Helmerich & Payne (HP) 10-Q 4 May 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Mar. 31, 2018	Apr. 30, 2018
Document and Entity Information
Entity Registrant Name	Helmerich & Payne, Inc.
Entity Central Index Key	46,765
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Amendment Flag	false
Current Fiscal Year End Date	--09-30
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		108,881,688
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2

CONSOLIDATED CONDENSED BALANCE

CONSOLIDATED CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2018	Sep. 30, 2017
CURRENT ASSETS:
Cash and cash equivalents	$ 334,764	$ 521,375
Short-term investments	45,270	44,491
Accounts receivable, less reserve of $5,726 at March 31, 2018 and $5,721 at September 30, 2017	545,348	477,074
Inventories	143,177	137,204
Prepaid expenses and other	62,424	55,120
Current assets of discontinued operations		3
Total current assets	1,130,983	1,235,267
NONCURRENT ASSETS:
Investments	73,356	84,026
Net property, plant and equipment, at cost	4,898,525	5,001,051
Goodwill	69,496	51,705
Intangible assets, net of amortization	77,001	50,785
Other assets	12,431	17,154
Total noncurrent assets	5,130,809	5,204,721
TOTAL ASSETS	6,261,792	6,439,988
CURRENT LIABILITIES:
Accounts payable	123,012	135,628
Accrued liabilities	217,095	208,683
Current liabilities of discontinued operations	78	74
Total current liabilities	340,185	344,385
NONCURRENT LIABILITIES:
Long-term debt less unamortized discount and debt issuance costs	493,433	492,902
Deferred income taxes	816,669	1,332,689
Other	93,661	101,409
Noncurrent liabilities of discontinued operations	14,691	4,012
Total noncurrent liabilities	1,418,454	1,931,012
SHAREHOLDERS' EQUITY:
Common stock, $.10 par value, 160,000,000 shares authorized, 112,008,961 shares and 111,956,875 shares issued as of March 31, 2018 and September 30, 2017 respectively and 108,876,808 shares and 108,604,047 shares outstanding as of March 31, 2018 and September 30, 2017 respectively	11,201	11,196
Preferred stock, no par value, 1,000,000 shares authorized, no shares issued
Additional paid-in capital	487,135	487,248
Retained earnings	4,189,497	3,855,686
Accumulated other comprehensive income (loss)	(5,221)	2,300
Total shareholders' equity before treasury stock	4,682,612	4,356,430
Treasury stock, at cost	(179,459)	(191,839)
Total shareholders' equity	4,503,153	4,164,591
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 6,261,792	$ 6,439,988

CONSOLIDATED CONDENSED BALANCE3

CONSOLIDATED CONDENSED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2018	Sep. 30, 2017
CONSOLIDATED CONDENSED BALANCE SHEETS
Accounts receivable, reserve (in dollars)	$ 5,726	$ 5,721
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized	160,000,000	160,000,000
Common stock, shares issued	112,008,961	111,956,875
Common stock, shares outstanding	108,876,808	108,604,047
Preferred stock, no par value (in dollars per share)	$ 0	$ 0
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0

CONSOLIDATED CONDENSED STATEMEN

CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Operating revenues:
Drilling - U.S. Land	$ 482,729	$ 330,967	$ 944,369	$ 594,603
Drilling - Offshore	32,983	36,235	66,349	70,047
Drilling - International Land	52,459	34,757	115,673	102,788
Other	9,313	3,324	15,180	6,435
Total operating revenues	577,484	405,283	1,141,571	773,873
Operating costs and expenses:
Operating costs, excluding depreciation and amortization	385,556	296,829	758,639	544,508
Depreciation and amortization	145,675	152,777	288,942	286,624
Research and development	4,436	2,719	7,670	5,527
General and administrative	48,325	33,519	94,873	67,781
Income from asset sales	(5,255)	(14,889)	(10,820)	(15,731)
Total operating costs and expenses	578,737	470,955	1,139,304	888,709
Operating income (loss) from continuing operations	(1,253)	(65,672)	2,267	(114,836)
Other income (expense):
Interest and dividend income	1,847	1,338	3,571	2,328
Interest expense	(6,028)	(6,084)	(11,801)	(11,139)
Other	(121)	174	409	561
Total other income (expense)	(4,302)	(4,572)	(7,821)	(8,250)
Loss from continuing operations before income taxes	(5,555)	(70,244)	(5,554)	(123,086)
Income tax benefit	(3,922)	(21,771)	(504,563)	(40,059)
Income (loss) from continuing operations	(1,633)	(48,473)	499,009	(83,027)
Income (loss) from discontinued operations before income taxes	1,263	(94)	744	(518)
Income tax provision	11,509	251	11,526	336
Loss from discontinued operations	(10,246)	(345)	(10,782)	(854)
NET INCOME (LOSS)	$ (11,879)	$ (48,818)	$ 488,227	$ (83,881)
Basic earnings per common share:
Income (loss) from continuing operations (in dollars per share)	$ (0.03)	$ (0.45)	$ 4.55	$ (0.77)
Loss from discontinued operations (in dollars per share)	(0.09)		(0.10)	(0.01)
Net income (loss) (in dollars per share)	(0.12)	(0.45)	4.45	(0.78)
Diluted earnings per common share:
Income (loss) from continuing operations (in dollars per share)	(0.03)	(0.45)	4.53	(0.77)
Loss from discontinued operations (in dollars per share)	(0.09)		(0.10)	(0.01)
Net income (loss) (in dollars per share)	$ (0.12)	$ (0.45)	$ 4.43	$ (0.78)
Weighted average shares outstanding (in thousands):
Basic (in shares)	108,868	108,565	108,775	108,419
Diluted (in shares)	108,868	108,565	109,212	108,419
Dividends declared per common share (in dollars per share)	$ 0.70	$ 0.70	$ 1.4	$ 1.40

CONSOLIDATED CONDENSED STATEME5

CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income (loss)	$ (11,879)	$ (48,818)	$ 488,227	$ (83,881)
Other comprehensive income (loss), net of income taxes:
Unrealized appreciation (depreciation) on securities, net of income taxes of ($3.4) million and ($3.6) million at March 31, 2018 and ($6.6) million and $1.2 million at March 31, 2017 .2) million at March 31, 2017	(7,568)	(10,507)	(8,169)	1,905
Minimum pension liability adjustments, net of income taxes of $0.2 million and $0.3 million at March 31, 2018 and $0.2 million and $0.4 million at March 31, 2017	308	366	648	732
Other comprehensive income (loss)	(7,260)	(10,141)	(7,521)	2,637
Comprehensive income (loss)	$ (19,139)	$ (58,959)	$ 480,706	$ (81,244)

CONSOLIDATED CONDENSED STATEME6

CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Unrealized appreciation (depreciation) on securities, net of income taxes , income taxes	$ (3.4)	$ (6.6)	$ (3.6)	$ 1.2
Minimum pension liability adjustments, income taxes	$ 0.2	$ 0.2	$ 0.3	$ 0.4

CONSOLIDATED CONDENSED STATEME7

CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
OPERATING ACTIVITIES:
Net income (loss)	$ 488,227	$ (83,881)
Adjustment for loss from discontinued operations	10,782	854
Income (loss) from continuing operations	499,009	(83,027)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	288,942	286,624
Amortization of debt discount and debt issuance costs	531	525
Provision for bad debt	429	3,820
Stock-based compensation	15,546	12,479
Income from asset sales	(10,820)	(15,731)
Deferred income tax benefit	(506,373)	(34,038)
Other	5,701	32
Change in assets and liabilities:
Accounts receivable	(61,791)	30,278
Inventories	(5,973)	(7,273)
Prepaid expenses and other	(4,158)	17,830
Accounts payable	(13,119)	31,359
Accrued liabilities	8,418	(76,879)
Deferred income taxes	(5,980)	2,675
Other noncurrent liabilities	(13,272)	(18,316)
Net cash provided by operating activities from continuing operations	197,090	150,358
Net cash used in operating activities from discontinued operations	(96)	(80)
Net cash provided by operating activities	196,994	150,278
INVESTING ACTIVITIES:
Capital expenditures	(191,202)	(175,303)
Purchase of short-term investments	(36,784)	(37,899)
Payment for acquisition of business, net of cash acquired	(47,886)
Proceeds from sale of short-term investments	32,020	34,000
Proceeds from asset sales	17,826	13,459
Net cash used in investing activities	(226,026)	(165,743)
FINANCING ACTIVITIES:
Dividends paid	(153,433)	(152,617)
Proceeds from stock option exercises	1,645	10,372
Payments for employee taxes on net settlement of equity awards	(5,791)	(6,105)
Net cash used in financing activities	(157,579)	(148,350)
Net decrease in cash and cash equivalents	(186,611)	(163,815)
Cash and cash equivalents, beginning of period	521,375	905,561
Cash and cash equivalents, end of period	$ 334,764	$ 741,746

CONSOLIDATED CONDENSED STATEME8

CONSOLIDATED CONDENSED STATEMENT OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Total
Balance at beginning of period at Sep. 30, 2017	$ 11,196	$ 487,248	$ 3,855,686	$ 2,300	$ (191,839)	$ 4,164,591
Balance (in shares) at Sep. 30, 2017	111,957,000					111,956,875
Balance (in shares) at Sep. 30, 2017					3,353,000
Increase (Decrease) in Shareholders' Equity
Net income (loss)			488,227			$ 488,227
Other comprehensive income (loss)				(7,521)		(7,521)
Dividends declared			(153,861)			(153,861)
Exercise of stock options, net of shares withheld for employee taxes		(5,063)			$ 5,005	(58)
Exercise of stock options, net of tax withholding (in shares)	1,000				(90,000)
Stock issued for vested restricted stock, net of shares withheld for employee taxes	$ 5	(11,468)			$ 7,375	(4,088)
Stock issued for vested restricted stock, net of shares withheld for employee taxes (in shares)	51,000				(131,000)
Stock-based compensation		15,546				15,546
Balance at end of period at Mar. 31, 2018	$ 11,201	487,135	4,189,497	(5,221)	$ (179,459)	$ 4,503,153
Balance (in shares) at Mar. 31, 2018	112,009,000					112,008,961
Balance (in shares) at Mar. 31, 2018					3,132,000
Balance at beginning of period at Dec. 31, 2017				2,039
Increase (Decrease) in Shareholders' Equity
Net income (loss)						$ (11,879)
Other comprehensive income (loss)						$ (7,260)
Repurchase of common stock (in shares)						0
Balance at end of period at Mar. 31, 2018	$ 11,201	487,135	4,189,497	$ (5,221)	$ (179,459)	$ 4,503,153
Balance (in shares) at Mar. 31, 2018	112,009,000					112,008,961
Balance (in shares) at Mar. 31, 2018					3,132,000
Increase (Decrease) in Shareholders' Equity
Cumulative effect of adopting Accounting Standards Update 2016-09 | ASU 2016-09		$ 872	$ (555)			$ 317

CONSOLIDATED CONDENSED STATEME9

CONSOLIDATED CONDENSED STATEMENT OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	Mar. 07, 2018	Dec. 05, 2017	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
CONSOLIDATED CONDENSED STATEMENT OF SHAREHOLDERS' EQUITY
Dividends declared (in dollars per share)	$ 0.70	$ 0.70	$ 0.70	$ 0.70	$ 1.4	$ 1.40

Basis of Presentation

Basis of Presentation	6 Months Ended
	Mar. 31, 2018
Basis of Presentation
Basis of Presentation	HELMERICH & PAYNE, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED CONDENSED FINANCIAL STATEMENTS (Unaudited) 1. Basis of Presentation Unless the context otherwise requires, the use of the terms “the Company”, “we”, “us” and “our” in these Notes to Consolidated Condensed Financial Statements refers to Helmerich & Payne, Inc. and its consolidated subsidiaries. The accompanying unaudited Consolidated Condensed Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (the “Commission”) pertaining to interim financial information. Accordingly, these interim financial statements do not include all information or footnote disclosures required by GAAP for complete financial statements and, therefore, should be read in conjunction with the Consolidated Financial Statements and notes thereto in our 2017 Annual Report on Form 10-K and other current filings with the Commission. In the opinion of management, all adjustments, consisting of those of a normal recurring nature, necessary to present fairly the results of the periods presented have been included. The results of operations for the interim periods presented may not necessarily be indicative of the results to be expected for the full year. On October 1, 2017, we adopted Accounting Standards Update (“ASU”) No. 2016-09, Improvements to Employee Share-Based Payment Accounting , which changes certain aspects of accounting for share-based payments to employees. The standard requires that all excess tax benefits and deficiencies previously recorded as additional paid-in capital be prospectively recorded in income tax expense. The adoption of this ASU could cause volatility in the effective tax rate on a quarter by quarter basis due primarily to fluctuations in the Company's stock price and the timing of stock option exercises and vesting of restricted share grants. The standard requires excess tax benefits to be presented as an operating activity on the statement of cash flows rather than as a financing activity. Excess tax benefits and deficiencies are recorded within the provision for income taxes within the Consolidated Condensed Statements of Operations on a prospective basis as required by the standard; however, we elected to present changes to the statement of cash flows on a retrospective basis as allowed by the standard in order to maintain comparability between fiscal years. As such, prior period cash flows from operations for six months ended March 31, 2017 has been adjusted to reflect an increase of $3.9 million, with a corresponding decrease to cash flows used in financing activities, compared to amounts previously reported. The standard also requires taxes paid for employee withholdings to be presented as a financing activity on the statement of cash flows but this requirement had no impact on our total financing activities as this has been the practice historically. We also elected to account for forfeitures of awards as they occur, instead of estimating a forfeiture amount. We recorded a $0.3 million cumulative-effect adjustment to retained earnings for the differential between the amount of compensation cost previously recorded and the amount that would have been recorded without assuming forfeitures. In July 2015, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory . This update simplifies the subsequent measurement of inventory. It replaces the current lower of cost or market test with the lower of cost or net realizable value test. Net realizable value is defined as the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. We adopted ASU No. 2015-11 on October 1, 2017 with no impact on our consolidated financial statements. As more fully described in our 2017 Annual Report on Form 10-K, our contract drilling revenues are comprised of daywork drilling contracts for which the related revenues and expenses are recognized as services are performed. 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. During the three and six months ended March 31, 2018, early termination revenue was approximately $4.0 million and $8.3 million, respectively. We had $6.2 million and $19.7 million of early termination revenue for the three and six months ended March 31, 2017. Depreciation in the Consolidated Condensed Statements of Operations includes abandonments of $8.2 million and $15.5 million for the three and six months ended March 31, 2018 and $18.6 million and $19.4 million for the three and six months ended March 31, 2017. The functional currency for all our foreign operations is the U.S. dollar. Nonmonetary assets and liabilities are translated at historical rates and monetary assets and liabilities are translated at exchange rates in effect at the end of the period. Income statement accounts are translated at average rates for the period presented. Aggregate foreign currency gains and losses from remeasurement of foreign currency financial statements and foreign currency translations into U.S. dollars are included in direct operating costs and totaled gains of $0.2 million and losses of $1.4 million for the three and six months ended March 31, 2018. Included in direct operating costs is an aggregate foreign currency loss of $0.6 million and $2.0 million for the three and six months ended March 31, 2017. Goodwill represents the excess of cost over the net amounts assigned to assets acquired and liabilities assumed in business combinations. Goodwill is not amortized but is tested for potential impairment at the reporting unit level, at a minimum on an annual basis, or when indications of potential impairment exist. All of our goodwill is within our other non-reportable business segment. Intangible assets with indefinite lives are tested for impairment at least annually in the fourth fiscal quarter and if events occur or circumstances change that would indicate that the value of the assets may be impaired. Finite-lived intangible assets are amortized using the straight-line method over the period in which these assets contribute to our cash flows and are evaluated for impairment in accordance with our policies for valuation of long-lived assets. The following is a summary of our finite-lived and indefinite-lived intangible assets other than goodwill at March 31, 2018 and September 30, 2017: March 31, 2018 September 30, 2017 Gross Gross Carrying Accumulated Carrying Accumulated Amount Amortization Amount Amortization (in thousands) Finite-lived intangible asset: Developed technology $ 70,000 $ 3,256 $ 51,000 $ 1,134 Trade name 5,700 95 — — Customer relationships 4,000 267 — — $ 79,700 $ 3,618 $ 51,000 $ 1,134 Indefinite-lived intangible asset: Trademark $ 919 $ 919 Amortization expense was $1.7 million and $2.5 million for the three and six months ended March 31, 2018 and is estimated to be approximately $5.4 million for fiscal 2018. Estimated intangible amortization is estimated to be approximately $5.8 million for fiscal years 2019-2022 and approximately $5.1 million for fiscal 2023.

Business Combinations

Business Combinations	6 Months Ended
	Mar. 31, 2018
Business Combinations
Business Combinations	2. Business Combinations On December 8, 2017, we completed an acquisition (“MagVAR Acquisition”) of an unaffiliated company, Magnetic Variation Services, LLC (“MagVAR”), which is now a wholly owned subsidiary of the Company. The operations for MagVAR are included with all other non-reportable business segments. At the effective time of the MagVAR Acquisition, MagVAR shareholders received aggregate cash consideration of $47.9 million, net of customary closing adjustments, and certain management members received restricted stock awards covering 213,904 shares of Helmerich & Payne, Inc. common stock. The grant date fair value of the restricted stock will be amortized to expense over the three year vesting period. At closing, $6.0 million of the cash consideration was placed in escrow, to be released to the seller twelve months after the acquisition closing date. The amount placed in escrow is classified as restricted cash and is included in prepaid expenses and other in the Consolidated Condensed Balance Sheet at March 31, 2018. Transaction costs related to the MagVAR Acquisition incurred during the six months ended March 31, 2018 were approximately $1.2 million and are recorded in the Consolidated Condensed Statements of Operations within general and administrative expense. We recorded revenue of $3.9 million and a net loss of $1.1 million related to MagVAR during the six months ended March 31, 2018. Through comprehensive 3D geomagnetic reference modeling, MagVAR provides measurement while drilling (“MWD”) survey corrections by identifying and quantifying MWD tool measurement errors in real-time, greatly improving directional drilling performance and wellbore placement. MagVAR technology has been successfully deployed in both onshore and offshore fields in North America, South America, Europe, Africa, Australia and Asia. The MagVAR Acquisition has been accounted for as a business combination in accordance with Accounting Standards Codifiction (“ASC”) 805, Business Combinations , which requires the assets acquired and liabilities assumed to be recorded at their acquisition date fair values. The following table summarizes the purchase price and the fair values of assets acquired and liabilities assumed and separately identifiable intangible assets at the acquisition date (in thousands): Purchase Price Consideration given Cash consideration $ 48,485 Allocation of Purchase Price Fair value of assets acquired Current assets $ 2,286 Property, plant and equipment 13 Intangible assets 28,700 Goodwill 17,791 Total assets acquired $ 48,790 Fair value of liabilities assumed Current liabilities $ 305 Fair value of total assets and liabilities acquired $ 48,485 Intangible assets acquired consist of developed technology, a trade name and customer relationships. The intangible assets will be amortized under a straight-line method over their estimated useful lives ranging from 5 to 20 years. The methodologies used in valuing the intangible assets include the multi-period excess earnings method for developed technology, the with and without method for customer relationships and the relief-from-royalty method for the trade name. The excess of the purchase price over the total net identifiable assets has been recorded as goodwill. Factors comprising goodwill includes the synergies expected from the expanded service capabilities as well as the value of the assembled workforce. The goodwill is reported in the Other segment and will not be allocated to any other reporting unit. The goodwill is not subject to amortization, but will be evaluated at least annually for impairment, or more frequently if impairment indicators are present. The intangible assets and goodwill will be amortized straight line over 15 years for income tax purposes. The following unaudited pro forma combined financial information is provided for the six months ended March 31, 2018 and 2017, as though the MagVAR Acquisition had been completed as of October 1, 2016. These pro forma combined results of operations have been prepared by adjusting our historical results to include the historical results of MagVAR and reflect pro forma adjustments based on available information and certain assumptions that we believe are reasonable, including application of an appropriate income tax to MagVAR pre-tax loss. Additionally, pro forma earnings for the six months ended March 31, 2018 were adjusted to exclude $0.6 million of after-tax transaction costs. The unaudited pro forma combined financial information is provided for illustrative purposes only and is not necessarily indicative of the actual results that would have been achieved by the combined company for the periods presented or that may be achieved by the combined company in the future. Future results may vary significantly from the results reflected in this pro forma financial information. Pro Forma (unaudited) Six Months Ended March 31, 2018 2017 (in thousands) Revenues $ 1,145,258 $ 778,628 Net income (loss) $ 488,439 $ (83,287)

Discontinued Operations

Discontinued Operations	6 Months Ended
	Mar. 31, 2018
Discontinued Operations
Discontinued Operations	3. Discontinued Operations Current and noncurrent liabilities consist of municipal and income taxes payable and social obligations due within the country of Venezuela. Expenses incurred for in-country obligations are reported as discontinued operations.

Earnings per Share

Earnings per Share	6 Months Ended
	Mar. 31, 2018
Earnings per Share
Earnings per Share	4. Earnings per Share ASC 260, Earnings per Share , requires companies to treat unvested share-based payment awards that have non-forfeitable rights to dividends or dividend equivalents as a separate class of securities in calculating earnings per share. 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. As such, we are required to include these grants in the calculation of our basic earnings per share and calculate basic earnings per share using the two-class method. The two-class method of computing earnings per share is an earnings allocation formula that determines earnings per share for each class of common stock and participating security according to dividends declared (or accumulated) and participation rights in undistributed earnings. 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. Under the two-class method of calculating earnings per share, dividends paid and a portion of undistributed net income, but not losses, are allocated to unvested restricted stock grants that receive dividends, which are considered participating securities. The following table sets forth the computation of basic and diluted earnings per share: Three Months Ended Six Months Ended March 31, March 31, 2018 2017 2018 2017 (in thousands, except per share amounts) Numerator: Income (loss) from continuing operations $ (1,633) $ (48,473) $ 499,009 $ (83,027) Loss from discontinued operations (10,246) (345) (10,782) (854) Net income (loss) (11,879) (48,818) 488,227 (83,881) Adjustment for basic earnings per share Earnings allocated to unvested shareholders (717) (445) (4,106) (891) Numerator for basic earnings per share: From continuing operations (2,350) (48,918) 494,903 (83,918) From discontinued operations (10,246) (345) (10,782) (854) (12,596) (49,263) 484,121 (84,772) Adjustment for diluted earnings per share: Effect of reallocating undistributed earnings of unvested shareholders — — 11 — Numerator for diluted earnings per share: From continuing operations (2,350) (48,918) 494,914 (83,918) From discontinued operations (10,246) (345) (10,782) (854) $ (12,596) $ (49,263) $ 484,132 $ (84,772) Denominator: Denominator for basic earnings per share - weighted-average shares 108,868 108,565 108,775 108,419 Effect of dilutive shares from stock options and restricted stock — — 437 — Denominator for diluted earnings per share - adjusted weighted-average shares 108,868 108,565 109,212 108,419 Basic earnings per common share: Income (loss) from continuing operations $ (0.03) $ (0.45) $ 4.55 $ (0.77) Loss from discontinued operations (0.09) — (0.10) (0.01) Net income (loss) $ (0.12) $ (0.45) $ 4.45 $ (0.78) Diluted earnings per common share: Income (loss) from continuing operations $ (0.03) $ (0.45) $ 4.53 $ (0.77) Loss from discontinued operations (0.09) — (0.10) (0.01) Net income (loss) $ (0.12) $ (0.45) $ 4.43 $ (0.78) We had a net loss for the three months ended March 31, 2018 and three and six months ended March 31, 2017. Accordingly, our diluted earnings per share calculation for these periods were equivalent to our basic earnings per share calculation since diluted earnings per share excluded any assumed exercise of equity awards. These were excluded because they were deemed to be anti-dilutive, meaning their inclusion would have reduced the reported net loss per share in the applicable period. The following shares attributable to outstanding equity awards were excluded from the calculation of diluted earnings per share because their inclusion would have been anti-dilutive: Three Months Ended Six Months Ended March 31, March 31, 2018 2017 2018 2017 (in thousands, except per share amounts) Shares excluded from calculation of diluted earnings per share 1,613 566 1,676 566 Weighted-average price per share $ 68.69 $ 80.43 $ 68.12 $ 80.43

Financial Instruments and Fair

Financial Instruments and Fair Value Measurement	6 Months Ended
	Mar. 31, 2018
Financial Instruments and Fair Value Measurement
Financial Instruments and Fair Value Measurement	5. Financial Instruments and Fair Value Measurement The estimated fair value of our available-for-sale securities, reflected on our Consolidated Condensed Balance Sheets as Investments, is based on Level 1 inputs. The following is a summary of available-for-sale securities, which excludes assets held in a Non-qualified Supplemental Savings Plan: Gross Gross Estimated Unrealized Unrealized Fair Cost Gains Losses Value (in thousands) Equity Securities: March 31, 2018 $ 38,473 $ 26,572 $ (6,664) $ 58,381 September 30, 2017 $ 38,473 $ 31,700 $ — $ 70,173 On an ongoing basis we evaluate the marketable equity securities to determine if any decline in fair value below cost is other-than-temporary. If a decline in fair value below cost is determined to be other-than-temporary, an impairment charge is recorded and a new cost basis established. We review several factors to determine whether a loss is other-than-temporary. These factors include, but are not limited to, (i) the length of time a security is in an unrealized loss position, (ii) the extent to which fair value is less than cost, (iii) the financial condition and near-term prospects of the issuer and (iv) our intent and ability to hold the security for a period of time sufficient to allow for any anticipated recovery in fair value. When securities are sold, the cost of securities used in determining realized gains and losses is based on the average cost basis of the security sold. One of our securities declined to an unrealized loss position during the three months ended March 31, 2018. The security is in the international offshore drilling industry which is cyclical and only increased modestly in 2017 after several years of declines in the offshore drilling sector. Subsequent to March 31, 2018, the market price of the security increased to a value above cost. Considering the factors above including the limited time that the security was in an unrealized position and based on our ability and intent to hold these investments until the fair value recovers, impairment was not considered other-than-temporary at March 31, 2018. The assets held in the Non-qualified Supplemental Savings Plan are carried at fair value which totaled $15.0 million at March 31, 2018 and $13.9 million at September 30, 2017. The assets are comprised of mutual funds that are measured using Level 1 inputs. Short-term investments include securities classified as trading securities. Both realized and unrealized gains and losses on trading securities are included in other income (expense) in the Consolidated Condensed Statements of Operations. The securities are recorded at fair value. The majority of cash equivalents are invested in highly liquid money-market mutual funds invested primarily in direct or indirect obligations of the U.S. Government. The carrying amount of cash and cash equivalents approximates fair value due to the short maturity of those investments. Fair value is defined as the exchange price that would be received to sell an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. We use the fair value hierarchy established in ASC 820-10 to measure fair value to prioritize the inputs: · Level 1 — Quoted prices (unadjusted) in active markets for identical assets or liabilities that the reporting entity can access at the measurement date. · Level 2 — Observable inputs, other than quoted prices included in Level 1, such as quoted prices for similar assets or liabilities in active markets; quoted prices for similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. · Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs. At March 31, 2018, our financial instruments utilizing Level 1 inputs include cash equivalents, equity securities with active markets and money market funds that are classified as restricted assets. The current portion of restricted amounts are included in prepaid expenses and other, and the noncurrent portion are included in other assets. For these items, quoted current market prices are readily available. At March 31, 2018, Level 2 inputs include certificates of deposit, U.S. Agency issued debt securities, municipal bonds and corporate bonds measured using broker quotations that utilize observable market inputs. Our financial instruments measured using Level 3 inputs consist of potential earnout payments associated with the acquisition of MOTIVE Drilling Technologies, Inc. in fiscal 2017. The valuation techniques used for determining the fair value of the potential earnout payments use a Monte Carlo simulation which evaluates numerous potential earnings and pay out scenarios. The following table summarizes our assets and liabilities measured at fair value presented in our Consolidated Condensed Balance Sheet as of March 31, 2018: Fair Value (Level 1) (Level 2) (Level 3) (in thousands) Recurring fair value measurements: Short-term investments: Certificates of deposit $ 3,498 $ — $ 3,498 $ — Corporate and municipal debt securities 15,858 — 15,858 — U.S. government and federal agency securities 25,914 25,914 — — Total short-term investments 45,270 25,914 19,356 — Cash and cash equivalents 334,764 334,764 — — Investments 58,381 58,381 — — Other current assets 38,385 38,385 — — Other assets 6,905 6,905 — — Total assets measured at fair value $ 483,705 $ 464,349 $ 19,356 $ — Liabilities: Contingent earnout liability $ 15,702 $ — $ — $ 15,702 The following information presents the supplemental fair value information about long-term fixed-rate debt at March 31, 2018 and September 30, 2017: March 31, September 30, 2018 2017 (in millions) Carrying value of long-term fixed-rate debt $ 493.4 $ 492.9 Fair value of long-term fixed-rate debt $ 521.8 $ 529.0 The fair value for the $500 million fixed-rate debt was based on broker quotes at March 31, 2018. The notes are classified within Level 2 as they are not actively traded in markets.

Shareholders' Equity

Shareholders' Equity	6 Months Ended
	Mar. 31, 2018
Shareholders' Equity
Shareholders' Equity	6. Shareholders’ Equity The Company has authorization from the Board of Directors for the repurchase of up to four million shares per calendar year. The repurchases may be made using our cash and cash equivalents or other available sources. We had no purchases of common shares in either of the second quarters of fiscal 2018 or fiscal 2017. Components of accumulated other comprehensive income (loss) were as follows: March 31, September 30, 2018 2017 (in thousands) Pre-tax amounts: Unrealized appreciation on securities $ 19,908 $ 31,700 Unrealized actuarial loss (27,952) (28,873) $ (8,044) $ 2,827 After-tax amounts: Unrealized appreciation on securities $ 11,901 $ 20,070 Unrealized actuarial loss (17,122) (17,770) $ (5,221) $ 2,300 The following is a summary of the changes in accumulated other comprehensive income (loss), net of tax, by component for the three and six months ended March 31, 2018: Three Months Ended March 31, 2018 Unrealized Appreciation (Depreciation) on Defined Available-for-sale Benefit Securities Pension Plan Total (in thousands) Balance at January 1, 2018 $ 19,469 $ (17,430) $ 2,039 Other comprehensive loss before reclassifications (7,568) — (7,568) Amounts reclassified from accumulated other comprehensive income — 308 308 Net current-period other comprehensive income (loss) (7,568) 308 (7,260) Balance at March 31, 2018 $ 11,901 $ (17,122) $ (5,221) Six Months Ended March 31, 2018 Unrealized Appreciation (Depreciation) on Defined Available-for-sale Benefit Securities Pension Plan Total (in thousands) Balance at October 1, 2017 $ 20,070 $ (17,770) $ 2,300 Other comprehensive loss before reclassifications (8,169) — (8,169) Amounts reclassified from accumulated other comprehensive income — 648 648 Net current-period other comprehensive income (loss) (8,169) 648 (7,521) Balance at March 31, 2018 $ 11,901 $ (17,122) $ (5,221) The following provides detail about accumulated other comprehensive income (loss) components which were reclassified to the Condensed Consolidated Statements of Operations: Reclassified from Reclassified from Accumulated Other Accumulated Other Comprehensive Comprehensive Income (Loss) Income (Loss) Three Months Ended Six Months Ended Details About Accumulated Other March 31, March 31, Affected Line Item in the Comprehensive Income (Loss) Components 2018 2017 2018 2017 Consolidated Statements of Operations (in thousands) (in thousands) Amortization of net actuarial loss on defined benefit pension plan $ (460) $ (575) $ (921) $ (1,150) General and administrative 152 209 273 418 Income tax provision Total reclassifications for the period $ (308) $ (366) $ (648) $ (732) Net of tax

Cash Dividends

Cash Dividends	6 Months Ended
	Mar. 31, 2018
Cash Dividends
Cash Dividends	7. Cash Dividends The $0.70 per share cash dividend declared December 5, 2017, was paid March 1, 2018. On March 7, 2018, a cash dividend of $0.70 per share was declared for shareholders of record on May 18, 2018, payable June 1, 2018. The dividend payable is included in accounts payable in the Consolidated Condensed Balance Sheets.

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Mar. 31, 2018
Stock-Based Compensation
Stock-Based Compensation	8. Stock-Based Compensation On March 2, 2016, the Helmerich & Payne, Inc. 2016 Omnibus Incentive Plan (the “2016 Plan”) was approved by our stockholders. The 2016 Plan, among other things, authorizes the Human Resources Committee of the Board to grant non-qualified stock options and restricted stock awards to selected employees and to non-employee Directors. Restricted stock may be granted for no consideration other than prior and future services. The purchase price per share for stock options may not be less than market price of the underlying stock on the date of grant. Stock options expire 10 years after the grant date. Awards outstanding in the Helmerich & Payne, Inc. 2005 Long-Term Incentive Plan and the Helmerich & Payne, Inc. 2010 Long-Term Incentive Plan (collectively the "2010 Plan") remain subject to the terms and conditions of those plans. During the six months ended March 31, 2018, there were 667,032 non-qualified stock options and 405,086 shares of restricted stock awards granted under the 2016 Plan. An additional 213,904 of restricted stock grants were awarded outside of the 2016 Plan. A summary of compensation cost for stock-based payment arrangements recognized in general and administrative expense is as follows: Three Months Ended Six Months Ended March 31, March 31, 2018 2017 2018 2017 (in thousands) (in thousands) Compensation expense Stock options $ 2,109 $ 1,869 $ 4,072 $ 3,521 Restricted stock 6,350 4,709 11,474 8,958 $ 8,459 $ 6,578 $ 15,546 $ 12,479 STOCK OPTIONS The following summarizes the weighted-average assumptions utilized in determining the fair value of options granted during the six months ended March 31, 2018 and 2017: 2018 2017 Risk-free interest rate 2.2 % 2.0 % Expected stock volatility 36.1 % 39.4 % Dividend yield 4.8 % 3.4 % Expected term (in years) 6.0 5.5 Risk-Free Interest Rate. The risk-free interest rate is based on U.S. Treasury securities for the expected term of the option. Expected Volatility Rate. Expected volatility is based upon historical experience of the daily closing price of our stock over a period which approximates the expected term of the option. Expected Dividend Yield. The expected dividend yield is based on our current dividend yield. Expected Term. The expected term of the options granted represents the period of time that they are expected to be outstanding. We estimate the expected term of options granted based on historical experience with grants and exercises. A summary of stock option activity under all existing long-term incentive plans for the three and six months ended March 31, 2018 is presented in the following tables: Three Months Ended March 31, 2018 Weighted Average Weighted Remaining Aggregate Average Contractual Intrinsic Shares Exercise Term Value (in thousands) Price (in years) (in millions) Outstanding at January 1, 2018 3,755 $ 57.82 Granted 7 71.57 Exercised (41) 30.66 Outstanding at March 31, 2018 3,721 $ 58.15 6.24 $ 40.1 Vested and expected to vest at March 31, 2018 3,721 $ 58.15 6.24 $ 40.1 Exercisable at March 31, 2018 2,358 $ 55.64 4.75 $ 31.1 Six Months Ended March 31, 2018 Weighted Average Shares Exercise (in thousands) Price Outstanding at October 1, 2017 3,278 $ 56.41 Granted 667 58.66 Exercised (224) 34.27 Outstanding at March 31, 2018 3,721 $ 58.15 The weighted-average fair value of options granted in the first and second quarters of fiscal 2018 was $12.94 and $17.78, respectively. The total intrinsic value of options exercised during the three and six months ended March 31, 2018 was $1.6 million and $5.6 million, respectively. As of March 31, 2018, the unrecognized compensation cost related to stock options was $11.8 million which is expected to be recognized over a weighted-average period of 2.2 years. RESTRICTED STOCK Restricted stock awards consist of our common stock and are time-vested over three to six years. We recognize compensation expense on a straight-line basis over the vesting period. The fair value of restricted stock awards under the 2016 Plan is determined based on the closing price of our shares on the grant date. As of March 31, 2018, there was $47.8 million of total unrecognized compensation cost related to unvested restricted stock awards. That cost is expected to be recognized over a weighted-average period of 2.6 years. A summary of the status of our restricted stock awards under the 2010 Plan and the 2016 Plan as of March 31, 2018 and changes in restricted stock outstanding during the six months then ended is presented below: Six Months Ended March 31, 2018 Weighted Average Shares Grant Date Fair (in thousands) Value per Share Unvested at October 1, 2017 659 $ 70.76 Granted 619 59.43 Vested (1) (251) 71.63 Forfeited (4) 66.27 Unvested on March 31, 2018 1,023 $ 63.71 (1)

Debt

Debt	6 Months Ended
	Mar. 31, 2018
Debt
Debt	9. Debt At March 31, 2018 and September 30, 2017, we had the following unsecured long-term debt outstanding: Unamortized Discount and Principal Debt Issuance Costs March 31, September 30, March 31, September 30, 2018 2017 2018 2017 (in thousands) Unsecured senior notes issued March 19, 2015: Due March 19, 2025 $ 500,000 $ 500,000 $ (6,567) $ (7,098) 500,000 500,000 (6,567) (7,098) Less long-term debt due within one year — — — — Long-term debt $ 500,000 $ 500,000 $ (6,567) $ (7,098) On March 19, 2015, we issued $500 million of 4.65 percent 10-year unsecured senior notes. Interest is payable semi-annually on March 15 and September 15. The debt discount is being amortized to interest expense using the effective interest method. The debt issuance costs are amortized straight-line over the stated life of the obligation, which approximates the effective interest method. We have a $300 million unsecured revolving credit facility which will mature on July 13, 2021. The credit facility has $75 million available to use as letters of credit. The majority of any borrowings under the facility would accrue interest at a spread over the London Interbank Offered Rate (LIBOR). We also pay a commitment fee based on the unused balance of the facility. Borrowing spreads as well as commitment fees are determined according to a scale based on a ratio of our total debt to total capitalization. The spread over LIBOR ranges from 1.125 percent to 1.75 percent per annum and commitment fees range from .15 percent to .30 percent per annum. Based on our debt to total capitalization on March 31, 2018, the spread over LIBOR and commitment fees would be 1.125 percent and .15 percent, respectively. There is one financial covenant in the facility which requires us to maintain a funded leverage ratio (as defined) of less than 50 percent. The credit facility contains additional terms, conditions, restrictions and covenants that we believe are usual and customary in unsecured debt arrangements for companies of similar size and credit quality including a limitation that priority debt (as defined in the agreement) may not exceed 17.5% of the net worth of the Company. As of March 31, 2018, there were no borrowings, but there were three letters of credit outstanding in the amount of $39.3 million. At March 31, 2018, we had $260.7 million available to borrow under our $300 million unsecured credit facility. At March 31, 2018, we had a $12 million unsecured standalone line of credit facility, which is purposed for the issuance of bid and performance bonds, as needed, for international operations. The Company currently has three bonds issued under this line for a total value of $5.6 million. Two of the bonds are denominated in a foreign currency which rose in value against the dollar increasing the value at March 31, 2018 by approximately $0.1 million from the value reported at September 30, 2017. The applicable agreements for all unsecured debt contain additional terms, conditions and restrictions that we believe are usual and customary in unsecured debt arrangements for companies that are similar in size and credit quality. At March 31, 2018, we were in compliance with all debt covenants.

Income Taxes

Income Taxes	6 Months Ended
	Mar. 31, 2018
Income Taxes
Income Taxes	10. Income Taxes Our effective tax rate for the first six months of fiscal 2018 and 2017 was 9,084.7 percent and 32.5 percent, respectively. Our effective tax rate for the three months ended March 31, 2018 and 2017 was 70.6 percent and 31.0 percent, respectively. The effective tax rate for the six and three months ended March 31, 2018 was impacted by a discrete income tax adjustment related to the reduction of the federal statutory corporate income tax rate as part of the Tax Cuts and Job Act (the “Act”) which was enacted on December 22, 2017. The related discrete tax benefit recorded for the six and three months ended March 31, 2018 was $501.8 million and $1.4 million, respectively. In addition, effective tax rates differ from the U.S. federal statutory rate (24.5 percent for fiscal 2018 and 35.0 percent for fiscal 2017) due to non-deductible permanent items and state and foreign income taxes. At March 31, 2018, we have not completed our accounting for all of the tax effects of the Act and recorded an additional tax benefit of $1.4 million to the provisional tax benefit recorded under Staff Accounting Bulletin No. 118 at December 31, 2017. In addition, we have considered the impact of the statutory changes enacted by the Act, including those provisions effective for the fiscal 2018 tax year, in our estimated annual effective tax rate for fiscal 2018 and have recorded provisional amounts, based on reasonable estimates, in our income tax provision for the six and three months ended March 31, 2018. For the next 12 months, we cannot predict with certainty whether we will achieve ultimate resolution of any uncertain tax positions associated with our U.S. and international operations that could result in increases or decreases of our unrecognized tax benefits. However, we do not expect the increases or decreases to have a material effect on our results of continuing operations or financial position.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Mar. 31, 2018
Commitments and Contingencies
Commitments and Contingencies	11. Commitments and Contingencies Equipment, parts and supplies are ordered in advance to promote efficient construction and capital improvement progress. At March 31, 2018, we had purchase commitments for equipment, parts and supplies of approximately $70.3 million. We are contingently liable to sureties in respect of bonds issued by the sureties in connection with certain commitments entered into by us in the normal course of business. We have agreed to indemnify the sureties for any payments made by them in respect of such bonds. During the ordinary course of our business, contingencies arise resulting from an existing condition, situation or set of circumstances involving an uncertainty as to the realization of a possible gain contingency. We account for gain contingencies in accordance with the provisions of ASC 450, Contingencies , and, therefore, we do not record gain contingencies or recognize income until realized. The property and equipment of our Venezuelan subsidiary was seized by the Venezuelan government on June 30, 2010. Our wholly-owned subsidiaries, Helmerich & Payne International Drilling Co. (“HPIDC”) and Helmerich & Payne de Venezuela, C.A., filed a lawsuit in the United States District Court for the District of Columbia on September 23, 2011 against the Bolivarian Republic of Venezuela, Petroleos de Venezuela, S.A. and PDVSA Petroleo, S.A. Our subsidiaries seek damages for the taking of their Venezuelan drilling business in violation of international law and for breach of contract. While there exists the possibility of realizing a recovery, we are currently unable to determine the timing or amounts we may receive, if any, or the likelihood of recovery. No gain contingencies are recognized in our Consolidated Financial Statements. The Company and its subsidiaries are parties to various other pending legal actions arising in the ordinary course of our business. We maintain insurance against certain business risks subject to certain deductibles. Although no assurance can be given, we believe, based on our experiences to date and taking into account established reserves and insurance, that the ultimate resolution of such items will not have a material adverse impact on our financial condition, cash flows, or results of operations. When we determine a loss is probable of occurring and is reasonably estimable, we accrue an undiscounted liability for such contingencies based on our best estimate using information available at that time. If the estimated loss is a range of potential outcomes and there is no better estimate within the range, we accrue the amount at the low end of the range. We disclose contingencies where an adverse outcome may be material, or in the judgment of management, we conclude the matter should otherwise be disclosed. On November 8, 2013, the United States District Court for the Eastern District of Louisiana approved the previously disclosed October 30, 2013 plea agreement between our wholly owned subsidiary, HPIDC, and the United States Department of Justice, United States Attorney’s Office for the Eastern District of Louisiana (“DOJ”). The court’s approval of the plea agreement resolved the DOJ’s investigation into certain choke manifold testing irregularities that occurred in 2010 at one of HPIDC's offshore platform rigs in the Gulf of Mexico. We also engaged in discussions with the Inspector General’s office of the Department of Interior (“DOI”) regarding the same events that were the subject of the DOJ’s investigation. Although we do not presently anticipate any further action by the DOI in this matter, we can provide no assurance as to the timing or eventual outcome of the DOI’s consideration of the matter.

Segment Information

Segment Information	6 Months Ended
	Mar. 31, 2018
Segment Information
Segment Information	12. Segment Information We operate principally in the contract drilling industry. The contract drilling operations consist mainly of contracting Company-owned drilling equipment primarily to large oil and gas exploration companies. Our contract drilling business includes the following reportable operating segments: U.S. Land, Offshore and International Land. Each reportable operating segment is a strategic business unit that is managed separately. Our primary international areas of operation include Argentina, Bahrain, Colombia, U.A.E. and other South American and Middle Eastern countries. Other includes additional non-reportable operating segments. Revenues included in Other consist of rental income as well as technology services provided for the directional drilling process and MWD survey corrections. Consolidated revenues and expenses reflect the elimination of intercompany transactions. We evaluate segment performance based on income or loss from continuing operations (segment operating income) before income taxes which includes: · revenues from external and internal customers · direct operating costs · depreciation and · allocated general and administrative costs but excludes corporate costs for other depreciation, income from asset sales and other corporate income and expense. General and administrative costs are allocated to the segments based primarily on specific identification and, to the extent that such identification is not practical, on other methods which we believe to be a reasonable reflection of the utilization of services provided. Segment operating income for all segments is a non-GAAP financial measure of our performance, as it excludes certain general and administrative expenses, corporate depreciation, income from asset sales and other corporate income and expense. We consider segment operating income to be an important supplemental measure of operating performance by presenting trends in our core businesses. We use this measure to facilitate period-to-period comparisons in operating performance of our reportable segments in the aggregate by eliminating items that affect comparability between periods. We believe that segment operating income is useful to investors because it provides a means to evaluate the operating performance of the segments on an ongoing basis using criteria that are used by our internal decision makers. Additionally, it highlights operating trends and aids analytical comparisons. However, segment operating income has limitations and should not be used as an alternative to operating income or loss, a performance measure determined in accordance with GAAP, as it excludes certain costs that may affect our operating performance in future periods. Summarized financial information of our reportable segments for the three months ended March 31, 2018 and 2017 is shown in the following tables: Segment External Inter- Total Operating (in thousands) Sales Segment Sales Income (Loss) March 31, 2018 Contract Drilling U.S. Land $ 482,729 $ 35 $ 482,764 $ 27,075 Offshore 32,983 — 32,983 5,449 International Land 52,459 — 52,459 (695) 568,171 35 568,206 31,829 Other 9,313 252 9,565 (7,015) 577,484 287 577,771 24,814 Eliminations — (287) (287) — Total $ 577,484 $ — $ 577,484 $ 24,814 Segment External Inter- Total Operating (in thousands) Sales Segment Sales Income (Loss) March 31, 2017 Contract Drilling U.S. Land $ 330,967 $ — $ 330,967 $ (51,850) Offshore 36,235 — 36,235 5,912 International Land 34,757 — 34,757 (10,977) 401,959 — 401,959 (56,915) Other 3,324 208 3,532 (1,134) 405,283 208 405,491 (58,049) Eliminations — (208) (208) — Total $ 405,283 $ — $ 405,283 $ (58,049) Summarized financial information of our reportable segments for the six months ended March 31, 2018 and 2017 is shown in the following tables: Segment External Inter- Total Operating (in thousands) Sales Segment Sales Income (Loss) March 31, 2018 Contract Drilling U.S. Land $ 944,369 $ 35 $ 944,404 $ 51,820 Offshore 66,349 — 66,349 14,174 International Land 115,673 — 115,673 2,839 1,126,391 35 1,126,426 68,833 Other 15,180 472 15,652 (14,332) 1,141,571 507 1,142,078 54,501 Eliminations — (507) (507) — Total $ 1,141,571 $ — $ 1,141,571 $ 54,501 Segment External Inter- Total Operating (in thousands) Sales Segment Sales Income (Loss) March 31, 2017 Contract Drilling U.S. Land $ 594,603 $ — $ 594,603 $ (82,738) Offshore 70,047 — 70,047 12,696 International Land 102,788 — 102,788 (10,152) 767,438 — 767,438 (80,194) Other 6,435 416 6,851 (3,183) 773,873 416 774,289 (83,377) Eliminations — (416) (416) — Total $ 773,873 $ — $ 773,873 $ (83,377) The following table reconciles segment operating income (loss) per the table above to income (loss) from continuing operations before income taxes as reported on the Consolidated Condensed Statements of Operations: Three Months Ended Six Months Ended March 31, March 31, 2018 2017 2018 2017 (in thousands) (in thousands) Segment operating income (loss) $ 24,814 $ (58,049) $ 54,501 $ (83,377) Income from asset sales 5,255 14,889 10,820 15,731 Corporate general and administrative costs and corporate depreciation (31,322) (22,512) (63,054) (47,190) Operating income (loss) (1,253) (65,672) 2,267 (114,836) Other income (expense) Interest and dividend income 1,847 1,338 3,571 2,328 Interest expense (6,028) (6,084) (11,801) (11,139) Other (121) 174 409 561 Total unallocated amounts (4,302) (4,572) (7,821) (8,250) Loss from continuing operations before income taxes $ (5,555) $ (70,244) $ (5,554) $ (123,086) The following table presents total assets by reportable segment: March 31, September 30, 2018 2017 (in thousands) Total assets U.S. Land $ 4,940,149 $ 4,967,074 Offshore 101,350 99,533 International Land 399,898 413,392 Other 182,003 133,085 5,623,400 5,613,084 Investments and corporate operations 638,392 826,901 Total assets from continued operations 6,261,792 6,439,985 Discontinued operations 3 $ 6,261,792 $ 6,439,988 The following table presents revenues from external customers by country based on the location of service provided: Three Months Ended Six Months Ended March 31, March 31, 2018 2017 2018 2017 (in thousands) (in thousands) Operating Revenues United States $ 524,435 $ 370,526 $ 1,025,193 $ 671,085 Argentina 49,800 23,267 98,629 71,349 Colombia 237 8,852 12,233 18,223 Other Foreign 3,012 2,638 5,516 13,216 Total $ 577,484 $ 405,283 $ 1,141,571 $ 773,873

Pensions and Other Post-retirem

Pensions and Other Post-retirement Benefits	6 Months Ended
	Mar. 31, 2018
Pensions and Other Post-retirement Benefits
Pensions and Other Post-retirement Benefits	13. Pensions and Other Post-retirement Benefits The following provides information at March 31, 2018 related to the Company-sponsored domestic defined benefit pension plan: Components of Net Periodic Benefit Cost Three Months Ended Six Months Ended March 31, March 31, 2018 2017 2018 2017 (in thousands) (in thousands) Interest cost $ 1,014 $ 975 $ 2,028 $ 1,950 Expected return on plan assets (1,386) (1,299) (2,772) (2,598) Recognized net actuarial loss 460 575 921 1,150 Net pension expense $ 88 $ 251 $ 177 $ 502 Employer Contributions We did not contribute to the Pension Plan during the six months ended March 31, 2018. We could make contributions for the remainder of fiscal 2018 to fund distributions in lieu of liquidating assets.

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	6 Months Ended
	Mar. 31, 2018
Supplemental Cash Flow Information
Supplemental Cash Flow Information	14. Capital expenditures on the Consolidated Condensed Statements of Cash Flows do not include additions which have been incurred but not paid for as of the end of the period. The following table reconciles total capital expenditures incurred to total capital expenditures in the Consolidated Condensed Statements of Cash Flows: Six Months Ended March 31, 2018 2017 (in thousands) Capital expenditures incurred $ 190,965 $ 191,804 Additions incurred in prior year but paid for in current year 20,004 9,465 Additions incurred but not paid for as of the end of the period (19,767) (25,966) Capital expenditures per Consolidated Statements of Cash Flows $ 191,202 $ 175,303

International Risk Factors

International Risk Factors	6 Months Ended
	Mar. 31, 2018
International Risk Factors
International Risk Factors	15. International Risk Factors We currently have foreign operations in South America and the Middle East. In the future, we may further expand the geographic reach of our operations. As a result, we are exposed to certain political, economic and other uncertainties not encountered in U.S. operations, including increased risks of social unrest, strikes, terrorism, war, kidnapping of employees, nationalization, forced negotiation or modification of contracts, difficulty resolving disputes and enforcing contract provisions, expropriation of equipment as well as expropriation of oil and gas exploration and drilling rights, taxation policies, foreign exchange restrictions and restrictions on repatriation of income and capital, currency rate fluctuations, increased governmental ownership and regulation of the economy and industry in the markets in which we operate, economic and financial instability of national oil companies, and restrictive governmental regulation, bureaucratic delays and general hazards associated with foreign sovereignty over certain areas in which operations are conducted. South American countries, in particular, have historically experienced uneven periods of economic growth, as well as recession, periods of high inflation and general economic and political instability. From time to time these risks have impacted our business. For example, on June 30, 2010, the Venezuelan government expropriated 11 rigs and associated real and personal property owned by our Venezuelan subsidiary. Prior thereto, we also experienced currency devaluation losses in Venezuela and difficulty repatriating U.S. dollars to the United States. Today, our contracts for work in foreign countries generally provide for payment in U.S. dollars. However, in Argentina we are paid in Argentine pesos. The Argentine branch of one of our second-tier subsidiaries then 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. We are not operating in any country that is currently 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. However, estimates from other published sources may indicate that Argentina is a highly inflationary country. Nonetheless, all of our foreign operations 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. In December 2015, the Argentine peso experienced a sharp devaluation resulting in an aggregate foreign currency loss of $8.5 million for the three months ended December 31, 2015. Subsequent to the devaluation, the Argentine peso stabilized and the Argentine Foreign Exchange Market controls now place fewer restrictions on repatriating U.S. dollars. These changes have reduced our current foreign currency exchange rate risk in Argentina. For the six months ended March 31, 2018 and 2017, we experienced aggregate foreign currency losses of $1.4 million and $2.0 million, respectively. However, in the future, we may incur larger currency devaluations, foreign exchange restrictions or other difficulties repatriating U.S. dollars from Argentina or elsewhere which could have a material adverse impact on our business, financial condition and 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 six months ended March 31, 2018, approximately 10.1 percent of our consolidated operating revenues were generated from international locations in our contract drilling business. During the six months ended March 31, 2018, approximately 95.8 percent of operating revenues from international locations were from operations in South America. 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.

Recently Issued Accounting Stan

Recently Issued Accounting Standards	6 Months Ended
	Mar. 31, 2018
Recently Issued Accounting Standards
Recently Issued Accounting Standards	16. Recently Issued Accounting Standards In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers , which supersedes virtually all existing revenue recognition requirements. Subsequent to the issuance of Update 2014-09, the FASB has issued several additional ASUs to clarify implementation guidance, provide narrow-scope improvements and provide additional disclosure guidance. ASU 2014-09 outlines a single comprehensive model for revenue recognition based on the core principle that a company will recognize revenue when promised goods or services are transferred to clients, in an amount that reflects the consideration to which an entity expects to be entitled in exchange for those goods or services. The ASU provides for either a full retrospective method, meaning the standard is applied to all of the periods presented, or a modified retrospective method, meaning the cumulative effect of initially applying the standard is recognized in the most current period presented in the financial statements. The requirements in this ASU are effective for annual periods beginning after December 15, 2017, and interim periods within that reporting period. In fiscal 2017, we established an implementation team and performed an initial assessment of the impact of ASU 2014-09 with the assistance of an outside consultant. The Company has identified and reviewed revenue streams and identified a subset of contracts to represent these revenue streams. The Company is in the process of performing a detailed analysis of such contracts. As part of the analysis, we will identify specific areas impacted under the new standard. In addition, we are in the process of implementing the appropriate changes to our business processes, systems and controls to support recognition and disclosure under the new standard. Our findings and progress toward implementation of the standard are periodically reported to management and the Audit Committee. Currently, we do not expect the impact of adopting ASU 2014-09 to be material on our consolidated balance sheet, results of operations and cash flows, though we anticipate that it may affect the timing for the recognition of certain types of revenues derived from drilling contracts, and the timing for recognizing certain costs that are incurred to fulfill those contracts. We will adopt this standard on October 1, 2018 and, based on our evaluation to date, we anticipate using the modified retrospective method; however, we are still in the process of finalizing our documentation and assessment of the impact of the standard on our financial results and related disclosures. We anticipate additional disclosures in future filings related to our planned adoption of this standard. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), to increase transparency and comparability among organizations by recognizing right-of-use assets and lease payment liabilities on the balance sheet and disclosing key information about leasing arrangements. Under ASU 2016-02, a determination is to be made at the inception of a contract as to whether the contract is, or contains, a lease. Leases convey the right to control the use of an identified asset in exchange for consideration. Only the lease components of a contract must be accounted for in accordance with this ASU. Non-lease components, such as activities that transfer a good or service to the customer, shall be accounted for under other applicable Topics. ASU 2016-02 permits lessees to make policy elections to not recognize lease assets and liabilities for leases with terms of less than twelve months and/or to not separate lease and non-lease components and account for the non-lease components together with the lease components as a single lease component. Lessor accounting remains substantially similar to current GAAP. This guidance is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. As a lessor, we expect the adoption of this new standard will apply to our drilling contracts. As a lessee, this standard will primarily impact us in situations where we lease real estate and equipment, for which we will recognize a right-of-use asset and a corresponding lease liability on our consolidated balance sheet. Since a portion of our contract drilling revenue will be subject to the new leasing guidance, we will evaluate the impact of ASU 2016-02 concurrently with the provisions of ASU 2014-09 and the impact this will have on our consolidated financial statements. We are in the process of implementing changes to our business processes, systems and controls to support recognition and disclosure under the new standard including the implementation of a lease accounting software to control the lease data. We have performed a scoping and preliminary assessment of the impact of this new standard. Our findings and progress toward implementation of the standard are periodically reported to management. In January 2018, the FASB issued a proposed ASU affecting the amendments in ASU No. 2016-02 providing entities with an additional (and optional) transition method of adoption resulting in a cumulative effect adjustment upon adoption. Based on our evaluation to date, the Company expects to adopt the new lease guidance utilizing the new proposed transition method of adoption as included in the proposed ASU, if codified. In addition, the Company expects to apply certain transition practical expedients allowed by the standard; however, we are still in the process of finalizing our documentation and assessment of the impact of the standard on our financial results and related disclosures. We anticipate additional disclosures in future filings related to our planned adoption of this standard. Our findings and progress toward implementation of the standard are periodically reported to management and the Audit Committee. The Company previously disclosed its intention to adopt this standard at the same time as it adopted the new revenue standard discussed above; however, we now expect to adopt this new guidance October 1, 2019. In January 2016, the FASB issued 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. The provisions of ASU No. 2016-01 are effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. At adoption, a cumulative-effect adjustment to beginning retained earnings will be recorded. We will adopt this standard on October 1, 2018. Subsequent to adoption, changes in the fair value of our available-for-sale investments will be recognized in net income and the effect will be subject to stock market fluctuations. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments—Credit Losses . The ASU sets forth a "current expected credit loss" (CECL) model which requires companies to measure all expected credit losses for financial instruments held at the reporting date based on historical experience, current conditions and reasonable supportable forecasts. This replaces the existing incurred loss model and is applicable to the measurement of credit losses on financial assets measured at amortized cost and applies to some off-balance sheet credit exposures. The ASU is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. We are currently assessing the impact this standard will have on our consolidated financial statements and disclosures. In August 2016, the FASB issued ASU No. 2016-15, Classification of Certain Cash Receipts and Cash Payments (a consensus of the Emerging Issues Task Force). The ASU is 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. The ASU is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. We are currently assessing the impact this standard will have on our consolidated statement of cash flows. In October 2016, the FASB issued ASU No. Income Taxes: Intra-Entity Transfers of Assets Other Than Inventory , as part of its simplification initiatives. The update requires that an entity recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs, rather than deferring the recognition until the asset has been sold to an outside party as is required under current GAAP. The ASU is effective for annual reporting periods beginning after December 15, 2017, and interim reporting periods within those annual reporting periods. Early adoption is permitted. The new standard will require adoption on a modified retrospective basis through a cumulative-effect adjustment to retained earnings. We expect to adopt the guidance beginning October 1, 2018 and are currently evaluating the impact this update will have on the financial statements and related disclosures. In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows - 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 amounts for the periods shown on the statement of cash flows. The ASU is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption during an interim period. We will adopt the guidance beginning October 1, 2018 applied retrospectively to all periods presented. The adoption is not expected to have a material impact on our consolidated financial position or cash flows. In March 2017, the FASB issued ASU No. 2017-07, Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost . ASU No. 2017-07 will change how employers that sponsor defined benefit pension and/or other post-retirement benefit plans present the net periodic benefit cost in the income statement. Employers will 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 will 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. This standard is effective for annual periods beginning after December 15, 2017, including interim periods within those annual periods. Early adoption is permitted. We do not expect the new guidance to have a material impact on our financial condition or results of operation. In February 2018, the FASB issued ASU No. Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income . This update relates to the impacts of the tax legislation commonly referred to as the Tax Cuts and Jobs Act. The guidance permits the reclassification of certain income tax effects of the Act from Other Comprehensive Income to Retained Earnings (stranded tax effects). The guidance also requires certain new disclosures. The guidance is effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. 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 Act related to the items remaining in Other Comprehensive Income are recognized or at the beginning of the period of adoption. We are currently evaluating the impact that the guidance may have on our consolidated financial statements.

Guarantor and Non-Guarantor Fin

Guarantor and Non-Guarantor Financial Information	6 Months Ended
	Mar. 31, 2018
Guarantor and Non-Guarantor Financial Information
Guarantor and Non-Guarantor Financial Information	17. In March 2015, Helmerich & Payne International Drilling Co. (“the issuer”), a 100 percent owned subsidiary of Helmerich & Payne, Inc. (“parent”, “the guarantor”), issued senior unsecured notes with an aggregate principal amount of $500.0 million. The notes are fully and unconditionally guaranteed by the parent. No subsidiaries of parent currently guarantee the notes, subject to certain provisions that if any subsidiary guarantees certain other debt of the issuer or parent, then such subsidiary will provide a guarantee of the obligations under the notes. In connection with the notes, we are providing the following condensed consolidating financial information in accordance with the Securities and Exchange Commission disclosure requirements. Each entity in the consolidating financial information follows the same accounting policies as described in the consolidated financial statements. Condensed consolidating financial information for the issuer, Helmerich & Payne International Drilling Co., and parent, guarantor, Helmerich & Payne, Inc. is shown in the tables below. CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (in thousands) Three Months Ended March 31, 2018 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Operating revenue $ — $ 515,712 $ 61,793 $ (21) $ 577,484 Operating costs and other 4,209 503,173 71,601 (246) 578,737 Operating income (loss) from continuing operations (4,209) 12,539 (9,808) 225 (1,253) Other income, net 19 1,732 200 (225) 1,726 Interest expense (138) (4,551) (1,339) — (6,028) Equity in net income of subsidiaries (7,963) (16,081) — 24,044 — Loss from continuing operations before income taxes (12,291) (6,361) (10,947) 24,044 (5,555) Income tax expense (benefit) (411) 1,639 (5,150) — (3,922) Loss from continuing operations (11,880) (8,000) (5,797) 24,044 (1,633) Income from discontinued operations before income taxes — — 1,263 — 1,263 Income tax provision — — 11,509 — 11,509 Loss from discontinued operations — — (10,246) — (10,246) Net loss $ (11,880) $ (8,000) $ (16,043) $ 24,044 $ (11,879) CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (in thousands) Three Months Ended March 31, 2018 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Net loss $ (11,880) $ (8,000) $ (16,043) $ 24,044 $ (11,879) Other comprehensive income (loss), net of income taxes: Unrealized depreciation on securities, net — (7,568) — — (7,568) Minimum pension liability adjustments, net 92 216 — — 308 Other comprehensive income (loss) 92 (7,352) — — (7,260) Comprehensive loss $ (11,788) $ (15,352) $ (16,043) $ 24,044 $ (19,139) CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (in thousands) Three Months Ended March 31, 2017 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Operating revenue $ — $ 367,202 $ 38,097 $ (16) $ 405,283 Operating costs and expenses 3,300 415,544 52,341 (230) 470,955 Operating loss from continuing operations (3,300) (48,342) (14,244) 214 (65,672) Other income (expense), net 1 1,814 (89) (214) 1,512 Interest expense (87) (5,148) (849) — (6,084) Equity in net loss of subsidiaries (46,677) (11,118) — 57,795 — Loss from continuing operations before income taxes (50,063) (62,794) (15,182) 57,795 (70,244) Income tax benefit (1,245) (17,410) (3,116) — (21,771) Loss from continuing operations (48,818) (45,384) (12,066) 57,795 (48,473) Loss from discontinued operations before income taxes — — (94) — (94) Income tax provision — — 251 — 251 Loss from discontinued operations — — (345) — (345) Net loss $ (48,818) $ (45,384) $ (12,411) $ 57,795 $ (48,818) CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (in thousands) Three Months Ended March 31, 2017 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Net loss $ (48,818) $ (45,384) $ (12,411) $ 57,795 $ (48,818) Other comprehensive income (loss), net of income taxes: Unrealized depreciation on securities, net — (10,507) — — (10,507) Minimum pension liability adjustments, net 106 260 — — 366 Other comprehensive income (loss) 106 (10,247) — — (10,141) Comprehensive loss $ (48,712) $ (55,631) $ (12,411) $ 57,795 $ (58,959) CONSOLIDATED CONDENSED STATEMENTS OF INCOME (in thousands) Six Months Ended March 31, 2018 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Operating revenue $ — $ 1,010,718 $ 130,890 $ (37) $ 1,141,571 Operating costs and other 8,387 984,821 146,547 (451) 1,139,304 Operating income (loss) from continuing operations (8,387) 25,897 (15,657) 414 2,267 Other income, net 280 3,373 741 (414) 3,980 Interest expense (166) (10,251) (1,384) — (11,801) Equity in net income of subsidiaries 499,457 5,284 — (504,741) — Income (loss) from continuing operations before income taxes 491,184 24,303 (16,300) (504,741) (5,554) Income tax expense (benefit) 2,958 (476,955) (30,566) — (504,563) Income from continuing operations 488,226 501,258 14,266 (504,741) 499,009 Income from discontinued operations before income taxes — — 744 — 744 Income tax provision — — 11,526 — 11,526 Loss from discontinued operations — — (10,782) — (10,782) Net income $ 488,226 $ 501,258 $ 3,484 $ (504,741) $ 488,227 CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (in thousands) Six Months Ended March 31, 2018 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Net income $ 488,226 $ 501,258 $ 3,484 $ (504,741) $ 488,227 Other comprehensive income (loss), net of income taxes: Unrealized depreciation on securities, net — (8,169) — — (8,169) Minimum pension liability adjustments, net 194 454 — — 648 Other comprehensive income (loss) 194 (7,715) — — (7,521) Comprehensive income $ 488,420 $ 493,543 $ 3,484 $ (504,741) $ 480,706 CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (in thousands) Six Months Ended March 31, 2017 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Operating revenue $ — $ 664,650 $ 109,256 $ (33) $ 773,873 Operating costs and other 6,760 755,046 127,364 (461) 888,709 Operating loss from continuing operations (6,760) (90,396) (18,108) 428 (114,836) Other income, net 1 2,833 483 (428) 2,889 Interest expense (173) (9,857) (1,109) — (11,139) Equity in net loss of subsidiaries (79,669) (10,789) — 90,458 — Loss from continuing operations before income taxes (86,601) (108,209) (18,734) 90,458 (123,086) Income tax provision (2,720) (29,960) (7,379) — (40,059) Loss from continuing operations (83,881) (78,249) (11,355) 90,458 (83,027) Loss from discontinued operations before income taxes — — (518) — (518) Income tax provision — — 336 — 336 Loss from discontinued operations — — (854) — (854) Net loss $ (83,881) $ (78,249) $ (12,209) $ 90,458 $ (83,881) CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (in thousands) Six Months Ended March 31, 2017 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Net loss $ (83,881) $ (78,249) $ (12,209) $ 90,458 $ (83,881) Other comprehensive income, net of income taxes: Unrealized appreciation on securities, net — 1,905 — — 1,905 Minimum pension liability adjustments, net 212 520 — — 732 Other comprehensive income 212 2,425 — — 2,637 Comprehensive loss $ (83,669) $ (75,824) $ (12,209) $ 90,458 $ (81,244) CONSOLIDATED CONDENSED BALANCE SHEETS (in thousands) March 31, 2018 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated ASSETS Current assets: Cash and cash equivalents $ (787) $ 324,530 $ 11,021 $ — $ 334,764 Short-term investments — 45,270 — — 45,270 Accounts receivable, net of reserve 794 465,049 79,581 (76) 545,348 Inventories — 109,527 33,650 — 143,177 Prepaid expenses and other 22,718 4,484 35,285 (63) 62,424 Current assets of discontinued operations — — — — — Total current assets 22,725 948,860 159,537 (139) 1,130,983 Investments 14,976 58,380 — — 73,356 Property, plant and equipment, net 47,706 4,527,404 323,415 — 4,898,525 Intercompany 147,333 2,000,285 247,981 (2,395,599) — Goodwill — — 69,496 — 69,496 Intangible assets, net of amortization — — 77,001 — 77,001 Other assets 5,166 1,055 6,210 — 12,431 Investment in subsidiaries 5,961,792 188,761 — (6,150,553) — Total assets $ 6,199,698 $ 7,724,745 $ 883,640 $ (8,546,291) $ 6,261,792 LIABILITIES AND SHAREHOLDERS’ EQUITY Current liabilities: Accounts payable $ 80,251 $ 39,878 $ 2,951 $ (68) $ 123,012 Accrued liabilities 30,356 172,718 14,092 (71) 217,095 Current liabilities of discontinued operations — — 78 — 78 Total current liabilities 110,607 212,596 17,121 (139) 340,185 Noncurrent liabilities: Long-term debt — 493,433 — — 493,433 Deferred income taxes (7,011) 774,914 48,766 — 816,669 Intercompany 1,566,255 252,200 577,044 (2,395,499) — Other 26,694 42,574 24,393 — 93,661 Noncurrent liabilities of discontinued operations — — 14,691 — 14,691 Total noncurrent liabilities 1,585,938 1,563,121 664,894 (2,395,499) 1,418,454 Shareholders’ equity: Common stock 11,201 100 — (100) 11,201 Additional paid-in capital 487,135 52,436 1,040 (53,476) 487,135 Retained earnings 4,189,497 5,897,470 200,585 (6,098,055) 4,189,497 Accumulated other comprehensive income (5,221) (978) — 978 (5,221) Treasury stock, at cost (179,459) — — — (179,459) Total shareholders’ equity 4,503,153 5,949,028 201,625 (6,150,653) 4,503,153 Total liabilities and shareholders’ equity $ 6,199,698 $ 7,724,745 $ 883,640 $ (8,546,291) $ 6,261,792 CONSOLIDATED CONDENSED BALANCE SHEETS (in thousands) September 30, 2017 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated ASSETS Current assets: Cash and cash equivalents $ (587) $ 508,091 $ 13,871 $ — $ 521,375 Short-term investments — 44,491 — — 44,491 Accounts receivable, net of reserve 766 411,599 64,714 (5) 477,074 Inventories — 102,470 34,734 — 137,204 Prepaid expenses and other 12,200 6,383 36,979 (442) 55,120 Current assets of discontinued operations — — 3 — 3 Total current assets 12,379 1,073,034 150,301 (447) 1,235,267 Investments 13,853 70,173 — — 84,026 Property, plant and equipment, net 49,851 4,609,144 342,056 — 5,001,051 Intercompany 90,885 1,746,662 248,540 (2,086,087) — Goodwill — — 51,705 — 51,705 Intangible assets, net of amortization — — 50,785 — 50,785 Other assets 4,955 3,839 8,360 — 17,154 Investment in subsidiaries 5,470,050 183,382 — (5,653,432) — Total assets $ 5,641,973 $ 7,686,234 $ 851,747 $ (7,739,966) $ 6,439,988 LIABILITIES AND SHAREHOLDERS’ EQUITY Current liabilities: Accounts payable $ 82,360 $ 48,679 $ 4,589 $ — $ 135,628 Accrued liabilities 26,698 148,491 33,941 (447) 208,683 Current liabilities of discontinued operations — — 74 — 74 Total current liabilities 109,058 197,170 38,604 (447) 344,385 Noncurrent liabilities: Long-term debt — 492,902 — — 492,902 Deferred income taxes (11,201) 1,286,381 57,509 — 1,332,689 Intercompany 1,354,068 210,823 521,096 (2,085,987) — Other 25,457 43,471 32,481 — 101,409 Noncurrent liabilities of discontinued operations — — 4,012 — 4,012 Total noncurrent liabilities 1,368,324 2,033,577 615,098 (2,085,987) 1,931,012 Shareholders’ equity: Common stock 11,196 100 — (100) 11,196 Additional paid-in capital 487,248 52,437 1,039 (53,476) 487,248 Retained earnings 3,855,686 5,396,212 197,006 (5,593,218) 3,855,686 Accumulated other comprehensive income 2,300 6,738 — (6,738) 2,300 Treasury stock, at cost (191,839) — — — (191,839) Total shareholders’ equity 4,164,591 5,455,487 198,045 (5,653,532) 4,164,591 Total liabilities and shareholders’ equity $ 5,641,973 $ 7,686,234 $ 851,747 $ (7,739,966) $ 6,439,988 CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (in thousands) Six Months Ended March 31, 2018 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Net cash provided by operating activities $ 3,946 $ 192,093 $ 955 $ — $ 196,994 INVESTING ACTIVITIES: Capital expenditures (4,661) (181,218) (5,323) — (191,202) Purchase of short-term investments — (36,784) — — (36,784) Acquisition of business, net of cash acquired (47,886) — — — (47,886) Proceeds from sale of short-term investments — 32,020 — — 32,020 Intercompany transfers 52,547 (52,547) — — — Proceeds from asset sales — 16,308 1,518 — 17,826 Net cash used in investing activities — (222,221) (3,805) — (226,026) FINANCING ACTIVITIES: Intercompany transfers 153,433 (153,433) — — — Dividends paid (153,433) — — — (153,433) Proceeds from stock option exercises 1,645 — — — 1,645 Payments for employee taxes on net settlement of equity awards (5,791) — — — (5,791) Net cash used in financing activities (4,146) (153,433) — — (157,579) Net decrease in cash and cash equivalents (200) (183,561) (2,850) — (186,611) Cash and cash equivalents, beginning of period (587) 508,091 13,871 — 521,375 Cash and cash equivalents, end of period $ (787) $ 324,530 $ 11,021 $ — $ 334,764 CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (in thousands) Six Months Ended March 31, 2017, as adjusted Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Net cash provided by (used in) operating activities $ (5,993) $ 148,481 $ 7,790 $ — $ 150,278 INVESTING ACTIVITIES: Capital expenditures (1,343) (172,338) (1,622) — (175,303) Purchase of short-term investments — (37,899) — — (37,899) Proceeds from sale of short-term investments — 34,000 — — 34,000 Intercompany transfers 1,343 (1,343) — — — Proceeds from asset sales — 12,908 551 — 13,459 Net cash used in investing activities — (164,672) (1,071) — (165,743) FINANCING ACTIVITIES: Intercompany transfers 152,617 (152,617) — — — Dividends paid (152,617) — — — (152,617) Proceeds from stock option exercises 10,372 — — — 10,372 Payments for employee taxes on net settlement of equity awards (6,105) — — — (6,105) Net cash provided by (used in) financing activities 4,267 (152,617) — — (148,350) Net increase (decrease) in cash and cash equivalents (1,726) (168,808) 6,719 — (163,815) Cash and cash equivalents, beginning of period (955) 899,028 7,488 — 905,561 Cash and cash equivalents, end of period $ (2,681) $ 730,220 $ 14,207 $ — $ 741,746

Basis of Presentation (Tables)

Basis of Presentation (Tables)	6 Months Ended
	Mar. 31, 2018
Basis of Presentation
Schedule of finite-lived and indefinite-lived intangible assets other than goodwill	March 31, 2018 September 30, 2017 Gross Gross Carrying Accumulated Carrying Accumulated Amount Amortization Amount Amortization (in thousands) Finite-lived intangible asset: Developed technology $ 70,000 $ 3,256 $ 51,000 $ 1,134 Trade name 5,700 95 — — Customer relationships 4,000 267 — — $ 79,700 $ 3,618 $ 51,000 $ 1,134 Indefinite-lived intangible asset: Trademark $ 919 $ 919

Business Combinations (Tables)

Business Combinations (Tables)	6 Months Ended
	Mar. 31, 2018
Business Combinations
Summary of the purchase price and the allocation of the fair values of assets acquired and liabilities assumed	Purchase Price Consideration given Cash consideration $ 48,485 Allocation of Purchase Price Fair value of assets acquired Current assets $ 2,286 Property, plant and equipment 13 Intangible assets 28,700 Goodwill 17,791 Total assets acquired $ 48,790 Fair value of liabilities assumed Current liabilities $ 305 Fair value of total assets and liabilities acquired $ 48,485
Pro forma of financial information	Pro Forma (unaudited) Six Months Ended March 31, 2018 2017 (in thousands) Revenues $ 1,145,258 $ 778,628 Net income (loss) $ 488,439 $ (83,287)

Earnings per Share (Tables)

Earnings per Share (Tables)	6 Months Ended
	Mar. 31, 2018
Earnings per Share
Schedule of computation of basic and diluted earnings per share	Three Months Ended Six Months Ended March 31, March 31, 2018 2017 2018 2017 (in thousands, except per share amounts) Numerator: Income (loss) from continuing operations $ (1,633) $ (48,473) $ 499,009 $ (83,027) Loss from discontinued operations (10,246) (345) (10,782) (854) Net income (loss) (11,879) (48,818) 488,227 (83,881) Adjustment for basic earnings per share Earnings allocated to unvested shareholders (717) (445) (4,106) (891) Numerator for basic earnings per share: From continuing operations (2,350) (48,918) 494,903 (83,918) From discontinued operations (10,246) (345) (10,782) (854) (12,596) (49,263) 484,121 (84,772) Adjustment for diluted earnings per share: Effect of reallocating undistributed earnings of unvested shareholders — — 11 — Numerator for diluted earnings per share: From continuing operations (2,350) (48,918) 494,914 (83,918) From discontinued operations (10,246) (345) (10,782) (854) $ (12,596) $ (49,263) $ 484,132 $ (84,772) Denominator: Denominator for basic earnings per share - weighted-average shares 108,868 108,565 108,775 108,419 Effect of dilutive shares from stock options and restricted stock — — 437 — Denominator for diluted earnings per share - adjusted weighted-average shares 108,868 108,565 109,212 108,419 Basic earnings per common share: Income (loss) from continuing operations $ (0.03) $ (0.45) $ 4.55 $ (0.77) Loss from discontinued operations (0.09) — (0.10) (0.01) Net income (loss) $ (0.12) $ (0.45) $ 4.45 $ (0.78) Diluted earnings per common share: Income (loss) from continuing operations $ (0.03) $ (0.45) $ 4.53 $ (0.77) Loss from discontinued operations (0.09) — (0.10) (0.01) Net income (loss) $ (0.12) $ (0.45) $ 4.43 $ (0.78)
Schedule of shares attributable to outstanding equity awards excluded from the calculation of diluted earnings per share	Three Months Ended Six Months Ended March 31, March 31, 2018 2017 2018 2017 (in thousands, except per share amounts) Shares excluded from calculation of diluted earnings per share 1,613 566 1,676 566 Weighted-average price per share $ 68.69 $ 80.43 $ 68.12 $ 80.43

Financial Instruments and Fai30

Financial Instruments and Fair Value Measurement (Tables)	6 Months Ended
	Mar. 31, 2018
Financial Instruments and Fair Value Measurement
Summary of available-for-sale securities	Gross Gross Estimated Unrealized Unrealized Fair Cost Gains Losses Value (in thousands) Equity Securities: March 31, 2018 $ 38,473 $ 26,572 $ (6,664) $ 58,381 September 30, 2017 $ 38,473 $ 31,700 $ — $ 70,173
Summary of assets and liabilities measured at fair value	The following table summarizes our assets and liabilities measured at fair value presented in our Consolidated Condensed Balance Sheet as of March 31, 2018: Fair Value (Level 1) (Level 2) (Level 3) (in thousands) Recurring fair value measurements: Short-term investments: Certificates of deposit $ 3,498 $ — $ 3,498 $ — Corporate and municipal debt securities 15,858 — 15,858 — U.S. government and federal agency securities 25,914 25,914 — — Total short-term investments 45,270 25,914 19,356 — Cash and cash equivalents 334,764 334,764 — — Investments 58,381 58,381 — — Other current assets 38,385 38,385 — — Other assets 6,905 6,905 — — Total assets measured at fair value $ 483,705 $ 464,349 $ 19,356 $ — Liabilities: Contingent earnout liability $ 15,702 $ — $ — $ 15,702
Summary of supplemental fair value information about long-term fixed-rate debt	March 31, September 30, 2018 2017 (in millions) Carrying value of long-term fixed-rate debt $ 493.4 $ 492.9 Fair value of long-term fixed-rate debt $ 521.8 $ 529.0

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	6 Months Ended
	Mar. 31, 2018
Shareholders' Equity
Schedule of components of accumulated other comprehensive income (loss)	March 31, September 30, 2018 2017 (in thousands) Pre-tax amounts: Unrealized appreciation on securities $ 19,908 $ 31,700 Unrealized actuarial loss (27,952) (28,873) $ (8,044) $ 2,827 After-tax amounts: Unrealized appreciation on securities $ 11,901 $ 20,070 Unrealized actuarial loss (17,122) (17,770) $ (5,221) $ 2,300
Summary of the changes in accumulated other comprehensive income (loss), net of tax, by component	Three Months Ended March 31, 2018 Unrealized Appreciation (Depreciation) on Defined Available-for-sale Benefit Securities Pension Plan Total (in thousands) Balance at January 1, 2018 $ 19,469 $ (17,430) $ 2,039 Other comprehensive loss before reclassifications (7,568) — (7,568) Amounts reclassified from accumulated other comprehensive income — 308 308 Net current-period other comprehensive income (loss) (7,568) 308 (7,260) Balance at March 31, 2018 $ 11,901 $ (17,122) $ (5,221) Six Months Ended March 31, 2018 Unrealized Appreciation (Depreciation) on Defined Available-for-sale Benefit Securities Pension Plan Total (in thousands) Balance at October 1, 2017 $ 20,070 $ (17,770) $ 2,300 Other comprehensive loss before reclassifications (8,169) — (8,169) Amounts reclassified from accumulated other comprehensive income — 648 648 Net current-period other comprehensive income (loss) (8,169) 648 (7,521) Balance at March 31, 2018 $ 11,901 $ (17,122) $ (5,221)
Schedule of accumulated other comprehensive income (loss) components which were reclassified to the Statement of Operations	Reclassified from Reclassified from Accumulated Other Accumulated Other Comprehensive Comprehensive Income (Loss) Income (Loss) Three Months Ended Six Months Ended Details About Accumulated Other March 31, March 31, Affected Line Item in the Comprehensive Income (Loss) Components 2018 2017 2018 2017 Consolidated Statements of Operations (in thousands) (in thousands) Amortization of net actuarial loss on defined benefit pension plan $ (460) $ (575) $ (921) $ (1,150) General and administrative 152 209 273 418 Income tax provision Total reclassifications for the period $ (308) $ (366) $ (648) $ (732) Net of tax

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Mar. 31, 2018
Stock-Based Compensation
Summary of compensation cost for stock-based payment arrangements recognized in general and administrative expense	Three Months Ended Six Months Ended March 31, March 31, 2018 2017 2018 2017 (in thousands) (in thousands) Compensation expense Stock options $ 2,109 $ 1,869 $ 4,072 $ 3,521 Restricted stock 6,350 4,709 11,474 8,958 $ 8,459 $ 6,578 $ 15,546 $ 12,479
Summary of weighted-average assumptions utilized in determining the fair value of options granted	2018 2017 Risk-free interest rate 2.2 % 2.0 % Expected stock volatility 36.1 % 39.4 % Dividend yield 4.8 % 3.4 % Expected term (in years) 6.0 5.5
Summary of stock option activity	Three Months Ended March 31, 2018 Weighted Average Weighted Remaining Aggregate Average Contractual Intrinsic Shares Exercise Term Value (in thousands) Price (in years) (in millions) Outstanding at January 1, 2018 3,755 $ 57.82 Granted 7 71.57 Exercised (41) 30.66 Outstanding at March 31, 2018 3,721 $ 58.15 6.24 $ 40.1 Vested and expected to vest at March 31, 2018 3,721 $ 58.15 6.24 $ 40.1 Exercisable at March 31, 2018 2,358 $ 55.64 4.75 $ 31.1 Six Months Ended March 31, 2018 Weighted Average Shares Exercise (in thousands) Price Outstanding at October 1, 2017 3,278 $ 56.41 Granted 667 58.66 Exercised (224) 34.27 Outstanding at March 31, 2018 3,721 $ 58.15
Summary of restricted stock awards and changes in restricted stock outstanding	Six Months Ended March 31, 2018 Weighted Average Shares Grant Date Fair (in thousands) Value per Share Unvested at October 1, 2017 659 $ 70.76 Granted 619 59.43 Vested (1) (251) 71.63 Forfeited (4) 66.27 Unvested on March 31, 2018 1,023 $ 63.71 (1)

Debt (Tables)

Debt (Tables)	6 Months Ended
	Mar. 31, 2018
Debt
Schedule of components of unsecured long-term debt outstanding	Unamortized Discount and Principal Debt Issuance Costs March 31, September 30, March 31, September 30, 2018 2017 2018 2017 (in thousands) Unsecured senior notes issued March 19, 2015: Due March 19, 2025 $ 500,000 $ 500,000 $ (6,567) $ (7,098) 500,000 500,000 (6,567) (7,098) Less long-term debt due within one year — — — — Long-term debt $ 500,000 $ 500,000 $ (6,567) $ (7,098)

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Mar. 31, 2018
Segment Information
Summary of financial information of the entity's reportable segments	Summarized financial information of our reportable segments for the three months ended March 31, 2018 and 2017 is shown in the following tables: Segment External Inter- Total Operating (in thousands) Sales Segment Sales Income (Loss) March 31, 2018 Contract Drilling U.S. Land $ 482,729 $ 35 $ 482,764 $ 27,075 Offshore 32,983 — 32,983 5,449 International Land 52,459 — 52,459 (695) 568,171 35 568,206 31,829 Other 9,313 252 9,565 (7,015) 577,484 287 577,771 24,814 Eliminations — (287) (287) — Total $ 577,484 $ — $ 577,484 $ 24,814 Segment External Inter- Total Operating (in thousands) Sales Segment Sales Income (Loss) March 31, 2017 Contract Drilling U.S. Land $ 330,967 $ — $ 330,967 $ (51,850) Offshore 36,235 — 36,235 5,912 International Land 34,757 — 34,757 (10,977) 401,959 — 401,959 (56,915) Other 3,324 208 3,532 (1,134) 405,283 208 405,491 (58,049) Eliminations — (208) (208) — Total $ 405,283 $ — $ 405,283 $ (58,049) Summarized financial information of our reportable segments for the six months ended March 31, 2018 and 2017 is shown in the following tables: Segment External Inter- Total Operating (in thousands) Sales Segment Sales Income (Loss) March 31, 2018 Contract Drilling U.S. Land $ 944,369 $ 35 $ 944,404 $ 51,820 Offshore 66,349 — 66,349 14,174 International Land 115,673 — 115,673 2,839 1,126,391 35 1,126,426 68,833 Other 15,180 472 15,652 (14,332) 1,141,571 507 1,142,078 54,501 Eliminations — (507) (507) — Total $ 1,141,571 $ — $ 1,141,571 $ 54,501 Segment External Inter- Total Operating (in thousands) Sales Segment Sales Income (Loss) March 31, 2017 Contract Drilling U.S. Land $ 594,603 $ — $ 594,603 $ (82,738) Offshore 70,047 — 70,047 12,696 International Land 102,788 — 102,788 (10,152) 767,438 — 767,438 (80,194) Other 6,435 416 6,851 (3,183) 773,873 416 774,289 (83,377) Eliminations — (416) (416) — Total $ 773,873 $ — $ 773,873 $ (83,377)
Schedule of reconciliation of segment operating income (loss) to income from continuing operations before income taxes	Three Months Ended Six Months Ended March 31, March 31, 2018 2017 2018 2017 (in thousands) (in thousands) Segment operating income (loss) $ 24,814 $ (58,049) $ 54,501 $ (83,377) Income from asset sales 5,255 14,889 10,820 15,731 Corporate general and administrative costs and corporate depreciation (31,322) (22,512) (63,054) (47,190) Operating income (loss) (1,253) (65,672) 2,267 (114,836) Other income (expense) Interest and dividend income 1,847 1,338 3,571 2,328 Interest expense (6,028) (6,084) (11,801) (11,139) Other (121) 174 409 561 Total unallocated amounts (4,302) (4,572) (7,821) (8,250) Loss from continuing operations before income taxes $ (5,555) $ (70,244) $ (5,554) $ (123,086)
Schedule of total assets by reportable segment	March 31, September 30, 2018 2017 (in thousands) Total assets U.S. Land $ 4,940,149 $ 4,967,074 Offshore 101,350 99,533 International Land 399,898 413,392 Other 182,003 133,085 5,623,400 5,613,084 Investments and corporate operations 638,392 826,901 Total assets from continued operations 6,261,792 6,439,985 Discontinued operations 3 $ 6,261,792 $ 6,439,988
Schedule of revenues from external customers and long-lived assets	Three Months Ended Six Months Ended March 31, March 31, 2018 2017 2018 2017 (in thousands) (in thousands) Operating Revenues United States $ 524,435 $ 370,526 $ 1,025,193 $ 671,085 Argentina 49,800 23,267 98,629 71,349 Colombia 237 8,852 12,233 18,223 Other Foreign 3,012 2,638 5,516 13,216 Total $ 577,484 $ 405,283 $ 1,141,571 $ 773,873

Pensions and Other Post-retir35

Pensions and Other Post-retirement Benefits (Tables)	6 Months Ended
	Mar. 31, 2018
Pensions and Other Post-retirement Benefits
Schedule of components of net periodic pension expense (benefit)	Three Months Ended Six Months Ended March 31, March 31, 2018 2017 2018 2017 (in thousands) (in thousands) Interest cost $ 1,014 $ 975 $ 2,028 $ 1,950 Expected return on plan assets (1,386) (1,299) (2,772) (2,598) Recognized net actuarial loss 460 575 921 1,150 Net pension expense $ 88 $ 251 $ 177 $ 502

Supplemental Cash Flow Inform36

Supplemental Cash Flow Information (Tables)	6 Months Ended
	Mar. 31, 2018
Supplemental Cash Flow Information
Schedule of supplemental cash flow information	Six Months Ended March 31, 2018 2017 (in thousands) Capital expenditures incurred $ 190,965 $ 191,804 Additions incurred in prior year but paid for in current year 20,004 9,465 Additions incurred but not paid for as of the end of the period (19,767) (25,966) Capital expenditures per Consolidated Statements of Cash Flows $ 191,202 $ 175,303

Guarantor and Non-Guarantor F37

Guarantor and Non-Guarantor Financial Information (Tables)	6 Months Ended
	Mar. 31, 2018
Guarantor and Non-Guarantor Financial Information
Schedule of Consolidated Condensed Statements of Operations	CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (in thousands) Three Months Ended March 31, 2018 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Operating revenue $ — $ 515,712 $ 61,793 $ (21) $ 577,484 Operating costs and other 4,209 503,173 71,601 (246) 578,737 Operating income (loss) from continuing operations (4,209) 12,539 (9,808) 225 (1,253) Other income, net 19 1,732 200 (225) 1,726 Interest expense (138) (4,551) (1,339) — (6,028) Equity in net income of subsidiaries (7,963) (16,081) — 24,044 — Loss from continuing operations before income taxes (12,291) (6,361) (10,947) 24,044 (5,555) Income tax expense (benefit) (411) 1,639 (5,150) — (3,922) Loss from continuing operations (11,880) (8,000) (5,797) 24,044 (1,633) Income from discontinued operations before income taxes — — 1,263 — 1,263 Income tax provision — — 11,509 — 11,509 Loss from discontinued operations — — (10,246) — (10,246) Net loss $ (11,880) $ (8,000) $ (16,043) $ 24,044 $ (11,879) CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (in thousands) Three Months Ended March 31, 2017 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Operating revenue $ — $ 367,202 $ 38,097 $ (16) $ 405,283 Operating costs and expenses 3,300 415,544 52,341 (230) 470,955 Operating loss from continuing operations (3,300) (48,342) (14,244) 214 (65,672) Other income (expense), net 1 1,814 (89) (214) 1,512 Interest expense (87) (5,148) (849) — (6,084) Equity in net loss of subsidiaries (46,677) (11,118) — 57,795 — Loss from continuing operations before income taxes (50,063) (62,794) (15,182) 57,795 (70,244) Income tax benefit (1,245) (17,410) (3,116) — (21,771) Loss from continuing operations (48,818) (45,384) (12,066) 57,795 (48,473) Loss from discontinued operations before income taxes — — (94) — (94) Income tax provision — — 251 — 251 Loss from discontinued operations — — (345) — (345) Net loss $ (48,818) $ (45,384) $ (12,411) $ 57,795 $ (48,818) CONSOLIDATED CONDENSED STATEMENTS OF INCOME (in thousands) Six Months Ended March 31, 2018 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Operating revenue $ — $ 1,010,718 $ 130,890 $ (37) $ 1,141,571 Operating costs and other 8,387 984,821 146,547 (451) 1,139,304 Operating income (loss) from continuing operations (8,387) 25,897 (15,657) 414 2,267 Other income, net 280 3,373 741 (414) 3,980 Interest expense (166) (10,251) (1,384) — (11,801) Equity in net income of subsidiaries 499,457 5,284 — (504,741) — Income (loss) from continuing operations before income taxes 491,184 24,303 (16,300) (504,741) (5,554) Income tax expense (benefit) 2,958 (476,955) (30,566) — (504,563) Income from continuing operations 488,226 501,258 14,266 (504,741) 499,009 Income from discontinued operations before income taxes — — 744 — 744 Income tax provision — — 11,526 — 11,526 Loss from discontinued operations — — (10,782) — (10,782) Net income $ 488,226 $ 501,258 $ 3,484 $ (504,741) $ 488,227 CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (in thousands) Six Months Ended March 31, 2017 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Operating revenue $ — $ 664,650 $ 109,256 $ (33) $ 773,873 Operating costs and other 6,760 755,046 127,364 (461) 888,709 Operating loss from continuing operations (6,760) (90,396) (18,108) 428 (114,836) Other income, net 1 2,833 483 (428) 2,889 Interest expense (173) (9,857) (1,109) — (11,139) Equity in net loss of subsidiaries (79,669) (10,789) — 90,458 — Loss from continuing operations before income taxes (86,601) (108,209) (18,734) 90,458 (123,086) Income tax provision (2,720) (29,960) (7,379) — (40,059) Loss from continuing operations (83,881) (78,249) (11,355) 90,458 (83,027) Loss from discontinued operations before income taxes — — (518) — (518) Income tax provision — — 336 — 336 Loss from discontinued operations — — (854) — (854) Net loss $ (83,881) $ (78,249) $ (12,209) $ 90,458 $ (83,881)
Schedule of Consolidated Condensed Statements of Comprehensive Income	CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (in thousands) Three Months Ended March 31, 2018 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Net loss $ (11,880) $ (8,000) $ (16,043) $ 24,044 $ (11,879) Other comprehensive income (loss), net of income taxes: Unrealized depreciation on securities, net — (7,568) — — (7,568) Minimum pension liability adjustments, net 92 216 — — 308 Other comprehensive income (loss) 92 (7,352) — — (7,260) Comprehensive loss $ (11,788) $ (15,352) $ (16,043) $ 24,044 $ (19,139) CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (in thousands) Three Months Ended March 31, 2017 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Net loss $ (48,818) $ (45,384) $ (12,411) $ 57,795 $ (48,818) Other comprehensive income (loss), net of income taxes: Unrealized depreciation on securities, net — (10,507) — — (10,507) Minimum pension liability adjustments, net 106 260 — — 366 Other comprehensive income (loss) 106 (10,247) — — (10,141) Comprehensive loss $ (48,712) $ (55,631) $ (12,411) $ 57,795 $ (58,959) CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (in thousands) Six Months Ended March 31, 2018 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Net income $ 488,226 $ 501,258 $ 3,484 $ (504,741) $ 488,227 Other comprehensive income (loss), net of income taxes: Unrealized depreciation on securities, net — (8,169) — — (8,169) Minimum pension liability adjustments, net 194 454 — — 648 Other comprehensive income (loss) 194 (7,715) — — (7,521) Comprehensive income $ 488,420 $ 493,543 $ 3,484 $ (504,741) $ 480,706 CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (in thousands) Six Months Ended March 31, 2017 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Net loss $ (83,881) $ (78,249) $ (12,209) $ 90,458 $ (83,881) Other comprehensive income, net of income taxes: Unrealized appreciation on securities, net — 1,905 — — 1,905 Minimum pension liability adjustments, net 212 520 — — 732 Other comprehensive income 212 2,425 — — 2,637 Comprehensive loss $ (83,669) $ (75,824) $ (12,209) $ 90,458 $ (81,244)
Schedule of Consolidated Condensed Balance Sheets	CONSOLIDATED CONDENSED BALANCE SHEETS (in thousands) March 31, 2018 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated ASSETS Current assets: Cash and cash equivalents $ (787) $ 324,530 $ 11,021 $ — $ 334,764 Short-term investments — 45,270 — — 45,270 Accounts receivable, net of reserve 794 465,049 79,581 (76) 545,348 Inventories — 109,527 33,650 — 143,177 Prepaid expenses and other 22,718 4,484 35,285 (63) 62,424 Current assets of discontinued operations — — — — — Total current assets 22,725 948,860 159,537 (139) 1,130,983 Investments 14,976 58,380 — — 73,356 Property, plant and equipment, net 47,706 4,527,404 323,415 — 4,898,525 Intercompany 147,333 2,000,285 247,981 (2,395,599) — Goodwill — — 69,496 — 69,496 Intangible assets, net of amortization — — 77,001 — 77,001 Other assets 5,166 1,055 6,210 — 12,431 Investment in subsidiaries 5,961,792 188,761 — (6,150,553) — Total assets $ 6,199,698 $ 7,724,745 $ 883,640 $ (8,546,291) $ 6,261,792 LIABILITIES AND SHAREHOLDERS’ EQUITY Current liabilities: Accounts payable $ 80,251 $ 39,878 $ 2,951 $ (68) $ 123,012 Accrued liabilities 30,356 172,718 14,092 (71) 217,095 Current liabilities of discontinued operations — — 78 — 78 Total current liabilities 110,607 212,596 17,121 (139) 340,185 Noncurrent liabilities: Long-term debt — 493,433 — — 493,433 Deferred income taxes (7,011) 774,914 48,766 — 816,669 Intercompany 1,566,255 252,200 577,044 (2,395,499) — Other 26,694 42,574 24,393 — 93,661 Noncurrent liabilities of discontinued operations — — 14,691 — 14,691 Total noncurrent liabilities 1,585,938 1,563,121 664,894 (2,395,499) 1,418,454 Shareholders’ equity: Common stock 11,201 100 — (100) 11,201 Additional paid-in capital 487,135 52,436 1,040 (53,476) 487,135 Retained earnings 4,189,497 5,897,470 200,585 (6,098,055) 4,189,497 Accumulated other comprehensive income (5,221) (978) — 978 (5,221) Treasury stock, at cost (179,459) — — — (179,459) Total shareholders’ equity 4,503,153 5,949,028 201,625 (6,150,653) 4,503,153 Total liabilities and shareholders’ equity $ 6,199,698 $ 7,724,745 $ 883,640 $ (8,546,291) $ 6,261,792 CONSOLIDATED CONDENSED BALANCE SHEETS (in thousands) September 30, 2017 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated ASSETS Current assets: Cash and cash equivalents $ (587) $ 508,091 $ 13,871 $ — $ 521,375 Short-term investments — 44,491 — — 44,491 Accounts receivable, net of reserve 766 411,599 64,714 (5) 477,074 Inventories — 102,470 34,734 — 137,204 Prepaid expenses and other 12,200 6,383 36,979 (442) 55,120 Current assets of discontinued operations — — 3 — 3 Total current assets 12,379 1,073,034 150,301 (447) 1,235,267 Investments 13,853 70,173 — — 84,026 Property, plant and equipment, net 49,851 4,609,144 342,056 — 5,001,051 Intercompany 90,885 1,746,662 248,540 (2,086,087) — Goodwill — — 51,705 — 51,705 Intangible assets, net of amortization — — 50,785 — 50,785 Other assets 4,955 3,839 8,360 — 17,154 Investment in subsidiaries 5,470,050 183,382 — (5,653,432) — Total assets $ 5,641,973 $ 7,686,234 $ 851,747 $ (7,739,966) $ 6,439,988 LIABILITIES AND SHAREHOLDERS’ EQUITY Current liabilities: Accounts payable $ 82,360 $ 48,679 $ 4,589 $ — $ 135,628 Accrued liabilities 26,698 148,491 33,941 (447) 208,683 Current liabilities of discontinued operations — — 74 — 74 Total current liabilities 109,058 197,170 38,604 (447) 344,385 Noncurrent liabilities: Long-term debt — 492,902 — — 492,902 Deferred income taxes (11,201) 1,286,381 57,509 — 1,332,689 Intercompany 1,354,068 210,823 521,096 (2,085,987) — Other 25,457 43,471 32,481 — 101,409 Noncurrent liabilities of discontinued operations — — 4,012 — 4,012 Total noncurrent liabilities 1,368,324 2,033,577 615,098 (2,085,987) 1,931,012 Shareholders’ equity: Common stock 11,196 100 — (100) 11,196 Additional paid-in capital 487,248 52,437 1,039 (53,476) 487,248 Retained earnings 3,855,686 5,396,212 197,006 (5,593,218) 3,855,686 Accumulated other comprehensive income 2,300 6,738 — (6,738) 2,300 Treasury stock, at cost (191,839) — — — (191,839) Total shareholders’ equity 4,164,591 5,455,487 198,045 (5,653,532) 4,164,591 Total liabilities and shareholders’ equity $ 5,641,973 $ 7,686,234 $ 851,747 $ (7,739,966) $ 6,439,988
Schedule of Consolidated Condensed Statements of Cash Flows	CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (in thousands) Six Months Ended March 31, 2018 Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Net cash provided by operating activities $ 3,946 $ 192,093 $ 955 $ — $ 196,994 INVESTING ACTIVITIES: Capital expenditures (4,661) (181,218) (5,323) — (191,202) Purchase of short-term investments — (36,784) — — (36,784) Acquisition of business, net of cash acquired (47,886) — — — (47,886) Proceeds from sale of short-term investments — 32,020 — — 32,020 Intercompany transfers 52,547 (52,547) — — — Proceeds from asset sales — 16,308 1,518 — 17,826 Net cash used in investing activities — (222,221) (3,805) — (226,026) FINANCING ACTIVITIES: Intercompany transfers 153,433 (153,433) — — — Dividends paid (153,433) — — — (153,433) Proceeds from stock option exercises 1,645 — — — 1,645 Payments for employee taxes on net settlement of equity awards (5,791) — — — (5,791) Net cash used in financing activities (4,146) (153,433) — — (157,579) Net decrease in cash and cash equivalents (200) (183,561) (2,850) — (186,611) Cash and cash equivalents, beginning of period (587) 508,091 13,871 — 521,375 Cash and cash equivalents, end of period $ (787) $ 324,530 $ 11,021 $ — $ 334,764 CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (in thousands) Six Months Ended March 31, 2017, as adjusted Guarantor/ Issuer Non-Guarantor Total Parent Subsidiary Subsidiaries Eliminations Consolidated Net cash provided by (used in) operating activities $ (5,993) $ 148,481 $ 7,790 $ — $ 150,278 INVESTING ACTIVITIES: Capital expenditures (1,343) (172,338) (1,622) — (175,303) Purchase of short-term investments — (37,899) — — (37,899) Proceeds from sale of short-term investments — 34,000 — — 34,000 Intercompany transfers 1,343 (1,343) — — — Proceeds from asset sales — 12,908 551 — 13,459 Net cash used in investing activities — (164,672) (1,071) — (165,743) FINANCING ACTIVITIES: Intercompany transfers 152,617 (152,617) — — — Dividends paid (152,617) — — — (152,617) Proceeds from stock option exercises 10,372 — — — 10,372 Payments for employee taxes on net settlement of equity awards (6,105) — — — (6,105) Net cash provided by (used in) financing activities 4,267 (152,617) — — (148,350) Net increase (decrease) in cash and cash equivalents (1,726) (168,808) 6,719 — (163,815) Cash and cash equivalents, beginning of period (955) 899,028 7,488 — 905,561 Cash and cash equivalents, end of period $ (2,681) $ 730,220 $ 14,207 $ — $ 741,746

Basis of Presentation (Details)

Basis of Presentation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Oct. 01, 2017
New accounting pronouncements
Increase in cash provided by operating activities			$ 196,994	$ 150,278
Decrease in net cash used in financing activities			(157,579)	(148,350)
Other disclosures
Early termination revenue	$ 4,000	$ 6,200	8,300	19,700
Abandonments	8,200	18,600	15,500	19,400
Foreign currency (gain) loss	(200)	$ 600	1,400	2,000
ASU 2016-09
New accounting pronouncements
Increase in cash provided by operating activities				3,900
Decrease in net cash used in financing activities				$ 3,900
Cumulative effect adjustment	$ 317		$ 317		$ 300

Basis of Presentation - Finite-

Basis of Presentation - Finite-lived intangible asset (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Sep. 30, 2017
Finite-lived intangible asset
Gross Carrying Amount	$ 79,700	$ 51,000
Accumulated Amortization	3,618	1,134
Developed technology
Finite-lived intangible asset
Gross Carrying Amount	70,000	51,000
Accumulated Amortization	3,256	$ 1,134
Trade Name
Finite-lived intangible asset
Gross Carrying Amount	5,700
Accumulated Amortization	95
Customer Relationships
Finite-lived intangible asset
Gross Carrying Amount	4,000
Accumulated Amortization	$ 267

Basis of Presentation - Indefin

Basis of Presentation - Indefinite-lived intangible asset (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Sep. 30, 2017
Trademark
Indefinite-lived intangible asset
Gross Carrying Amount	$ 919	$ 919

Basis of Presentation - Amortiz

Basis of Presentation - Amortization (Details) $ in Millions	3 Months Ended	6 Months Ended
	Mar. 31, 2018USD ($)	Mar. 31, 2018USD ($)
Basis of Presentation
Amortization expense	$ 1.7	$ 2.5
Expected annual amortization in next fiscal year	5.4	5.4
Expected annual amortization in year two	5.8	5.8
Expected annual amortization in year three	5.8	5.8
Expected annual amortization in year four	5.8	5.8
Expected annual amortization in year five	5.8	5.8
Expected annual amortization in year six	$ 5.1	$ 5.1

Business Combinations (Details)

Business Combinations (Details) - USD ($) $ in Thousands	Dec. 08, 2017	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Sep. 30, 2017
Business Combinations
Payment to acquire business, net				$ 47,886
Operating revenue		$ 577,484	$ 405,283	1,141,571	$ 773,873
Net loss		11,879	$ 48,818	(488,227)	83,881
Fair value of assets acquired
Goodwill		69,496		$ 69,496		$ 51,705
Minimum | Restricted stock
Business Combinations
Vesting period				3 years
Maximum | Restricted stock
Business Combinations
Vesting period				6 years
MagVAR Acquisition
Business Combinations
Payment to acquire business, net	$ 47,900
Period escrow to be released to seller	12 months
Operating revenue				$ 3,900
Net loss				1,100
Purchase Price
Cash consideration	$ 48,485
Fair value of assets acquired
Current assets	2,286
Property, plant and equipment	13
Intangible assets, net of amortization	28,700
Goodwill	17,791
Total assets acquired	48,790
Fair value of liabilities assumed
Current liabilities	305
Fair value of total assets and liabilities acquired	48,485
Pro forma financial information:
After-tax transaction costs excluded from pro forma earnings				600
Revenues				1,145,258	778,628
Net income (loss)				488,439	$ (83,287)
MagVAR Acquisition | Prepaid expenses and other
Business Combinations
Restricted cash	$ 6,000
MagVAR Acquisition | Restricted stock
Business Combinations
Restricted stock awards issued	213,904
Vesting period	3 years
MagVAR Acquisition | General and Administrative
Business Combinations
Business acquisition transaction cost		$ 1,200		$ 1,200
MagVAR Acquisition | Minimum
Business Combinations
Estimated useful lives (in years)	5 years
MagVAR Acquisition | Maximum
Business Combinations
Estimated useful lives (in years)	20 years

Earnings per Share (Details)

Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Numerator:
Income (loss) from continuing operations	$ (1,633)	$ (48,473)	$ 499,009	$ (83,027)
Loss from discontinued operations	(10,246)	(345)	(10,782)	(854)
NET INCOME (LOSS)	(11,879)	(48,818)	488,227	(83,881)
Adjustment for basic earnings per share:
Earnings allocated to unvested shareholders	(717)	(445)	(4,106)	(891)
Numerator for basic earnings per share:
From continuing operations	(2,350)	(48,918)	494,903	(83,918)
From discontinued operations	(10,246)	(345)	(10,782)	(854)
Net income (loss) attributable to parent, basic	(12,596)	(49,263)	484,121	(84,772)
Adjustment for diluted earnings per share:
Effect of reallocating undistributed earnings of unvested shareholders			11
Numerator for diluted earnings per share:
From continuing operations	(2,350)	(48,918)	494,914	(83,918)
From discontinued operations	(10,246)	(345)	(10,782)	(854)
Net income (loss) attributable to parent, diluted	$ (12,596)	$ (49,263)	$ 484,132	$ (84,772)
Denominator:
Denominator for basic earnings per share – weighted-average shares	108,868	108,565	108,775	108,419
Effect of dilutive shares from stock options and restricted stock (in shares)			437
Denominator for diluted earnings per share – adjusted weighted-average shares	108,868	108,565	109,212	108,419
Basic earnings per common share:
Income (loss) from continuing operations (in dollars per share)	$ (0.03)	$ (0.45)	$ 4.55	$ (0.77)
Loss from discontinued operations (in dollars per share)	(0.09)		(0.10)	(0.01)
Net income (loss) (in dollars per share)	(0.12)	(0.45)	4.45	(0.78)
Diluted earnings per common share:
Income (loss) from continuing operations (in dollars per share)	(0.03)	(0.45)	4.53	(0.77)
Loss from discontinued operations (in dollars per share)	(0.09)		(0.10)	(0.01)
Net income (loss) (in dollars per share)	$ (0.12)	$ (0.45)	$ 4.43	$ (0.78)
Outstanding equity awards
Shares excluded from calculation of diluted earnings per share (in shares)	1,613	566	1,676	566
Weighted-average price per share (in dollars per share)	$ 68.69	$ 80.43	$ 68.12	$ 80.43

Financial Instruments and Fai44

Financial Instruments and Fair Value Measurement - Equity Securities (Details) $ in Thousands	Mar. 31, 2018USD ($)item	Sep. 30, 2017USD ($)
Available-for-sale securities
Number of securities declined to unrealized loss position | item	1
(Level 1)
Non-qualified Supplemental Savings Plan
Assets held in Non-qualified Supplement Savings Plan, at fair value	$ 15,000	$ 13,900
Equity securities
Available-for-sale securities
Cost	38,473	38,473
Gross Unrealized Gains	26,572	31,700
Gross Unrealized Losses	(6,664)
Estimated Fair Value	$ 58,381	$ 70,173

Financial Instruments and Fai45

Financial Instruments and Fair Value Measurement - Assets measured at fair value and Supplemental fair value information (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Sep. 30, 2017	Mar. 19, 2015
Supplemental fair value information about long-term fixed-rate debt
Long-term debt	$ 493,433	$ 492,902
Unsecured senior notes issued March 19, 2015
Supplemental fair value information about long-term fixed-rate debt
Debt issued	500,000		$ 500,000
Recurring basis
Short-term investments:
Short-term investments	45,270
Assets:
Cash and cash equivalents	334,764
Investments	58,381
Other current assets	38,385
Other assets	6,905
Total assets measured at fair value	483,705
Liabilities:
Contingent earnout liability	15,702
Carrying value
Supplemental fair value information about long-term fixed-rate debt
Long-term debt	493,400	492,900
(Level 1) | Recurring basis
Short-term investments:
Short-term investments	25,914
Assets:
Cash and cash equivalents	334,764
Investments	58,381
Other current assets	38,385
Other assets	6,905
Total assets measured at fair value	464,349
(Level 2)
Supplemental fair value information about long-term fixed-rate debt
Fair value of long-term fixed-rate debt	521,800	$ 529,000
(Level 2) | Recurring basis
Short-term investments:
Short-term investments	19,356
Assets:
Total assets measured at fair value	19,356
(Level 3) | Recurring basis
Liabilities:
Contingent earnout liability	15,702
Certificates of deposit | Recurring basis
Short-term investments:
Short-term investments	3,498
Certificates of deposit | (Level 2) | Recurring basis
Short-term investments:
Short-term investments	3,498
Corporate and municipal debt securities | Recurring basis
Short-term investments:
Short-term investments	15,858
Corporate and municipal debt securities | (Level 2) | Recurring basis
Short-term investments:
Short-term investments	15,858
U.S. government and federal agency securities | Recurring basis
Short-term investments:
Short-term investments	25,914
U.S. government and federal agency securities | (Level 1) | Recurring basis
Short-term investments:
Short-term investments	$ 25,914

Shareholders' Equity - AOCI Com

Shareholders' Equity - AOCI Components (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Sep. 30, 2017
Repurchase of shares
Repurchase of common stock (in shares)	0	0
After-tax amounts:
Accumulated other comprehensive income (loss), after tax	$ (5,221)		$ 2,300
Maximum
Repurchase of shares
Number of common shares authorized to be repurchased	4,000,000
Unrealized appreciation (depreciation) on securities
Pre-tax amounts:
Accumulated other comprehensive income (loss) before tax	$ 19,908		31,700
After-tax amounts:
Accumulated other comprehensive income (loss), after tax	11,901		20,070
Defined benefit pension plan
Pre-tax amounts:
Accumulated other comprehensive income (loss) before tax	(27,952)		(28,873)
After-tax amounts:
Accumulated other comprehensive income (loss), after tax	(17,122)		(17,770)
Accumulated Other Comprehensive Loss
Pre-tax amounts:
Accumulated other comprehensive income (loss) before tax	(8,044)		2,827
After-tax amounts:
Accumulated other comprehensive income (loss), after tax	$ (5,221)		$ 2,300

Shareholders' Equity - AOCI Cha

Shareholders' Equity - AOCI Changes (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2018	Mar. 31, 2018
Rollforward of accumulated other comprehensive income (loss), net of tax
Balance at beginning of period		$ 4,164,591
Balance at end of period	$ 4,503,153	4,503,153
Unrealized appreciation (depreciation) on securities
Rollforward of accumulated other comprehensive income (loss), net of tax
Balance at beginning of period	19,469	20,070
Other comprehensive loss before reclassifications	(7,568)	(8,169)
Net current-period other comprehensive income (loss)	(7,568)	(8,169)
Balance at end of period	11,901	11,901
Defined benefit pension plan
Rollforward of accumulated other comprehensive income (loss), net of tax
Balance at beginning of period	(17,430)	(17,770)
Amounts reclassified from accumulated other comprehensive income	308	648
Net current-period other comprehensive income (loss)	308	648
Balance at end of period	(17,122)	(17,122)
Accumulated Other Comprehensive Loss
Rollforward of accumulated other comprehensive income (loss), net of tax
Balance at beginning of period	2,039	2,300
Other comprehensive loss before reclassifications	(7,568)	(8,169)
Amounts reclassified from accumulated other comprehensive income	308	648
Net current-period other comprehensive income (loss)	(7,260)	(7,521)
Balance at end of period	$ (5,221)	$ (5,221)

Shareholders' Equity - AOCI Rec

Shareholders' Equity - AOCI Reclassifications (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Accumulated Other Comprehensive Loss
Accumulated other comprehensive income (loss) components which were reclassified to the Consolidated Statement of Operations
Total reclassifications for the period	$ (308)	$ (366)	$ (648)	$ (732)
Defined benefit pension plan
Accumulated other comprehensive income (loss) components which were reclassified to the Consolidated Statement of Operations
Reclassifications for the period, tax	152	209	273	418
Amortization of net actuarial loss on defined benefit pension plan | General and Administrative
Accumulated other comprehensive income (loss) components which were reclassified to the Consolidated Statement of Operations
Reclassifications for the period, before tax	$ (460)	$ (575)	$ (921)	$ (1,150)

Cash Dividends (Details)

Cash Dividends (Details) - $ / shares	Mar. 07, 2018	Mar. 01, 2018	Dec. 05, 2017	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Cash Dividends
Cash dividends declared, per share (in dollars per share)	$ 0.70		$ 0.70	$ 0.70	$ 0.70	$ 1.4	$ 1.40
Cash dividend paid, per share (in dollars per share)		$ 0.70

Stock-Based Compensation - Comp

Stock-Based Compensation - Compensation cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Stock based awards
Compensation expense (in dollars)	$ 8,459	$ 6,578	$ 15,546	$ 12,479
Stock options
Stock based awards
The period from the grant date after which options expire			10 years
Number of shares granted	7,000		667,000
Compensation expense (in dollars)	$ 2,109	1,869	$ 4,072	3,521
Restricted stock
Stock based awards
Number of shares granted			619,000
Compensation expense (in dollars)	$ 6,350	$ 4,709	$ 11,474	$ 8,958
2016 Plan | Stock options
Stock based awards
Number of shares granted			667,032
2016 Plan | Restricted stock
Stock based awards
Number of shares granted			405,086
2010 Plan | Restricted stock
Stock based awards
Number of shares granted			213,904

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock options (Details) - Stock options - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended	6 Months Ended
	Mar. 31, 2018	Mar. 31, 2018	Mar. 31, 2017
Weighted-average assumptions utilized in determining the fair value of options
Risk-free interest rate (as a percent)		2.20%	2.00%
Expected stock volatility (as a percent)		36.10%	39.40%
Dividend yield (as a percent)		4.80%	3.40%
Expected term (in years)		6 years	5 years 6 months
Options
Options outstanding at the beginning of the period (in shares)	3,755	3,278
Granted (in shares)	7	667
Exercised (in shares)	(41)	(224)
Option outstanding at the end of the period (in shares)	3,721	3,721
Vested and expected to vest at the end of the period (in shares)	3,721	3,721
Exercisable at the end of the period (in shares)	2,358	2,358
Weighted-Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 57.82	$ 56.41
Granted (in dollars per share)	71.57	58.66
Exercised (in dollars per share)	30.66	34.27
Outstanding at the end of the period (in dollars per share)	58.15	58.15
Vested and expected to vest at the end of the period (in dollars per share)	58.15	58.15
Exercisable at the end of the period (in dollars per share)	$ 55.64	$ 55.64
Weighted- Average Remaining Contractual Term
Outstanding at the end of the period	6 years 2 months 27 days
Vested and expected to vest at the end of the period	6 years 2 months 27 days
Weighted-average remaining life of exercisable stock options	4 years 9 months
Aggregate Intrinsic Value
Outstanding at the end of the period (in dollars)	$ 40.1	$ 40.1
Options vested or expected to vest, aggregate intrinsic value (in dollars)	40.1	40.1
Exercisable at the end of the period (in dollars)	$ 31.1	$ 31.1

Stock-Based Compensation, Other

Stock-Based Compensation, Other (Details) - Stock options - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2018
Stock based awards
Weighted-average fair value of options granted (in dollars per share)	$ 17.78	$ 12.94
Total intrinsic value of options exercised (in dollars)	$ 1.6		$ 5.6
Unrecognized compensation cost (in dollars)	$ 11.8		$ 11.8
Period over which unrecognized compensation cost is expected to be recognized			2 years 2 months 12 days

Stock-Based Compensation - Rest

Stock-Based Compensation - Restricted Stock (Details) - Restricted stock $ / shares in Units, shares in Thousands, $ in Millions	6 Months Ended
	Mar. 31, 2018USD ($)$ / sharesshares
Stock based award plan
Unrecognized compensation cost (in dollars) | $	$ 47.8
Weighted-average period over which unrecognized compensation cost is expected to be recognized	2 years 7 months 6 days
Restricted stock awards activity, shares
Unvested at the beginning of the period (in shares) | shares	659
Granted (in shares) | shares	619
Vested (in shares) | shares	(251)
Forfeited (in shares) | shares	(4)
Unvested at the end of the period (in shares) | shares	1,023
Restricted stock awards activity, weighted average grant date fair value
Unvested at the beginning of the period (in dollars per share) | $ / shares	$ 70.76
Granted (in dollars per share) | $ / shares	59.43
Vested (in dollars per share) | $ / shares	71.63
Forfeited (in dollars per share) | $ / shares	66.27
Unvested at the end of the period (in dollars per share) | $ / shares	$ 63.71
Minimum
Stock based award plan
Vesting period	3 years
Maximum
Stock based award plan
Vesting period	6 years

Debt (Details)

Debt (Details) $ in Thousands	Mar. 19, 2015USD ($)	Mar. 31, 2018USD ($)letteritem	Sep. 30, 2017USD ($)
Debt
Unsecured long-term debt		$ 500,000	$ 500,000
Long-term debt		500,000	500,000
Unamortized discount and debt issuance costs		(6,567)	(7,098)
Unamortized discount and debt issuance costs, noncurrent		(6,567)	(7,098)
Unsecured senior notes issued March 19, 2015
Debt
Unsecured long-term debt		500,000	500,000
Unamortized discount and debt issuance costs		(6,567)	$ (7,098)
Debt issued	$ 500,000	500,000
Long-term debt stated interest rate percentage	4.65%
Term of debt	10 years
Unsecured revolving credit facility mature on July 13, 2021
Debt
Borrowing capacity		$ 300,000
Commitment fee (as a percent)		0.15%
Financial covenants | item		1
Maximum limit of priority debt on net worth		17.50%
Borrowing amount outstanding		$ 0
Available borrowing capacity		$ 260,700
Unsecured revolving credit facility mature on July 13, 2021 | Minimum
Debt
Commitment fee (as a percent)		0.15%
Unsecured revolving credit facility mature on July 13, 2021 | Maximum
Debt
Commitment fee (as a percent)		0.30%
Funded leverage ratio (as a percent)		50.00%
Unsecured revolving credit facility mature on July 13, 2021 | London Interbank Offered Rate (LIBOR)
Debt
Interest spread on borrowings (as a percent)		1.125%
Unsecured revolving credit facility mature on July 13, 2021 | London Interbank Offered Rate (LIBOR) | Minimum
Debt
Interest spread on borrowings (as a percent)		1.125%
Unsecured revolving credit facility mature on July 13, 2021 | London Interbank Offered Rate (LIBOR) | Maximum
Debt
Interest spread on borrowings (as a percent)		1.75%
Unsecured revolving credit facility mature on July 13, 2021 | Letter of credit
Debt
Borrowing capacity		$ 75,000
Number of letters of credit outstanding | letter		3
Letters of credit outstanding/issued		$ 39,300
Unsecured standalone line of credit facility
Debt
Maximum borrowing capacity		$ 12,000
Number of bonds issued | item		3
Letters of credit outstanding/issued		$ 5,600
Number of bonds denominated in a foreign currency which rose in value | item		2
Increase in bond value		$ 100

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Taxes
Effective income tax rate (as a percent)	70.60%	31.00%	9084.70%	32.50%
U.S. federal statutory rate (as a percent)						35.00%
Income tax benefit related to new tax act	$ 1.4		$ 501.8
Forecast
Income Taxes
U.S. federal statutory rate (as a percent)					24.50%

Commitments and Contingencies (

Commitments and Contingencies (Details) $ in Millions	Mar. 31, 2018USD ($)
Commitments and Contingencies
Purchase orders outstanding for drilling equipment	$ 70.3
Contingencies
Gain contingencies recognized in consolidated financial statements	$ 0

Segment Information - Income by

Segment Information - Income by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Segment information
Total Sales	$ 577,484	$ 405,283	$ 1,141,571	$ 773,873
Segment Operating Income (Loss)	24,814	(58,049)	54,501	(83,377)
Other
Segment information
Total Sales	9,313	3,324	15,180	6,435
Segment Operating Income (Loss)	(7,015)	(1,134)	(14,332)	(3,183)
Operating segment
Segment information
Total Sales	577,771	405,491	1,142,078	774,289
Operating segment | Other
Segment information
Total Sales	9,565	3,532	15,652	6,851
Inter-Segment
Segment information
Total Sales	(287)	(208)	(507)	(416)
Inter-Segment | Other
Segment information
Total Sales	252	208	472	416
Contract Drilling:
Segment information
Total Sales	568,171	401,959	1,126,391	767,438
Segment Operating Income (Loss)	31,829	(56,915)	68,833	(80,194)
Contract Drilling: | U.S. Land
Segment information
Total Sales	482,729	330,967	944,369	594,603
Segment Operating Income (Loss)	27,075	(51,850)	51,820	(82,738)
Contract Drilling: | Offshore
Segment information
Total Sales	32,983	36,235	66,349	70,047
Segment Operating Income (Loss)	5,449	5,912	14,174	12,696
Contract Drilling: | International Land
Segment information
Total Sales	52,459	34,757	115,673	102,788
Segment Operating Income (Loss)	(695)	(10,977)	2,839	(10,152)
Contract Drilling: | Operating segment
Segment information
Total Sales	568,206	401,959	1,126,426	767,438
Contract Drilling: | Operating segment | U.S. Land
Segment information
Total Sales	482,764	330,967	944,404	594,603
Contract Drilling: | Operating segment | Offshore
Segment information
Total Sales	32,983	36,235	66,349	70,047
Contract Drilling: | Operating segment | International Land
Segment information
Total Sales	52,459	$ 34,757	115,673	$ 102,788
Contract Drilling: | Inter-Segment
Segment information
Total Sales	35		35
Contract Drilling: | Inter-Segment | U.S. Land
Segment information
Total Sales	$ 35		$ 35

Segment Information - Reconcila

Segment Information - Reconcilation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Reconciliation of segment operating income to income from continuing operations before income taxes
Segment operating income (loss)	$ 24,814	$ (58,049)	$ 54,501	$ (83,377)
Income from asset sales	5,255	14,889	10,820	15,731
Corporate general and administrative costs and corporate depreciation	(31,322)	(22,512)	(63,054)	(47,190)
Operating income (loss) from continuing operations	(1,253)	(65,672)	2,267	(114,836)
Other income (expense):
Interest and dividend income	1,847	1,338	3,571	2,328
Interest expense	(6,028)	(6,084)	(11,801)	(11,139)
Other	(121)	174	409	561
Total other income (expense)	(4,302)	(4,572)	(7,821)	(8,250)
Loss from continuing operations before income taxes	$ (5,555)	$ (70,244)	$ (5,554)	$ (123,086)

Segment Information - Total ass

Segment Information - Total assets (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Sep. 30, 2017
Segment information
Assets	$ 6,261,792	$ 6,439,988
Operating segment
Segment information
Assets	5,623,400	5,613,084
Investments and corporate operations
Segment information
Assets	638,392	826,901
U.S. Land | Operating segment
Segment information
Assets	4,940,149	4,967,074
Offshore | Operating segment
Segment information
Assets	101,350	99,533
International Land | Operating segment
Segment information
Assets	399,898	413,392
Other | Operating segment
Segment information
Assets	182,003	133,085
Continued operations
Segment information
Assets	$ 6,261,792	6,439,985
Discontinued operations.
Segment information
Assets		$ 3

Segment Information - Revenue f

Segment Information - Revenue from external customers (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Segment information
Operating revenues	$ 577,484	$ 405,283	$ 1,141,571	$ 773,873
United States
Segment information
Operating revenues	524,435	370,526	1,025,193	671,085
Argentina
Segment information
Operating revenues	49,800	23,267	98,629	71,349
Colombia
Segment information
Operating revenues	237	8,852	12,233	18,223
Other Foreign
Segment information
Operating revenues	$ 3,012	$ 2,638	$ 5,516	$ 13,216

Pensions and Other Post-retir61

Pensions and Other Post-retirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Components of Net Periodic Benefit Cost
Interest cost	$ 1,014	$ 975	$ 2,028	$ 1,950
Expected return on plan assets	(1,386)	(1,299)	(2,772)	(2,598)
Recognized net actuarial loss	460	575	921	1,150
Net pension expense	$ 88	$ 251	$ 177	$ 502

Supplemental Cash Flow Inform62

Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Reconciliation of total capital expenditures incurred to total capital expenditures in the consolidated statements of cash flows
Capital expenditures incurred	$ 190,965	$ 191,804
Additions incurred in prior year but paid for in current period	20,004	9,465
Additions incurred but not paid for as of the end of the period	(19,767)	(25,966)
Capital expenditures per Consolidated Condensed Statements of Cash Flows	$ 191,202	$ 175,303

International Risk Factors (Det

International Risk Factors (Details) $ in Millions	3 Months Ended			6 Months Ended
	Mar. 31, 2018USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2015USD ($)	Mar. 31, 2018USD ($)item	Mar. 31, 2017USD ($)	Jun. 30, 2010item
International Risk Factors
Foreign currency gains (losses) | $	$ 0.2	$ (0.6)		$ (1.4)	$ (2)
Venezuela
International Risk Factors
Number of rigs expropriated by Venezuelan government | item						11
Argentina
International Risk Factors
Foreign currency gains (losses) | $			$ (8.5)
Operating revenues | Geographic concentration risk | South America
International Risk Factors
Concentration percentage				95.80%
Minimum
International Risk Factors
Number of geographical areas of operation to minimize risks | item				1
Contract Drilling: | Operating revenues | Geographic concentration risk | International locations
International Risk Factors
Concentration percentage				10.10%

Guarantor and Non-Guarantor F64

Guarantor and Non-Guarantor Financial Information - Debt (Details) - USD ($) $ in Millions	1 Months Ended
	Mar. 31, 2015	Mar. 31, 2018	Mar. 19, 2015
Financial Information
Percentage ownership of subsidiary	100.00%
Unsecured senior notes issued March 19, 2015
Financial Information
Debt issued		$ 500	$ 500
Issuer Subsidiary | Unsecured senior notes issued March 19, 2015
Financial Information
Debt issued	$ 500

Guarantor and Non-Guarantor F65

Guarantor and Non-Guarantor Financial Information - Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS
Operating revenue	$ 577,484	$ 405,283	$ 1,141,571	$ 773,873
Operating costs and other	578,737	470,955	1,139,304	888,709
Operating income (loss) from continuing operations	(1,253)	(65,672)	2,267	(114,836)
Other income (expense), net	1,726	1,512	3,980	2,889
Interest expense	(6,028)	(6,084)	(11,801)	(11,139)
Loss from continuing operations before income taxes	(5,555)	(70,244)	(5,554)	(123,086)
Income tax expense (benefit)	(3,922)	(21,771)	(504,563)	(40,059)
Income (loss) from continuing operations	(1,633)	(48,473)	499,009	(83,027)
Income (loss) from discontinued operations before income taxes	1,263	(94)	744	(518)
Income tax provision	11,509	251	11,526	336
Loss from discontinued operations	(10,246)	(345)	(10,782)	(854)
Net income (loss)	(11,879)	(48,818)	488,227	(83,881)
Eliminations
CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS
Operating revenue	(21)	(16)	(37)	(33)
Operating costs and other	(246)	(230)	(451)	(461)
Operating income (loss) from continuing operations	225	214	414	428
Other income (expense), net	(225)	(214)	(414)	(428)
Equity in net income (loss) of subsidiaries	24,044	57,795	(504,741)	90,458
Loss from continuing operations before income taxes	24,044	57,795	(504,741)	90,458
Income (loss) from continuing operations	24,044	57,795	(504,741)	90,458
Net income (loss)	24,044	57,795	(504,741)	90,458
Guarantor/Parent | Reportable Legal Entities
CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS
Operating costs and other	4,209	3,300	8,387	6,760
Operating income (loss) from continuing operations	(4,209)	(3,300)	(8,387)	(6,760)
Other income (expense), net	19	1	280	1
Interest expense	(138)	(87)	(166)	(173)
Equity in net income (loss) of subsidiaries	(7,963)	(46,677)	499,457	(79,669)
Loss from continuing operations before income taxes	(12,291)	(50,063)	491,184	(86,601)
Income tax expense (benefit)	(411)	(1,245)	2,958	(2,720)
Income (loss) from continuing operations	(11,880)	(48,818)	488,226	(83,881)
Net income (loss)	(11,880)	(48,818)	488,226	(83,881)
Issuer Subsidiary | Reportable Legal Entities
CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS
Operating revenue	515,712	367,202	1,010,718	664,650
Operating costs and other	503,173	415,544	984,821	755,046
Operating income (loss) from continuing operations	12,539	(48,342)	25,897	(90,396)
Other income (expense), net	1,732	1,814	3,373	2,833
Interest expense	(4,551)	(5,148)	(10,251)	(9,857)
Equity in net income (loss) of subsidiaries	(16,081)	(11,118)	5,284	(10,789)
Loss from continuing operations before income taxes	(6,361)	(62,794)	24,303	(108,209)
Income tax expense (benefit)	1,639	(17,410)	(476,955)	(29,960)
Income (loss) from continuing operations	(8,000)	(45,384)	501,258	(78,249)
Net income (loss)	(8,000)	(45,384)	501,258	(78,249)
Non-Guarantor Subsidiaries | Reportable Legal Entities
CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS
Operating revenue	61,793	38,097	130,890	109,256
Operating costs and other	71,601	52,341	146,547	127,364
Operating income (loss) from continuing operations	(9,808)	(14,244)	(15,657)	(18,108)
Other income (expense), net	200	(89)	741	483
Interest expense	(1,339)	(849)	(1,384)	(1,109)
Loss from continuing operations before income taxes	(10,947)	(15,182)	(16,300)	(18,734)
Income tax expense (benefit)	(5,150)	(3,116)	(30,566)	(7,379)
Income (loss) from continuing operations	(5,797)	(12,066)	14,266	(11,355)
Income (loss) from discontinued operations before income taxes	1,263	(94)	744	(518)
Income tax provision	11,509	251	11,526	336
Loss from discontinued operations	(10,246)	(345)	(10,782)	(854)
Net income (loss)	$ (16,043)	$ (12,411)	$ 3,484	$ (12,209)

Guarantor and Non-Guarantor F66

Guarantor and Non-Guarantor Financial Information - Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income (loss)	$ (11,879)	$ (48,818)	$ 488,227	$ (83,881)
Other comprehensive income (loss), net of income taxes:
Unrealized appreciation (depreciation) on securities, net	(7,568)	(10,507)	(8,169)	1,905
Minimum pension liability adjustments, net	308	366	648	732
Other comprehensive income (loss)	(7,260)	(10,141)	(7,521)	2,637
Comprehensive income (loss)	(19,139)	(58,959)	480,706	(81,244)
Reportable Legal Entities | Guarantor/Parent
CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income (loss)	(11,880)	(48,818)	488,226	(83,881)
Other comprehensive income (loss), net of income taxes:
Minimum pension liability adjustments, net	92	106	194	212
Other comprehensive income (loss)	92	106	194	212
Comprehensive income (loss)	(11,788)	(48,712)	488,420	(83,669)
Reportable Legal Entities | Issuer Subsidiary
CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income (loss)	(8,000)	(45,384)	501,258	(78,249)
Other comprehensive income (loss), net of income taxes:
Unrealized appreciation (depreciation) on securities, net	(7,568)	(10,507)	(8,169)	1,905
Minimum pension liability adjustments, net	216	260	454	520
Other comprehensive income (loss)	(7,352)	(10,247)	(7,715)	2,425
Comprehensive income (loss)	(15,352)	(55,631)	493,543	(75,824)
Reportable Legal Entities | Non-Guarantor Subsidiaries
CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income (loss)	(16,043)	(12,411)	3,484	(12,209)
Other comprehensive income (loss), net of income taxes:
Comprehensive income (loss)	(16,043)	(12,411)	3,484	(12,209)
Eliminations
CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income (loss)	24,044	57,795	(504,741)	90,458
Other comprehensive income (loss), net of income taxes:
Comprehensive income (loss)	$ 24,044	$ 57,795	$ (504,741)	$ 90,458

Guarantor and Non-Guarantor F67

Guarantor and Non-Guarantor Financial Information - Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Sep. 30, 2017	Mar. 31, 2017	Sep. 30, 2016
Current assets:
Cash and cash equivalents	$ 334,764	$ 521,375	$ 741,746	$ 905,561
Short-term investments	45,270	44,491
Accounts receivable, less reserve of $5,726 at March 31, 2018 and $5,721 at September 30, 2017	545,348	477,074
Inventories	143,177	137,204
Prepaid expenses and other	62,424	55,120
Current assets of discontinued operations		3
Total current assets	1,130,983	1,235,267
INVESTMENTS	73,356	84,026
Net property, plant and equipment, at cost	4,898,525	5,001,051
Goodwill	69,496	51,705
Intangible assets, net of amortization	77,001	50,785
Other assets	12,431	17,154
TOTAL ASSETS	6,261,792	6,439,988
CURRENT LIABILITIES:
Accounts payable	123,012	135,628
Accrued liabilities	217,095	208,683
Current liabilities of discontinued operations	78	74
Total current liabilities	340,185	344,385
NONCURRENT LIABILITIES:
Long-term debt	493,433	492,902
Deferred income taxes	816,669	1,332,689
Other	93,661	101,409
Noncurrent liabilities of discontinued operations	14,691	4,012
Total noncurrent liabilities	1,418,454	1,931,012
SHAREHOLDERS' EQUITY:
Common stock	11,201	11,196
Additional paid-in capital	487,135	487,248
Retained earnings	4,189,497	3,855,686
Accumulated other comprehensive income (loss), after tax	(5,221)	2,300
Treasury stock, at cost	(179,459)	(191,839)
Total shareholders' equity	4,503,153	4,164,591
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	6,261,792	6,439,988
Eliminations
Current assets:
Accounts receivable, less reserve of $5,726 at March 31, 2018 and $5,721 at September 30, 2017	(76)	(5)
Prepaid expenses and other	(63)	(442)
Total current assets	(139)	(447)
Intercompany	(2,395,599)	(2,086,087)
Investment in subsidiaries	(6,150,553)	(5,653,432)
TOTAL ASSETS	(8,546,291)	(7,739,966)
CURRENT LIABILITIES:
Accounts payable	(68)
Accrued liabilities	(71)	(447)
Total current liabilities	(139)	(447)
NONCURRENT LIABILITIES:
Intercompany	(2,395,499)	(2,085,987)
Total noncurrent liabilities	(2,395,499)	(2,085,987)
SHAREHOLDERS' EQUITY:
Common stock	(100)	(100)
Additional paid-in capital	(53,476)	(53,476)
Retained earnings	(6,098,055)	(5,593,218)
Accumulated other comprehensive income (loss), after tax	978	(6,738)
Total shareholders' equity	(6,150,653)	(5,653,532)
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	(8,546,291)	(7,739,966)
Guarantor/Parent | Reportable Legal Entities
Current assets:
Cash and cash equivalents	(787)	(587)	(2,681)	(955)
Accounts receivable, less reserve of $5,726 at March 31, 2018 and $5,721 at September 30, 2017	794	766
Prepaid expenses and other	22,718	12,200
Total current assets	22,725	12,379
INVESTMENTS	14,976	13,853
Net property, plant and equipment, at cost	47,706	49,851
Intercompany	147,333	90,885
Other assets	5,166	4,955
Investment in subsidiaries	5,961,792	5,470,050
TOTAL ASSETS	6,199,698	5,641,973
CURRENT LIABILITIES:
Accounts payable	80,251	82,360
Accrued liabilities	30,356	26,698
Total current liabilities	110,607	109,058
NONCURRENT LIABILITIES:
Deferred income taxes	(7,011)	(11,201)
Intercompany	1,566,255	1,354,068
Other	26,694	25,457
Total noncurrent liabilities	1,585,938	1,368,324
SHAREHOLDERS' EQUITY:
Common stock	11,201	11,196
Additional paid-in capital	487,135	487,248
Retained earnings	4,189,497	3,855,686
Accumulated other comprehensive income (loss), after tax	(5,221)	2,300
Treasury stock, at cost	(179,459)	(191,839)
Total shareholders' equity	4,503,153	4,164,591
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	6,199,698	5,641,973
Issuer Subsidiary | Reportable Legal Entities
Current assets:
Cash and cash equivalents	324,530	508,091	730,220	899,028
Short-term investments	45,270	44,491
Accounts receivable, less reserve of $5,726 at March 31, 2018 and $5,721 at September 30, 2017	465,049	411,599
Inventories	109,527	102,470
Prepaid expenses and other	4,484	6,383
Total current assets	948,860	1,073,034
INVESTMENTS	58,380	70,173
Net property, plant and equipment, at cost	4,527,404	4,609,144
Intercompany	2,000,285	1,746,662
Other assets	1,055	3,839
Investment in subsidiaries	188,761	183,382
TOTAL ASSETS	7,724,745	7,686,234
CURRENT LIABILITIES:
Accounts payable	39,878	48,679
Accrued liabilities	172,718	148,491
Total current liabilities	212,596	197,170
NONCURRENT LIABILITIES:
Long-term debt	493,433	492,902
Deferred income taxes	774,914	1,286,381
Intercompany	252,200	210,823
Other	42,574	43,471
Total noncurrent liabilities	1,563,121	2,033,577
SHAREHOLDERS' EQUITY:
Common stock	100	100
Additional paid-in capital	52,436	52,437
Retained earnings	5,897,470	5,396,212
Accumulated other comprehensive income (loss), after tax	(978)	6,738
Total shareholders' equity	5,949,028	5,455,487
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	7,724,745	7,686,234
Non-Guarantor Subsidiaries | Reportable Legal Entities
Current assets:
Cash and cash equivalents	11,021	13,871	$ 14,207	$ 7,488
Accounts receivable, less reserve of $5,726 at March 31, 2018 and $5,721 at September 30, 2017	79,581	64,714
Inventories	33,650	34,734
Prepaid expenses and other	35,285	36,979
Current assets of discontinued operations		3
Total current assets	159,537	150,301
Net property, plant and equipment, at cost	323,415	342,056
Intercompany	247,981	248,540
Goodwill	69,496	51,705
Intangible assets, net of amortization	77,001	50,785
Other assets	6,210	8,360
TOTAL ASSETS	883,640	851,747
CURRENT LIABILITIES:
Accounts payable	2,951	4,589
Accrued liabilities	14,092	33,941
Current liabilities of discontinued operations	78	74
Total current liabilities	17,121	38,604
NONCURRENT LIABILITIES:
Deferred income taxes	48,766	57,509
Intercompany	577,044	521,096
Other	24,393	32,481
Noncurrent liabilities of discontinued operations	14,691	4,012
Total noncurrent liabilities	664,894	615,098
SHAREHOLDERS' EQUITY:
Additional paid-in capital	1,040	1,039
Retained earnings	200,585	197,006
Total shareholders' equity	201,625	198,045
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 883,640	$ 851,747

Guarantor and Non-Guarantor F68

Guarantor and Non-Guarantor Financial Information - Cash Flows (Details) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS
Net cash provided by (used in) operating activities	$ 196,994	$ 150,278
INVESTING ACTIVITIES:
Capital expenditures	(191,202)	(175,303)
Purchase of short-term investments	(36,784)	(37,899)
Payment for acquisition of business, net of cash acquired	(47,886)
Proceeds from sale of short-term investments	32,020	34,000
Proceeds from asset sales	17,826	13,459
Net cash used in investing activities	(226,026)	(165,743)
FINANCING ACTIVITIES:
Dividends paid	(153,433)	(152,617)
Proceeds from stock option exercises	1,645	10,372
Payments for employee taxes on net settlement of equity awards	(5,791)	(6,105)
Net cash used in financing activities	(157,579)	(148,350)
Net decrease in cash and cash equivalents	(186,611)	(163,815)
Cash and cash equivalents, beginning of period	521,375	905,561
Cash and cash equivalents, end of period	334,764	741,746
Guarantor/Parent | Reportable Legal Entities
CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS
Net cash provided by (used in) operating activities	3,946	(5,993)
INVESTING ACTIVITIES:
Capital expenditures	(4,661)	(1,343)
Payment for acquisition of business, net of cash acquired	(47,886)
Intercompany transfers	52,547	1,343
FINANCING ACTIVITIES:
Intercompany transfers	153,433	152,617
Dividends paid	(153,433)	(152,617)
Proceeds from stock option exercises	1,645	10,372
Payments for employee taxes on net settlement of equity awards	(5,791)	(6,105)
Net cash used in financing activities	(4,146)	4,267
Net decrease in cash and cash equivalents	(200)	(1,726)
Cash and cash equivalents, beginning of period	(587)	(955)
Cash and cash equivalents, end of period	(787)	(2,681)
Issuer Subsidiary | Reportable Legal Entities
CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS
Net cash provided by (used in) operating activities	192,093	148,481
INVESTING ACTIVITIES:
Capital expenditures	(181,218)	(172,338)
Purchase of short-term investments	(36,784)	(37,899)
Proceeds from sale of short-term investments	32,020	34,000
Intercompany transfers	(52,547)	(1,343)
Proceeds from asset sales	16,308	12,908
Net cash used in investing activities	(222,221)	(164,672)
FINANCING ACTIVITIES:
Intercompany transfers	(153,433)	(152,617)
Net cash used in financing activities	(153,433)	(152,617)
Net decrease in cash and cash equivalents	(183,561)	(168,808)
Cash and cash equivalents, beginning of period	508,091	899,028
Cash and cash equivalents, end of period	324,530	730,220
Non-Guarantor Subsidiaries | Reportable Legal Entities
CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS
Net cash provided by (used in) operating activities	955	7,790
INVESTING ACTIVITIES:
Capital expenditures	(5,323)	(1,622)
Proceeds from asset sales	1,518	551
Net cash used in investing activities	(3,805)	(1,071)
FINANCING ACTIVITIES:
Net decrease in cash and cash equivalents	(2,850)	6,719
Cash and cash equivalents, beginning of period	13,871	7,488
Cash and cash equivalents, end of period	$ 11,021	$ 14,207