  The
incremental cost to be recognized over the vesting period of the modified award
is $387.
  The fair
value of each option award is estimated on the date of grant using a
Black-Scholes valuation model that uses the assumptions noted in the following
table. Expected volatilities are based on the historical volatility of a
selected peer. The majority of the Company’s options were held by employees that
made up one group with similar expected exercise behavior for valuation
purposes. The expected term of options granted is estimated based on an average
of the vesting period and the contractual period. The risk-free rate for periods
within the contractual life of the option is based on the U.S. Treasury yield
curve in effect at the time of the grant.
 
 Under the
2005 Plan, employee stock options become exercisable in equal monthly
installments over a three-year period, and all options generally expire ten
years after the date of grant. Under the 2006 Plan, employee stock options
become exercisable to the extent the options have become vested pursuant to the
vesting schedule set forth in the applicable stock option award certificate, and
all options generally expire ten years after the date of grant.  The
Plans provide that all options must have an exercise price not less than the
fair market value of the Company’s common stock on the date of the grant. The
Company did not have any outstanding options at March 31, 2008.
 -11-
 Table of Contents
  The
Company has not declared dividends since it became a public company and does not
intend to do so in the foreseeable future, and thus did not use a dividend
yield. Expected life has been determined using the permitted simplified
method.  In each case, the actual value that will be realized, if any,
will depend on the future performance of the common stock and overall stock
market conditions. There is no assurance that the value an optionee actually
realizes will be at or near the value estimated using the Black–Scholes model.
The following table provides information relating to activity in the Plans
during the first three months of 2008:
  WeightedWeighted
                  Average
                
                
                Average
      Remaining
                
                
                AggregateExercise
      Price
                
                
                Contractual
                
                
                IntrinsicShares
                
                
                per
      Share
                
                
                Life
                
                
                ValueOptions
      outstanding at December 31, 2007
                
                
                20,000
                
                
                $
                26.14
                
                
                
                8.30
                
                
                $
                (227
                )Granted
                
                
                -
                
                
                
                -Exercised
                
                
                -
                
                
                
                -Converted
                
                
                -
                
                
                
                -Forfeited/expired
                
                
                (20,000
                )
                
                
                26.14Options
      outstanding at March 31, 2008
                
                
                -
                
                
                $
                -
                
                
                
                -
                
                
                $
                -Options
      fully vested and exercisable at March 31, 2008
                
                
                -
                
                
                $
                -
                
                
                
                -
                
                
                $
                -
 Weighted
      Average
                
                
                AggregateGrant
      Date
                
                
                Grant
      DateShares
                
                
                Fair
      Value
                
                
                Fair
      ValueOptions
      nonvested at December 31, 2007
                
                
                9,319
                
                
                $
                13.34
                
                
                $
                121Granted
                
                
                -
                
                
                
                -
                
                
                
                -Vested
                
                
                -
                
                
                
                -
                
                
                
                -Converted
                
                
                -
                
                
                
                -
                
                
                
                -Forfeited/expired
                
                
                (9,319
                )
                
                
                13.34
                
                
                
                (121
                )Options
      nonvested at March 31, 2008
                
                
                -
                
                
                $
                -
                
                
                $
                -
 As of March 31, 2008, there was $0 of total
unrecognized compensation cost related to nonvested share-based compensation
arrangements granted under the Plans.
  11. Restricted Stock
  Under all
restricted stock awards to date, shares were issued when granted and nonvested
shares are subject to forfeiture for failure to fulfill service
conditions.  Restricted stock awards are valued at the grant date
market value of the underlying common stock and are being amortized to
operations over the respective vesting period.  Compensation expense
for the three months ended March 31, 2008 and 2007, related to shares of
restricted stock was $1,150 and $165, respectively.  Restricted stock
activity for the three months ended March 31, 2008 was as
follows:
 Weighted
      AverageGrant
      DateShares
                    
                    
                    Fair
      ValueOutstanding
      at December 31, 2007
                    
                    
                    553,445
                    
                    
                    
                    16.64Granted
                    
                    
                    230,874
                    
                    
                    
                    13.94Vested
                    
                    
                    (245,778
                    )
                    
                    
                    16.56Forfeited/expired
                    
                    
                    -Outstanding
      at March 31, 2008
                    
                    
                    538,541
                    
                    
                    $
                    15.50
   12.
Employee Benefit Plans
  The Company
implemented a new 401(k) retirement plan for its eligible employees during 2007.
Under the plan, the Company matches 100% of employees’ contributions up to 5% of
eligible compensation. Employee and employer contributions vest immediately. The
Company’s contributions for the three months ended March 31, 2008 and 2007 were
$258 and $246, respectively.
 -12-
 Table of Contents
  ITEM 2. Management’s Discussion and Analysis of Financial
Condition and Results of Operations
  The following
discussion and analysis should be read in conjunction with the “Management’s
Discussion and Analysis of Financial Condition and Results of Operations”
section and audited consolidated financial statements and related notes thereto
included in our Annual Report on Form 10-K, filed with the Securities and
Exchange Commission, or SEC, on March 17, 2008 and with the unaudited
consolidated financial statements and related notes thereto presented in this
Quarterly Report on Form 10-Q.
 
 Disclosure
Regarding Forward-Looking Statements
  Our
disclosure and analysis in this Form 10-Q may include forward-looking statements
within the meaning of Section 27A of the Securities Act of 1933, as
amended, or the Securities Act, Section 21E of the Securities Exchange Act
of 1934, as amended, or the Exchange Act, and the Private Securities Litigation
Reform Act of 1995, that are subject to risks and uncertainties. Forward-looking
statements give our current expectations and projections relating to our
financial condition, results of operations, plans, objectives, future
performance and business. You can identify these statements by the fact that
they do not relate strictly to historical or current facts. These statements may
include words such as “anticipate,” “estimate,” “expect,” “project,” “intend,”
“plan,” “believe” and other words and terms of similar meaning in connection
with any discussion of the timing or nature of future operating or financial
performance or other events. All statements other than statements of historical
facts included in this Form 10-Q that address activities, events or developments
that we expect, believe or anticipate will or may occur in the future are
forward-looking statements.
  These
forward-looking statements are largely based on our expectations and beliefs
concerning future events, which reflect estimates and assumptions made by our
management. These estimates and assumptions reflect our best judgment based on
currently known market conditions and other factors relating to our operations
and business environment, all of which are difficult to predict and many of
which are beyond our control.
  Although we
believe our estimates and assumptions to be reasonable, they are inherently
uncertain and involve a number of risks and uncertainties that are beyond our
control. In addition, management’s assumptions about future events may prove to
be inaccurate. Management cautions all readers that the forward-looking
statements contained in this Form 10-Q are not guarantees of future performance,
and we cannot assure any reader that those statements will be realized or the
forward-looking events and circumstances will occur. Actual results may differ
materially from those anticipated or implied in the forward-looking statements
due to the factors listed in the “Management’s Discussion and Analysis of
Financial Condition and Results of Operations” and “Risk Factors” sections of
this Quarterly Report on Form 10-Q and our most recent Annual Report on Form
10-K. All forward-looking statements speak only as of the date of this Form
10-Q. We do not intend to publicly update or revise any forward-looking
statements as a result of new information, future events or otherwise, except as
required by law. These cautionary statements qualify all forward-looking
statements attributable to us or persons acting on our behalf.
 
 Overview
 We provide
contract land drilling and workover services to oil and natural gas exploration
and production companies. As of April 30, 2008, we owned a fleet of 56 land
drilling rigs, of which 45 were marketed and 11 were held in inventory. We also
owned a fleet of 58 workover rigs, of which 53 were operating and five were in
the process of being manufactured. As of April 30, 2008, we also owned a fleet
of 70 trucks used to transport our rigs.
  We commenced
operations in 2001 with the purchase of one stacked 650-horsepower drilling rig
that we refurbished and deployed. We subsequently made selective acquisitions of
both operational and inventoried drilling rigs, as well as ancillary equipment.
Our management team has significant experience not only with acquiring rigs, but
also with refurbishing and deploying inventoried rigs. We have successfully
refurbished and brought into operation 25 inventoried drilling rigs during the
period from November 2003 through December 2007. In addition, we have a 41,000
square foot machine shop in Oklahoma City, which allows us to refurbish and
repair our rigs and equipment in-house. This facility, which complements our
three drilling rig refurbishment yards, significantly reduces our reliance on
outside machine shops and the attendant risk of third-party delays in our rig
refurbishment program.
  We currently
operate our drilling rigs in Oklahoma, Texas, Colorado, Utah, North Dakota, and
Louisiana.  Our workover rigs are currently operating in Oklahoma,
Texas, Kansas, Colorado and New Mexico.  A majority of the wells we
have drilled for our customers have been drilled in search of natural gas
reserves. Natural gas is often found in deep and complex geologic formations
that generally require higher horsepower, premium rigs and experienced crews to
reach targeted depths. Our current fleet of 56 rigs includes 36 rigs ranging
from 950 to 2,500 horsepower. Accordingly, such rigs can, or in the case of
inventoried rigs upon refurbishment, will be able to, reach the depths required
to explore for deep natural gas reserves. Our higher horsepower land drilling
rigs can also drill horizontal wells, which are increasing as a percentage of
total wells drilled in North America. We believe our premium rig fleet,
inventory and experienced crews position us to benefit from the natural gas
drilling activity in our core operating areas.
  On January
23, 2008, we entered into a merger agreement with Allis-Chalmers Energy Inc.,
which we refer to as Allis-Chalmers, providing for the acquisition of us by
Allis-Chalmers.  Pursuant to the merger agreement, we and
Allis-Chalmers agreed that, subject to the satisfaction of several closing
conditions (including approval by each company’s stockholders), Elway Merger
Sub, Inc., a wholly-owned subsidiary of Allis-Chalmers, which we refer to as
Merger Sub, would merge with and into Bronco, and Bronco would survive the
merger as a subsidiary of Allis-Chalmers.  The merger agreement was
approved by our board of directors and by the respective boards of directors of
Allis-Chalmers and Merger Sub.
  The merger
agreement provides that at the effective time of the merger, our stockholders
will receive merger consideration with an aggregate value of approximately
$437.8 million, comprised of (1) $280.0 million in cash and (2) Allis-Chalmers
common stock valued at approximately $157.8 million.  The number of
shares of Allis-Chalmers common stock that will be issued for each share of our
common stock will be calculated based on an exchange ratio that will be
determined by dividing (1) the quotient obtained by dividing $157,836,000 by the
average of the closing sale prices of Allis-Chalmers common stock on the NYSE
Composite Transactions Tape for each of the ten consecutive trading days ending
with the second complete trading day prior to the merger closing date by (2) the
aggregate number of shares of our common stock issued and outstanding
immediately prior to the effective time of the merger.  For more
information regarding the merger, please refer to the joint proxy
statement/prospectus of Allis-Chalmers and Bronco that is included in the
registration statement on Form S-4 (Registration No. 333-149326) filed by
Allis-Chalmers with the SEC on February 20, 2008, as amended, and other relevant
materials that may be filed by us or Allis-Chalmers with the SEC, including any
subsequent amendments to such registration statement.
  We earn our
contract drilling revenues by drilling oil and natural gas wells for our
customers. We obtain our contracts for drilling oil and natural gas wells either
through competitive bidding or through direct negotiations with customers. Our
drilling contracts generally provide for compensation on either a daywork or
footage basis. We have not historically entered into turnkey contracts and do
not intend to enter into turnkey contracts, subject to changes in market
conditions, although it is possible that we may acquire such contracts in
connection with future acquisitions. Contract terms we offer generally depend on
the complexity and risk of operations, the on-site drilling conditions, the type
of equipment used and the anticipated duration of the work to be performed.
Although we currently have ten of our rigs operating under agreements with terms
ranging from one to two years, our contracts generally provide for the drilling
of a single well and typically permit the customer to terminate on short
notice.
  A significant
performance measurement in our industry is operating rig utilization. We compute
operating rig utilization rates by dividing revenue days by total available days
during a period. Total available days are the number of calendar days during the
period that we have owned the operating rig. Revenue days for each operating rig
are days when the rig is earning revenues under a contract, i.e. when the rig
begins moving to the drilling location until the rig is released from the
contract. On daywork contracts, during the mobilization period we typically earn
a fixed amount of revenue based on the mobilization rate stated in the contract.
We begin earning our contracted daywork rate when we begin drilling the well.
Occasionally, in periods of increased demand, we will receive a percentage of
the contracted dayrate during the mobilization period. We account for these
revenues as mobilization fees.
  For the three
months ended March 31, 2008 and 2007 and years ended December 31, 2007, 2006 and
2005, our rig utilization rates, revenue days and average number of operating
rigs were as follows:
 Three
      Months EndedMarch
      31,
                
                
                Years
      Ended December 31,2008
                
                
                2007
                
                
                2007
                
                
                2006
                
                
                2005Average
      number of operating rigs
                
                
                45
                
                
                
                51
                
                
                
                51
                
                
                
                45
                
                
                
                17Revenue
      days
                
                
                2,848
                
                
                
                3,631
                
                
                
                14,245
                
                
                
                15,202
                
                
                
                5,781Utilization
      Rates
                
                
                69
                %
                
                
                79
                %
                
                
                76
                %
                
                
                93
                %
                
                
                95
                %
  The decrease
in the number of revenue days in the three month-period ended March 31, 2008 as
compared to the same period in 2007 is attributable to a decrease in our rig
utilization rate and average number of operating rigs due primarily to the rigs
sold and contributed to Challenger.  See “—Recent Highlights”
below.
 -13-
 Table of Contents
  Market
Conditions in Our Industry
  The
United States contract land drilling services industry is highly cyclical.
Volatility in oil and natural gas prices can produce wide swings in the levels
of overall drilling activity in the markets we serve and affect the demand for
our drilling services and the dayrates we can charge for our rigs. The
availability of financing sources, past trends in oil and natural gas prices and
the outlook for future oil and natural gas prices strongly influence the number
of wells oil and natural gas exploration and production companies decide to
drill.
  The
following table depicts the prices for near month delivery contracts for crude
oil and natural gas as traded on the NYMEX, as well as the most recent Baker
Hughes domestic land rig count, on the dates indicated:
  At
      March 31,
                
                
                At
      December 31,2008
                
                
                2007
                
                
                2006
                
                
                2005Crude
      oil (Bbl)
                
                $
                101.58
                
                
                $
                95.98
                
                
                $
                61.05
                
                
                $
                61.04Natural
      gas (Mmbtu)
                
                $
                10.10
                
                
                $
                7.48
                
                
                $
                6.30
                
                
                $
                11.23U.S.
      Land Rig Count
                
                
                1,748
                
                
                
                1,719
                
                
                
                1,626
                
                
                
                1,391
  We
believe capital spent on incremental natural gas production will be driven by an
increase in hydrocarbon demand as well as changes in supply of natural gas. The
Energy Information Administration estimated that U.S. consumption of natural gas
exceeded domestic production by 16% in 2005 and forecasts that U.S. consumption
of natural gas will exceed U.S. domestic production by 24% in 2010. In addition,
a study published by the National Petroleum Council in September 2003 concluded
from drilling and production data over the preceding ten years that average
“initial production rates from new wells have been sustained through the use of
advanced technology; however, production declines from these initial rates have
increased significantly; and recoverable volumes from new wells drilled in
mature producing basins have declined over time.” The report went on to state
that “without the benefit of new drilling, indigenous supplies have reached a
point at which U.S. production declines by 25% to 30% each year” and predicted
that in ten years eighty percent of gas production “will be from wells yet to be
drilled.” We believe all of these factors tend to support a higher natural gas
price environment, which should create strong incentives for oil and natural gas
exploration and production companies to increase drilling activity in the U.S.
Consequently, these factors may result in higher rig dayrates and rig
utilization.
 
 Critical
Accounting Policies and Estimates
  Our
discussion and analysis of our financial condition and results of operations is
based upon our consolidated financial statements, which have been prepared in
accordance with accounting policies that are described in the notes to our
consolidated financial statements. The preparation of the consolidated financial
statements requires management to make estimates and judgments that affect the
reported amounts of assets, liabilities, revenues and expenses, and related
disclosure of contingent assets and liabilities. We continually evaluate our
judgments and estimates in determining our financial condition and operating
results. Estimates are based upon information available as of the date of the
financial statements and, accordingly, actual results could differ from these
estimates, sometimes materially. Critical accounting policies and estimates are
defined as those that are both most important to the portrayal of our financial
condition and operating results and require management’s most subjective
judgments. The most critical accounting policies and estimates are described
below.
  Revenue and Cost
Recognition—We earn our revenues by drilling oil and natural gas wells
for our customers under daywork or footage contracts, which usually provide for
the drilling of a single well. We recognize revenues on daywork contracts for
the days completed based on the dayrate each contract specifies. Mobilization
revenues and costs are deferred and recognized over the drilling days of the
related drilling contract. Individual contracts are usually completed in less
than 120 days. We follow the percentage-of-completion method of accounting for
footage contract drilling arrangements. Under this method, drilling revenues and
costs related to a well in progress are recognized proportionately over the time
it takes to drill the well. Percentage of completion is determined based upon
the amount of expenses incurred through the measurement date as compared to
total estimated expenses to be incurred drilling the well. Mobilization costs
are not included in costs incurred for percentage-of-completion calculations.
Mobilization costs on footage contracts and daywork contracts are deferred and
recognized over the days of actual drilling. Under the percentage-of-completion
method, management estimates are relied upon in the determination of the total
estimated expenses to be incurred drilling the well. When estimates of revenues
and expenses indicate a loss on a contract, the total estimated loss is
accrued.
  Our
management has determined that it is appropriate to use the
percentage-of-completion method to recognize revenue on our footage contracts,
which is the predominant practice in the industry. Although our footage
contracts do not have express terms that provide us with rights to receive
payment for the work that we perform prior to drilling wells to the agreed upon
depth, we use this method because, as provided in applicable accounting
literature, we believe we achieve a continuous sale for our work-in-progress and
we believe, under applicable state law, we ultimately could recover the fair
value of our work-in-progress even in the event we were unable to drill to the
agreed upon depth in breach of the applicable contract. However, ultimate
recovery of that value, in the event we were unable to drill to the agreed upon
depth in breach of the contract, would be subject to negotiations with the
customer and the possibility of litigation.
  We are
entitled to receive payment under footage contracts when we deliver to our
customer a well completed to the depth specified in the contract, unless the
customer authorizes us to drill to a shallower depth. Since inception, we have
completed all our footage contracts. Although our initial cost estimates for
footage contracts do not include cost estimates for risks such as stuck drill
pipe or loss of circulation, we believe that our experienced management team,
our knowledge of geologic formations in our areas of operations, the condition
of our drilling equipment and our experienced crews enable us to make reasonably
dependable cost estimates and complete contracts according to our drilling plan.
While we do bear the risk of loss for cost overruns and other events that are
not specifically provided for in our initial cost estimates, our pricing of
footage contracts takes such risks into consideration. When we encounter, during
the course of our drilling operations, conditions unforeseen in the preparation
of our original cost estimate, we immediately adjust our cost estimate for the
additional costs to complete the contracts. If we anticipate a loss on a
contract in progress at the end of a reporting period due to a change in our
cost estimate, we immediately accrue the entire amount of the estimated loss,
including all costs that are included in our revised estimated cost to complete
that contract, in our consolidated statement of operations for that reporting
period.  We are more likely to encounter losses on footage contracts
in years in which revenue rates are lower for all types of
contracts.
  Revenues
and costs during a reporting period could be affected by contracts in progress
at the end of a reporting period that have not been completed before our
financial statements for that period are released. We had no footage contracts
in progress at March 31, 2008 and December 31, 2007. At March 31, 2008
and December 31, 2007, our contract drilling in progress totaled $2.6 million
and $2.1 million, respectively, all of which relates to the revenue recognized
but not yet billed or costs deferred on daywork contracts in
progress.
  We accrue
estimated contract costs on footage contracts for each day of work completed
based on our estimate of the total costs to complete the contract divided by our
estimate of the number of days to complete the contract. Contract costs include
labor, materials, supplies, repairs and maintenance and operating overhead
allocations. In addition, the occurrence of uninsured or under-insured losses or
operating cost overruns on our footage contracts could have a material adverse
effect on our financial position and results of operations. Therefore, our
actual results could differ significantly if our cost estimates are later
revised from our original estimates for contracts in progress at the end of a
reporting period that were not completed prior to the release of our financial
statements.
  Accounts
Receivable—We evaluate the creditworthiness of our customers based on
their financial information, if available, information obtained from major
industry suppliers, current prices of oil and natural gas and any past
experience we have with the customer. Consequently, an adverse change in those
factors could affect our estimate of our allowance for doubtful accounts. In
some instances, we require new customers to establish escrow accounts or make
prepayments. We typically invoice our customers at 30-day intervals during the
performance of daywork contracts and upon completion of the daywork contract.
Footage contracts are invoiced upon completion of the contract. Our typical
contract provides for payment of invoices in 10 to 30 days. We generally do not
extend payment terms beyond 30 days. We are currently involved in legal actions
to collect various overdue accounts receivable.  Our allowance for
doubtful accounts was $1.6 million and $1.8 million at March 31, 2008 and
December 31, 2007, respectively. Any allowance established is subject to
judgment and estimates made by management. We determine our allowance by
considering a number of factors, including the length of time trade accounts
receivable are past due, our previous loss history, our customer’s current
ability to pay its obligation to us and the condition of the general economy and
the industry as a whole. We write off specific accounts receivable when they
become uncollectible and payments subsequently received on such receivables
reduce the allowance for doubtful accounts.
  If a
customer defaults on its payment obligation to us under a footage contract, we
would need to rely on applicable law to enforce our lien rights, because our
footage contracts do not expressly grant to us a security interest in the work
we have completed under the contract and we have no ownership rights in the
work-in-progress or completed drilling work, except any rights arising under the
applicable lien statute on foreclosure. If we were unable to drill to the agreed
on depth in breach of the contract, we might also need to rely on equitable
remedies outside of the contract, including quantum meruit, available in
applicable courts to recover the fair value of our work-in-progress under a
footage contract.
  Asset Impairment
and Depreciation—We review long-lived assets to be held and used for
impairment whenever events or changes in circumstances indicate that the
carrying amount of the assets may not be recoverable.  We also
evaluate the carrying value of goodwill during the fourth quarter of each year
and between annual evaluations if events occur or circumstances change that
would more likely than not reduce the fair value below its carrying
amount.  Factors that we consider important and could trigger an
impairment review would be our customers’ financial condition and any
significant negative industry or economic trends. More specifically, among other
things, we consider our contract revenue rates, our rig utilization rates, cash
flows from our drilling rigs, current oil and natural gas prices, industry
analysts’ outlook for the industry and their view of our customers’ access to
debt or equity and the trends in the price of used drilling equipment observed
by our management. If a review of our drilling rigs, intangible assets and
goodwill indicate that our carrying value exceeds the estimated undiscounted
future cash flows, we are required under applicable accounting standards to
write down the drilling equipment, intangible assets and goodwill to its fair
market value. A one percent write-down in the cost of our drilling equipment,
intangible assets, and goodwill, at March 31, 2008, would have resulted in a
corresponding decrease in our net income of approximately $2.7
million.
 -14-
 Table of Contents
  Our
determination of the estimated useful lives of our depreciable assets, directly
affects our determination of depreciation expense and deferred taxes. A decrease
in the useful life of our drilling equipment would increase depreciation expense
and reduce deferred taxes. We provide for depreciation of our drilling rigs,
transportation and other equipment on a straight-line method over useful lives
that we have estimated and that range from three to fifteen years after the rig
was placed into service. We record the same depreciation expense whether an
operating rig is idle or working. Depreciation is not recorded on an inventoried
rig until placed in service. Our estimates of the useful lives of our drilling,
transportation and other equipment are based on our experience in the drilling
industry with similar equipment.
  We
capitalize interest cost as a component of drilling and workover rigs
refurbished for our own use. During the three months ended March 31, 2008
and 2007, we capitalized approximately $382,000 and $454,000,
respectively.
 
 Stock Based
Compensation---We have adopted SFAS No. 123(R), “Share-Based Payment” upon
granting our first stock options on August 16, 2005. SFAS No. 123(R)
requires a public entity to measure the costs of employee services received in
exchange for an award of equity or liability instruments based on the grant-date
fair value of the award. That cost will be recognized over the periods during
which an employee is required to provide service in exchange for the
award.  Stock compensation expense was $1.1 million and $693,000 for
the three months ended March 31, 2008 and 2007, respectively.
  The fair
value of each option award is estimated on the date of grant using a Black
Scholes valuation model that uses various assumptions related to volatility,
expected life, forfeitures, exercise patterns, risk free rates and expected
dividends. Expected volatilities are based on the historical volatility of a
selected peer and other factors. The majority of our options were granted to
employees that made up one group with similar expected exercise behavior for
valuation purposes. The expected term of options granted was estimated based on
an average of the vesting period and the contractual period. The risk-free rate
for periods within the contractual life of the option was based on the U.S.
Treasury yield curve in effect at the time of the grant.
  We have
not declared dividends since we became a public company and do not intend to do
so in the foreseeable future, and thus did not use a dividend yield. Expected
life has been determined using the permitted short cut method.
 
 Under our
2005 Stock Incentive Plan, employee stock options become exercisable in equal
monthly installments over a three-year period, and all options generally expire
ten years after the date of grant. The 2005 Plan provides that all options must
have an exercise price not less than the fair market value of our common stock
on the date of the grant.
 
 On April
20, 2007, we filed a Tender Offer Statement on Schedule TO relating to our offer
to twenty-five eligible directors, officers, employees and consultants to
exchange certain outstanding options to purchase shares of our common stock for
restricted stock awards consisting of the right to receive restricted shares of
our common stock, which we refer to as the “restricted stock awards.” The offer
expired on May 21, 2007. Pursuant to the offer, we accepted for cancellation
eligible options to purchase 729,000 shares of our common stock tendered by
directors, officers, employees and consultants eligible to participate in the
offer.  Subject to the terms and conditions of the offer, on May 21,
2007 we granted one restricted stock award in exchange for every two shares of
common stock underlying the eligible options tendered.  Half of the
restricted stock awards vested on January 1, 2008 and the balance vest
on January 1, 2009, subject to earlier vesting or forfeiture in
certain circumstances. We granted the restricted stock awards under our 2006
Stock Incentive Plan, effective as of April 20, 2006.
 
 An
incremental cost was computed in accordance with SFAS No. 123(R) upon the
conversion of options to restricted stock.  The incremental cost was
measured as the excess of the fair value of the modified award over the fair
value to the original award immediately preceding conversion, measured based on
the share price and other pertinent factors at that date.  The
incremental cost to be recognized over the vesting period of the modified award
is $387,000.
  Deferred Income
Taxes—We provide deferred income taxes for the basis difference in our
property and equipment, stock compensation expense and other items between
financial reporting and tax reporting purposes. For property and equipment,
basis differences arise from differences in depreciation periods and methods and
the value of assets acquired in a business acquisition where we acquire the
stock in an entity rather than just its assets. For financial reporting
purposes, we depreciate the various components of our drilling rigs and
refurbishments over fifteen years, while federal income tax rules require that
we depreciate drilling rigs and refurbishments over five years. Therefore, in
the first five years of our ownership of a drilling rig, our tax depreciation
exceeds our financial reporting depreciation, resulting in our providing
deferred taxes on this depreciation difference. After five years, financial
reporting depreciation exceeds tax depreciation, and the deferred tax liability
begins to reverse.
  Other Accounting
Estimates—Our other accrued expenses as of March 31, 2008 and
December 31, 2007 included accruals of approximately $2.4 million and $3.0
million, respectively, for costs under our workers’ compensation insurance. We
have a deductible of $1.0 million per covered accident under our workers’
compensation insurance. We maintain letters of credit in the aggregate amount of
$7.3 million for the benefit of various insurance companies as collateral for
retrospective premiums and retained losses which may become payable under the
terms of the underlying insurance contracts.  The letters of credit
are typically renewed annually.  No amounts have been drawn under the
letters of credit. At March 31, 2008 and December 31, 2007, we had deposits
of $2.8 million and $2.7 million, respectively, with an insurance company
collateralizing a letter of credit. We accrue for these costs as claims are
incurred based on cost estimates established for each claim by the insurance
companies providing the administrative services for processing the claims,
including an estimate for incurred but not reported claims, estimates for claims
paid directly by us, our estimate of the administrative costs associated with
these claims and our historical experience with these types of
claims.  We also have a self-insurance program for major medical,
hospitalization and dental coverage for employees and their
dependents.  We recognize both reported and incurred but not reported
costs related to the self-insurance portion of our health
insurance.  Since the accrual is based on estimates of expenses for
claims, the ultimate amount paid may differ from accrued amounts.
 
 Recent Accounting
Pronouncements— In
September 2006, the FASB issued SFAS No. 157, or SFAS 157, “Fair Value
Measurements.”  This Statement defines fair value, establishes
a framework for measuring fair value in generally accepted accounting
principles, or GAAP, and expands disclosures about fair value measurements. This
Statement applies under other accounting pronouncements that require or permit
fair value measurements, the FASB having previously concluded in those
accounting pronouncements that fair value is the relevant measurement attribute.
Accordingly, this Statement does not require any new fair value measurements.
This Statement is effective for fiscal years beginning after November 15, 2007;
however, on February 12, 2008, the FASB issued FSP FAS No. 157-2, Effective Dates of FASB Statement
No. 157,which delays the effective date of SFAS No. 157 to fiscal years
beginning after November 15, 2008 for all nonfinancial assets and nonfinancial
liabilities, except those that are recognized or disclosed at fair value in the
financial statements on a recurring basis.  The adoption of the
provisions of SFAS 157 did not have a material impact on our financial
statements.
 
 In February
2007, the FASB issued SFAS No. 159, or SFAS 159, “The Fair Value Option for Financial
Assets and Financial Liabilities−Including an amendment of FASB Statement No.
115.” SFAS No. 159 permits entities to choose to measure many financial
instruments and certain other items at fair value. Unrealized gains and losses
on items for which the fair value option has been elected will be recognized in
earnings at each subsequent reporting date. SFAS No. 159 is effective for fiscal
years beginning January 1, 2008. The adoption of the provisions of SFAS 159 did
not have a material impact on our financial statements.
  In December
2007, the FASB issued SFAS No. 141 (revised 2007) “Business Combinations”, or
SFAS 141R. SFAS 141R establishes principles and requirements for how the
acquirer of a business recognizes and measures in its financial statements the
identifiable assets acquired, the liabilities assumed, and any noncontrolling
interest in the acquiree. SFAS 141R also provides guidance for recognizing and
measuring the goodwill acquired in the business combination and determines what
information to disclose to enable users of the financial statements to evaluate
the nature and financial effects of the business combination. SFAS No. 141R
applies prospectively to business combinations for which the acquisition date is
on or after the beginning of the first annual reporting period beginning on or
after December 15, 2008. We are currently evaluating the potential impact, if
any, of the adoption of SFAS 141R on our consolidated financial
statements.
  In December
2007, the FASB issued SFAS No. 160, or SFAS 160, “Noncontrolling Interests in
Consolidated Financial Statements — an amendment of ARB No. 51.” SFAS 160
establishes accounting and reporting standards for the noncontrolling interest
in a subsidiary and for the deconsolidation of a subsidiary. It clarifies that a
noncontrolling interest in a subsidiary is an ownership interest in the
consolidated entity that should be reported as equity in the consolidated
financial statements. SFAS 160 requires retroactive adoption of the presentation
and disclosure requirements for existing minority interests. All other
requirements of SFAS 160 shall be applied prospectively. SFAS 160 is effective
for fiscal years, and interim periods within those fiscal years, beginning on or
after December 15, 2008. We are currently evaluating the potential impact, if
any, of the adoption of SFAS 141R on our consolidated financial
statements.
  In March
2008, the FASB issued SFAS No. 161, or SFAS 161, “Disclosures about Derivative
Instruments and Hedging Activities – an amendment of FASB Statement No.
133.”  SFAS 161 requires enhanced disclosures for derivative
instruments and hedging activities that include how and why an entity uses
derivatives, how instruments and the related hedged items are accounted for
under FAS 133 and related interpretations, and how derivative instruments and
related hedged items affect the entity’s financial position, results of
operations and cash flows.  SFAS 161 is effective for financial
statements issued for fiscal years and interim periods beginning after November
15, 2008. We do not expect the adoption of SFAS 161 to have a material impact on
our financial position or results of operations.
 -15-
 Table of Contents
  Recent
Highlights
 
 The
following are highlights that impacted our liquidity or results of operations
for the three months ended March 31, 2008:
  On January 4,
2008, Bronco MENA Investments LLC, one of our wholly-owned subsidiaries, closed
a transaction with Challenger Limited, or Challenger, a company organized under
the laws of the Isle of Man, and certain of its affiliates to acquire a 25%
equity interest in Challenger in exchange for six drilling rigs and $5.1 million
in cash.  Challenger is an international provider of contract land
drilling and workover services to oil and natural gas companies with its
principal operations in Libya. We also sold to Challenger four drilling
rigs and ancillary equipment for $13.0 million, payable in installments. The
transactions were completed on January 4, 2008.  We recorded a net
gain of $4,707 relating to the exchange and sale of rigs and equipment to
Challenger. The transactions were completed on January 4, 2008. Prior to these
transactions, Challenger owned a fleet of 23 rigs. We recorded equity in income
of investment of $1,845 for the three months ended March 31, 2008 related to
its equity investment in Challenger.
 On January
23, 2008, we entered into an agreement and plan of merger with Allis-Chalmers
and Merger Sub, providing for the acquisition of Bronco by
Allis-Chalmers.  Under the terms of the merger agreement, which was
approved by the respective boards of directors of each of the Company,
Allis-Chalmers and Merger Sub, Merger Sub will merge with and into the Company,
with the Company surviving as a wholly owned subsidiary of
Allis-Chalmers.  The merger agreement provides that, at the effective
time of the merger, Bronco stockholders will receive merger consideration with
an aggregate value of approximately $437.8 million, comprised of (a) an
aggregate of $280.0 million in cash and (b) shares of Allis-Chalmers common
stock having an aggregate value of approximately $157.8 million. The number of
shares issued as merger consideration will be based on the average closing price
of Allis-Chalmers common stock for a ten trading day period ending two days
prior to the closing.  Allis Chalmers will also assume all of the
outstanding debt of Bronco, which totaled $68.1 million at December 31,
2007.
  For more
information regarding the merger, please refer to the joint proxy
statement/prospectus of Allis-Chalmers and Bronco that is included in the
registration statement on Form S-4 (Registration No. 333-149326) filed by
Allis-Chalmers with the SEC on February 20, 2008, as amended, and other relevant
materials that may be filed by us or Allis-Chalmers with the SEC, including any
subsequent amendments to such registration statement.
  Results
of Operations
 
 Three
Months Ended March 31, 2008 Compared to Three Months Ended March 31,
2007
  Contract Drilling
Revenue. For the three months ended March 31, 2008, we reported
contract drilling revenues of $54.1 million, a 27% decrease from revenues of
$74.5 million for the same period in 2007. The decrease is primarily due to a
decrease in dayrates, revenue days and average number of rigs working for the
three months ended March 31, 2008 as compared to the same period in 2007.
Average dayrates for our drilling services decreased $1,648, or 9%, to $17,101
for the three months ended March 31, 2008 from $18,749 in the same period in
2007. Revenue days decreased 22% to 2,848 days for the three months ended March
31, 2008 from 3,631 days during the same period in 2007. Our average number of
operating rigs decreased to 45 from 51, or 12%, for the three months ended March
31, 2008 as compared to the same period in 2007. The decrease in the number of
revenue days and size of our operating rig fleet for the three months ended
March 31, 2008 as compared to the same period in 2007 is primarily due to the
sale and contribution of rigs to Challenger.
  Well Service
Revenue.For the three months ended March 31, 2008, we
reported well service revenues of approximately $8.2 million, a 87% increase
from revenues of $4.4 million for the same period in 2007.  The
increase is primarily due to an increase in revenue hours and average number of
operating workover rigs for the three months ended March 31, 2008 as compared to
the same period in 2007.  Revenue hours increased 98% to 23,865 hours
for the three months ended March 31, 2008 from 12,047 hours during the same
period in 2007.  Our average number of operating workover rigs
increased to 48 from 24, or 100%, for the three months ended March 31, 2008 as
compared to the same period in 2007.  The increase in revenue hours
and size of our operating workover rig fleet is due to additional workover rigs
purchased during 2007.
 
 Contract Drilling
Expense. Direct rig cost decreased $7.6 million to $33.2 million for
the three months ended March 31, 2008 from $40.8 million for the same period in
2007. This 19% decrease is primarily due to the decrease in revenue days and the
decrease in average number of operating rigs in our fleet for the three months
ended March 31, 2008 as compared to the same period in 2007.  As a
percentage of contract drilling revenue, drilling expense increased to 62% for
the three-month period ended March 31, 2008 from 55% for the same period in 2007
due primarily to expenses related to the retention of crews on idle or
underutilized rigs.
  Well Service
Expense. Well service expense increased $2.3 million to $4.9 million for
the three months ended March 31, 2008 from $2.6 million for the same period in
2007.  This 87% increase is primarily due to the increase in revenue
hours and the average number of operating workover rigs in our fleet for the
three months ended March 31, 2008 as compared to the same period in
2007.
  Depreciation
Expense. Depreciation expense increased $720,000 to $11.9 million
for the three months ended March 31, 2008 from $11.2 million for the same period
in 2007. The increase is primarily due to the 4% increase in fixed
assets.
  General and
Administrative Expense. General and administrative expense increased
$1.0 million to $5.7 million for the three months ended March 31, 2008 from $4.7
million for the same period in 2007. The increase is the result of an increase
in payroll costs of $591,000, an increase in stock compensation expense of
$427,000 and an increase in professional fees expense of $93,000.  The
increase in payroll costs is primarily due to our increased administrative
employee count and related wage increases.  The increase in stock
compensation expense is attributed to grants of restricted stock during 2007 and
the three months ended March 31, 2008.  These increases were partially
offset by a decrease in yard expense of $286,000.  The decrease in
yard expense is primarily due to decreased activity in the yards as a result of
the slowdown of our rig refurbishment program.
 
 Interest
Expense. Interest expense decreased $42,000 to $1.2 million for the
three months ended March 31, 2008 from $1.3 million for the same period in 2007.
The decrease is due to a decrease in the average interest rate on our revolving
credit facility, partially offset by a decrease in the capitalization of
interest expense related to our rig refurbishment program. We capitalized
$382,000 of interest for the three months ended March 31, 2008 as compared to
$454,000 for the same period in 2007.
 
 Tax Expense
(Benefit). We recorded a tax expense of $4.6 million for the
three months ended March 31, 2008 all of which was deferred tax expense.
This compares to a deferred tax expense of $4.4 million for the three months
ended March 31, 2007. This increase is due to the deferral of the gain
recognized on the rigs contributed to Challenger, partially offset by a
decrease in pre-tax income.
 
 Liquidity
and Capital Resources
  Operating
Activities. Net cash provided by
operating activities was $14.9 million for the three months ended March 31, 2008
as compared to $15.2 million in 2007. The decrease of $295,000 from 2007 to 2008
was primarily due to a decrease in cash receipts from customers, partially
offset by lower cash payments to suppliers.
  Investing
Activities. We use a significant
portion of our cash flows from operations and financing activities for
acquisitions and the refurbishment of our rigs. Cash used in investing
activities was $20.9 million for the three months ended March 31, 2008 as
compared to $17.1 million for the same period in 2007.   For the
three months ended March 31, 2008, we used $18.5 million to purchase fixed
assets and $5.1 million to purchase an equity interest in
Challenger.  These amounts were partially offset by $2.6 million of
proceeds received from the sale of assets.  For the three months ended
March 31, 2007, we used $ 16.2 million to purchase fixed assets and $2.3
million to purchase Eagle Well Service, Inc, or Well Services.  These
amounts were partially offset by $1.4 million of proceeds received from the sale
of assets.
 
 Financing
Activities. Our cash flows provided
by financing activities were $3.3 million for the three months ended March 31,
2008 as compared to $6.8 million used in financing activities for the same
period in 2007. For the three months ended March 31, 2008, our net cash provided
by financing activities related to borrowings of $5.0 million under our credit
facility with Fortis Capital Corp., partially offset by principal payments of
$1.7 million to various lenders.  Our net cash used in 2007 for
financing activities related to principal payments of $14.8 million under our
credit agreement with Fortis Capital Corp., partially offset by borrowings of
$8.0 million under our credit facility with Fortis Capital Corp.
  Sources of
Liquidity. Our primary sources of
liquidity are cash from operations and debt and equity financing.
 
 Debt
Financing.   On January 13, 2006, we entered into a
$150.0 million revolving credit facility with Fortis Capital Corp., as
administrative agent, lead arranger and sole bookrunner, and a syndicate of
lenders, which include The Royal Bank of Scotland plc, The CIT Group/Business
Credit, Inc., Calyon Corporate and Investment Bank, Merrill Lynch Capital,
Comerica Bank and Caterpillar Financial Services Corporation. The revolving
credit facility matures on January 13, 2009. The Company intends to
refinance the revolving credit facility during 2008.  The initial
aggregate revolving commitment of $150.0 million is automatically and
permanently reduced by $10.0 million at the end of each fiscal quarter starting
September 30, 2006.  The aggregate revolving commitment was $80.0
million as of March 31, 2008.  Loans under the revolving credit
facility bear interest at LIBOR plus a margin that can range from 2.0% to 3.0%
or, at our option, the prime rate plus a margin that can range from 1.0% to
2.0%, depending on the ratio of our outstanding senior debt to “Adjusted
EBITDA,” as defined in the credit agreement. Our borrowings under this revolving
credit facility were used to fund a portion of our acquisition of drilling rigs
and other assets from Big A Drilling Company, L.C. and to repay in full all
outstanding borrowings under our term loan with Merrill Lynch Capital and our
revolving line of credit with International Bank of Commerce.
 -16-
 Table of Contents
  The
revolving credit facility also provides for a quarterly commitment fee of
0.5% per annum of the unused portion of the revolving credit facility, and
fees for each letter of credit issued under the facility. Commitment fees
expense for the three months ended March 31, 2008 and 2007 were $59,000 and
$161,000, respectively.  Our subsidiaries have guaranteed the loans
and other obligations under the revolving credit facility. The obligations under
the revolving credit facility and the related guarantees are secured by a first
priority security interest in substantially all of our assets, as well as the
shares of capital stock of our direct and indirect
subsidiaries.
  The
revolving credit facility contains customary covenants for facilities of this
type, including among other things, covenants that restrict our ability to make
capital expenditures, incur indebtedness, incur liens, dispose of property,
repay debt, pay dividends, repurchase shares and make certain acquisitions. The
financial covenants are a minimum fixed charge coverage ratio of 1.75 to 1.00
and a maximum total leverage ratio of 2.00 to 1.00. We were in compliance with
all covenants at March 31, 2008.  The revolving credit facility
provides for mandatory prepayments under certain circumstances. The revolving
credit facility contains various events of default, including failure to pay
principal and interest when due, breach of covenants, materially incorrect
representations, default under certain other agreements, bankruptcy or
insolvency, the occurrence of specified ERISA events, entry of enforceable
judgments against us in excess of $3.0 million not stayed, and the occurrence of
a change of control. If an event of default occurs, all commitments under the
revolving credit facility may be terminated and all of our obligations under the
revolving credit facility could be accelerated by the lenders, causing all loans
outstanding (including accrued interest and fees payable thereunder) to be
declared immediately due and payable.
  We are
party to term installment loans for an aggregate principal amount of
approximately $4.5 million. These term loans are payable in 96 monthly
installments, mature in 2013 and 2014 and have a weighted average annual
interest rate of 6.92%. The proceeds from these term loans were used to purchase
cranes.
  We are
party to a term loan agreement with Ameritas Life Insurance Corp. for an
aggregate principal amount of approximately $1.6 million related to the
acquisition of a building. This term loan is payable in 166 monthly
installments, matures in 2021 and has an interest rate of 6%.
  Issuances
of Equity.
  In
connection with our acquisition of Well Services in January 2007, we issued
1,070,390 shares of our common stock.
  Capital
Expenditures.
  We believe
that cash flow from our operations and borrowings under our revolving credit
facility will be sufficient to fund our operations for at least the next 12
months. The Company intends to refinance its revolving credit facility during
2008 that matures on January 13, 2009.  However, additional capital
may be required for future acquisitions. While we would expect to fund such
acquisitions with additional borrowings and the issuance of debt and equity
securities, we cannot assure you that such funding will be available or, if
available, that it will be on terms acceptable to us.
  Item 3. Quantitative and Qualitative Disclosures About Market
Risks
  We are
subject to market risk exposure related to changes in interest rates on our
outstanding floating rate debt. Borrowings under our revolving credit facility
bear interest at a floating rate equal to LIBOR plus a margin that can range
from 2.0% to 3.0% or, at our option, the prime rate plus a margin that can range
from 1.0% to 2.0%, depending on the ratio of our outstanding senior debt to
Adjusted EBITDA, as defined in our credit agreement with Fortis Capital Corp. An
increase or decrease of 1% in the interest rate would have a corresponding
decrease or increase in our net income (loss) of approximately $405,000
annually, based on the $65.0 million outstanding in the aggregate under our
credit facility as of March 31, 2008.
 
 Item 4.
Controls and Procedures.
 
 Evaluation of Disclosure Control and
Procedures.
  As of the end
of the period covered by this Quarterly Report on Form 10−Q, our management,
under the supervision and with the participation of our Chief Executive Officer
and Chief Financial Officer, evaluated the effectiveness of the design and
operation of our disclosure controls and procedures (as defined in Rules
13a−15(e) or 15d−15(e) under the Securities Exchange Act of 1934, as amended).
Based on that evaluation, our Chief Executive Officer and Chief Financial
Officer concluded that as of March 31, 2008 our disclosure controls and
procedures are effective.
  Disclosure
controls and procedures are controls and procedures designed to ensure that
information required to be disclosed in our reports filed or submitted under the
Securities Exchange Act of 1934 is recorded, processed, summarized and reported
within the time periods specified in the SEC's rules and forms; and include
controls and procedures designed to ensure that information is accumulated and
communicated to our management, and made known to our Chief Executive Officer
and Chief Financial Officer, particularly during the period when this Quarterly
Report on Form 10−Q was prepared, as appropriate to allow timely decision
regarding the required disclosure.
 
 Changes in Internal Control over
Financial Reporting.
 
 There were no
changes in our internal control over financial reporting that occurred during
the first quarter of 2008 that have materially affected, or are reasonably
likely to materially affect, our internal control over financial
reporting.
 -17-
 Table of Contents
  PART
II: OTHER INFORMATION
 
 Item 1.
Legal Proceedings
  Three
purported stockholders of the Company have separately filed complaints seeking
class action status relating to the merger involving the Company, Allis-Chalmers
Energy, Inc. (“Allis-Chalmers”) and Elway Merger Sub, Inc., a wholly-owned
subsidiary of Allis-Chalmers (“Merger Sub”) that was publicly announced on
January 24, 2008.  Two actions were filed in the District Court of
Oklahoma County in the State of Oklahoma on January 29, 2008 and February 28,
2008, respectively.  The two actions were consolidated into a single
action in the District Court of Oklahoma County in the State of Oklahoma on
April 9, 2008.  The third action was filed in the Court of Chancery in
the State of Delaware on January 29, 2008.  The defendants named in
the consolidated Oklahoma action are Bronco, the Bronco board of directors, and
Allis-Chalmers.  The defendants named in the Delaware action are
Bronco, the Bronco board of directors, Allis-Chalmers, and Merger
Sub.  The complaints generally allege that the merger consideration is
inadequate, that the Bronco board of directors has breached its fiduciary
duties, that Allis-Chalmers has aided and abetted the Bronco board of directors’
breaches of fiduciary duties, and that the preliminary joint proxy
statement/prospectus included as part of Allis-Chalmers’ registration statement
on Form S-4, filed with the Securities and Exchange Commission (the “SEC”)
February 20, 2008, contains materially incomplete and misleading
information.  The actions generally seek to enjoin the merger and
cause Bronco board of directors to undertake an auction for Bronco or otherwise
take action to maximize stockholder value.  The Delaware action also
seeks monetary damages for Bronco’s stockholders, and the consolidated Oklahoma
action requests that the proposed merger be rescinded if it is
consummated.  On April 17, 2008, the plaintiffs in the consolidated
Oklahoma action filed an amended complaint.  The response of Bronco
and Bronco’s board of directors is due on May 14, 2008.  On April 23,
2008, the plaintiffs in the Delaware Action filed an amended
complaint.  The response of Bronco and Bronco’s board of directors is
due on May 23, 2008.  Discovery in both actions is ongoing at this
time.  Bronco intends to vigorously defend these
actions.  As of this time, no order has been issued in either
proceeding that would preclude the consummation of the merger.  Each
of Allis-Chalmers and Bronco has the right to terminate the merger agreement in
the event a court enjoins the consummation of the merger.
 
 Various
other claims and lawsuits, incidental to the ordinary course of business, are
pending against the Company. In the opinion of management, all matters are
adequately covered by insurance or, if not covered, are not expected to have a
material effect on the Company’s consolidated financial position, results of
operations or cash flows.
 
 Item 1A.
Risk Factors
 
 There
have been no material changes to the Risk Factors previously disclosed in our
Annual Report on Form 10-K for the year ended December 31, 2007 filed with
the SEC on March 17, 2008.
 
 Item 2.
Unregistered Sales of Equity Securities and Use of Proceeds
 
 None.
  Item 3.
Defaults Upon Senior Securities
 
 None.
  Item 4.
Submission of Matters to a Vote of Security Holders
 
 None.
 
 Item 5.
Other Information
 
 None.
 -18-
 Table of Contents
  Item 6.
Exhibits
 
 Exhibits:
  Exhibit
                  No.
                Description2.1
                Merger
      Agreement, dated as of August 11, 2005, by and among Bronco Drilling
      Holdings, L.L.C, Bronco Drilling Company, L.L.C. and Bronco Drilling
      Company, Inc. (incorporated by reference to Exhibit 2.1 to the
      Registration Statement on Form S-1, File No. 333-128861, filed by the
      Company with the SEC on October 6, 2005).2.2
                Agreement
      and Plan of Merger, dated as of January 23, 2008, by and among Bronco
      Drilling Company, Inc., Allis-Chalmers Energy, Inc. and Elway Merger Sub,
      Inc. (incorporated by reference to Exhibit 2.1 to the Current Report on
      Form 8-K, File No. 000-51471, filed by the Company with the SEC on January
      24, 2008).3.1
                Amended
      and Restated Certificate of Incorporation of the Company, dated August 11,
      2005 (incorporated by reference to Exhibit 2.1 to the Registration
      Statement on Form S-1, File No. 333-128861, filed by the Company with the
      SEC on October 6, 2005).3.2
                Bylaws
      of the Company (incorporated by reference to Exhibit 3.2 to Amendment No.
      1 to the Registration Statement on Form S-1, File No. 333-125405, filed by
      the Company with the SEC on July 14, 2005).4.1
                Form
      of Common Stock certificate (incorporated by reference to Exhibit 4.1 to
      Amendment No. 2 to the Registration Statement on Form S-1, File No.
      333-125405, filed by the Company with the SEC on August 2,
      2005).*31.1
                Certification
      of Chief Executive Officer of Bronco Drilling Company, Inc. pursuant to
      Rule 13a-14(a) promulgated under the Securities Exchange Act of 1934, as
      amended.*31.2
                Certification
      of Chief Financial Officer of Bronco Drilling Company, Inc. pursuant to
      Rule 13a-14(a) promulgated under the Securities Exchange Act of 1934, as
      amended*32.1
                Certification
      of Chief Executive Officer of Bronco Drilling Company, Inc. pursuant to
      Rule 13a-14(b) promulgated under the Securities Exchange Act of 1934, as
      amended, and Section 1350 of Chapter 63 of Title 18 of the United States
      Code.*32.2
                Certification
      of Chief Financial Officer of Bronco Drilling Company, Inc. pursuant to
      Rule 13a-14(b) promulgated under the Securities Exchange Act of 1934, as
      amended, and Section 1350 of Chapter 63 of Title 18 of the United States
      Code.
 
 *
                Filed
      herewith.
  -19-
 Table of Contents
  SIGNATURE
 
 Pursuant
to the requirements of the Securities Exchange Act of 1934, the Registrant has
duly caused this report to be signed on their behalf by the undersigned,
thereunto duly authorized.
  Dated:
      May 12, 2008
                
                BRONCO
      DRILLING COMPANY, INC.By:
      /s/
      Zachary M. GravesZachary
      M. GravesChief
      Financial Officer(Principal
      Accounting and Financial Officer)Dated:
      May 12, 2008
                
                By:
      /s/
      D. Frank HarrisonD.
      Frank HarrisonChief
      Executive Officer(Authorized
      Officer and Principal Executive Officer)
 -20-