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v2.4.1.9

CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2015 | Mar. 31, 2014
Cash flows from operating activities: |  |  |  |
Net income | $ 9,125 us-gaap_ProfitLoss |  | $ 34,822 us-gaap_ProfitLoss |
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |
Depreciation, depletion, amortization and impairment | 175,382 pten_DepreciationDepletionAmortizationAndImpairment |  | 147,322 pten_DepreciationDepletionAmortizationAndImpairment |
Tax expense on stock based compensation | (34)us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities |  |  |
Dry holes and abandonments | 46 us-gaap_ExplorationAbandonmentAndImpairmentExpense |  | 283 us-gaap_ExplorationAbandonmentAndImpairmentExpense |
Deferred income tax (benefit) expense | (23,800)us-gaap_DeferredIncomeTaxExpenseBenefit |  | (9,993)us-gaap_DeferredIncomeTaxExpenseBenefit |
Stock-based compensation expense | 6,855 us-gaap_ShareBasedCompensation |  | 6,711 us-gaap_ShareBasedCompensation |
Net gain on asset disposals | (2,916)us-gaap_GainLossOnSaleOfPropertyPlantEquipment | [1] | (1,744)us-gaap_GainLossOnSaleOfPropertyPlantEquipment | [1]
Changes in operating assets and liabilities: |  |  |  |
Accounts receivable | 176,672 us-gaap_IncreaseDecreaseInAccountsReceivable |  | (35,434)us-gaap_IncreaseDecreaseInAccountsReceivable |
Income taxes receivable/payable | 112,711 us-gaap_IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable |  | 14,180 us-gaap_IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable |
Inventory and other assets | 9,724 us-gaap_IncreaseDecreaseInInventoriesAndOtherOperatingAssets |  | 2,513 us-gaap_IncreaseDecreaseInInventoriesAndOtherOperatingAssets |
Accounts payable | (65,196)us-gaap_IncreaseDecreaseInAccountsPayable |  | 22,264 us-gaap_IncreaseDecreaseInAccountsPayable |
Accrued expenses | 5,559 us-gaap_IncreaseDecreaseInAccruedLiabilities |  | (1,648)us-gaap_IncreaseDecreaseInAccruedLiabilities |
Other liabilities | 857 us-gaap_IncreaseDecreaseInOtherOperatingLiabilities |  | 221 us-gaap_IncreaseDecreaseInOtherOperatingLiabilities |
Net cash provided by operating activities | 404,985 us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations |  | 179,497 us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations |
Cash flows from investing activities: |  |  |  |
Purchases of property and equipment | (241,466)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment |  | (170,372)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment |
Proceeds from disposal of assets | 5,827 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment |  | 6,590 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment |
Net cash used in investing activities | (235,639)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations |  | (163,782)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations |
Cash flows from financing activities: |  |  |  |
Purchases of treasury stock |  |  | (43)us-gaap_PaymentsForRepurchaseOfCommonStock |
Dividends paid | (14,640)us-gaap_PaymentsOfDividends |  | (14,456)us-gaap_PaymentsOfDividends |
Tax benefit related to stock-based compensation |  |  | 1,961 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities |
Debt issuance costs | (1,940)us-gaap_PaymentsOfDebtIssuanceCosts |  |  |
Proceeds from long-term debt | 200,000 us-gaap_ProceedsFromIssuanceOfLongTermDebt |  |  |
Repayment of long-term debt | (2,500)us-gaap_RepaymentsOfLongTermDebt |  | (2,500)us-gaap_RepaymentsOfLongTermDebt |
Proceeds from borrowings under revolving credit facility | 54,000 us-gaap_ProceedsFromLongTermLinesOfCredit |  |  |
Repayment of borrowings under revolving credit facility | (357,000)us-gaap_RepaymentsOfLongTermLinesOfCredit |  |  |
Proceeds from exercise of stock options |  |  | 8,033 us-gaap_ProceedsFromStockOptionsExercised |
Net cash provided by (used in) financing activities | (122,080)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations |  | (7,005)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations |
Effect of foreign exchange rate changes on cash | (3,361)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents |  | (473)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents |
Net increase in cash and cash equivalents | 43,905 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease |  | 8,237 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease |
Cash and cash equivalents at beginning of period | 43,012 us-gaap_CashAndCashEquivalentsAtCarryingValue |  | 249,509 us-gaap_CashAndCashEquivalentsAtCarryingValue |
Cash and cash equivalents at end of period | 86,917 us-gaap_CashAndCashEquivalentsAtCarryingValue |  | 257,746 us-gaap_CashAndCashEquivalentsAtCarryingValue |
Net cash (paid) received during the period for: |  |  |  |
Interest, net of capitalized interest of $1,592 in 2015 and $1,667 in 2014 | (783)us-gaap_InterestPaidNet |  |  |
Income taxes | 83,135 us-gaap_IncomeTaxesPaidNet |  | (10,001)us-gaap_IncomeTaxesPaidNet |
Non-cash investing and financing activities: |  |  |  |
Net (decrease) increase in payables for purchases of property and equipment | (884)pten_IncreaseDecreaseInPayablesRelatedToPurchasesOfPropertyAndEquipment |  | 68,802 pten_IncreaseDecreaseInPayablesRelatedToPurchasesOfPropertyAndEquipment |
Net decrease (increase) in deposits on equipment purchases | $ 32,220 pten_NetDecreaseIncreaseInDepositsOnEquipmentPurchases |  | $ (4,677)pten_NetDecreaseIncreaseInDepositsOnEquipmentPurchases |
[1] | Net gains or losses associated with the disposal of assets relate to corporate strategy decisions of the executive management group. Accordingly, the related gains or losses have been separately presented and excluded from the results of specific segments.

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- Definition The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591552-111686 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591551-111686 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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