10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

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

For the Quarterly Period Ended March 31, 2013

o 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: 001-34090

Tesco Corporation

(Exact name of registrant as specified in its charter)

Alberta	76-0419312
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)
3993 West Sam Houston Parkway North Suite 100 Houston, Texas	77043-1221
(Address of Principal Executive Offices)	(Zip Code)

713-359-7000

(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 has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).     Yes   x   No   ¨

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

Large Accelerated Filer   o Accelerated Filer   x Non-Accelerated Filer   o Smaller Reporting Company   ¨

Indicate by check mark whether registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes  ¨     No x

Indicate the number of shares outstanding of each of the issuer’s classes of common stock as of the latest practicable date.

Number of shares of Common Stock outstanding as of April 30, 2013:   38,948,932

TABLE OF CONTENTS

		Page
PART I—FINANCIAL INFORMATION
Item 1.	Financial Statements	1
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	14
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	21
Item 4.	Controls and Procedures	21
PART II—OTHER INFORMATION
Item 1.	Legal Proceedings	23
Item 1A.	Risk Factors	23
Item 6.	Exhibits	23

Below is a list of defined terms that are used throughout this document:

TESCO’s Casing Drive System	= CDS™ or CDS
TESCO’s Multiple Control Line Running System	= MCLRS™ or MCLRS

A list of our trademarks and the countries in which they are registered is presented below:

Trademark	Country of Registration
TESCO®	United States, Canada
Casing Drive System™	United States, Canada
CDS™	United States, Canada
Multiple Control Line Running System™	United States, Canada
MCLRS™	United States, Canada

When we refer to “TESCO”, “we”, “us”, “our”, “ours”, or “the Company”, we are describing Tesco Corporation and our subsidiaries.

Caution Regarding Forward-Looking Information; Risk Factors

This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of Canadian and United States securities laws, including the United States Private Securities Litigation Reform Act of 1995.  From time to time, our public filings, press releases, and other communications (such as conference calls and presentations) will contain forward-looking statements.  Forward-looking information is often, but not always, identified by the use of words such as “anticipate,” “believe,” “expect,” “plan,” “intend,” “forecast,” “target,” “project,” “may,” “will,” “should,” “could,” “estimate,” “predict,” or similar words suggesting future outcomes or language suggesting an outlook.  Forward-looking statements in this Quarterly Report on Form 10-Q include, but are not limited to, statements with respect to expectations of our prospects, future revenue, earnings, activities, and technical results.

Forward-looking statements and information are based on current beliefs as well as assumptions made by, and information currently available to, us concerning anticipated financial performance, business prospects, strategies, and regulatory developments.  Although management considers these assumptions to be reasonable based on information currently available to it, they may prove to be incorrect.  The forward-looking statements in this Quarterly Report on Form 10-Q are made as of the date they were issued and we do not undertake any obligation to update publicly or to revise any of the included forward-looking statements, whether as a result of new information, future events, or otherwise, except as required by applicable law.

By their very nature, forward-looking statements involve inherent risks and uncertainties, both general and specific, and risks that outcomes implied by forward-looking statements will not be achieved.  We caution readers not to place undue reliance on these forward-looking statements as a number of important factors could cause the actual results to differ materially from the beliefs, plans, objectives, expectations, anticipations, estimates, and intentions expressed in such forward-looking statements.

These risks and uncertainties include, but are not limited to, the impact of: changes in oil and natural gas prices; worldwide and domestic economic conditions on drilling activity and demand for and pricing of our products and services; other risks inherent in the drilling services industry (e.g. operational risks, potential delays or changes in customers’ exploration or development projects or capital expenditures, the uncertainty of estimates and projections relating to levels of rental activities, uncertainty of estimates and projections of costs and expenses, risks in conducting foreign operations, the consolidation of our customers, and intense competition in our industry); and risks associated with our intellectual property and with the performance of our technology.  These risks and uncertainties may cause our actual results, levels of activity, performance or achievements to be materially different from those expressed or implied by any forward-looking statements.  When relying on our forward-looking statements to make decisions, investors and others should carefully consider the foregoing factors and other uncertainties and potential events.

Copies of our Canadian public filings are available at www.tescocorp.com and on SEDAR at www.sedar.com.  Our U.S. public filings are available at www.tescocorp.com and on EDGAR at www.sec.gov.

Please see Part I, Item 1A—"Risk Factors" of our Annual Report on Form 10-K for the year ended December 31, 2012 (“2012 Annual Report on Form 10-K”) and Part II, Item 1A—"Risk Factors" of this Quarterly Report on Form 10-Q for further discussion regarding our exposure to risks.  Additionally, new risk factors emerge from time to time and it is not possible for us to predict all such factors, nor to assess the impact such factors might have on our business or the extent to which any factor or combination of factors may cause actual results to differ materially from those contained in any forward-looking statements.  Given these risks and uncertainties, investors should not place undue reliance on forward-looking statements as a prediction of actual results.

PART I—FINANCIAL INFORMATION

Item 1.     Financial Statements.

TESCO CORPORATION

Condensed Consolidated Balance Sheets (Unaudited)

(in thousands)

	March 31, 2013		December 31, 2012
Assets
Current assets
Cash and cash equivalents	$	25,176	$	22,014
Accounts receivable trade, net of allowance for doubtful accounts of $3,864 and $2,878 as of March 31, 2013 and December 31, 2012, respectively	124,718		130,769
Inventories, net	126,072		124,506
Income taxes recoverable	5,621		4,228
Deferred income taxes	4,343		4,367
Prepaid and other current assets	43,964		40,331
Total current assets	329,894		326,215
Property, plant and equipment, net	208,580		209,933
Goodwill	32,732		32,732
Deferred income taxes	11,675		11,792
Intangible and other assets, net	6,046		6,438
Total assets	$	588,927	$	587,110
Liabilities and Shareholders’ Equity
Current liabilities
Current portion of long term debt	$	100	$	119
Accounts payable	37,477		43,603
Deferred revenue	10,882		10,650
Warranty reserves	3,569		3,719
Income taxes payable	5,405		6,894
Accrued and other current liabilities	40,884		41,572
Total current liabilities	98,317		106,557
Long term debt	103		142
Other liabilities	2,402		2,416
Deferred income taxes	8,034		8,487
Total liabilities	108,856		117,602
Commitments and contingencies (Note 11)	—		—
Shareholders’ equity
Common shares; no par value; unlimited shares authorized; 38,949 and 38,928 shares issued and outstanding at March 31, 2013 and December 31, 2012, respectively	215,187		213,460
Retained earnings	229,383		220,547
Accumulated comprehensive income	35,501		35,501
Total shareholders’ equity	480,071		469,508
Total liabilities and shareholders’ equity	$	588,927	$	587,110

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

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TESCO CORPORATION

Condensed Consolidated Statements of Income (Unaudited)

(in thousands, except per share information)

	Three Months Ended March 31,
	2013			2012
Revenue
Products	$	48,592		$	68,941
Services	78,503			83,480
	127,095			152,421
Operating expenses
Cost of sales and services
Products	38,188			52,310
Services	63,883			67,485
	102,071			119,795
Selling, general and administrative	12,747			11,063
Gain on sale of Casing Drilling	(1,484		)	—
Research and engineering	2,029			2,542
Total operating expenses	115,363			133,400
Operating income	11,732			19,021
Other expense (income)
Interest expense	(470		)	(358		)
Interest income	(23		)	(31		)
Foreign exchange loss	429			280
Other expense (income)	(827		)	(1,332		)
Total other expense	(891		)	(1,441		)
Income before income taxes	12,623			20,462
Income tax provision	3,787			6,043
Net income	$	8,836		$	14,419
Earnings per share:
Basic	$	0.23		$	0.37
Diluted	$	0.22		$	0.37
Weighted average number of shares:
Basic	38,932			38,583
Diluted	39,430			39,066

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

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TESCO CORPORATION

Condensed Consolidated Statements of Cash Flows (Unaudited)

(in thousands)

	Three Months Ended March 31,
	2013			2012
Operating Activities
Net income	$	8,836		$	14,419
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Depreciation and amortization	10,029			10,780
Stock compensation expense	1,650			727
Bad debt expense	1,070			369
Deferred income taxes	(314		)	2,659
Amortization of financial items	76			46
Gain on sale of operating assets	(3,071		)	(5,310		)
Changes in operating assets and liabilities:
Accounts receivable trade, net	4,992			(9,225		)
Inventories	(1,676		)	(16,017		)
Prepaid and other current assets	(3,186		)	2,722
Accounts payable and accrued liabilities	(6,453		)	(9,167		)
Income taxes recoverable	(2,882		)	(266		)
Other noncurrent assets and liabilities, net	(1,067		)	260
Net cash provided by (used for) operating activities	8,004			(8,003		)
Investing Activities
Additions to property, plant and equipment	(9,010		)	(17,866		)
Proceeds on sale of operating assets	1,859			820
Proceeds on sale of Casing Drilling, net of transaction costs	2,208			—
Other, net	38			73
Net cash used for investing activities	(4,905		)	(16,973		)
Financing Activities
Issuances of debt	—			26,000
Repayments of debt	(58		)	(6,325		)
Proceeds from exercise of stock options	121			123
Net cash provided by financing activities	63			19,798
Change in cash and cash equivalents	3,162			(5,178		)
Net cash and cash equivalents, beginning of period	22,014			23,069
Net cash and cash equivalents, end of period	$	25,176		$	17,891
Supplemental cash flow information
Cash payments for interest	$	121		$	88
Cash payments for income taxes	7,567			3,620
Cash received for income tax refunds	374			385
Property, plant and equipment accrued in accounts payable	861			967

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

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TESCO CORPORATION

Condensed Consolidated Statements of Shareholders’ Equity (Unaudited)

(in thousands)

	Common stock shares	Common shares		Retained earnings		Accumulated comprehensive income		Total
For the three months ended March 31, 2013
Balances at January 1, 2013	38,928	$	213,460	$	220,547	$	35,501	$	469,508
Net income	—	—		8,836		—		8,836
Stock compensation related activity	21	1,727		—		—		1,727
Balances at March 31, 2013	38,949	$	215,187	$	229,383	$	35,501	$	480,071
For the three months ended March 31, 2012
Balances at January 1, 2012	38,569	$	206,573	$	170,733	$	35,501	$	412,807
Net income	—	—		14,419		—		14,419
Stock compensation related activity	27	884		—		—		884
Balances at March 31, 2012	38,596	$	207,457	$	185,152	$	35,501	$	428,110

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

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TESCO CORPORATION

Notes to Unaudited Condensed Consolidated Financial Statements

Note 1—Nature of Operations and Basis of Preparation

Nature of Operations

We are a global leader in the design, manufacture, and service delivery of technology-based solutions for the upstream energy industry.  We seek to change the way wells are drilled by delivering safer and more efficient solutions that add real value by reducing the costs of drilling for, and producing, oil and natural gas.  Our product and service offerings consist mainly of equipment sales and services to drilling contractors and oil and natural gas operating companies throughout the world.

Basis of Presentation

We prepared this Quarterly Report on Form 10-Q pursuant to instructions for quarterly reporting required to be filed with the Securities and Exchange Commission (“SEC”).  Because this is an interim period filing presented using a condensed format, it does not include all information and footnotes normally included in annual financial statements prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”).  You should read this report along with our Annual Report on Form 10-K for the year ended December 31, 2012, which contains a summary of our significant accounting policies and other disclosures.  The condensed consolidated financial statements as of March 31, 2013 and for the quarters ended March 31, 2013 and 2012 are unaudited.  We derived the unaudited condensed consolidated balance sheet as of December 31, 2012 from the audited consolidated balance sheet filed in our 2012 Annual Report on Form 10-K.  In our opinion, we have made adjustments, all of which were normal recurring adjustments unless otherwise disclosed herein, that we believe are necessary for a fair statement of the balance sheets, results of operations, and cash flows, as applicable.

These unaudited condensed consolidated financial statements include the accounts of all consolidated subsidiaries after the elimination of all significant intercompany accounts and transactions.

Fair Value of Financial Instruments

At March 31, 2013, the carrying amount of cash and cash equivalents, accounts receivable trade, restricted cash, non-trade receivables, accounts payable, and accrued liabilities approximated their fair value due to their short maturities. At March 31, 2013, the carrying amount of our long term debt approximated its fair value.  The fair value of our long term debt is determined using observable inputs and is based on current market interest rates for debt issued with similar maturities by companies with risk profiles similar to ours (Level 2).

Subsequent Events

We conducted our subsequent events review through the date on which these unaudited condensed consolidated financial statements were filed with the SEC.

Note 2—Summary of Significant Accounting Policies

Significant Accounting Policies

There have been no material changes to our accounting policies, as described in the notes to our audited consolidated financial statements included in our 2012 Annual Report on Form 10-K.

Recent Accounting Pronouncements

Each reporting period we consider all newly issued but not yet adopted accounting and reporting guidance applicable to our operations and the preparation of our consolidated financial statements. We do not believe that any issued accounting and reporting guidance not yet adopted by us will have a material impact on our unaudited condensed consolidated financial statements.

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Note 3—Sale of Casing Drilling

On June 4, 2012, the Company completed the sale of substantially all of the assets of the Casing Drilling segment to Schlumberger Oilfield Holdings Ltd. and Schlumberger Technology Corporation (together, the "Schlumberger Group") for a total cash consideration of approximately $46.6 million, including a working capital purchase price adjustment. During the three months ended March 31, 2013, the Company recognized a pre-tax gain of approximately $1.5 million primarily from the working capital purchase price adjustment, in addition to the $12.3 million pre-tax gain recognized in 2012, which increased the total pre-tax gain from the sale to $13.8 million, net of transaction costs. The table below sets forth the details contributing to the gain on sale (in thousands):

Total cash consideration	$	46,624
Fixed assets, net	(11,999		)
Inventories, net	(10,839		)
Accounts receivable, net	(8,316		)
Transaction costs	(1,633		)
Gain on sale of Casing Drilling	$	13,837

At March 31, 2013, the Company had a remaining balance of $3.9 million related to the sale, which will be released from an escrow account when certain terms and conditions are satisfied by the Company.

Note 4—Details of Certain Accounts

At March 31, 2013 and December 31, 2012, prepaid and other current assets consisted of the following (in thousands):

	March 31, 2013		December 31, 2012
Prepaid taxes other than income taxes	$	12,177	$	9,645
Deposits	5,030		3,948
Prepaid insurance	3,617		4,893
Other prepaid expenses	4,153		4,730
Restricted cash	6,915		6,953
Deferred job costs	3,176		2,969
Non-trade receivables	8,896		7,193
	$	43,964	$	40,331

At March 31, 2013 and December 31, 2012, accrued and other current liabilities consisted of the following (in thousands):

	March 31, 2013		December 31, 2012
Accrued payroll and benefits	$	13,513	$	15,520
Accrued taxes other than income taxes	11,373		10,809
Other current liabilities	15,998		15,243
	$	40,884	$	41,572

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Note 5—Inventories

At March 31, 2013 and December 31, 2012, inventories, net of reserves for excess and obsolete inventories of $1.3 million and $1.3 million, respectively, by major classification were as follows (in thousands):

	March 31, 2013		December 31, 2012
Raw materials	$	64,176	$	68,347
Work in progress	10,543		4,029
Finished goods	51,353		52,130
	$	126,072	$	124,506

Note 6—Property, plant and equipment

At March 31, 2013 and December 31, 2012, property, plant, and equipment, at cost, by major category were as follows (in thousands):

	March 31, 2013			December 31, 2012
Land, buildings and leaseholds	$	26,345		$	26,273
Drilling equipment	323,713			317,450
Manufacturing equipment	10,674			10,110
Office equipment and other	31,370			31,086
Capital work in progress	10,192			13,509
	402,294			398,428
Less: Accumulated depreciation	(193,714		)	(188,495		)
	$	208,580		$	209,933

The net book value of used top drive rental equipment sold included in cost of sales and services on our unaudited condensed consolidated statements of income was $0.1 million for the three months ended March 31, 2013. Two used top drives were sold from our rental fleet during the three months ended March 31, 2013.

Depreciation and amortization expense for the three months ended March 31, 2013 and 2012 are included on our unaudited condensed consolidated statements of income as follows (in thousands):

	Three Months Ended March 31,
	2013		2012
Cost of sales and services	$	9,396	$	10,265
Selling, general and administrative expense	633		515
	$	10,029	$	10,780

Sale of Operating Assets

When top drive units from our rental fleet are sold, the sales proceeds are included in revenue and the net book value of the equipment sold is included in cost of sales and services.  Proceeds from the sale of used top drives are included in proceeds from the sale of operating assets and the difference between revenue and the cost of sales and services is included in gain on sale of operating assets in the accompanying unaudited condensed consolidated statement of cash flows.

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Note 7—Warranties

Changes in our warranty accrual for the three months ended March 31, 2013 were as follows (in thousands):

	March 31, 2013
Balance as of January 1, 2013	$	3,719
Charged to expense, net	1,325
Deductions	(1,475		)
Balance as of March 31, 2013	$	3,569

Note 8—Earnings per Share

Weighted average shares

The following table reconciles basic and diluted weighted average shares (in thousands):

	Three Months Ended March 31,
	2013	2012
Basic weighted average number of shares outstanding	38,932	38,583
Dilutive effect of stock-based compensation	498	483
Diluted weighted average number of shares outstanding	39,430	39,066
Anti-dilutive options excluded from calculation due to exercise prices	1,430	654

Note 9—Income Taxes

Tesco Corporation is an Alberta, Canada corporation.  We conduct business and are taxed on profits earned in a number of jurisdictions around the world.  Income taxes have been recorded based on the laws and rates in effect in the countries in which operations are conducted or in which we are considered a resident for income tax purposes.

Our income tax provision for the three months ended March 31, 2013 and 2012 was as follows (in thousands):

	Three Months Ended March 31,
	2013			2012
Current tax provision	$	4,101		$	3,384
Deferred tax provision	(314		)	2,659
Income tax provision	$	3,787		$	6,043

Our effective tax rate, which is income tax expense as a percentage of pre-tax earnings, was 30% for the three months ended March 31, 2013 and the same period in 2012.

At December 31, 2012, we had an accrual for uncertain tax positions of $2.2 million.  There was no change to this accrual during the first quarter of 2013, leaving a balance of $2.2 million at March 31, 2013. The accrual for uncertain tax positions is included in accrued and other current liabilities or other liabilities in our consolidated balance sheet based on whether we anticipate the uncertainties to be resolved within the next 12 months. At March 31, 2013, $1.0 million is included in accrued and other current liabilities, and $1.2 million is included in other liabilities.  The resolution of these uncertainties should not have a material impact on our effective tax rate.

Certain state and foreign tax filings remain open to examination.  We believe that any assessment on these filings will not have a material impact on our financial position, results of operations, or cash flows.  We believe that appropriate provisions for all outstanding issues have been made for all jurisdictions and all open years.  However, audit outcomes and the timing of audit

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settlements are subject to significant uncertainty.  Therefore, additional provisions on tax-related matters could be recorded in the future as revised estimates are made or the underlying matters are settled or otherwise resolved.

Note 10—Long term debt

Long term debt consists of the following (in thousands):

	March 31, 2013			December 31, 2012
Capital leases	203			261
Current portion of long term debt	(100		)	(119		)
Non-current portion of long term debt	$	103		$	142

As part of our acquisition of Premiere Casing Services - Egypt S.A.E ("Premiere") in 2011, we assumed $7.4 million of outstanding debt at the acquisition date of October 16, 2011. During 2012, we paid off a significant amount of the outstanding balances related to Premiere's capital leases and all of the balances related to the notes payable. At March 31, 2013 the outstanding balance of Premiere's capital leases was $0.2 million.

At March 31, 2013, we had a credit agreement which was entered into on April 27, 2012, to provide a revolving line of credit of $125 million, including up to $20 million of swing line loans (collectively, the “Revolver”). The credit facility has a term of five years and all outstanding borrowings on the Revolver are due and payable on April 27, 2017.  The credit facility bears interest at a margin above LIBOR, federal funds rate, or the prime rate for U.S. dollar loans as determined by JPMorgan Chase Bank, N.A. in New York.  We are required to pay a commitment fee on available, but unused, amounts of the credit facility of 0.375-0.500 percent per annum and a letter of credit fee of 1.00-2.00 percent per annum on outstanding face amounts of letters of credit issued under the credit facility. Amounts available under the Revolver are reduced by letters of credit issued under our credit facility, not to exceed $50 million in the aggregate.  Amounts available under the swing line loans may also be reduced by letters of credit or by means of a credit to a general deposit account of the applicable borrower.  The availability of future borrowings may also be limited in order to maintain certain financial ratios required under the covenants.  The credit facility contains covenants that we consider usual and customary for an agreement of this type, including a leverage ratio, a minimum net worth, and limitations on allowable amounts for the disposal of obsolete assets and annual capital expenditures, and a fixed charge coverage ratio.  The credit facility prohibits incurring any additional indebtedness outside the existing credit facility in excess of $50 million, paying cash dividends to shareholders, and contains other restrictions, which are standard to the industry.  All of our direct and indirect material subsidiaries in the United States, Canada, Argentina, Mexico, and Indonesia as well as one of our Cyprus subsidiaries are guarantors of any borrowings under the credit facility.  

Under the Revolver at March 31, 2013, we had no outstanding borrowings, $4.7 million in letters of credit outstanding and $120.3 million in available borrowing capacity. We were in compliance with our bank covenants at March 31, 2013.

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Note 11—Commitments and Contingencies

Legal contingencies

In the normal course of our business, we are subject to legal proceedings brought by or against us and our subsidiaries.  None of these proceedings involves a claim for damages exceeding ten percent of our current assets on a consolidated basis. The estimates below represent our best estimates based on consultation with internal and external legal counsel.  There can be no assurance as to the eventual outcome or the amount of loss we may suffer as a result of these proceedings.

VARCO Litigation: Varco I/P, Inc. (“Varco”) filed suit against us in April 2005 in the U.S. District Court for the Western District of Louisiana, alleging that our CDS infringes certain of Varco’s U.S. patents.  Varco seeks monetary damages and an injunction against further infringement.  We filed a countersuit against Varco in June 2005 in the U.S. District Court for the Southern District of Texas, Houston Division seeking invalidation of the Varco patents in question.  In July 2006, the Louisiana case was transferred to the federal district court in Houston, and as a result, the issues raised by Varco have been consolidated into a single proceeding in which we are the plaintiff.  We also filed a request with the U.S. Patent and Trademark Office (“USPTO”) for reexamination of the patents on which Varco’s claim of infringement is based.  The USPTO accepted the Varco patents for reexamination, and the district court stayed the patent litigation pending the outcome of the USPTO reexamination.  In May 2009, the USPTO issued a final action rejecting all of the Varco patent claims that we had contested.  Varco has appealed this decision with the USPTO and that reexamination appeal is pending. The outcome and amount of any future financial impacts from this litigation are indeterminable at this time.

Weatherford Litigation: Weatherford International, Inc. and Weatherford/Lamb Inc. (together, “Weatherford”) filed suit against us in the U.S. District Court for the Eastern District of Texas, Marshall Division in December 2007 (the “Marshall Suit”), alleging that various of our technologies infringe 11 different patents held by Weatherford.  Weatherford sought monetary damages and an injunction against further infringement.  Our technologies referred to in the claim included the CDS, the Casing Drilling system and method, a float valve, and the locking mechanism for the controls of the tubular handling system.  We filed a general denial seeking a judicial determination that we did not infringe the patents in question and/or that the patents are invalid.

In August 2008, we filed suit against several competitors in the U.S. District Court for the Southern District of Texas – Houston Division, including Weatherford (the “Houston Suit”).  The Houston Suit claims infringement of two of our patents related to our CDS.  On October 26, 2010, we entered into a settlement with Weatherford (the “Settlement”) dismissing both the Marshall Suit and the Houston Suit (as it relates to Weatherford) with prejudice.  Among other provisions, the Settlement contains the following terms:

• Non-exclusive irrevocable worldwide and royalty free cross licenses with respect to all the patents asserted by Weatherford in the Marshall Case and by us in the Houston Case, as well as certain other U.S. and foreign equivalents and counterparts; and

• Weatherford has agreed to purchase for five years67% of its worldwide top drive requirements from us, as long as we can meet production requirements, and to designate us as a preferred provider of after-market sales and service for top drives.  The prices we charge Weatherford will be equal to or lower than the prices we charge to any other customer of similar volume of purchases and/or services.

We entered into a Final Settlement and License Agreement (the "Settlement Agreement") with Weatherford on January 11, 2011, effective as of October 26, 2010.  As an additional condition of the Settlement Agreement, neither we nor Weatherford will pursue any cause of action that might adversely affect the validity or enforceability of each other's patents as listed in the exhibits to the Settlement Agreement, including any causes of action that may arise from the requests for review (“patent re-examinations”) we and Weatherford filed with the USPTO. However, the patent re-examinations already initiated continue with only the respective patent owner corresponding with the USPTO. Ongoing re-examination procedures include the patents owned by us and asserted in the Houston Suit. An oral hearing with the Board of Patent Appeals and Interferences (“BPAI”) at the USPTO occurred August 1, 2012. On November 27, 2012, the BPAI issued a decision in which all of the claims asserted in the Houston Suit were found to be valid in view of the prior art of record in the re-examination proceedings.

On November 11, 2010, we won a jury verdict against National Oilwell Varco, L.P. ("NOV"), Frank's Casing Crew and Rental Tools, Inc. ("Frank's") and Offshore Energy Services, Inc. ("OES") for infringing our U.S. Patent Nos. 7,140,443 and 7,377,324.  In that verdict, the jury found that NOV's accused product, the CRT 350, infringes all valid patent claims in the asserted patents, and that NOV contributorily infringed all valid patent claims in the asserted patents.  The jury also found that Frank's accused products,

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the (i) SuperTAWG, (ii) FA-1, and (iii) CRT 350, and OES's accused products, the CRT 350, infringe all valid patent claims in the asserted patents.  Damages were stipulated by the parties and the verdict is subject to entry of judgment and appeal.

On December 6, 2012, the District Court ruled on summary judgment that all of the asserted patent claims were obvious in view of prior art based on pre-trial evidence. This ruling overturns the favorable jury verdict. We filed a Notice of Appeal on December 21, 2012 seeking to reverse the District Court's ruling. At a procedural hearing on April 2, 2013, the District Court informed the parties that it did not intend for the December 6th Order to be final.  The District Court sent a letter to the Court of Appeals for the Federal Circuit on April 12, 2013 to confirm the District Court has jurisdiction “to proceed to set a schedule on discovery, briefing, and a bench trial on inequitable conduct.”

Tax Disputes: We have been previously advised by the Mexican tax authorities that they believe significant expenses incurred by our Mexican operations from 1996 through 2002 are not deductible for Mexican tax purposes.  Between 2002 and 2008, formal reassessments disallowing these deductions were issued for each of these years, all of which we appealed to the Mexican court system.  We have obtained final court rulings deciding all years in dispute in our favor, except for (i) 1996, as discussed below, and (ii) 2001 and 2002, both of which are currently before the Mexican Tax Court.  The outcomes of such appeals are uncertain.  We continue to believe that the basis for these reassessments was incorrect, and that the ultimate resolution of those outstanding matters will likely not have a material adverse effect on our consolidated financial position, results of operations, or cash flows.

In May 2002, we paid a deposit of $3.3 million to the Mexican tax authorities in order to appeal the reassessment for 1996.  In 2007, we requested and received a refund of approximately $3.7 million (the original deposit amount of $3.3 million plus $0.4 million in interest).  With the return of the $3.3 million deposit, the Mexican tax authorities issued a resolution indicating that we were owed an additional $3.4 million in interest and inflation adjustments but this amount had been retained by the tax authorities to satisfy a second reassessment for 1996.  We believed the second reassessment was invalid, and appealed it to the Mexican Tax Court.  In 2009, the Mexican Tax Court issued a decision accepting our arguments in part, which was subject to further appeal.

In May 2011, we received a refund of approximately $3.8 million (the remaining $3.4 million noted above, plus $0.4 million of additional interest and inflation adjustments) and recorded $2.4 million in interest income, $0.6 million in other income, partially offset by $0.4 million of related interest expense.  The remaining $1.2 million is included in other liabilities pending the ultimate resolution of this issue.

In July 2006, we received a claim for withholding tax, penalties and interest related to payments over the periods from 2000 to 2004 in a foreign jurisdiction.  We disagreed with this claim and litigated this matter.  During 2006, we accrued an estimated pre-tax exposure of $3.8 million and continued to accrue interest for this matter. In April 2012, we received final determination for the 2000 and 2002 tax years and have reversed $1.9 million of the accrual ($1.3 million to other income and a $0.6 million reduction of interest expense). In January 2013, we received final determination for the portion of the claim related to this accrual and have reversed $2.8 million of the accrual ($1.8 million to other income and a $1.0 million reduction of interest expense). At March 31, 2013, we have no accrual remaining for this claim.

In August 2008, we received a claim in Mexico for $1.1 million in fines and penalties related to the exportation of certain temporarily imported equipment that remained in Mexico beyond the authorized time limit for its return.  We disagree with this claim and are currently litigating the matter.  In December 2009, we received a decision from the Mexican Tax Court in our favor, which is subject to further appeal.  The outcome of this litigation is uncertain. No accrual has been recorded for this claim.

Other Contingencies

We are contingently liable under letters of credit and similar instruments that we enter into in connection with the importation of equipment to foreign countries and to secure our performance on certain contracts.  At March 31, 2013 and December 31, 2012, our total exposure under outstanding letters of credit was $8.1 million and $8.7 million, respectively.

Note 12—Segment Information

Business Segments

Prior to the sale of the Casing Drilling business during the second quarter of 2012, our four business segments were: Top Drive, Tubular Services, Casing Drilling, and Research and Engineering. On June 4, 2012, the Company completed the sale of substantially all of the assets of the Casing Drilling segment, which consisted of the proprietary Casing Drilling technology. Our Top Drive segment is comprised of top drive sales, top drive rentals, and after-market sales and service.  Our Tubular Services segment includes both our proprietary and conventional tubular services.  Our Research and Engineering segment is comprised

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of our internal research and development activities related to our proprietary tubular services and top drive model development, as well as the Casing Drilling technology prior to the sale.

We measure the results of our business segments using, among other measures, each segment’s operating income, which includes certain corporate overhead allocations.  Overhead costs include field administration and operations support.  At a business segment level, we incur costs directly and indirectly associated with revenue.  Direct costs include expenditures specifically incurred for the generation of revenue, such as personnel costs on location or transportation, maintenance and repair, and depreciation of our revenue-generating equipment.

Certain sales and marketing activities, financing activities, corporate general and administrative expenses, other (income) expense, and income taxes are not allocated to our business segments.

Goodwill is allocated to the business segment to which it specifically relates.  Our goodwill has been allocated to the Tubular Services segment.

Significant financial information relating to our business segments is presented below (in thousands):

	Three Months Ended March 31, 2013
	Top Drive		Tubular Services		Casing Drilling		Research & Engineering			Corporate and Other			Total
Revenue	$	75,569	$	51,095	$	431	$	—		$	—		$	127,095
Depreciation and amortization	2,807		6,109		—		24			1,089			10,029
Operating income (loss)	14,959		7,427		1,877		(2,029		)	(10,502		)	11,732
Other expense													(891		)
Income before income taxes													$	12,623

	Three Months Ended March 31, 2012
	Top Drive		Tubular Services		Casing Drilling			Research & Engineering			Corporate and Other			Total
Revenue	$	101,816	$	43,471	$	7,134		$	—		$	—		$	152,421
Depreciation and amortization	2,913		5,818		1,083			20			946			10,780
Operating income (loss)	24,893		4,942		(853		)	(2,542		)	(7,419		)	19,021
Other expense														(1,441		)
Income before income taxes														$	20,462

Geographic Areas

We attribute revenue to geographic regions based on the location of the customer.  Generally, for service activities, this will be the region in which the service activity occurs.  For equipment sales, this will be the region in which the sale transaction is complete and title transfers.  Our revenue by geographic area for the three months ended March 31, 2013 and 2012 was as follows (in thousands):

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	Three Months Ended March 31,
	2013		2012
Canada	$	38,601	$	56,534
United States	33,783		38,423
South America	15,153		15,081
Mexico	12,399		12,116
Asia Pacific	12,564		11,138
Europe, Africa and Middle East	10,000		7,773
Russia	4,595		11,356
Total	$	127,095	$	152,421

The physical location of our net property, plant and equipment by geographic area as of March 31, 2013 and December 31, 2012 was as follows (in thousands):

	Top Drive		Tubular Services		Overhead, Corporate and Other		March 31, 2013
United States	$	19,882	$	16,446	$	14,415	$	50,743
Mexico	34,057		7,911		163		42,131
South America	9,161		8,822		841		18,824
Asia Pacific	7,786		20,474		148		28,408
Russia	18,643		696		28		19,367
Europe, Africa and Middle East	4,492		27,415		4,839		36,746
Canada	7,281		3,549		1,531		12,361
Total	$	101,302	$	85,313	$	21,965	$	208,580

	Top Drive		Tubular Services		Overhead, Corporate and Other		December 31, 2012
United States	$	18,731	$	16,975	$	13,316	$	49,022
Mexico	34,431		8,611		368		43,410
South America	9,146		9,703		248		19,097
Asia Pacific	7,902		20,619		69		28,590
Russia	18,005		2,128		29		20,162
Europe, Africa and Middle East	3,716		28,918		4,955		37,589
Canada	8,122		3,677		264		12,063
Total	$	100,053	$	90,631	$	19,249	$	209,933

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Item 2.                      Management’s Discussion and Analysis of Financial Condition and Results of Operations.

The following discussion and analysis of financial condition and results of operations should be read in conjunction with the unaudited condensed consolidated financial statements and related notes thereto included elsewhere in this Quarterly Report on Form 10-Q.  This discussion contains forward-looking statements.  Please see “Caution Regarding Forward-Looking Information; Risk Factors” above and “Risk Factors” in Part II, Item IA below and in our 2012 Annual Report on Form 10-K, for a discussion of the uncertainties, risks, and assumptions associated with these statements.

Overview and Outlook

We are a global leader in the design, manufacture and service delivery of technology based solutions for the upstream energy industry.  We seek to change the way wells are drilled by delivering safer and more efficient solutions that add real value by reducing the costs of drilling for and producing oil and natural gas.

Prior to the sale of the Casing Drilling business during the second quarter of 2012, our business segments were:

• Top Drives – top drive sales, top drive rentals, and after-market sales and services;

• Tubular Services – proprietary and conventional tubular services;

• Casing Drilling – proprietary Casing Drilling technology; and

• Research and Engineering – internal research and development activities related to our proprietary tubular services and top drive model development, as well as the Casing Drilling technology prior to the sale.

On June 4, 2012, we completed the sale of substantially all of the assets of our Casing Drilling segment to the Schlumberger Group. For a detailed discussion of this matter, see Part I, Item 1—"Financial Statements", Note 3—Sale of Casing Drilling in this Quarterly Report on Form 10-Q.

Business Environment

One of the key indicators of our business is the number of active drilling rigs.  During the first quarter of 2013, North America continued to experience a downturn in rig activity. Europe has been experiencing uncertainty since 2012 over the outcome of the European Union's ("EU") financial support programs for EU member states experiencing financial troubles. The financial troubles of EU member states have created uncertainty and make any projection in Europe difficult. Additionally, certain countries in Latin America experienced a decline in rig activity due to various geopolitical and economic reasons. Current global macro economic conditions make any projections difficult. Below is a table that shows average rig count by region for the three months ended March 31, 2013 and 2012.

	Three Months Average Rig Count(1)		Increase / (Decrease)
	March 31,
	2013	2012	2012 to 2013
U.S.	1,758	1,991	(233	)	(12	)%
Canada	536	592	(56	)	(9	)%
Latin America (includes Mexico)	426	432	(6	)	(1	)%
Middle East (excludes Iran, Iraq and Sudan)	355	311	44		14	%
Asia Pacific (excludes China onshore)	245	250	(5	)	(2	)%
Europe (excludes Russia)	134	112	22		20	%
Africa	114	83	31		37	%
Worldwide	3,568	3,771	(203	)	(5	)%

(1)  Source: Baker Hughes Incorporated worldwide rig count; averages are monthly.

Summary of the Quarter Ended March 31, 2013 and Operational Performance

During the first quarter of 2013, our Top Drive segment had 24 top drive units sold compared to 39 during the same period in 2012.  Our Tubular Services segment revenue and operating income improved significantly in the first quarter of 2013 as compared to the first quarter of 2012. Our automated tubular services offering continues to gain market acceptance, and we remain

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committed to growing this segment as we believe that every rig with a top drive will eventually convert to running casing with an automated system, such as our CDS™ system.  We also invested in new and enhanced product and service offerings in our Research and Engineering segment.  

Outlook for 2013

The current outlook for the global economy varies widely, but we believe that most indicators point towards a continued slow recovery during the remainder of 2013. Current global macro-economic conditions make any projections difficult and uncertain; however, in each of our revenue generating segments, we anticipate moderately improved activity for the remainder of 2013, as follows:

• Top Drive - Based upon existing drilling and bidding levels and the size of our product sale backlog, we expect our top drive order rate and rental activity to remain steady for the remainder of 2013. In North America, we continue to experience downward pressure in bidding activity.  Our Top Drive sales backlog was 20 units at March 31, 2013, compared to 57 units at March 31, 2012 and 28 units at December 31, 2012.  Our customers have maintained their focus on lowering project costs, which continues to put downward pressure on our sales prices on select product offerings.  We expect our international top drive sales and rental activity and after-market sales and services to hold steady for the remainder of 2013.

• Tubular Services - We expect our CDS™ automated and conventional casing running business to strengthen in our international markets for the remainder of 2013.  We will continue to expand our automated casing service offerings, particularly in the major unconventional shale regions in North America and select international locations. In addition, we expect drilling activity in the U.S. Gulf of Mexico to gradually increase for the remainder of 2013, which should increase demand for our MCLRS proprietary services.

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Operating Results

Below is a summary of our operating results for the three months ended March 31, 2013 and 2012 (in thousands, except percentages):

	Three Months Ended March 31,				Increase/(Decrease)
	2013		2012		2012 to 2013
Segment revenue
Top Drive	75,569		101,816		(26,247	)	(26)%
Tubular Services	51,095		43,471		7,624		18%
Casing Drilling	431		7,134		(6,703	)	(94)%
Consolidated revenue	127,095		152,421		(25,326	)	(17)%
Segment operating income (loss)
Top Drive	14,959		24,893		(9,934	)	(40)%
Tubular Services	7,427		4,942		2,485		50%
Casing Drilling	1,877		(853	)	2,730		320%
Research & engineering	(2,029	)	(2,542	)	513		20%
Corporate and other	(10,502	)	(7,419	)	(3,083	)	(42)%
Consolidated operating income	11,732		19,021		(7,289	)	(38)%
Other expense (income)	(891	)	(1,441	)	550		38	%
Income tax provision	3,787		6,043		(2,256	)	(37)%
Net income	8,836		14,419		(5,583	)	(39)%

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Top Drive Segment

Our Top Drive business segment sells equipment and provides services to drilling contractors and oil and natural gas operating companies throughout the world.  We primarily manufacture top drives that are used in drilling operations to rotate the drill string while suspended from the derrick above the rig floor.  We also provide top drive rental services on a day-rate basis for land and offshore drilling rigs, and we provide after-market sales and support for our customers.  Below is a summary of our Top Drive operating results and metrics for the three months ended March 31, 2013 and 2012 (in thousands, except percentages, units, days, and rate):

	Three Months Ended March 31,				Increase/(Decrease)
	2013		2012		2012 to 2013
Top Drive revenue
Sales	$	32,768	$	50,400	$	(17,632	)	(35)%
Rental services	29,736		34,646		(4,910		)	(14)%
After-market sales and services	13,065		16,770		(3,705		)	(22)%
	$	75,569	$	101,816	$	(26,247	)	(26)%
Top Drive operating income	$	14,959	$	24,893	$	(9,934	)	(40)%
Number of top drive sales:
New	22		35		(13		)	(37)%
Used or consignment	2		4		(2		)	(50)%
	24		39		(15		)	(38)%
End of period number of top drives in rental fleet:	136		130		6			5%
Rental operating days(a)	5,827		6,987		(1,160		)	(17)%
Average daily operating rate	$	5,103	$	4,959	$	144		3%

__________________________________

(a)  Defined as a day that a unit in our rental fleet is under contract and operating; does not include stand-by days.

Top Drive operating results were largely driven by oil and natural gas drilling activity and new rig build activity. The average active rig count decreased by 5% in the first quarter of 2013 from the same period in 2012.

Top Drive sales revenue — The decrease in revenue for the three months ended March 31, 2013 compared to the same period in 2012 was due to fewer units sold as a result of decreased demand, both domestically and internationally.

The selling price per unit varies significantly depending on the model, whether the unit was previously operated in our rental fleet and whether a power unit was included in the sale.  Revenue related to the sale of used or consignment top drive units was $1.7 million and $7.0 million for the three months ended March 31, 2013 and 2012, respectively.

Top Drive rental revenue — The decrease in revenue for the three months ended March 31, 2013 compared to the same period in 2012 was due to decreased operating days as a result of lower rig count in North America.

Top Drive after-market sales and services revenue — The decrease in revenue for the three months ended March 31, 2013 as compared to the same period in 2012 was due to decreased demand in North America.

Top Drive operating income — The decrease in operating income for the three months ended March 31, 2013 as compared to the same period in 2012 was due to decreases in sales, rental and after-market sales and services revenue discussed above. During the first quarter of 2012, our quality control processes found casting anomalies in the gearbox housing of our new ESI top drive model and subsequently determined that the casting of the gearbox housing did not meet TESCO's standards. We recorded warranty expenses of $3.9 million during the first quarter of 2012 specifically associated with this ESI gearbox housing issue.

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Tubular Services Segment

Our Tubular Services business segment includes both automated and conventional services, which are typically offered as a “call out” service on a well-by-well basis.  Our automated service offerings, in particular the CDS™, provide a safer and more automated method for running casing and, if required, reaming the casing into the hole, as compared to traditional methods.  Additionally, our automated Tubular Service business includes the installation services of deep water smart well completion equipment using our MCLRS, a proprietary and patented technology that improves the quality of the installation of high-end well completions.  Our conventional Tubular Service business provides equipment and personnel for the installation of tubing and casing, including power tongs, pick-up/lay-down units, torque monitoring services, and connection testing services for new well construction and in work-over and re-entry operations.  Below is a summary of our Tubular Services operating results and metrics for the three months ended March 31, 2013 and 2012 (in thousands, except percentages and number of jobs):

	Three Months Ended March 31,				Increase/(Decrease)
	2013		2012		2012 to 2013
Tubular Services revenue
Automated	$	40,175	$	32,588	$	7,587	23%
Conventional	10,920		10,883		37		—%
	$	51,095	$	43,471	$	7,624	18%
Tubular Services operating income	$	7,427	$	4,942	$	2,485	50%
Number of automated jobs	956		859		97		11%

The increase in Tubular Services revenue for the three months ended March 31, 2013 compared to the same period in 2012 was due to increased demand in the Asia Pacific region, North America, and Latin America for automated offerings, and the Middle East for conventional offerings. A significant amount of current U.S. drilling activity is in shale formations that require directional and horizontal drilling techniques, which we believe are good applications for our automated service offerings. In addition, increased domestic and international demand for our tubular services, both automated and conventional, has resulted in new jobs at more favorable pricing terms. During the three months ended March 31, 2013, we recorded $1.7 million of revenue from our MCLRS™ offerings, compared to $0.9 million during the same period in 2012. The Tubular Services automated revenue during the three months ended March 31, 2013 and 2012 also included $2.8 million and $1.8 million, respectively, of revenue for CDS™ equipment sales.

The increase in Tubular Services operating income for the three months ended March 31, 2013 as compared to the same period in 2012 was due to higher revenue discussed above, including higher MCLRS™ and CDS™ equipment sales revenue, which provide higher operating margins. 

Casing Drilling Segment

On June 4, 2012, we completed the sale of substantially all of the assets of our Casing Drilling segment to the Schlumberger Group. The Casing Drilling business was based on the proprietary Casing Drilling technology, which used patented equipment and processes to allow an oil or gas well to be drilled using standard well casing pipe.  

Below is a summary of the operating results of the segment prior to the sale for the three months ended March 31, 2013 and 2012 (in thousands, except percentages):

	Three Months Ended March 31,					Increase/(Decrease)
	2013		2012			2012 to 2013
Casing Drilling revenue	$	431	$	7,134		$	(6,703	)	(94)%
Casing Drilling operating income (loss)	$	1,877	$	(853	)	$	2,730		320%

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Casing Drilling operating income for the three months ended March 31, 2013 was primarily attributed to a working capital adjustment gain of approximately $1.5 million from the sale. For a detailed discussion of this matter, see Part I, Item 1—"Financial Statements", Note 3—Sale of Casing Drilling in this Quarterly Report on Form 10-Q.

Research and Engineering Segment

Our Research and Engineering segment is comprised of our internal research and development activities related to our automated Tubular Services and top drive model development, as well as the Casing Drilling technology prior to the sale.  Below is a summary of our research and engineering expense for the three months ended March 31, 2013 and 2012 (in thousands, except percentages):

	Three Months Ended March 31,				Increase/(Decrease)
	2013		2012		2012 to 2013
Research and engineering expense	$	2,029	$	2,542	$	(513	)	(20)%

Research and engineering expenses decreased during the three months ended March 31, 2013 as compared to the same periods in 2012 due to the termination of Casing Drilling research and engineering after the sale of this business on June 4, 2012. We continue to invest in the development, commercialization, and enhancements of our proprietary technologies relating to our Top Drive and Tubular Services segments.

Corporate and Other Segment

Corporate and other expenses primarily consist of the corporate level general and administrative expenses and certain selling and marketing expenses.  Below is a summary of our corporate and other expenses for the three months ended March 31, 2013 and 2012 (in thousands, except percentages):

	Three Months Ended March 31,				Increase / (Decrease)
	2013		2012		2012 to 2013
Corporate and other expenses	$	10,502	$	7,419	$	3,083	42%
Corporate and other expenses as a % of revenue	8%		5%		3 pts

Corporate and other expenses were higher during the three months ended March 31, 2013, as compared to the same period in 2012 due primarily to increased short term and long term incentive compensation and payroll and benefit expense from increased headcount for operations support personnel.

Other Expense (Income)

Below is a summary of our other expense (income) for the three months ended March 31, 2013 and 2012 (in thousands, except percentages):

	Three Months Ended March 31,						Increase/(Decrease)
	2013			2012			2012 to 2013
Other expense (income)
Interest expense	$	(470	)	$	(358	)	$	(112	)	(31	)%
Interest income	(23		)	(31		)	8			26	%
Foreign exchange loss (gain)	429			280			149			53	%
Other expense (income)	(827		)	(1,332		)	505			38	%
Total other expense (income)	$	(891	)	$	(1,441	)	$	550		38	%

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In April 2012, we received a favorable determination on a legacy withholding tax issue in a foreign jurisdiction. The impact of this was recognized in the first quarter of 2012, when we reversed $1.9 million of accruals previously made for this issue (consisting of $1.3 million to other income and a $0.6 million reduction of interest expense). For a detailed discussion of this matter, see Part I, Item 1—"Financial Statements", Note 11—Commitments and Contingencies in this Quarterly Report on Form 10-Q.

Foreign exchange losses increased during the three months ended March 31, 2013 as compared to the same periods in 2012 due primarily to the devaluation of the Venezuelan Bolivar Fuerte in February 2013 as well as fluctuations in the valuation of the U.S. dollar compared to other currencies we transact in around the world, including the Argentine peso, Mexican peso, and Russian ruble, among others.

Income Tax Provision

	Three Months Ended March 31,		Increase / (Decrease)
	2013	2012
Effective income tax rate	30%	30%	—

We are an Alberta, Canada corporation.  We conduct business and are taxed on profits earned in a number of jurisdictions around the world. Our income tax rate is based on the laws and rates in effect in the countries in which our operations are conducted or in which we are considered a resident for income tax purposes.  Our effective tax rate, which is income tax expense as a percentage of pre-tax earnings, did not change for the three months ended March 31, 2013 compared to the same period in 2012.

Liquidity and Capital Resources

We rely on our cash and access to credit to fund our operations, growth initiatives and acquisitions.  Our primary sources of liquidity are cash flows generated from our operations, available cash and cash equivalents, and available borrowings under our revolving credit facility.  We use these sources of liquidity to fund our working capital requirements, capital expenditures, strategic investments and acquisitions.  For 2013, we forecast capital expenditures to be between $30 million and $40 million based on expected demand for our products and services. We expect to be able to fund our activities for 2013 with cash flows generated from our operations, available cash and cash equivalents, and available borrowings under our revolving credit facility.

As of March 31, 2013, we had no outstanding borrowings under our revolving credit facility, and we had availability to borrow $120.3 million under our revolving credit facility.  The availability of current borrowings is, and future borrowings may be, limited in order to maintain certain financial ratios required by restrictive covenants in our credit facility. We were in compliance with our bank covenants at March 31, 2013.  For further discussion on our credit facility, see Part I, Item 1—“Financial Statements”, Note 10 of this Quarterly Report on Form 10-Q.

Our net cash position at March 31, 2013 and December 31, 2012 was as follows (in thousands):

	March 31, 2013			December 31, 2012
Cash	$	25,176		$	22,014
Current portion of long term debt	(100		)	(119		)
Long term debt	(103		)	(142		)
Net cash	$	24,973		$	21,753

We report our net cash position because we regularly review it as a measure of our performance. However, the measure presented in this Quarterly Report on Form 10-Q may not always be comparable to similarly titled measures reported by other companies due to differences in the components of the measurement we use.

Cash Flows

Our cash flows fluctuate with the level of spending by oil and natural gas companies for drilling activities.  Certain sources and uses of cash, such as the level of discretionary capital expenditures and the issuance and repayment of debt, are within our

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control and are adjusted as necessary based on market conditions.  The following is a discussion of our cash flows for the three months ended March 31, 2013 and 2012.

Operating Activities – Net cash provided by operating activities is our primary source of capital and liquidity.  Net cash provided by operating activities was $8.0 million for the three months ended March 31, 2013 compared to net cash used of $8.0 million for the same period in 2012.  The increase in net cash provided by operating activities was due primarily cash inlays from decreasing accounts receivable and decreased cash outlay for inventory purchases.

Investing Activities – Net cash used by investing activities was $4.9 million during the three months ended March 31, 2013 compared to $17.0 million used during the same period of 2012.  During the three months ended March 31, 2013 and 2012, we used $9.0 million and $17.9 million of cash, respectively, for capital expenditures, and sales of operating assets provided $1.9 million and $0.8 million of cash, respectively. Additionally for the three months ended March 31, 2013, we received $1.6 million of cash from the sale of Casing Drilling segment to the Schlumberger Group.

Financing Activities – Net cash provided by financing activities was $0.1 million during the three months ended March 31, 2013 compared to $19.8 million for the same period in 2012.  During the three months ended March 31, 2012, we borrowed $26.0 million from our revolving credit facility and used $6.3 million of cash to repay our debt.  

Manufacturing Purchase Commitments

Our manufacturing purchase commitments, which represent executed purchase orders that have been submitted to the respective vendors, have increased from $34.9 million as of December 31, 2012 to $38.2 million as of March 31, 2013.  This increase of $3.3 million, or 9%, is driven by the anticipated demand for our CDS™ equipment and after-market part sales.

Off-Balance Sheet Arrangements

As of March 31, 2013, we have no off-balance sheet arrangements other than the manufacturing purchase commitments and letters of credit described above, and future interest payments on the aggregate unused commitments under our revolving credit facility and lease commitments as described in Part II, Item 7—“Management’s Discussion and Analysis of Financial Condition and Results of Operations” of our 2012 Annual Report on Form 10-K.

Critical Accounting Estimates and Policies

Our accounting policies are described in the notes to our audited consolidated financial statements included in Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” of our 2012 Annual Report on Form 10−K.  We prepare our unaudited condensed consolidated financial statements in conformity with U.S. GAAP.  Our results of operations and financial condition, as reflected in our unaudited condensed consolidated financial statements and related notes, are subject to management’s evaluation and interpretation of business conditions, changing capital market conditions and other factors that could affect the ongoing viability of our business and customers.  We believe that the most critical accounting policies in this regard are those described in our 2012 Annual Report on Form 10−K.  While these issues require us to make judgments that are subjective, they are generally based on a significant amount of historical data and current market data.  There have been no material changes or developments in authoritative accounting pronouncements or in our evaluation of the accounting estimates and the underlying assumptions or methodologies that we believe to be critical accounting policies and estimates as disclosed in our 2012 Annual Report on Form 10−K.

Item 3.    Quantitative and Qualitative Disclosures About Market Risk.

See Part I, Item 7A —“Quantitative and Qualitative Disclosures About Market Risk” in our 2012 Annual Report on Form 10-K for a detailed discussion of the risk factors affecting us. There have been no material changes to the market risk described in Part I, Item 7A —"Quantitative and Qualitative Disclosures About Market Risk" disclosed in our 2012 Annual Report on Form 10-K.

Item 4.    Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures designed to provide reasonable assurance that information required to be disclosed in the SEC reports we file or submit under the Securities Exchange Act of 1934, as amended (the “Exchange Act”) is recorded, processed, summarized, and reported within the time period specified by the SEC’s rules and forms and that such information is accumulated and communicated to management, including our Chief Executive Officer and Chief Financial Officer, to allow timely decisions regarding required disclosure. As of March 31, 2013, our Chief Executive Officer and Chief Financial Officer participated with management in evaluating the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) or 15d-15(e) under the Exchange Act). Our Chief Executive Officer and Chief Financial Officer have concluded that, as of March 31, 2013, our disclosure controls and procedures were effective at the reasonable assurance level.

21

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting during the quarter ended March 31, 2013, that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

22

PART II—OTHER INFORMATION

Item 1.    Legal Proceedings.

In the normal course of our business, we are subject to legal proceedings brought by or against us and our subsidiaries.  None of these proceedings involves a claim for damages exceeding ten percent of our current assets on a consolidated basis.  See Part I, Item 1—“Financial Statements”, Note 11 of this Quarterly Report on Form 10-Q for a summary of certain ongoing legal proceedings. Such information is incorporated into this Part II, Item 1—"Legal Proceedings" by reference.

On December 26, 2012, we received a request by the staff of the United States Securities and Exchange Commission ("SEC") that the Company take steps to preserve and retain five categories of documents relating to commercial agents who perform services for the corporate group in a foreign jurisdiction, the Company's general use of commercial agents in that jurisdiction, and compliance with the Foreign Corrupt Practices Act. This request stated that it "should not be construed as an indication by the Commission, or its staff, that any violations of law have occurred; nor should it be considered an adverse reflection upon any person, entity, or security." We have, under the advice and through independent external legal counsel, cooperated with and have provided the SEC staff with specific information which it has requested. External legal counsel for the Company has been advised by the SEC staff that no formal order of investigation has been issued. The outcome of the SEC's review and any future financial impact resulting from this matter are indeterminable at this time.

Item 1A. Risk Factors.

See Part I, Item 1A—"Risk Factors" in our 2012 Annual Report on Form 10-K for a detailed discussion of the risk factors affecting us.  There have been no material changes to the risk factors described in Part I, Item 1A—"Risk Factors" disclosed in our 2012 Annual Report on Form 10-K.

Item 6.    Exhibits.

The Exhibit Index set forth below is incorporated herein by reference.

23

SIGNATURE

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	TESCO CORPORATION
	By:	/s/    JULIO M. QUINTANA
		Julio M. Quintana, President and Chief Executive Officer
Date:	May 6, 2013
	TESCO CORPORATION
	By:	/s/    ROBERT L. KAYL
		Robert L. Kayl, Senior Vice President, Chief Financial Officer and Principal Accounting Officer
Date:	May 6, 2013

24

EXHIBIT INDEX

Exhibit No.	Description
3.1*	Articles of Amalgamation of Tesco Corporation, dated December 1, 1993 (incorporated by reference to Exhibit 4.1 to Tesco Corporation's Registration Statement on Form S-8 (File No. 333-139610) filed with the SEC on December 22, 2006)
3.2*	Amended and Restated By-laws of Tesco Corporation (incorporated by reference to Exhibit 3.1 to Tesco Corporation's Current Report on Form 8-K filed with the SEC on May 22, 2007)
31.1	Rule 13a-14(a)/15d-14(a) Certification, executed by Julio M. Quintana, President and Chief Executive Officer of Tesco Corporation
31.2	Rule 13a-14(a)/15d-14(a) Certification, executed by Robert L. Kayl, Senior Vice President and Chief Financial Officer of Tesco Corporation
32	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, executed by Julio M. Quintana, President and Chief Executive Officer of Tesco Corporation and Robert L. Kayl, Senior Vice President and Chief Financial Officer of Tesco Corporation
101.INS**	XBRL Instance Document
101.SCH**	XBRL Taxonomy Extension Schema
101.CAL**	XBRL Taxonomy Extension Calculation Linkbase
101.DEF**	XBRL Taxonomy Extension Definition Linkbase
101.LAB**	XBRL Taxonomy Extension Label Linkbase
101.PRE**	XBRL Taxonomy Extension Presentation Linkbase

* Incorporated by reference to the indicated filing

** As provided in Rule 406T of Regulation S-T, this information is furnished and not filed for purposes of Sections 11 and 12 of the Securities Act of 1933 and Section 18 of the Securities Exchange Act of 1934.

25

EX-31.1

Exhibit 31.1

Certification of the Chief Executive Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Julio M. Quintana, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Tesco Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: May 6, 2013	/s/ Julio M. Quintana
	Julio M. Quintana
	President and Chief Executive Officer

EX-31.2

Exhibit 31.2

Certification of the Chief Financial Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Robert L. Kayl, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Tesco Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: May 6, 2013	/s/ Robert L. Kayl
	Robert L. Kayl Senior Vice President and Chief Financial Officer

EX-32

EXHIBIT 32

Section 1350 Certifications

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

(Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), each of the undersigned officers of Tesco Corporation (the “Corporation”), does hereby certify that the Quarterly Report of the Corporation on Form 10-Q for the quarter ended March 31, 2013, as filed with the Securities and Exchange Commission on the date hereof (the “Report”) fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934 and the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Corporation.

Date: May 6, 2013	/s/ Julio M. Quintana
	Julio M. Quintana President and Chief Executive Officer
Date: May 6, 2013	/s/ Robert L. Kayl
	Robert L. Kayl Sr. Vice President and Chief Financial Officer

The foregoing certifications shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liability of that section. Such certifications will not be deemed to be incorporated by reference into any filing under the Securities Act or the Exchange Act, except to the extent that the Corporation specifically incorporates it by reference.

A signed original of this written statement required by Section 906 has been provided to the Corporation, and will be retained by the Corporation and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Income Taxes- Narrative (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013
Income Tax Examination [Line Items]
Effective income tax rate (percent)	30.00%	30.00%
Accrual for uncertain tax positions	$ 2,200,000		$ 2,200,000
Change to tax accrual	0
Accrued and other current liabilities [Member]
Income Tax Examination [Line Items]
Accrual for uncertain tax positions			1,000,000
Other liabilities [Member]
Income Tax Examination [Line Items]
Accrual for uncertain tax positions			$ 1,200,000

XML

Property, plant and equipment- Major Asset Categories (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 402,294	$ 398,428
Less: Accumulated depreciation	(193,714)	(188,495)
Property, plant and equipment, net	208,580	209,933
Land, buildings and leaseholds [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	26,345	26,273
Drilling equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	323,713	317,450
Manufacturing equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	10,674	10,110
Office equipment and other [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	31,370	31,086
Capital work in progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 10,192	$ 13,509

XML

Earnings per Share (Tables)

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Schedule of weighted average number of shares

The following table reconciles basic and diluted weighted average shares (in thousands):

	Three Months Ended March 31,
	2013	2012
Basic weighted average number of shares outstanding	38,932	38,583
Dilutive effect of stock-based compensation	498	483
Diluted weighted average number of shares outstanding	39,430	39,066
Anti-dilutive options excluded from calculation due to exercise prices	1,430	654

XML

Commitments and Contingencies (Details) (USD $)	1 Months Ended			1 Months Ended	0 Months Ended	1 Months Ended		12 Months Ended	1 Months Ended	12 Months Ended		1 Months Ended
	Aug. 31, 2008 patent	Mar. 31, 2013	Dec. 31, 2012	Dec. 31, 2007 Legal suit, U.S. district court for the eastern district of Texas [Member] patent	Oct. 26, 2010 Legal suit, U.S. district court for the southern district of Texas [Member]	May 31, 2011 Reassessment appeal, Mexican tax court [Member]	May 31, 2002 Reassessment appeal, Mexican tax court [Member]	Dec. 31, 2007 Reassessment appeal, Mexican tax court [Member]	Apr. 30, 2012 Foreign withholding tax claim [Member]	Dec. 31, 2006 Foreign withholding tax claim [Member]	Mar. 31, 2013 Foreign withholding tax claim [Member]	Aug. 31, 2008 Exportation claim, Mexican tax court [Member]	May 31, 2011 Interest income [Member] Reassessment appeal, Mexican tax court [Member]	May 31, 2011 Other income [Member] Reassessment appeal, Mexican tax court [Member]	May 31, 2002 Other income [Member] Reassessment appeal, Mexican tax court [Member]	Apr. 30, 2012 Other income [Member] Foreign withholding tax claim [Member]	May 31, 2011 Interest expense [Member] Reassessment appeal, Mexican tax court [Member]	Apr. 30, 2012 Interest expense [Member] Foreign withholding tax claim [Member]	May 31, 2011 Other liabilities [Member] Reassessment appeal, Mexican tax court [Member]	Jan. 31, 2013 Foreign Tax Authority [Member] Foreign withholding tax claim [Member]	Jan. 31, 2013 Foreign Tax Authority [Member] Other income [Member] Foreign withholding tax claim [Member]	Jan. 31, 2013 Foreign Tax Authority [Member] Interest expense [Member] Foreign withholding tax claim [Member]
Loss Contingencies [Line Items]
Loss contingency, maximum percent of claims to current assets (percent)		10.00%
Number of alleged patent infringements	2			11
Specified period of purchase agreement					5 years
Percentage of total worldwide top drive requirements to be purchased for specified period (percent)					67.00%
Deposit paid to Mexican tax authorities for appeal							$ 3,300,000
Refund received from Mexican tax authorities						3,800,000		3,700,000					2,400,000	600,000			400,000		1,200,000
Interest earned on deposit made to Mexican tax authorities								400,000
Resolution by Mexican tax authorities, additional amount of interest and inflation adjustments owed and retained for second reassessment													400,000		3,400,000
Carrying value, provision										3,800,000
Reversal for foreign withholding tax claim									1,900,000							1,300,000		600,000		2,800,000	1,800,000	1,000,000
Accrual for foreign withholding tax claim											0
Claim for fines and penalties related to equipment in Mexico												1,100,000
Maximum exposure under outstanding letters of credit		$ 8,100,000	$ 8,700,000

XML

Earnings per Share (Details) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Basic weighted average number of shares outstanding (in shares)	38,932	38,583
Dilutive effect of stock-based compensation (in shares)	498	483
Diluted weighted average number of shares outstanding (in shares)	39,430	39,066
Stock options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive options excluded from calculation due to exercise prices (in shares)	1,430	654

XML

Sale of Casing Drilling

3 Months Ended

Mar. 31, 2013

Disposal Group, Including Discontinued Operation, Additional Disclosures [Abstract]

Sale of Casing Drilling

Sale of Casing Drilling

On June 4, 2012, the Company completed the sale of substantially all of the assets of the Casing Drilling segment to Schlumberger Oilfield Holdings Ltd. and Schlumberger Technology Corporation (together, the "Schlumberger Group") for a total cash consideration of approximately $46.6 million, including a working capital purchase price adjustment. During the three months ended March 31, 2013, the Company recognized a pre-tax gain of approximately $1.5 million primarily from the working capital purchase price adjustment, in addition to the $12.3 million pre-tax gain recognized in 2012, which increased the total pre-tax gain from the sale to $13.8 million, net of transaction costs. The table below sets forth the details contributing to the gain on sale (in thousands):

Total cash consideration	$	46,624
Fixed assets, net	(11,999		)
Inventories, net	(10,839		)
Accounts receivable, net	(8,316		)
Transaction costs	(1,633		)
Gain on sale of Casing Drilling	$	13,837

At March 31, 2013, the Company had a remaining balance of $3.9 million related to the sale, which will be released from an escrow account when certain terms and conditions are satisfied by the Company.

XML

Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			12 Months Ended
	Mar. 31, 2013	Jun. 30, 2012 segment	Mar. 31, 2012	Dec. 31, 2012
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Number of operating segments		4
Revenue	$ 127,095		$ 152,421
Depreciation and amortization	10,029		10,780	10,780
Operating income (loss)	11,732		19,021
Other expense (income)	(891)		(1,441)
Income before income taxes	12,623		20,462
Top Drive [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	75,569		101,816
Depreciation and amortization	2,807		2,913
Operating income (loss)	14,959		24,893
Tubular Services [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	51,095		43,471
Depreciation and amortization	6,109		5,818
Operating income (loss)	7,427		4,942
Casing Drilling [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	431		7,134
Depreciation and amortization	0		1,083
Operating income (loss)	1,877		(853)
Research & Engineering [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	0		0
Depreciation and amortization	24		20
Operating income (loss)	(2,029)		(2,542)
Corporate and Other [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	0		0
Depreciation and amortization	1,089		946
Operating income (loss)	$ (10,502)		$ (7,419)

XML

Sale of Casing Drilling (Details) (USD $)	3 Months Ended		0 Months Ended	3 Months Ended	10 Months Ended	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Jun. 04, 2012 Casing Drilling [Member]	Mar. 31, 2013 Casing Drilling [Member]	Mar. 31, 2013 Casing Drilling [Member]	Dec. 31, 2012 Casing Drilling [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total Cash Consideration			$ 46,624,000
Fixed assets, net			(11,999,000)
Inventories, net			(10,839,000)
Accounts receivable, net			(8,316,000)
Transaction costs			(1,633,000)
Gain on sale of Casing Drilling	(1,484,000)	0	(13,837,000)	(1,500,000)	(13,800,000)	(12,300,000)
Cash to be received after terms and conditions met				$ 3,900,000	$ 3,900,000

XML

Segment Information (Tables)

3 Months Ended

Mar. 31, 2013

Segment Reporting [Abstract]

Reconciliation of operating profit (loss) from segments to consolidated

Significant financial information relating to our business segments is presented below (in thousands):

	Three Months Ended March 31, 2013
	Top Drive		Tubular Services		Casing Drilling		Research & Engineering			Corporate and Other			Total
Revenue	$	75,569	$	51,095	$	431	$	—		$	—		$	127,095
Depreciation and amortization	2,807		6,109		—		24			1,089			10,029
Operating income (loss)	14,959		7,427		1,877		(2,029		)	(10,502		)	11,732
Other expense													(891		)
Income before income taxes													$	12,623

	Three Months Ended March 31, 2012
	Top Drive		Tubular Services		Casing Drilling			Research & Engineering			Corporate and Other			Total
Revenue	$	101,816	$	43,471	$	7,134		$	—		$	—		$	152,421
Depreciation and amortization	2,913		5,818		1,083			20			946			10,780
Operating income (loss)	24,893		4,942		(853		)	(2,542		)	(7,419		)	19,021
Other expense														(1,441		)
Income before income taxes														$	20,462

Schedule of revenues from external customers and long-lived assets by geographical areas

Our revenue by geographic area for the three months ended March 31, 2013 and 2012 was as follows (in thousands):

	Three Months Ended March 31,
	2013		2012
Canada	$	38,601	$	56,534
United States	33,783		38,423
South America	15,153		15,081
Mexico	12,399		12,116
Asia Pacific	12,564		11,138
Europe, Africa and Middle East	10,000		7,773
Russia	4,595		11,356
Total	$	127,095	$	152,421

The physical location of our net property, plant and equipment by geographic area as of March 31, 2013 and December 31, 2012 was as follows (in thousands):

	Top Drive		Tubular Services		Overhead, Corporate and Other		March 31, 2013
United States	$	19,882	$	16,446	$	14,415	$	50,743
Mexico	34,057		7,911		163		42,131
South America	9,161		8,822		841		18,824
Asia Pacific	7,786		20,474		148		28,408
Russia	18,643		696		28		19,367
Europe, Africa and Middle East	4,492		27,415		4,839		36,746
Canada	7,281		3,549		1,531		12,361
Total	$	101,302	$	85,313	$	21,965	$	208,580

	Top Drive		Tubular Services		Overhead, Corporate and Other		December 31, 2012
United States	$	18,731	$	16,975	$	13,316	$	49,022
Mexico	34,431		8,611		368		43,410
South America	9,146		9,703		248		19,097
Asia Pacific	7,902		20,619		69		28,590
Russia	18,005		2,128		29		20,162
Europe, Africa and Middle East	3,716		28,918		4,955		37,589
Canada	8,122		3,677		264		12,063
Total	$	100,053	$	90,631	$	19,249	$	209,933

XML

Segment Information- Revenue by Geographic Area (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	$ 127,095	$ 152,421
Canada [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	38,601	56,534
United States [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	33,783	38,423
South America [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	15,153	15,081
Mexico [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	12,399	12,116
Asia Pacific [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	12,564	11,138
Europe, Africa and Middle East [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	10,000	7,773
Russia [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	$ 4,595	$ 11,356

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Details of Certain Accounts- Prepaid and Other Current Assets (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Details of Certain Accounts [Abstract]
Prepaid taxes other than income	$ 12,177	$ 9,645
Deposits	5,030	3,948
Prepaid insurance	3,617	4,893
Other prepaid expenses	4,153	4,730
Restricted cash	6,915	6,953
Deferred job costs	3,176	2,969
Non-trade receivables	8,896	7,193
Prepaid expense and other assets, current	$ 43,964	$ 40,331

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Details of Certain Accounts- Accrued and Other Current Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Details of Certain Accounts [Abstract]
Accrued payroll and benefits	$ 13,513	$ 15,520
Accrued taxes other than income taxes	11,373	10,809
Other current liabilities	15,998	15,243
Accrued liabilities, current	$ 40,884	$ 41,572

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Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2013

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Significant Accounting Policies

There have been no material changes to our accounting policies, as described in the notes to our audited consolidated financial statements included in our 2012 Annual Report on Form 10-K.

Recent Accounting Pronouncements

Each reporting period we consider all newly issued but not yet adopted accounting and reporting guidance applicable to our operations and the preparation of our consolidated financial statements. We do not believe that any issued accounting and reporting guidance not yet adopted by us will have a material impact on our unaudited condensed consolidated financial statements.

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Inventories (Details) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Inventory Disclosure [Abstract]
Reserves for excess and obsolete inventories	$ 1,300,000	$ 1,300,000
Raw materials	64,176,000	68,347,000
Work in progress	10,543,000	4,029,000
Finished goods	51,353,000	52,130,000
Inventory, net	$ 126,072,000	$ 124,506,000

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Long term debt (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Current portion of long term debt	$ (100)	$ (119)
Non-current portion of long term debt	103	142
Capital leases [Member]
Debt Instrument [Line Items]
Capital leases	$ 203	$ 261

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Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current assets
Cash and cash equivalents	$ 25,176	$ 22,014
Accounts receivable trade, net of allowance for doubtful accounts of $3,864 and $2,878 as of March 31, 2013 and December 31, 2012, respectively	124,718	130,769
Inventories, net	126,072	124,506
Income taxes recoverable	5,621	4,228
Deferred income taxes	4,343	4,367
Prepaid and other current assets	43,964	40,331
Total current assets	329,894	326,215
Property, plant and equipment, net	208,580	209,933
Goodwill	32,732	32,732
Deferred income taxes	11,675	11,792
Intangible and other assets, net	6,046	6,438
Total assets	588,927	587,110
Current liabilities
Current portion of long term debt	100	119
Accounts payable	37,477	43,603
Deferred revenue	10,882	10,650
Warranty reserves	3,569	3,719
Income taxes payable	5,405	6,894
Accrued and other current liabilities	40,884	41,572
Total current liabilities	98,317	106,557
Long term debt	103	142
Other liabilities	2,402	2,416
Deferred income taxes	8,034	8,487
Total liabilities	108,856	117,602
Commitments and contingencies (Note 11)	0	0
Shareholders’ equity
Common shares; no par value; unlimited shares authorized; 38,949 and 38,928 shares issued and outstanding at March 31, 2013 and December 31, 2012, respectively	215,187	213,460
Retained earnings	229,383	220,547
Accumulated comprehensive income	35,501	35,501
Total shareholders’ equity	480,071	469,508
Total liabilities and shareholders’ equity	$ 588,927	$ 587,110

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Segment Information- Property, Plant and Equipment by Geographic Area (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	$ 208,580	$ 209,933
United States [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	50,743	49,022
Mexico [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	42,131	43,410
South America [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	18,824	19,097
Asia Pacific [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	28,408	28,590
Russia [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	19,367	20,162
Europe, Africa and Middle East [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	36,746	37,589
Canada [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	12,361	12,063
Top Drive [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	101,302	100,053
Top Drive [Member] | United States [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	19,882	18,731
Top Drive [Member] | Mexico [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	34,057	34,431
Top Drive [Member] | South America [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	9,161	9,146
Top Drive [Member] | Asia Pacific [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	7,786	7,902
Top Drive [Member] | Russia [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	18,643	18,005
Top Drive [Member] | Europe, Africa and Middle East [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	4,492	3,716
Top Drive [Member] | Canada [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	7,281	8,122
Tubular Services [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	85,313	90,631
Tubular Services [Member] | United States [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	16,446	16,975
Tubular Services [Member] | Mexico [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	7,911	8,611
Tubular Services [Member] | South America [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	8,822	9,703
Tubular Services [Member] | Asia Pacific [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	20,474	20,619
Tubular Services [Member] | Russia [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	696	2,128
Tubular Services [Member] | Europe, Africa and Middle East [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	27,415	28,918
Tubular Services [Member] | Canada [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	3,549	3,677
Overhead, Corporate and Other [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	21,965	19,249
Overhead, Corporate and Other [Member] | United States [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	14,415	13,316
Overhead, Corporate and Other [Member] | Mexico [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	163	368
Overhead, Corporate and Other [Member] | South America [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	841	248
Overhead, Corporate and Other [Member] | Asia Pacific [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	148	69
Overhead, Corporate and Other [Member] | Russia [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	28	29
Overhead, Corporate and Other [Member] | Europe, Africa and Middle East [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	4,839	4,955
Overhead, Corporate and Other [Member] | Canada [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total property, plant and equipment, net	$ 1,531	$ 264

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Condensed Consolidated Statements of Shareholders' Equity (Unaudited) (USD $) In Thousands, unless otherwise specified	Total	Common shares [Member]	Retained earnings [Member]	Accumulated comprehensive income [Member]
Beginning balance at Dec. 31, 2011	$ 412,807	$ 206,573	$ 170,733	$ 35,501
Beginning balance (in shares) at Dec. 31, 2011		38,569
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	14,419		14,419
Stock compensation related activity (in shares)		27
Stock compensation related activity	884	884
Ending balance at Mar. 31, 2012	428,110	207,457	185,152	35,501
Ending balance (in shares) at Mar. 31, 2012		38,596
Beginning balance at Dec. 31, 2012	469,508	213,460	220,547	35,501
Beginning balance (in shares) at Dec. 31, 2012	38,569	38,928
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	8,836		8,836
Stock compensation related activity (in shares)		21
Stock compensation related activity	1,727	1,727
Ending balance at Mar. 31, 2013	$ 480,071	$ 215,187	$ 229,383	$ 35,501
Ending balance (in shares) at Mar. 31, 2013	38,745	38,949

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Property, plant and equipment- Depreciation and Amortization Expense (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Property, Plant and Equipment [Abstract]
Cost of sales and services	$ 9,396		$ 10,265
Selling, general and administrative expense	633		515
Depreciation and amortization	$ 10,029	$ 10,780	$ 10,780

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Inventories (Tables)

3 Months Ended

Mar. 31, 2013

Inventory Disclosure [Abstract]

Schedule of inventory, current

At March 31, 2013 and December 31, 2012, inventories, net of reserves for excess and obsolete inventories of $1.3 million and $1.3 million, respectively, by major classification were as follows (in thousands):

	March 31, 2013		December 31, 2012
Raw materials	$	64,176	$	68,347
Work in progress	10,543		4,029
Finished goods	51,353		52,130
	$	126,072	$	124,506

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Warranties (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Movement in Standard Product Warranty Accrual [Roll Forward]
Beginning Balance	$ 3,719
Charged to expense, net	1,325
Deductions	(1,475)
Ending Balance	$ 3,569

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Warranties (Tables)

3 Months Ended

Mar. 31, 2013

Product Warranties Disclosures [Abstract]

Schedule of product warranty liability

Changes in our warranty accrual for the three months ended March 31, 2013 were as follows (in thousands):

	March 31, 2013
Balance as of January 1, 2013	$	3,719
Charged to expense, net	1,325
Deductions	(1,475		)
Balance as of March 31, 2013	$	3,569

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Nature of Operations and Basis of Preparation

3 Months Ended

Mar. 31, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Nature of operations and basis of preparation

Nature of Operations and Basis of Preparation

Nature of Operations

We are a global leader in the design, manufacture, and service delivery of technology-based solutions for the upstream energy industry.  We seek to change the way wells are drilled by delivering safer and more efficient solutions that add real value by reducing the costs of drilling for, and producing, oil and natural gas.  Our product and service offerings consist mainly of equipment sales and services to drilling contractors and oil and natural gas operating companies throughout the world.

Basis of Presentation

We prepared this Quarterly Report on Form 10-Q pursuant to instructions for quarterly reporting required to be filed with the Securities and Exchange Commission (“SEC”).  Because this is an interim period filing presented using a condensed format, it does not include all information and footnotes normally included in annual financial statements prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”).  You should read this report along with our Annual Report on Form 10-K for the year ended December 31, 2012, which contains a summary of our significant accounting policies and other disclosures.  The condensed consolidated financial statements as of March 31, 2013 and for the quarters ended March 31, 2013 and 2012 are unaudited.  We derived the unaudited condensed consolidated balance sheet as of December 31, 2012 from the audited consolidated balance sheet filed in our 2012 Annual Report on Form 10-K.  In our opinion, we have made adjustments, all of which were normal recurring adjustments unless otherwise disclosed herein, that we believe are necessary for a fair statement of the balance sheets, results of operations, and cash flows, as applicable.

These unaudited condensed consolidated financial statements include the accounts of all consolidated subsidiaries after the elimination of all significant intercompany accounts and transactions.

Fair Value of Financial Instruments

At March 31, 2013, the carrying amount of cash and cash equivalents, accounts receivable trade, restricted cash, non-trade receivables, accounts payable, and accrued liabilities approximated their fair value due to their short maturities. At March 31, 2013, the carrying amount of our long term debt approximated its fair value.  The fair value of our long term debt is determined using observable inputs and is based on current market interest rates for debt issued with similar maturities by companies with risk profiles similar to ours (Level 2).

Subsequent Events

We conducted our subsequent events review through the date on which these unaudited condensed consolidated financial statements were filed with the SEC.

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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Assets, Current [Abstract]
Accounts receivable trade, allowance for doubtful accounts	$ 3,864	$ 2,878
Stockholders' Equity Attributable to Parent [Abstract]
Common shares, no par value	$ 0	$ 0
Common shares, issued (in shares)	38,949	38,928
Common Stock, shares outstanding (shares)	38,745	38,569

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

Commitments and contingencies

Commitments and Contingencies

Legal contingencies

In the normal course of our business, we are subject to legal proceedings brought by or against us and our subsidiaries.  None of these proceedings involves a claim for damages exceeding ten percent of our current assets on a consolidated basis. The estimates below represent our best estimates based on consultation with internal and external legal counsel.  There can be no assurance as to the eventual outcome or the amount of loss we may suffer as a result of these proceedings.

VARCO Litigation: Varco I/P, Inc. (“Varco”) filed suit against us in April 2005 in the U.S. District Court for the Western District of Louisiana, alleging that our CDS infringes certain of Varco’s U.S. patents.  Varco seeks monetary damages and an injunction against further infringement.  We filed a countersuit against Varco in June 2005 in the U.S. District Court for the Southern District of Texas, Houston Division seeking invalidation of the Varco patents in question.  In July 2006, the Louisiana case was transferred to the federal district court in Houston, and as a result, the issues raised by Varco have been consolidated into a single proceeding in which we are the plaintiff.  We also filed a request with the U.S. Patent and Trademark Office (“USPTO”) for reexamination of the patents on which Varco’s claim of infringement is based.  The USPTO accepted the Varco patents for reexamination, and the district court stayed the patent litigation pending the outcome of the USPTO reexamination.  In May 2009, the USPTO issued a final action rejecting all of the Varco patent claims that we had contested.  Varco has appealed this decision with the USPTO and that reexamination appeal is pending. The outcome and amount of any future financial impacts from this litigation are indeterminable at this time.

Weatherford Litigation: Weatherford International, Inc. and Weatherford/Lamb Inc. (together, “Weatherford”) filed suit against us in the U.S. District Court for the Eastern District of Texas, Marshall Division in December 2007 (the “Marshall Suit”), alleging that various of our technologies infringe 11 different patents held by Weatherford.  Weatherford sought monetary damages and an injunction against further infringement.  Our technologies referred to in the claim included the CDS, the Casing Drilling system and method, a float valve, and the locking mechanism for the controls of the tubular handling system.  We filed a general denial seeking a judicial determination that we did not infringe the patents in question and/or that the patents are invalid.

In August 2008, we filed suit against several competitors in the U.S. District Court for the Southern District of Texas – Houston Division, including Weatherford (the “Houston Suit”).  The Houston Suit claims infringement of two of our patents related to our CDS.  On October 26, 2010, we entered into a settlement with Weatherford (the “Settlement”) dismissing both the Marshall Suit and the Houston Suit (as it relates to Weatherford) with prejudice.  Among other provisions, the Settlement contains the following terms:

• Non-exclusive irrevocable worldwide and royalty free cross licenses with respect to all the patents asserted by Weatherford in the Marshall Case and by us in the Houston Case, as well as certain other U.S. and foreign equivalents and counterparts; and

• Weatherford has agreed to purchase for five years67% of its worldwide top drive requirements from us, as long as we can meet production requirements, and to designate us as a preferred provider of after-market sales and service for top drives.  The prices we charge Weatherford will be equal to or lower than the prices we charge to any other customer of similar volume of purchases and/or services.

We entered into a Final Settlement and License Agreement (the "Settlement Agreement") with Weatherford on January 11, 2011, effective as of October 26, 2010.  As an additional condition of the Settlement Agreement, neither we nor Weatherford will pursue any cause of action that might adversely affect the validity or enforceability of each other's patents as listed in the exhibits to the Settlement Agreement, including any causes of action that may arise from the requests for review (“patent re-examinations”) we and Weatherford filed with the USPTO. However, the patent re-examinations already initiated continue with only the respective patent owner corresponding with the USPTO. Ongoing re-examination procedures include the patents owned by us and asserted in the Houston Suit. An oral hearing with the Board of Patent Appeals and Interferences (“BPAI”) at the USPTO occurred August 1, 2012. On November 27, 2012, the BPAI issued a decision in which all of the claims asserted in the Houston Suit were found to be valid in view of the prior art of record in the re-examination proceedings.

On November 11, 2010, we won a jury verdict against National Oilwell Varco, L.P. ("NOV"), Frank's Casing Crew and Rental Tools, Inc. ("Frank's") and Offshore Energy Services, Inc. ("OES") for infringing our U.S. Patent Nos. 7,140,443 and 7,377,324.  In that verdict, the jury found that NOV's accused product, the CRT 350, infringes all valid patent claims in the asserted patents, and that NOV contributorily infringed all valid patent claims in the asserted patents.  The jury also found that Frank's accused products, the (i) SuperTAWG, (ii) FA-1, and (iii) CRT 350, and OES's accused products, the CRT 350, infringe all valid patent claims in the asserted patents.  Damages were stipulated by the parties and the verdict is subject to entry of judgment and appeal.

On December 6, 2012, the District Court ruled on summary judgment that all of the asserted patent claims were obvious in view of prior art based on pre-trial evidence. This ruling overturns the favorable jury verdict. We filed a Notice of Appeal on December 21, 2012 seeking to reverse the District Court's ruling. At a procedural hearing on April 2, 2013, the District Court informed the parties that it did not intend for the December 6th Order to be final.  The District Court sent a letter to the Court of Appeals for the Federal Circuit on April 12, 2013 to confirm the District Court has jurisdiction “to proceed to set a schedule on discovery, briefing, and a bench trial on inequitable conduct.”

Tax Disputes: We have been previously advised by the Mexican tax authorities that they believe significant expenses incurred by our Mexican operations from 1996 through 2002 are not deductible for Mexican tax purposes.  Between 2002 and 2008, formal reassessments disallowing these deductions were issued for each of these years, all of which we appealed to the Mexican court system.  We have obtained final court rulings deciding all years in dispute in our favor, except for (i) 1996, as discussed below, and (ii) 2001 and 2002, both of which are currently before the Mexican Tax Court.  The outcomes of such appeals are uncertain.  We continue to believe that the basis for these reassessments was incorrect, and that the ultimate resolution of those outstanding matters will likely not have a material adverse effect on our consolidated financial position, results of operations, or cash flows.

In May 2002, we paid a deposit of $3.3 million to the Mexican tax authorities in order to appeal the reassessment for 1996.  In 2007, we requested and received a refund of approximately $3.7 million (the original deposit amount of $3.3 million plus $0.4 million in interest).  With the return of the $3.3 million deposit, the Mexican tax authorities issued a resolution indicating that we were owed an additional $3.4 million in interest and inflation adjustments but this amount had been retained by the tax authorities to satisfy a second reassessment for 1996.  We believed the second reassessment was invalid, and appealed it to the Mexican Tax Court.  In 2009, the Mexican Tax Court issued a decision accepting our arguments in part, which was subject to further appeal.

In May 2011, we received a refund of approximately $3.8 million (the remaining $3.4 million noted above, plus $0.4 million of additional interest and inflation adjustments) and recorded $2.4 million in interest income, $0.6 million in other income, partially offset by $0.4 million of related interest expense.  The remaining $1.2 million is included in other liabilities pending the ultimate resolution of this issue.

In July 2006, we received a claim for withholding tax, penalties and interest related to payments over the periods from 2000 to 2004 in a foreign jurisdiction.  We disagreed with this claim and litigated this matter.  During 2006, we accrued an estimated pre-tax exposure of $3.8 million and continued to accrue interest for this matter. In April 2012, we received final determination for the 2000 and 2002 tax years and have reversed $1.9 million of the accrual ($1.3 million to other income and a $0.6 million reduction of interest expense). In January 2013, we received final determination for the portion of the claim related to this accrual and have reversed $2.8 million of the accrual ($1.8 million to other income and a $1.0 million reduction of interest expense). At March 31, 2013, we have no accrual remaining for this claim.

In August 2008, we received a claim in Mexico for $1.1 million in fines and penalties related to the exportation of certain temporarily imported equipment that remained in Mexico beyond the authorized time limit for its return.  We disagree with this claim and are currently litigating the matter.  In December 2009, we received a decision from the Mexican Tax Court in our favor, which is subject to further appeal.  The outcome of this litigation is uncertain. No accrual has been recorded for this claim.

Other Contingencies

We are contingently liable under letters of credit and similar instruments that we enter into in connection with the importation of equipment to foreign countries and to secure our performance on certain contracts.  At March 31, 2013 and December 31, 2012, our total exposure under outstanding letters of credit was $8.1 million and $8.7 million, respectively.

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Document And Entity Information	3 Months Ended
	Mar. 31, 2013	Apr. 30, 2013
Document Entity Information [Abstract]
Entity Registrant Name	TESCO CORP
Entity Central Index Key	0001022705
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		38,948,932

XML

Segment Information

3 Months Ended

Mar. 31, 2013

Segment Reporting [Abstract]

Segment information

Segment Information

Business Segments

Prior to the sale of the Casing Drilling business during the second quarter of 2012, our four business segments were: Top Drive, Tubular Services, Casing Drilling, and Research and Engineering. On June 4, 2012, the Company completed the sale of substantially all of the assets of the Casing Drilling segment, which consisted of the proprietary Casing Drilling technology. Our Top Drive segment is comprised of top drive sales, top drive rentals, and after-market sales and service.  Our Tubular Services segment includes both our proprietary and conventional tubular services.  Our Research and Engineering segment is comprised of our internal research and development activities related to our proprietary tubular services and top drive model development, as well as the Casing Drilling technology prior to the sale.

We measure the results of our business segments using, among other measures, each segment’s operating income, which includes certain corporate overhead allocations.  Overhead costs include field administration and operations support.  At a business segment level, we incur costs directly and indirectly associated with revenue.  Direct costs include expenditures specifically incurred for the generation of revenue, such as personnel costs on location or transportation, maintenance and repair, and depreciation of our revenue-generating equipment.

Certain sales and marketing activities, financing activities, corporate general and administrative expenses, other (income) expense, and income taxes are not allocated to our business segments.

Goodwill is allocated to the business segment to which it specifically relates.  Our goodwill has been allocated to the Tubular Services segment.

Significant financial information relating to our business segments is presented below (in thousands):

	Three Months Ended March 31, 2013
	Top Drive		Tubular Services		Casing Drilling		Research & Engineering			Corporate and Other			Total
Revenue	$	75,569	$	51,095	$	431	$	—		$	—		$	127,095
Depreciation and amortization	2,807		6,109		—		24			1,089			10,029
Operating income (loss)	14,959		7,427		1,877		(2,029		)	(10,502		)	11,732
Other expense													(891		)
Income before income taxes													$	12,623

	Three Months Ended March 31, 2012
	Top Drive		Tubular Services		Casing Drilling			Research & Engineering			Corporate and Other			Total
Revenue	$	101,816	$	43,471	$	7,134		$	—		$	—		$	152,421
Depreciation and amortization	2,913		5,818		1,083			20			946			10,780
Operating income (loss)	24,893		4,942		(853		)	(2,542		)	(7,419		)	19,021
Other expense														(1,441		)
Income before income taxes														$	20,462

Geographic Areas

We attribute revenue to geographic regions based on the location of the customer.  Generally, for service activities, this will be the region in which the service activity occurs.  For equipment sales, this will be the region in which the sale transaction is complete and title transfers.  Our revenue by geographic area for the three months ended March 31, 2013 and 2012 was as follows (in thousands):

	Three Months Ended March 31,
	2013		2012
Canada	$	38,601	$	56,534
United States	33,783		38,423
South America	15,153		15,081
Mexico	12,399		12,116
Asia Pacific	12,564		11,138
Europe, Africa and Middle East	10,000		7,773
Russia	4,595		11,356
Total	$	127,095	$	152,421

The physical location of our net property, plant and equipment by geographic area as of March 31, 2013 and December 31, 2012 was as follows (in thousands):

	Top Drive		Tubular Services		Overhead, Corporate and Other		March 31, 2013
United States	$	19,882	$	16,446	$	14,415	$	50,743
Mexico	34,057		7,911		163		42,131
South America	9,161		8,822		841		18,824
Asia Pacific	7,786		20,474		148		28,408
Russia	18,643		696		28		19,367
Europe, Africa and Middle East	4,492		27,415		4,839		36,746
Canada	7,281		3,549		1,531		12,361
Total	$	101,302	$	85,313	$	21,965	$	208,580

	Top Drive		Tubular Services		Overhead, Corporate and Other		December 31, 2012
United States	$	18,731	$	16,975	$	13,316	$	49,022
Mexico	34,431		8,611		368		43,410
South America	9,146		9,703		248		19,097
Asia Pacific	7,902		20,619		69		28,590
Russia	18,005		2,128		29		20,162
Europe, Africa and Middle East	3,716		28,918		4,955		37,589
Canada	8,122		3,677		264		12,063
Total	$	100,053	$	90,631	$	19,249	$	209,933

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Condensed Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Revenue
Products	$ 48,592	$ 68,941
Services	78,503	83,480
Total revenue	127,095	152,421
Cost of sales and services
Products	38,188	52,310
Services	63,883	67,485
Total cost of sales and services	102,071	119,795
Selling, general and administrative	12,747	11,063
Gain on sale of Casing Drilling	(1,484)	0
Research and engineering	2,029	2,542
Total operating expenses	115,363	133,400
Operating income	11,732	19,021
Other expense (income)
Interest expense	(470)	(358)
Interest income	(23)	(31)
Foreign exchange loss	429	280
Other expense (income)	(827)	(1,332)
Total other expense	(891)	(1,441)
Income before income taxes	12,623	20,462
Income tax provision	3,787	6,043
Net income	$ 8,836	$ 14,419
Earnings per share:
Basic (usd per share)	$ 0.23	$ 0.37
Diluted (usd per share)	$ 0.22	$ 0.37
Weighted average number of shares:
Basic (shares)	38,932	38,583
Diluted (shares)	39,430	39,066

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Property, plant and equipment

3 Months Ended

Mar. 31, 2013

Property, Plant and Equipment [Abstract]

Property, plant and equipment

Property, plant and equipment

At March 31, 2013 and December 31, 2012, property, plant, and equipment, at cost, by major category were as follows (in thousands):

	March 31, 2013			December 31, 2012
Land, buildings and leaseholds	$	26,345		$	26,273
Drilling equipment	323,713			317,450
Manufacturing equipment	10,674			10,110
Office equipment and other	31,370			31,086
Capital work in progress	10,192			13,509
	402,294			398,428
Less: Accumulated depreciation	(193,714		)	(188,495		)
	$	208,580		$	209,933

The net book value of used top drive rental equipment sold included in cost of sales and services on our unaudited condensed consolidated statements of income was $0.1 million for the three months ended March 31, 2013. Two used top drives were sold from our rental fleet during the three months ended March 31, 2013.

Depreciation and amortization expense for the three months ended March 31, 2013 and 2012 are included on our unaudited condensed consolidated statements of income as follows (in thousands):

	Three Months Ended March 31,
	2013		2012
Cost of sales and services	$	9,396	$	10,265
Selling, general and administrative expense	633		515
	$	10,029	$	10,780

Sale of Operating Assets

When top drive units from our rental fleet are sold, the sales proceeds are included in revenue and the net book value of the equipment sold is included in cost of sales and services.  Proceeds from the sale of used top drives are included in proceeds from the sale of operating assets and the difference between revenue and the cost of sales and services is included in gain on sale of operating assets in the accompanying unaudited condensed consolidated statement of cash flows.

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Inventories

3 Months Ended

Mar. 31, 2013

Inventory Disclosure [Abstract]

Inventories

Inventories

At March 31, 2013 and December 31, 2012, inventories, net of reserves for excess and obsolete inventories of $1.3 million and $1.3 million, respectively, by major classification were as follows (in thousands):

	March 31, 2013		December 31, 2012
Raw materials	$	64,176	$	68,347
Work in progress	10,543		4,029
Finished goods	51,353		52,130
	$	126,072	$	124,506

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Property, plant and equipment (Tables)

3 Months Ended

Mar. 31, 2013

Property, Plant and Equipment [Abstract]

Property, plant and equipment

At March 31, 2013 and December 31, 2012, property, plant, and equipment, at cost, by major category were as follows (in thousands):

	March 31, 2013			December 31, 2012
Land, buildings and leaseholds	$	26,345		$	26,273
Drilling equipment	323,713			317,450
Manufacturing equipment	10,674			10,110
Office equipment and other	31,370			31,086
Capital work in progress	10,192			13,509
	402,294			398,428
Less: Accumulated depreciation	(193,714		)	(188,495		)
	$	208,580		$	209,933

Depreciation and amortization expense

Depreciation and amortization expense for the three months ended March 31, 2013 and 2012 are included on our unaudited condensed consolidated statements of income as follows (in thousands):

	Three Months Ended March 31,
	2013		2012
Cost of sales and services	$	9,396	$	10,265
Selling, general and administrative expense	633		515
	$	10,029	$	10,780

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Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2013

Accounting Policies [Abstract]

Basis of presentation

Basis of Presentation

We prepared this Quarterly Report on Form 10-Q pursuant to instructions for quarterly reporting required to be filed with the Securities and Exchange Commission (“SEC”).  Because this is an interim period filing presented using a condensed format, it does not include all information and footnotes normally included in annual financial statements prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”).  You should read this report along with our Annual Report on Form 10-K for the year ended December 31, 2012, which contains a summary of our significant accounting policies and other disclosures.  The condensed consolidated financial statements as of March 31, 2013 and for the quarters ended March 31, 2013 and 2012 are unaudited.  We derived the unaudited condensed consolidated balance sheet as of December 31, 2012 from the audited consolidated balance sheet filed in our 2012 Annual Report on Form 10-K.  In our opinion, we have made adjustments, all of which were normal recurring adjustments unless otherwise disclosed herein, that we believe are necessary for a fair statement of the balance sheets, results of operations, and cash flows, as applicable.

These unaudited condensed consolidated financial statements include the accounts of all consolidated subsidiaries after the elimination of all significant intercompany accounts and transactions.

Fair value of financial instruments

Fair Value of Financial Instruments

At March 31, 2013, the carrying amount of cash and cash equivalents, accounts receivable trade, restricted cash, non-trade receivables, accounts payable, and accrued liabilities approximated their fair value due to their short maturities. At March 31, 2013, the carrying amount of our long term debt approximated its fair value.  The fair value of our long term debt is determined using observable inputs and is based on current market interest rates for debt issued with similar maturities by companies with risk profiles similar to ours (Level 2).

Subsequent events

Subsequent Events

We conducted our subsequent events review through the date on which these unaudited condensed consolidated financial statements were filed with the SEC.

Recent accounting pronouncements

Recent Accounting Pronouncements

Each reporting period we consider all newly issued but not yet adopted accounting and reporting guidance applicable to our operations and the preparation of our consolidated financial statements. We do not believe that any issued accounting and reporting guidance not yet adopted by us will have a material impact on our unaudited condensed consolidated financial statements.

Sale of operating assets

Sale of Operating Assets

When top drive units from our rental fleet are sold, the sales proceeds are included in revenue and the net book value of the equipment sold is included in cost of sales and services.  Proceeds from the sale of used top drives are included in proceeds from the sale of operating assets and the difference between revenue and the cost of sales and services is included in gain on sale of operating assets in the accompanying unaudited condensed consolidated statement of cash flows.

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Income Taxes

3 Months Ended

Mar. 31, 2013

Income Tax Disclosure [Abstract]

Income taxes

Income Taxes

Tesco Corporation is an Alberta, Canada corporation.  We conduct business and are taxed on profits earned in a number of jurisdictions around the world.  Income taxes have been recorded based on the laws and rates in effect in the countries in which operations are conducted or in which we are considered a resident for income tax purposes.

Our income tax provision for the three months ended March 31, 2013 and 2012 was as follows (in thousands):

	Three Months Ended March 31,
	2013			2012
Current tax provision	$	4,101		$	3,384
Deferred tax provision	(314		)	2,659
Income tax provision	$	3,787		$	6,043

Our effective tax rate, which is income tax expense as a percentage of pre-tax earnings, was 30% for the three months ended March 31, 2013 and the same period in 2012.

At December 31, 2012, we had an accrual for uncertain tax positions of $2.2 million.  There was no change to this accrual during the first quarter of 2013, leaving a balance of $2.2 million at March 31, 2013. The accrual for uncertain tax positions is included in accrued and other current liabilities or other liabilities in our consolidated balance sheet based on whether we anticipate the uncertainties to be resolved within the next 12 months. At March 31, 2013, $1.0 million is included in accrued and other current liabilities, and $1.2 million is included in other liabilities.  The resolution of these uncertainties should not have a material impact on our effective tax rate.

Certain state and foreign tax filings remain open to examination.  We believe that any assessment on these filings will not have a material impact on our financial position, results of operations, or cash flows.  We believe that appropriate provisions for all outstanding issues have been made for all jurisdictions and all open years.  However, audit outcomes and the timing of audit settlements are subject to significant uncertainty.  Therefore, additional provisions on tax-related matters could be recorded in the future as revised estimates are made or the underlying matters are settled or otherwise resolved.

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Warranties

3 Months Ended

Mar. 31, 2013

Product Warranties Disclosures [Abstract]

Warranties

Warranties

Changes in our warranty accrual for the three months ended March 31, 2013 were as follows (in thousands):

	March 31, 2013
Balance as of January 1, 2013	$	3,719
Charged to expense, net	1,325
Deductions	(1,475		)
Balance as of March 31, 2013	$	3,569

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Earnings per Share

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Earnings per share

Earnings per Share

Weighted average shares

The following table reconciles basic and diluted weighted average shares (in thousands):

	Three Months Ended March 31,
	2013	2012
Basic weighted average number of shares outstanding	38,932	38,583
Dilutive effect of stock-based compensation	498	483
Diluted weighted average number of shares outstanding	39,430	39,066
Anti-dilutive options excluded from calculation due to exercise prices	1,430	654

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Long term debt

3 Months Ended

Mar. 31, 2013

Debt Disclosure [Abstract]

Long term debt

Long term debt

Long term debt consists of the following (in thousands):

	March 31, 2013			December 31, 2012
Capital leases	203			261
Current portion of long term debt	(100		)	(119		)
Non-current portion of long term debt	$	103		$	142

As part of our acquisition of Premiere Casing Services - Egypt S.A.E ("Premiere") in 2011, we assumed $7.4 million of outstanding debt at the acquisition date of October 16, 2011. During 2012, we paid off a significant amount of the outstanding balances related to Premiere's capital leases and all of the balances related to the notes payable. At March 31, 2013 the outstanding balance of Premiere's capital leases was $0.2 million.

At March 31, 2013, we had a credit agreement which was entered into on April 27, 2012, to provide a revolving line of credit of $125 million, including up to $20 million of swing line loans (collectively, the “Revolver”). The credit facility has a term of five years and all outstanding borrowings on the Revolver are due and payable on April 27, 2017.  The credit facility bears interest at a margin above LIBOR, federal funds rate, or the prime rate for U.S. dollar loans as determined by JPMorgan Chase Bank, N.A. in New York.  We are required to pay a commitment fee on available, but unused, amounts of the credit facility of 0.375-0.500 percent per annum and a letter of credit fee of 1.00-2.00 percent per annum on outstanding face amounts of letters of credit issued under the credit facility. Amounts available under the Revolver are reduced by letters of credit issued under our credit facility, not to exceed $50 million in the aggregate.  Amounts available under the swing line loans may also be reduced by letters of credit or by means of a credit to a general deposit account of the applicable borrower.  The availability of future borrowings may also be limited in order to maintain certain financial ratios required under the covenants.  The credit facility contains covenants that we consider usual and customary for an agreement of this type, including a leverage ratio, a minimum net worth, and limitations on allowable amounts for the disposal of obsolete assets and annual capital expenditures, and a fixed charge coverage ratio.  The credit facility prohibits incurring any additional indebtedness outside the existing credit facility in excess of $50 million, paying cash dividends to shareholders, and contains other restrictions, which are standard to the industry.  All of our direct and indirect material subsidiaries in the United States, Canada, Argentina, Mexico, and Indonesia as well as one of our Cyprus subsidiaries are guarantors of any borrowings under the credit facility.  

Under the Revolver at March 31, 2013, we had no outstanding borrowings, $4.7 million in letters of credit outstanding and $120.3 million in available borrowing capacity. We were in compliance with our bank covenants at March 31, 2013.

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Property, plant and equipment- Units Sold (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013 top_drive
Property, Plant and Equipment [Abstract]
Net book value of used top drives sold from rental fleet	$ 0.1
Number of used top drives sold	2

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Details of Certain Accounts (Tables)

3 Months Ended

Mar. 31, 2013

Details of Certain Accounts [Abstract]

Schedule of prepaid and other current assets

At March 31, 2013 and December 31, 2012, prepaid and other current assets consisted of the following (in thousands):

	March 31, 2013		December 31, 2012
Prepaid taxes other than income taxes	$	12,177	$	9,645
Deposits	5,030		3,948
Prepaid insurance	3,617		4,893
Other prepaid expenses	4,153		4,730
Restricted cash	6,915		6,953
Deferred job costs	3,176		2,969
Non-trade receivables	8,896		7,193
	$	43,964	$	40,331

Schedule of accrued liabilities

At March 31, 2013 and December 31, 2012, accrued and other current liabilities consisted of the following (in thousands):

	March 31, 2013		December 31, 2012
Accrued payroll and benefits	$	13,513	$	15,520
Accrued taxes other than income taxes	11,373		10,809
Other current liabilities	15,998		15,243
	$	40,884	$	41,572

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Income Taxes (Tables)

3 Months Ended

Mar. 31, 2013

Income Tax Disclosure [Abstract]

Schedule of components of income tax expense (benefit)

Our income tax provision for the three months ended March 31, 2013 and 2012 was as follows (in thousands):

	Three Months Ended March 31,
	2013			2012
Current tax provision	$	4,101		$	3,384
Deferred tax provision	(314		)	2,659
Income tax provision	$	3,787		$	6,043

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Long term debt- Narrative (Details) (USD $)					0 Months Ended		0 Months Ended
	Oct. 16, 2011 Premiere [Member]	Mar. 31, 2013 Capital leases [Member]	Dec. 31, 2012 Capital leases [Member]	Mar. 31, 2013 Capital leases [Member] Premiere [Member]	Apr. 27, 2012 Credit revolver [Member]	Mar. 31, 2013 Credit revolver [Member]	Apr. 27, 2012 Minimum [Member] Credit revolver [Member]	Apr. 27, 2012 Maximum [Member] Credit revolver [Member]
Debt Instrument [Line Items]
Outstanding debt assumed	$ 7,400,000
Long-term debt		203,000	261,000	200,000
Current borrowing capacity					125,000,000
Swing line loans, current borrowing capacity					20,000,000
Line of credit facility term					5 years
Unused capacity, commitment fee percentage (percent)							0.375%	0.50%
Letter of credit fee percentage (percent)							1.00%	2.00%
Maximum borrowing capacity, reduced by letters of credit					50,000,000
Line of credit facility, amount outstanding						0
Letters of credit, amount outstanding						4,700,000
Available borrowing capacity						$ 120,300,000

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Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Operating Activities
Net income	$ 8,836	$ 14,419
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Depreciation and amortization	10,029	10,780
Stock compensation expense	1,650	727
Bad debt expense	1,070	369
Deferred income taxes	(314)	2,659
Amortization of financial items	76	46
Gain on sale of operating assets	(3,071)	(5,310)
Changes in operating assets and liabilities:
Accounts receivable trade, net	4,992	(9,225)
Inventories	(1,676)	(16,017)
Prepaid and other current assets	(3,186)	2,722
Accounts payable and accrued liabilities	(6,453)	(9,167)
Income taxes recoverable	(2,882)	(266)
Other noncurrent assets and liabilities, net	(1,067)	260
Net cash provided by (used for) operating activities	8,004	(8,003)
Investing Activities
Additions to property, plant and equipment	(9,010)	(17,866)
Proceeds on sale of operating assets	1,859	820
Proceeds on sale of Casing Drilling, net of transaction costs	2,208	0
Other, net	38	73
Net cash used for investing activities	(4,905)	(16,973)
Financing Activities
Issuances of debt	0	26,000
Repayments of debt	(58)	(6,325)
Proceeds from exercise of stock options	121	123
Net cash provided by financing activities	63	19,798
Change in cash and cash equivalents	3,162	(5,178)
Net cash and cash equivalents, beginning of period	22,014	23,069
Net cash and cash equivalents, end of period	25,176	17,891
Supplemental cash flow information
Cash payments for interest	121	88
Cash payments for income taxes	7,567	3,620
Cash received for income tax refunds	374	385
Property, plant and equipment accrued in accounts payable	$ 861	$ 967

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Details of Certain Accounts

3 Months Ended

Mar. 31, 2013

Details of Certain Accounts [Abstract]

Details of certain accounts

Details of Certain Accounts

At March 31, 2013 and December 31, 2012, prepaid and other current assets consisted of the following (in thousands):

	March 31, 2013		December 31, 2012
Prepaid taxes other than income taxes	$	12,177	$	9,645
Deposits	5,030		3,948
Prepaid insurance	3,617		4,893
Other prepaid expenses	4,153		4,730
Restricted cash	6,915		6,953
Deferred job costs	3,176		2,969
Non-trade receivables	8,896		7,193
	$	43,964	$	40,331

At March 31, 2013 and December 31, 2012, accrued and other current liabilities consisted of the following (in thousands):

	March 31, 2013		December 31, 2012
Accrued payroll and benefits	$	13,513	$	15,520
Accrued taxes other than income taxes	11,373		10,809
Other current liabilities	15,998		15,243
	$	40,884	$	41,572

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Long term debt (Tables)

3 Months Ended

Mar. 31, 2013

Debt Disclosure [Abstract]

Schedule of long-term debt instruments

Long term debt consists of the following (in thousands):

	March 31, 2013			December 31, 2012
Capital leases	203			261
Current portion of long term debt	(100		)	(119		)
Non-current portion of long term debt	$	103		$	142

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Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Income Tax Disclosure [Abstract]
Current tax provision	$ 4,101	$ 3,384
Deferred tax provision	(314)	2,659
Income tax provision	$ 3,787	$ 6,043

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Sale of Casing Drilling (Tables)

3 Months Ended

Mar. 31, 2013

Disposal Group, Including Discontinued Operation, Additional Disclosures [Abstract]

Income statement, balance sheet and additional disclosures

The table below sets forth the details contributing to the gain on sale (in thousands):

Total cash consideration	$	46,624
Fixed assets, net	(11,999		)
Inventories, net	(10,839		)
Accounts receivable, net	(8,316		)
Transaction costs	(1,633		)
Gain on sale of Casing Drilling	$	13,837