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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, RISKS AND UNCERTAINTIES | 12 Months Ended
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Sep. 30, 2019
Accounting Policies [Abstract] |
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, RISKS AND UNCERTAINTIES | NOTE 2 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, RISKS AND UNCERTAINTIES Basis of Presentation The accompanying consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). We classified our former Venezuelan operation as a discontinued operation in the third quarter of fiscal year 2010, as more fully described in Note 4—Discontinued Operations. Unless indicated otherwise, the information in the Notes to Consolidated Financial Statements relates only to our continuing operations. Principles of Consolidation The consolidated financial statements include the accounts of Helmerich & Payne, Inc. and its domestic and foreign subsidiaries. Consolidation of a subsidiary begins when the Company obtains control over the subsidiary and ceases when the Company loses control of the subsidiary. Specifically, income and expenses of a subsidiary acquired or disposed of during the fiscal year are included in the consolidated statement of profit or loss and other comprehensive income from the date the Company gains control until the date when the Company ceases to control the subsidiary. All significant intercompany accounts and transactions have been eliminated in consolidation. Foreign Currencies Our functional currency, together with all our foreign subsidiaries, is the U.S. dollar. Monetary assets and liabilities denominated in currencies other than the U.S. dollar are translated at exchange rates in effect at the end of the period, and the resulting gains and losses are recorded on our statement of operations. Aggregate foreign currency losses of $8.2 million, $4.0 million and $7.1 million in fiscal years 2019, 2018 and 2017, respectively, are included in direct operating costs. Use of Estimates The preparation of our financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Cash, Cash Equivalents, and Restricted Cash Cash and cash equivalents include cash on hand, demand deposits with banks and all highly liquid investments with original maturities of three months or less. Our cash, cash equivalents and short-term investments are subject to potential credit risk, and certain of our cash accounts carry balances greater than the federally insured limits. We had restricted cash and cash equivalents of $35.0 million and $41.8 million at September 30, 2019 and 2018, respectively. Of the total at September 30, 2019 and 2018, $3.0 million and $11.3 million, respectively, is related to the acquisition of drilling technology companies described in Note 3—Business Combinations, $2.0 million as of both fiscal year ends is from the initial capitalization of the captive insurance company, and $30.0 million and $28.5 million, respectively, represents an additional amount management has elected to restrict for the purpose of potential insurance claims in our wholly-owned captive insurance company. The restricted amounts are primarily invested in short-term money market securities. See "—Recently Issued Accounting Updates" below for changes to the presentation of restricted cash effective October 1, 2018 as a result of adopting Accounting Standards Update (“ASU”) No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash. The restricted cash and cash equivalents are reflected in the Consolidated Balance Sheets as follows:
| September 30,
(in thousands) | 2019 |  | 2018 |  | 2017
Cash | $ | 347,943 |  |  | $ | 284,355 |  |  | $ | 521,375 |
Restricted Cash |  |  |  |  |
Prepaid expenses and other | 31,291 |  |  | 39,830 |  |  | 32,439 |
Other assets | 3,737 |  |  | 2,000 |  |  | 6,695 |
Total cash, cash equivalents, and restricted cash | $ | 382,971 |  |  | $ | 326,185 |  |  | $ | 560,509 |
Inventories of Materials and Supplies Inventories are primarily replacement parts and supplies held for consumption in our drilling operations. Inventories are valued at the lower of cost or net realizable value. Cost is determined on a weighted average basis and includes the cost of materials, shipping, duties and labor. Net realizable value is defined as the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. The reserves for excess and obsolete inventory were $11.5 million and $9.9 million for fiscal years 2019 and 2018, respectively. Investments We maintain investments in equity securities of certain publicly traded companies. We recognize our marketable equity securities that have readily determinable fair values at fair value, with changes in such values reflected in net income. We adopted ASU No. 2016-01 on October 1, 2018, and as a result, we recognize our marketable equity securities that have readily determinable fair values at fair value, with changes in such values reflected in net income. Previously, we recognized changes in fair value of equity securities in other comprehensive income in the Consolidated Statements of Comprehensive Income (Loss). There is no longer a requirement to consider whether the decline in fair value is other-than-temporary. Property, Plant, and Equipment Property, plant and equipment are stated at cost less accumulated depreciation. Substantially all property, plant and equipment are depreciated using the straight-line method based on the estimated useful lives of the assets after deducting their salvage values. The amount of depreciation expense we record is dependent upon certain assumptions, including an asset’s estimated useful life, rate of consumption, and corresponding salvage value. We periodically review these assumptions and may change one or more of these assumptions. Changes in our assumptions may require us to recognize, on a prospective basis, increased or decreased depreciation expense. We capitalize interest on major projects during construction. Interest is capitalized based on the average interest rate on related debt. We had no capitalized interest for fiscal year 2019 and $0.4 million and $0.3 million of capitalized interest for 2018 and 2017, respectively. We review long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Changes that could prompt such an assessment include a significant decline in revenue or cash margin per day, extended periods of low rig asset group utilization, changes in market demand for a specific asset, obsolescence, completion of specific contracts, restructuring of our drilling fleet, and/or overall general market conditions. If the review of the long-lived assets indicates that the carrying value of these assets/asset groups is more than the estimated undiscounted future cash flows projected to be realized from the use of the asset and its eventual disposal an impairment charge is made, as required, to adjust the carrying value down to the estimated fair value of the asset. The estimated fair value is determined based upon either an income approach using estimated discounted future cash flows, a market approach considering factors such as recent market sales of rigs of other companies and our own sales of rigs, appraisals and other factors, a cost approach utilizing reproduction costs new as adjusted for the asset age and condition, and/or a combination of multiple approaches. Cash flows are estimated by management considering factors such as prospective market demand, margins, recent changes in rig technology and its effect on each rig’s marketability, any investment required to make a rig operational, suitability of rig size and make up to existing platforms, and competitive dynamics including industry utilization. Long-lived assets that are held for sale are recorded at the lower of carrying value or the fair value less costs to sell. Goodwill and Intangible Assets Goodwill represents the excess of purchase price over the fair value of net assets acquired in a business combination, at the date of acquisition. Goodwill is not amortized but is tested for potential impairment at the reporting unit level at a minimum on an annual basis in the fourth fiscal quarter of each fiscal year or when it is more likely than not that the carrying value may exceed fair value. If an impairment is determined to exist, an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value is recognized, limited to the total amount of goodwill allocated to that reporting unit. The reporting unit level is defined as an operating segment or one level below an operating segment. Finite-lived intangible assets are amortized using the straight-line method over the period in which these assets contribute to our cash flows, generally estimated to be 5 to 20 years and are evaluated for impairment in accordance with our policies for valuation of long-lived assets. Drilling Revenues Contract drilling services revenues are comprised of daywork drilling contracts for which the related revenues and expenses are recognized as services are performed and collection is reasonably assured. For certain contracts, we receive payments contractually designated for the mobilization of rigs and other drilling equipment. Mobilization payments received, and direct costs incurred for the mobilization, are deferred and recognized on a straight-line basis as the drilling service is provided. Costs incurred to relocate rigs and other drilling equipment to areas in which a contract has not been secured are expensed as incurred. Reimbursements received for out-of-pocket expenses are recorded as both revenues and direct costs. Reimbursements for fiscal years 2019, 2018 and 2017 were $322.8 million, $274.7 million and $179.9 million, respectively. For contracts that are terminated by customers prior to the expirations of their fixed terms, contractual provisions customarily require early termination amounts to be paid to us. Revenues from early terminated contracts are recognized when all contractual requirements have been met. Early termination revenue for fiscal years 2019, 2018 and 2017 was approximately $11.3 million, $17.1 million and $29.4 million, respectively. Rent Revenues We enter into leases with tenants in our rental properties consisting primarily of retail and multi-tenant warehouse space. The lease terms of tenants occupying space in the retail centers and warehouse buildings generally range from three to ten years. Minimum rents are recognized on a straight-line basis over the term of the related leases. Overage and percentage rents are based on tenants’ sales volume. Recoveries from tenants for property taxes and operating expenses are recognized in other operating revenues in the Consolidated Statements of Operations. Our rent revenues are as follows:
| Year Ended September 30,
(in thousands) | 2019 |  | 2018 |  | 2017
Minimum rents | $ | 10,168 |  |  | $ | 9,950 |  |  | $ | 9,735 |
Overage and percentage rents | 932 |  |  | 1,040 |  |  | 936 |
At September 30, 2019, minimum future rental income to be received on noncancelable operating leases was as follows (in thousands):
Fiscal Year | Amount
2020 | $ | 8,204 |
2021 | 6,239 |
2022 | 3,983 |
2023 | 2,858 |
2024 | 2,142 |
Thereafter | 5,990 |
Total | $ | 29,416 |
Leasehold improvement allowances are capitalized and amortized over the lease term. At September 30, 2019 and 2018, the cost and accumulated depreciation for real estate properties were as follows:
| September 30,
(in thousands) | 2019 |  | 2018
Real estate properties | $ | 72,507 |  |  | $ | 69,133 |
Accumulated depreciation | (43,570 | ) |  | (42,272 | )
| $ | 28,937 |  |  | $ | 26,861 |
Income Taxes Current income tax expense is the amount of income taxes expected to be payable for the current fiscal year. Deferred income taxes are computed using the liability method and are provided on all temporary differences between the financial basis and the tax basis of our assets and liabilities. We provide for uncertain tax positions when such tax positions do not meet the recognition thresholds or measurement standards prescribed in Accounting Standards Codification (“ASC”) 740, Income Taxes, which is more fully discussed in Note 8—Income Taxes. Amounts for uncertain tax positions are adjusted in periods when new information becomes available or when positions are effectively settled. We recognize accrued interest related to unrecognized tax benefits in interest expense and penalties in other expense in the Consolidated Statements of Operations. Earnings per Common Share Basic earnings per share is computed utilizing the two-class method and is calculated based on the weighted-average number of common shares outstanding during the periods presented. Diluted earnings per share is computed using the weighted-average number of common and common equivalent shares outstanding during the periods utilizing the two-class method for stock options and nonvested restricted stock. We have granted and expect to continue to grant to employees restricted stock grants that contain non-forfeitable rights to dividends. Such grants are considered participating securities under ASC 260, Earnings Per Share. As such, we have included these grants in the calculation of our basic earnings per share. Stock-Based Compensation Stock-based compensation expense is determined using a fair-value-based measurement method for all awards granted. During the fiscal year ended September 30, 2019, there were no new non-qualified stock options granted, as we have, prospectively and for fiscal year 2019, replaced stock options with performance share units as a component of our executives’ long-term equity incentive compensation. We have also eliminated stock options as an element of our director compensation program. The Board has determined to award stock-based compensation to directors solely in the form of restricted stock. The fair value of each option granted in prior years was estimated on the date of grant based on the Black-Scholes options-pricing model utilizing assumptions for a risk-free interest rate, volatility, dividend yield and expected remaining term of the awards. The assumptions used in calculating the fair value of stock-based payment awards represent management’s best estimates, but these estimates involve inherent uncertainties and the application of management judgment. The grant date fair value of performance share units is determined through use of the Monte Carlo simulation method. The Monte Carlo simulation method requires the use of highly subjective assumptions. Our key assumptions in the method include the price and the expected volatility of our stock and our self-determined peer group of companies’ (the "Peer Group") stock, risk free rate of return, dividend yields and cross-correlations between the Company and our Peer Group. Stock-based compensation is recognized on a straight-line basis over the requisite service periods of the stock awards, which is generally the vesting period. Compensation expense is recorded as a component of contract drilling services operating expenses and selling, general and administrative expenses in the Consolidated Statements of Operations. See Note 11—Stock-based Compensation for additional discussion on stock-based compensation. Treasury Stock Treasury stock purchases are accounted for under the cost method whereby the cost of the acquired stock is recorded as treasury stock. Gains and losses on the subsequent reissuance of shares are credited or charged to additional paid-in capital using the average-cost method. The stock to be offered pursuant to the grant of an award under the Helmerich & Payne, Inc. 2016 Omnibus Incentive Plan may be authorized as treasury shares. Comprehensive Income or Loss Other comprehensive income or loss refers to revenues, expenses, gains, and losses that are included in comprehensive income or loss but excluded from net income or loss. We report the components of other comprehensive income or loss, net of tax, by their nature and disclose the tax effect allocated to each component in the Consolidated Statements of Comprehensive Income (Loss). Leases We lease office space and equipment for use in operations. Leases are evaluated at inception or upon any subsequent material modification and, depending on the lease terms, are classified as either capital leases or operating leases as appropriate under ASC 840, Leases. For operating leases that contain built-in pre-determined rent escalations, rent expense is recognized on a straight-line basis over the life of the lease. Leasehold improvements are capitalized and amortized over the lease term. We do not have significant capital leases. Recently Issued Accounting Updates Changes to U.S. GAAP are established by the Financial Accounting Standards Board (“FASB”) in the form of ASUs to the FASB ASC. We consider the applicability and impact of all ASUs. ASUs not listed below were assessed and determined to be either not applicable or clarifications of ASUs listed below. The following tables provide a brief description of recent accounting pronouncements and our analysis of the effects on our financial statements:
Standard | Description | Date of Adoption | Effect on the Financial Statements or Other Significant Matters
Recently Adopted Accounting Pronouncements
ASU No. 2017-09, Compensation – Stock Compensation (Topic 718): Scope of Modification Accounting | Under the new guidance, modification accounting is required only if the fair value, the vesting conditions, or the classification of the award (as equity or liability) changes as a result of the change in terms or conditions. Regardless of whether the change to the terms or conditions of the award requires modification accounting, the existing disclosure requirements and other aspects of U.S. GAAP associated with modification, such as earnings per share, continue to apply. | October 1, 2018 | We adopted this ASU during the first quarter of fiscal year 2019, as required. There was no impact to our consolidated financial statements and disclosures.
ASU No. 2017-07, Compensation – Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost | The ASU changes how employers that sponsor defined benefit pension and/or other postretirement benefit plans present the net periodic benefit cost in the income statement. Employers should present the service cost component of net periodic benefit cost in the same income statement line item(s) as other employee compensation costs arising from services rendered during the period. Employers should present the other components of the net periodic benefit cost separately from the line item(s) that includes the service cost and outside of any subtotal of operating income, if one is presented. The amendments are applied retrospectively for the presentation of the service cost component and other components of net periodic pension cost and net periodic postretirement benefit cost in the income statement. | October 1, 2018 | We adopted this ASU during the first quarter of fiscal year 2019, as required, on a retrospective basis. The retrospective impact was not material to our consolidated financial statements and disclosures.
Standard | Description | Date of Adoption | Effect on the Financial Statements or Other Significant Matters
ASU No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash | The ASU requires amounts generally described as restricted cash and restricted cash equivalents be included with cash and cash equivalents when reconciling the total beginning and ending cash amounts for the periods shown on the statement of cash flows. | October 1, 2018 | We adopted this ASU during the first quarter of fiscal year 2019, as required, on a retrospective basis. The retrospective impact on the consolidated statement of cash flows for the year ended September 30, 2018 and 2017 was an increase of $2.7 million and $9.6 million in net cash provided by operating activities, respectively.
ASU No. 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory | Under prior U.S. GAAP, the tax effects of intra-entity asset transfers (intercompany sales) were deferred until the transferred asset was sold to a third party or otherwise recovered through use. This was an exception to the principle in ASC 740, Income Taxes, that generally requires comprehensive recognition of current and deferred income taxes. The new guidance eliminates the exception for all intra-entity sales of assets other than inventory. As a result, a reporting entity recognizes the tax expense from the sale of the asset in the seller's tax jurisdiction when the transfer occurs, even though the pre-tax effects of that transaction are eliminated in consolidation. Any deferred tax asset that arises in the buyer's jurisdiction is also recognized at the time of the transfer. The new guidance does not apply to intra-entity transfers of inventory. The income tax consequences from the sale of inventory from one member of a consolidated entity to another will continue to be deferred until the inventory is sold to a third party. | October 1, 2018 | We adopted this ASU during the first quarter of fiscal year 2019, as required. There was no material impact to our consolidated financial statements and disclosures.
ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments | The ASU was intended to reduce diversity in practice in presentation and classification of certain cash receipts and cash payments by providing guidance on eight specific cash flow issues. One of the key changes is related to contingent consideration payments made after a business combination. Cash payments not made soon after the acquisition date of a business combination by an acquirer to settle a contingent consideration liability should be separated and classified as cash outflows for financing activities and operating activities. Cash payments up to the amount of the contingent consideration liability recognized at the acquisition date (including measurement-period adjustments) should be classified as financing activities; any excess should be classified as operating activities. | October 1, 2018 | We adopted this ASU during the first quarter of fiscal year 2019, as required, on a retrospective basis. The retrospective impact on the consolidated statement of cash flows for the year ended September 30, 2018 was a reclassification of $10.6 million from net cash provided by operating activities to net cash used in financing activities. There was no impact in fiscal year 2017.
ASU No. 2016-01, Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities | The standard requires entities to measure equity investments that do not result in consolidation and are not accounted for under the equity method at fair value and recognize any changes in fair value in net income. At adoption, a cumulative-effect adjustment to beginning retained earnings is recorded to reflect the fair value of such investments at the date of adoption in retained earnings rather than accumulated other comprehensive income. | October 1, 2018 | We adopted this ASU during the first quarter of fiscal year 2019, as required. As a result, changes in the fair value of our equity investments have been recognized in net income since the date of adoption, and our future results of operations will continue to be subject to stock market fluctuations for these investments. The cumulative catch up impact that was recorded to the beginning balance of retained earnings at October 1, 2018 was a reclassification of $44.0 million ($29.1 million after-tax) of cumulative gains from the beginning balance of accumulated other comprehensive income.
Standard | Description | Date of Adoption | Effect on the Financial Statements or Other Significant Matters
ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) | In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (“ASC 606”). The update outlined a single comprehensive model for companies to use in accounting for revenue arising from contracts with customers and superseded other revenue recognition guidance, including industry-specific guidance. The core principle of the guidance is that an entity should recognize revenue when promised goods or services are transferred to customers in an amount that reflects the consideration to which the entity expects to be entitled for those goods or services. The update also required disclosures enabling users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. Furthermore, as part of Topic 606, the FASB introduced ASC 340-40, Other Assets and Deferred Costs, which provides guidance on the capitalization of contract related costs that are not within the scope of other authoritative literature. Companies could use either a full retrospective or a modified retrospective approach to adopt the updates. | October 1, 2018 | We adopted this topic, using the modified retrospective transitional approach, during the first quarter of fiscal year 2019, as required. We recognized the cumulative effect by initially applying the revenue standard as an adjustment to the opening balance of retained earnings during the period (October 1, 2018). Refer to Note 10—Revenue from Contracts with Customers for the impact of the adoption.
ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement | This ASU eliminates, adds and modifies certain disclosure requirements for fair value measurements as part of the FASB’s disclosure framework project, where entities will no longer be required to disclose the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy, but public companies will be required to disclose the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements. This update is effective for annual and interim periods beginning after December 15, 2019. Early adoption is permitted. | June 30, 2019 | We early adopted this ASU during the third quarter of fiscal year 2019. The adoption did not have a material impact to our consolidated financial statements and disclosures. Refer to Note 13—Fair Value Measurement of Financial Instruments.
ASU No. 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220) Reclassification of Certain Tax Effects From Accumulated Other Comprehensive Income | This ASU relates to the impacts of the Tax Reform Act. The guidance permits the reclassification of certain income tax effects of the Tax Reform Act from Accumulated Other Comprehensive Income (Loss) to Retained Earnings. The guidance also requires certain new disclosures. This update is effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal periods and early adoption is permitted. Entities may adopt the guidance using one of two transition methods, retrospective to each period (or periods) in which the income tax effects of the Tax Reform Act related to the items remaining in Other Comprehensive Income are recognized or at the beginning of the period of adoption. | June 30, 2019 | We early adopted this ASU during the third quarter of fiscal year 2019. We reclassified $4.2 million from accumulated other comprehensive income (loss) to retained earnings for stranded income tax effects resulting from the Tax Reform Act. The adoption did not have a material impact to our consolidated financial statements and disclosures.
Standards that are not yet adopted as of September 30, 2019
ASU No. 2018-15, Intangibles - Goodwill and Other - Internal Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract | This ASU aims to reduce complexity in the accounting for costs of implementing a cloud computing service arrangement. ASU No. 2018-15 aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). This update is effective for annual and interim periods beginning after December 15, 2019. Early adoption is permitted. | October 1, 2019 | We plan to early adopt this ASU in the first quarter of fiscal year 2020. At this time, we are currently evaluating the impact the new guidance may have on our consolidated financial statements and disclosures; however, we do not believe the adoption of this ASU will have a material effect on the consolidated financial statements and disclosures.
Standard | Description | Date of Adoption | Effect on the Financial Statements or Other Significant Matters
ASU No. 2018-14, Compensation – Retirement Benefits – Defined Benefit Plans—General (Topic 715-20): Disclosure Framework – Changes to the Disclosure Requirements for Defined Benefit Plans | This ASU amends ASC 715 to add, remove, and clarify disclosure requirements related to defined benefit, pension and other postretirement plans. This update is effective for annual and interim periods ending after December 15, 2020. | October 1, 2021 | We are currently evaluating the impact the new guidance may have on our consolidated financial statements and disclosures.
ASU No. 2016-13, Financial Instruments – Credit Losses (Topic 326) and related ASUs issued subsequent | This ASU introduces a new model for recognizing credit losses on financial instruments based on an estimate of current expected credit losses. The new model will apply to: (1) loans, accounts receivable, trade receivables, and other financial assets measured at amortized cost, (2) loan commitments and certain other off-balance sheet credit exposures, (3) debt securities and other financial assets measured at fair value through other comprehensive income(loss), and (4) beneficial interests in securitized financial assets. This update is effective for annual and interim periods beginning after December 15, 2019. | October 1, 2020 | We are currently evaluating the impact the new guidance may have on our consolidated financial statements and disclosures.
ASU No. 2016-02, Leases (Topic 842) and related ASUs issued subsequent | ASU No. 2016-02 will require organizations that lease assets — referred to as “lessees” — to recognize on the balance sheet the assets and liabilities for the rights and obligations created by those leases with lease terms of more than 12 months. Lessor accounting remains substantially similar to current U.S. GAAP. In addition, disclosures of leasing activities are to be expanded to include qualitative along with specific quantitative information. ASU No. 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. ASU 2016-02 mandates a modified retrospective transition method of adoption with an option to use certain practical expedients. | October 1, 2019 | We adopted the new lease guidance on October 1, 2019, using the transition method that allows us to initially apply Topic 842 as of October 1, 2019 and recognize a cumulative-effect adjustment in the period of adoption, without restating prior years' financial statements. Refer to the paragraph below for additional disclosure.
Adoption of ASU No. 2016-02 - Leases As stated in the table above, we adopted ASU No. 2016-02 on October 1, 2019. Additionally, we have elected most of the standard’s available practical expedients upon adoption, including the package of practical expedients that allows us to not reassess expired or existing contracts for: (1) embedded leases, (2) lease classification and (3) initial direct costs. In addition, we are expecting to elect the Topic 842 practical expedient available to lessors to not separate lease and non-lease components and account for the combined component under Topic 606 when the non-lease component is the predominant element of the combined component. The lessor practical expedient is limited to circumstances in which the lease, if accounted for separately, would be classified as an operating lease under Topic 842. For existing contracts that do not require reassessment due to the practical expedient package we have elected, those contracts will continue to be classified in our financial statements according to our accounting policies in place at September 30, 2019. New contracts entered into or any contract in existence at September 30, 2019 modified on or after October 1, 2019 will be assessed in accordance with Topic 842 and Topic 606, as applicable. We are analyzing and updating data previously collected to evaluate the impact the adoption will have on our financial statements and implementing a system to capture the increased reporting and disclosure requirements. Currently, we tentatively estimate that, as a lessee, our assets and liabilities will increase by no more than $100 million upon adoption of the new lease guidance. Based upon the transition method and practical expedients we have elected, we do not believe the adoption of this standard will have a material effect on our statements of operations and cash flows. Cash Flows The following is a summary of the retrospective impact of our adoption of ASU No. 2016-15 and ASU 2016-18:
| Year Ended September 30, 2018
(in thousands) | Historical Accounting Method |  | Effect of Adoption of ASU No. 2016-15 |  | Effect of Adoption of ASU No. 2016-18 |  | As Adjusted
Consolidated Statements of Cash Flows |  |  |  |  |  |  |
Change in prepaid expenses and other | $ | (11,218 | ) |  | $ | — |  |  | $ | 7,391 |  |  | $ | (3,827 | )
Change in noncurrent assets | 10,263 |  |  | — |  |  | (4,695 | ) |  | 5,568 |
Change in accrued liabilities | 33,173 |  |  | 10,625 |  |  | — |  |  | 43,798 |
Net cash provided by operating activities | 544,531 |  |  | 10,625 |  |  | 2,696 |  |  | 557,852 |
Payment of contingent consideration from acquisition of business | — |  |  | (10,625 | ) |  | — |  |  | (10,625 | )
Net cash used in financing activities | (309,189 | ) |  | (10,625 | ) |  | — |  |  | (319,814 | )
| Year Ended September 30, 2017
(in thousands) | Historical Accounting Method |  | Effect of Adoption of ASU No. 2016-15 |  | Effect of Adoption of ASU No. 2016-18 |  | As Adjusted
Consolidated Statements of Cash Flows |  |  |  |  |  |  |
Change in prepaid expenses and other | $ | 24,579 |  |  | $ | — |  |  | $ | 4,873 |  |  | $ | 29,452 |
Change in noncurrent assets | 6,855 |  |  | — |  |  | 4,695 |  |  | 11,550 |
Net cash provided by operating activities | 361,631 |  |  | — |  |  | 9,568 |  |  | 371,199 |
Concentration of Credit Risk Financial instruments, which potentially subject us to concentrations of credit risk, consist primarily of temporary cash investments, short-term investments and trade receivables. The industry concentration has the potential to impact our overall exposure to market and credit risks, either positively or negatively, in that our customers could be affected by similar changes in economic, industry or other conditions. However, we believe that the credit risk posed by this industry concentration is offset by the creditworthiness of our customer base. We had revenues from individual customers that constituted 10 percent or more of our total revenues as follows:
(in thousands) | 2018 |  | 2017
EOG Resources, Inc. | $ | 258,194 |  |  | $ | 163,582 |
In fiscal year 2019, no individual customers constituted 10 percent or more of our total revenues. We place temporary cash investments in the U.S. with established financial institutions and invest in a diversified portfolio of highly rated, short-term money market instruments. Our trade receivables, primarily with established companies in the oil and gas industry, may impact credit risk as customers may be similarly affected by prolonged changes in economic and industry conditions. International sales also present various risks including governmental activities that may limit or disrupt markets and restrict the movement of funds. Most of our international sales, however, are to large international or government-owned national oil companies. We perform credit evaluations of customers and do not typically require collateral in support for trade receivables. We provide an allowance for doubtful accounts, when necessary, to cover estimated credit losses. Such an allowance is based on management’s knowledge of customer accounts. Volatility of Market Our operations can be materially affected by oil and gas prices. Oil and natural gas prices have been historically volatile and difficult to predict with any degree of certainty. While current energy prices are important contributors to positive cash flow for customers, expectations about future prices and price volatility are generally more important for determining a customer’s future spending levels. This volatility, along with the difficulty in predicting future prices, can lead many exploration and production companies to base their capital spending on more conservative estimates of commodity prices. As a result, demand for contract drilling services is not always purely a function of the movement of commodity prices. In addition, customers may finance their exploration activities through cash flow from operations, the incurrence of debt or the issuance of equity. Any deterioration in the credit and capital markets may cause difficulty for customers to obtain funding for their capital needs. A reduction of cash flow resulting from declines in commodity prices or a reduction of available financing may result in a reduction in customer spending and the demand for our services. This reduction in spending could have a material adverse effect on our operations. Self-Insurance We have accrued a liability for estimated workers’ compensation and other casualty claims incurred based upon cash reserves plus an estimate of loss development and incurred but not reported claims. The estimate is based upon historical trends. Insurance recoveries related to such liability are recorded when considered probable. We self-insure a significant portion of expected losses relating to workers’ compensation, general liability and automobile liability. Generally, deductibles range from $1 million to $5 million per occurrence depending on the coverage and whether a claim occurs outside or inside of the United States. Insurance is purchased over deductibles to reduce our exposure to catastrophic events. Estimates are recorded for incurred outstanding liabilities for workers’ compensation, general liability claims and claims that are incurred but not reported. Estimates are based on adjusters’ estimates, historical experience and statistical methods commonly used within the insurance industry that we believe are reliable. We have also engaged a third-party actuary to perform a review of our domestic casualty losses. Nonetheless, insurance estimates include certain assumptions and management judgments regarding the frequency and severity of claims, claim development and settlement practices. Unanticipated changes in these factors may produce materially different amounts of expense that would be reported under these programs. International Land Drilling Operations International Land drilling operations may significantly contribute to our revenues and net operating income. There can be no assurance that we will be able to successfully conduct such operations, and a failure to do so may have an adverse effect on our financial position, results of operations, and cash flows. Also, the success of our international land operations will be subject to numerous contingencies, some of which are beyond management’s control. These contingencies include general and regional economic conditions, fluctuations in currency exchange rates, modified exchange controls, changes in international regulatory requirements and international employment issues, risk of expropriation of real and personal property and the burden of complying with foreign laws. Additionally, in the event that extended labor strikes occur or a country experiences significant political, economic or social instability, we could experience shortages in labor and/or material and supplies necessary to operate some of our drilling rigs, thereby potentially causing an adverse material effect on our business, financial condition and results of operations. In Argentina, while our dayrate is denominated in U.S. dollars, we are paid in Argentine pesos. The Argentine branch of one of our second-tier subsidiaries remits U.S. dollars to its U.S. parent by converting the Argentine pesos into U.S. dollars through the Argentine Foreign Exchange Market and repatriating the U.S. dollars. Argentina also has a history of implementing currency controls, which restrict the conversion and repatriation of U.S. dollars, including controls which were implemented in September 2019 and are presently in effect. As a result of these currency controls, our ability to remit funds from our Argentine subsidiary to its U.S. parent has been limited. Furthermore, the Argentine government has also instituted price controls on crude oil, diesel and gasoline prices and instituted an exchange rate freeze in connection with those prices. Argentina’s economy is considered highly inflationary, which is defined as cumulative inflation rates exceeding 100 percent in the most recent three-year period based on inflation data published by the respective governments. Nonetheless, all of our foreign subsidiaries use the U.S. dollar as the functional currency and local currency monetary assets and liabilities are remeasured into U.S. dollars with gains and losses resulting from foreign currency transactions included in current results of operations. Because of the impact of local laws, our future operations in certain areas may be conducted through entities in which local citizens own interests and through entities (including joint ventures) in which we hold only a minority interest or pursuant to arrangements under which we conduct operations under contract to local entities. While we believe that neither operating through such entities nor pursuant to such arrangements would have a material adverse effect on our operations or revenues, there can be no assurance that we will in all cases be able to structure or restructure our operations to conform to local law (or the administration thereof) on terms acceptable to us. Although we attempt to minimize the potential impact of such risks by operating in more than one geographical area, during the year ended September 30, 2019, approximately 7.6 percent of our operating revenues were generated from international locations in our contract drilling services business compared to 9.6 percent during the year ended September 30, 2018. During the year ended September 30, 2019, approximately 91.6 percent of operating revenues from international locations were from operations in South America compared to 96.0 percent during the year ended September 30, 2018. Substantially all of the South American operating revenues were from Argentina and Colombia. The future occurrence of one or more international events arising from the types of risks described above could have a material adverse impact on our business, financial condition and results of operations.

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