10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

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

For the quarterly period ended June 30, 2018

OR

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

For the transition period from to

Commission file number 001-32108

  Hornbeck Offshore Services, Inc.

(Exact Name of Registrant as Specified in Its Charter)

Delaware	72-1375844
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification Number)

103 NORTHPARK BOULEVARD, SUITE 300

COVINGTON, LA 70433

(Address of Principal Executive Offices) (Zip Code)

(985) 727-2000

(Registrant’s Telephone Number, Including Area Code)

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

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

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

Large accelerated filer☐	Accelerated filer ☒
Non-accelerated filer☐ (Do not check if a smaller reporting company)	Smaller reporting company☐
	Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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

The total number of shares of common stock, par value $.01 per share, outstanding as of July 31, 2018 was 37,595,348.

HORNBECK OFFSHORE SERVICES, INC. AND SUBSIDIARIES

FORM 10-Q FOR THE QUARTER ENDED JUNE 30, 2018

TABLE OF CONTENTS

PART 1—FINANCIAL INFORMATION	1
Item 1—Financial Statements	1
Item 2—Management’s Discussion and Analysis of Financial Condition and Results of Operations	20
Item 3—Quantitative and Qualitative Disclosures About Market Risk	37
Item 4—Controls and Procedures	37
PART II—OTHER INFORMATION	38
Item 1—Legal Proceedings	38
Item 1A—Risk Factors	38
Item 2—Unregistered Sales of Equity Securities and Use of Proceeds	38
Item 3—Defaults Upon Senior Securities	38
Item 4—Mine Safety Disclosures	38
Item 5—Other Information	39
Item 6—Exhibits	41
SIGNATURE	45

i

PART 1—FINANCIAL INFORMATION

Item 1—Financial Statements

HORNBECK OFFSHORE SERVICES, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(In thousands, except per share data)

	June 30, 2018			December 31, 2017
	(Unaudited)
ASSETS
Current assets:
Cash and cash equivalents	$	109,065		$	186,849
Accounts receivable, net of allowance for doubtful accounts of $6,103 and $6,054, respectively	57,073			44,702
Other current assets	16,006			16,890
Total current assets	182,144			248,441
Property, plant and equipment, net	2,482,733			2,501,013
Deferred charges, net	17,846			12,812
Other assets	6,436			6,612
Total assets	$	2,689,159		$	2,768,878
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	19,615		$	16,196
Accrued interest	15,790			14,734
Accrued payroll and benefits	12,364			9,475
Other accrued liabilities	13,018			8,457
Total current liabilities	60,787			48,862
Long-term debt, including deferred gain of $17,457 and $18,911, and net of original issue discount of $5,822 and $7,862 and deferred financing costs of $8,452 and $10,134, respectively	1,083,094			1,080,826
Deferred tax liabilities, net	179,124			197,465
Other liabilities	2,522			3,801
Total liabilities	1,325,527			1,330,954
Stockholders’ equity:
Preferred stock: $0.01 par value; 5,000 shares authorized; no shares issued and outstanding	—			—
Common stock: $0.01 par value; 100,000 shares authorized; 37,595 and 37,144 shares issued and outstanding, respectively	376			371
Additional paid-in-capital	760,939			760,278
Retained earnings	604,855			668,598
Accumulated other comprehensive income (loss)	(2,538		)	8,677
Total stockholders’ equity	1,363,632			1,437,924
Total liabilities and stockholders’ equity	$	2,689,159		$	2,768,878

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

1

HORNBECK OFFSHORE SERVICES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share data)

	Three Months Ended    June 30,						Six Months Ended   June 30,
	2018			2017			2018			2017
	(Unaudited)						(Unaudited)
Revenues:
Vessel revenues	$	49,481		$	29,339		$	82,615		$	65,188
Non-vessel revenues	8,950			8,087			17,403			16,317
	58,431			37,426			100,018			81,505
Costs and expenses:
Operating expenses	34,858			31,368			70,827			59,303
Depreciation	24,630			24,679			49,278			49,356
Amortization	2,256			3,266			4,248			6,990
General and administrative expenses	12,246			9,432			25,121			23,674
	73,990			68,745			149,474			139,323
Gain (loss) on sale of assets	(13		)	1			30			19
Operating loss	(15,572		)	(31,318		)	(49,426		)	(57,799		)
Other income (expense):
Gain on early extinguishment of debt	—			15,478			—			15,478
Interest income	519			464			1,163			865
Interest expense	(16,401		)	(13,429		)	(30,346		)	(27,238		)
Other income (expense), net	(72		)	54			(63		)	(269		)
	(15,954		)	2,567			(29,246		)	(11,164		)
Loss before income taxes	(31,526		)	(28,751		)	(78,672		)	(68,963		)
Income tax benefit	(6,438		)	(9,262		)	(14,929		)	(21,576		)
Net loss	$	(25,088	)	$	(19,489	)	$	(63,743	)	$	(47,387	)
Loss per share:
Basic loss per common share	$	(0.67	)	$	(0.53	)	$	(1.70	)	$	(1.29	)
Diluted loss per common share	$	(0.67	)	$	(0.53	)	$	(1.70	)	$	(1.29	)
Weighted average basic shares outstanding	37,496			36,769			37,419			36,683
Weighted average diluted shares outstanding	37,496			36,769			37,419			36,683

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

2

HORNBECK OFFSHORE SERVICES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(In thousands)

	Three Months Ended    June 30,						Six Months Ended   June 30,
	2018			2017			2018			2017
	(Unaudited)						(Unaudited)
Net loss	$	(25,088	)	$	(19,489	)	$	(63,743	)	$	(47,387	)
Other comprehensive income (loss):
Foreign currency translation loss	(10,916		)	(2,976		)	(11,215		)	(1,207		)
Total comprehensive loss	$	(36,004	)	$	(22,465	)	$	(74,958	)	$	(48,594	)

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

3

HORNBECK OFFSHORE SERVICES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

	Six Months Ended   June 30,
	2018			2017
	(Unaudited)
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$	(63,743	)	$	(47,387	)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation	49,278			49,356
Amortization	4,248			6,990
Stock-based compensation expense	4,753			3,014
Gain on early extinguishment of debt	—			(15,478		)
Provision for bad debts	49			4,032
Deferred tax benefit	(15,360		)	(24,243		)
Amortization of deferred financing costs	2,217			6,137
Gain on sale of assets	(30		)	(19		)
Changes in operating assets and liabilities:
Accounts receivable	(19,639		)	(6,199		)
Other current and long-term assets	1,038			(3,127		)
Deferred drydocking charges	(3,351		)	(5,955		)
Accounts payable	9,427			9,124
Accrued liabilities and other liabilities	2,405			631
Accrued interest	1,055			(1,002		)
Net cash used in operating activities	(27,653		)	(24,126		)
CASH FLOWS FROM INVESTING ACTIVITIES:
Costs incurred for acquisition of offshore supply vessels	(40,868		)	—
Costs incurred for OSV newbuild program	(2,757		)	(7,063		)
Net proceeds from sale of assets	57			33
Vessel capital expenditures	(5,482		)	(485		)
Non-vessel capital expenditures	(81		)	(548		)
Net cash used in investing activities	(49,131		)	(8,063		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from Credit Facility	—			980
Repurchase of senior notes due 2020	—			(5,057		)
Repurchase of convertible notes	—			(49,631		)
Deferred financing costs	—			(5,636		)
Shares withheld for payment of employee withholding taxes	(536		)	(573		)
Net cash proceeds from other shares issued	260			258
Net cash used in financing activities	(276		)	(59,659		)
Effects of exchange rate changes on cash	(724		)	(396		)
Net decrease in cash and cash equivalents	(77,784		)	(92,244		)
Cash and cash equivalents at beginning of period	186,849			217,027
Cash and cash equivalents at end of period	$	109,065		$	124,783
SUPPLEMENTAL DISCLOSURES OF CASH FLOW ACTIVITIES:
Cash paid for interest	$	29,304		$	26,199
Cash paid for income taxes	$	650		$	710
SUPPLEMENTAL DISCLOSURES OF NON-CASH FINANCING ACTIVITIES:
Exchange of convertible notes for first-lien term loan	$	—		$	127,096

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

4

HORNBECK OFFSHORE SERVICES, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

1. Basis of Presentation

The accompanying unaudited consolidated financial statements do not include certain information and footnote disclosures required by United States generally accepted accounting principles, or GAAP. The interim financial statements and notes are presented as permitted by instructions to the Quarterly Report on Form 10-Q and Article 10 of Regulation S-X. In the opinion of management, all adjustments necessary for a fair presentation of the interim financial statements have been included and consist only of normal recurring items. The unaudited quarterly financial statements should be read in conjunction with the audited financial statements and notes thereto included in the Annual Report on Form 10-K of Hornbeck Offshore Services, Inc. (together with its subsidiaries, the “Company”) for the year ended December 31, 2017. The results of operations for the three and six months ended June 30, 2018 are not necessarily indicative of the results that may be expected for the year ending December 31, 2018.

The consolidated balance sheet at December 31, 2017 has been derived from the audited consolidated financial statements at that date, but does not include all of the information and footnotes required by GAAP for complete financial statements.

2. Recent Accounting Pronouncements

Standard	Description	Required Date of Adoption	Effect on the financial statements and other significant matters
Standards that have been adopted
ASU No. 2014-09, "Revenue from Contracts with Customers" (Topic 606)	This standard requires entities to recognize revenues in a way that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration which the entity expects to be entitled to in exchange for those goods or services. ASU 2014-09 requires retrospective application.	January 1, 2018	This ASU replaces most existing revenue recognition guidance in U.S. GAAP. The Company adopted ASU 2014-09 on January 1, 2018 under the modified retrospective method. Based on the Company's review of its open revenue-related contracts on the date of adoption, it was determined that there was no cumulative effect of applying the new standard and therefore no adjustment to the opening retained earnings balance was needed as of January 1, 2018. See Note 3 - Revenues from Contracts with Customers for additional information.
ASU No. 2017-01, "Business Combinations" (Topic 805): Clarifying the Definition of a Business	This standard provides guidance to assist entities with evaluating when a set of transferred assets and activities is a business. ASU 2017-01 requires prospective application.	January 1, 2018	The Company adopted ASU No. 2017-01 on January 1, 2018 under the prospective application. This adoption had no impact on its consolidated financial statements.

Standards that have not been adopted
ASU No. 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments"	This standard requires measurement and recognition of expected credit losses for financial assets held. ASU No. 2016-13 requires modified retrospective application. Early adoption is permitted.	January 1, 2020	The Company believes that the implementation of this new guidance will not have a material impact on its consolidated financial statements.
ASU No. 2016-02, "Leases" (Topic 842)	This standard requires lessees to recognize a lease liability and a right-of-use asset for all leases (with the exception of short-term leases) at the commencement date. ASU 2016-02 requires a modified retrospective application. Early adoption is permitted.	January 1, 2019	The Company continues to evaluate the impact this new guidance will have on its consolidated financial statements. See further discussion below.
ASU No. 2018-02, "Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income"	This standard allows companies to reclassify items in accumulated other comprehensive income to retained earnings for stranded tax effects resulting form The Tax Cuts and Jobs Act.	January 1, 2019	The Company continues to evaluate the impact this new guidance will have on its consolidated financial statements.
ASU No. 2018-11, "Leases" (Topic 842): Targeted Improvements	This standard provides for the election of transition methods between the modified retrospective method and the optional transition relief method. The modified retrospective method is applied to all prior reporting periods presented with a cumulative-effect adjustment recorded in the earliest comparative period while the optional transition relief method is applied beginning in the period of adoption with a cumulative-effect adjustment recorded in such period. Also, this standard allows lessors to elect to not separate non-lease components from the associated lease components if certain criteria are met.	January 1, 2019	The Company continues to evaluate the impact this new guidance will have on its consolidated financial statements. See further discussion below.

ASC 842, Leases

Lessor Accounting

In July 2018, the Financial Accounting Standards Board, or FASB, issued ASU 2018-11 that allows for 1) a transition option that will allow companies to not apply the new lease standard in the comparative periods presented in their financial statements in the year of adoption and will allow the Company to continue to apply legacy guidance, ASC 840 Leases, including its disclosure requirements, for comparative periods presented, and 2) an option for lessors to combine lease and non-lease components contained within the same agreement when certain criteria are met. The Company does not expect a change in the timing or amounts of revenues recognized upon the adoption of this standard.

Lessee Accounting

The primary difference between current accounting standards and ASC 842 is the recognition of right-of-use assets and corresponding liabilities by lessees for those leases classified as operating leases under current accounting standards. The estimated impact of the adoption of this ASC based on the lease arrangements for

which the Company is the lessee as of June 30, 2018, will be an increase to assets and liabilities on the Company's financial statements to reflect the right-of-use assets and lease obligations in a range from $27.0

million to $30.0 million. The adoption of the new standard is not expected to result in a change in the amount of lease expense currently being recognized.

3. Revenues from Contracts with Customers

Effective January 1, 2018, the Company adopted ASU 2014-09, Revenue from Contracts with Customers using the modified retrospective method. The adoption of this standard did not have a material impact on the Company's financial position or results of operations. Accordingly, the Company did not make an adjustment to the opening balance of retained earnings in order to account for the implementation of the new requirements of this standard, and it did not restate prior period information for the effects of the new standard.

The services that are provided by the Company represent a single performance obligation under our contracts that are satisfied at a point in time or over time. Revenues are earned primarily by (1) chartering the Company's vessels, including operation of such vessels, (2) providing vessel management services to third party vessel owners, and (3) providing shore-based port facility services, including rental of land. These revenue streams are provided to customers based upon contracts that include fixed or determinable prices and do not generally include right of return or other significant post-delivery obligations. The Company's vessel revenues, vessel management revenues and port facility revenues are recognized either at a point in time or over the passage of time when the customer has received or is receiving the benefit from the applicable service. Revenues are recognized when the performance obligations are satisfied in accordance with contractual terms and in an amount that reflects the consideration that the Company expects to be entitled to in exchange for the services rendered or rentals provided. Revenues are recognized net of any taxes collected from customers, which are subsequently remitted to governmental authorities. Invoices are typically billed to our customers on a monthly basis and payment terms on customer invoices typically range 30 to 60 days.

A performance obligation under contracts with the Company's customers to render services is the unit of account under Topic 606. The Company accounts for services rendered separately if they are distinct and the service is separately identifiable from other items provided to a customer and if a customer can benefit from the services rendered provided on its own or with other resources that are readily available to the customer. A contract's transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied.

As of June 30, 2018, the Company has certain remaining performance obligations representing contracted vessel revenues for which work has not been performed and such contracts have an original expected duration of more than one year. As of June 30, 2018, the aggregate amount of the transaction price allocated to remaining performance obligations for such contracts was $16.4 million, of which $15.8 million and $0.6 million are expected to be recognized in 2018 and 2019, respectively. The Company has elected to apply the optional exemption for the disclosure of the remaining performance obligations for any of its revenue streams that are expected to have a duration of one year or less and, therefore, such amounts have not been disclosed.

5

HORNBECK OFFSHORE SERVICES, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

Disaggregation of Revenues

For the three and six months ended June 30, 2018 and 2017, the Company recognized revenues as follows (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Vessel revenues	$	49,481	$	29,339	$	82,615	$	65,188
Vessel management revenues	7,974		7,320		15,733		14,773
Shore-based facility revenues	976		767		1,670		1,544
	$	58,431	$	37,426	$	100,018	$	81,505

4. Loss Per Share

Basic loss per common share was calculated by dividing net loss by the weighted average number of common shares outstanding during the period. Diluted loss per common share was calculated by dividing net loss by the weighted average number of common shares outstanding during the year plus the effect of dilutive stock options and restricted stock unit awards. When reporting a net loss, the Company uses weighted average basic shares outstanding to calculate diluted earnings per share. Weighted average number of common shares outstanding was calculated by using the sum of the shares determined on a daily basis divided by the number of days in the period. The table below reconciles the Company’s loss per share (in thousands, except for per share data): 

	Three Months Ended    June 30,						Six Months Ended   June 30,
	2018			2017			2018			2017
Net loss	$	(25,088	)	$	(19,489	)	$	(63,743	)	$	(47,387	)
Weighted average number of shares of common stock outstanding	37,496			36,769			37,419			36,683
Add: Net effect of dilutive stock options and unvested restricted stock (1)(2)(3)	—			—			—			—
Weighted average number of dilutive shares of common stock outstanding	37,496			36,769			37,419			36,683
Loss per common share:
Basic loss per common share	$	(0.67	)	$	(0.53	)	$	(1.70	)	$	(1.29	)
Diluted loss per common share	$	(0.67	)	$	(0.53	)	$	(1.70	)	$	(1.29	)

(1) Due to a net loss, the Company excluded from the calculation of loss per share the effect of equity awards representing the rights to acquire 529 and 639 shares of common stock for the three and six months ended June 30, 2018 and 992 and 988 shares of common stock for the three and six months ended June 30, 2017, respectively.

(2) For the six months ended June 30, 2018 and 2017, the 2019 convertible senior notes were not dilutive, as the average price of the Company’s stock was less than the effective conversion price of such notes. It is the Company's stated intention to redeem the principal amount of its 2019 convertible senior notes in cash and the Company has used the treasury method for determining potential dilution in the diluted earnings per share computation.

(3) Dilutive unvested restricted stock units are expected to fluctuate from quarter to quarter depending on the Company’s performance compared to a predetermined set of performance criteria. See Note 7 to these financial statements for further information regarding certain of the Company’s restricted stock grants.

5. Property, Plant and Equipment

Asset Impairment Assessment

In accordance with ASC 360, the Company periodically reviews long-lived asset valuations when events or changes in circumstances indicate that an asset’s carrying value may not be recoverable. If indicators of impairment exist, the Company assesses the recoverability of its long-lived assets by comparing the projected future undiscounted cash flows associated with the related long-lived asset group over their remaining estimated useful lives. If the sum of the estimated undiscounted cash flows are less than the carrying amounts of the asset group, the assets are written down to their estimated fair values based on the expected discounted

6

HORNBECK OFFSHORE SERVICES, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

future cash flows or appraised values attributable to the assets. The future cash flows are subjective and are based on the Company’s current assumptions regarding future dayrates, utilization, operating expense, G&A expense and recertification costs that could differ from actual results.

During the second quarter of 2016, the Company determined that it observed indicators of impairment related to its vessels. This resulted from the rapid deterioration of its second quarter 2016 operating results, as well as the uncertainty regarding future market conditions and the related impact on the Company's projected operating results. For the purposes of calculating the undiscounted cash flows, the Company grouped its vessels into two groups, OSVs and MPSVs, and used a probability-weighted undiscounted cash flow projection to test for recoverability. After reviewing the results of this calculation, the Company determined that each of its asset groups had sufficient projected undiscounted cash flows to recover the remaining book value of the Company's long-lived assets within such groups. While the Company has not observed any new impairment indicators since the second quarter of 2016, the Company has reviewed and updated, as necessary, the assumptions used in determining its undiscounted cash flow projections for each asset group to reflect current market conditions. After reviewing the results of these updated projections, the Company determined that each of its asset groups continue to have sufficient projected undiscounted cash flows to recover the remaining book value of the Company's long-lived assets within such group.

6. Long-Term Debt

As of the dates indicated, the Company had the following outstanding long-term debt (in thousands):

	June 30, 2018		December 31, 2017
5.875% senior notes due 2020, net of deferred financing costs of $1,611 and $2,061	$	365,331	$	364,881
5.000% senior notes due 2021, net of deferred financing costs of $2,657 and $3,142	447,343		446,858
1.500% convertible senior notes due 2019, net of original issue discount of $4,707 and $6,634 and deferred financing costs of $1,055 and $1,486	93,885		91,527
First-lien credit facility due 2023, including deferred gain of $17,457 and $18,911, and net of original issue discount of $1,115 and $1,228, and deferred financing costs of $3,129 and $3,445	176,535		177,560
	$	1,083,094	$	1,080,826

The table below summarizes the Company's cash interest payments (in thousands):

	Cash Interest Payments		Payment Dates
5.875% senior notes due 2020	$	10,779	April 1 and October 1
5.000% senior notes due 2021	11,250		March 1 and September 1
1.500% convertible senior notes due 2019	747		March 1 and September 1
First-lien credit facility due 2023 (1)	1,202		Variable

(1) The interest rate on the Credit Facility is variable based on the Company's election. The amount reflected in this table is the monthly amount payable based on the 30-day LIBOR interest rate that was elected and in effect on June 30, 2018. Please see further discussion of the variable interest rate below.

First-Lien Credit Facility

The Company's $300 million first-lien credit facility, or Credit Facility, matures in June 2023 and currently provides for $136.7 million of additional available liquidity, $68.0 million of which is required to be drawn by December 31, 2018 with the remaining balance required to be drawn by September 1, 2019. The Company can use draws under the facility for working capital and general corporate purposes, including the acquisition of distressed assets and/or the refinancing of existing debt, subject to, among other things, compliance with certain covenants requiring the Company to maintain access to liquidity (cash and credit availability) of $25.0 million at all times. The minimum liquidity level required for prepayment of the Company’s existing

7

HORNBECK OFFSHORE SERVICES, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

indebtedness and/or certain other restricted payments is $65.0 million. The Credit Facility is collateralized by 55 domestic high-spec OSVs and MPSVs, including a security interest in two pending MPSV newbuilds, and associated personalty, as well as by certain deposit and securities accounts. Borrowings accrue interest, at the Company’s option, at either an adjusted London Interbank Offered Rate (subject to a 1.00% floor) plus an applicable margin or the greatest of (a) the prime rate announced by The Wall Street Journal, (b) the Federal Funds Effective Rate in effect on such day plus 1/2 of 1%, and (c) the London Interbank Offered Rate plus, 1%, plus, an applicable a margin.

On March 27, 2018, the Company entered into an amendment with its first-lien lenders to clarify various provisions in and made certain technical revisions to the Credit Facility, primarily dealing with the administerial permissabilities regarding vessel reflagging transactions and permitted acquisition indebtedness, among other matters.

The agreement governing the Credit Facility and the indentures governing the Company's 2020 senior notes and 2021 senior notes impose certain restrictions on the Company. Such restrictions affect, and in many cases limit or prohibit, among other things, the Company's ability to incur additional indebtedness, make capital expenditures, redeem equity, create liens, sell assets and make dividend or other restricted payments.

The Company estimates the fair value of its 2020 senior notes, 2021 senior notes, 2019 convertible senior notes and Credit Facility by primarily using quoted market prices. Given the observability of the inputs to these estimates, the Company has assigned a Level 2 of the three-level valuation hierarchy for such outstanding notes.

As of the dates indicated below, the Company had the following face values, carrying values and fair values (in thousands):

	June 30, 2018						December 31, 2017
	Face Value		Carrying Value		Fair Value		Face Value		Carrying Value		Fair Value
5.875% senior notes due 2020	$	366,942	$	365,331	$	274,289	$	366,942	$	364,881	$	244,714
5.000% senior notes due 2021	450,000		447,343		295,313		450,000		446,858		236,250
1.500% convertible senior notes due 2019	99,647		93,885		77,167		99,647		91,527		74,486
First-lien credit facility due 2023 (1)	163,322		176,535		162,718		163,322		177,560		162,505
	$	1,079,911	$	1,083,094	$	809,487	$	1,079,911	$	1,080,826	$	717,955

(1) The carrying value of the Credit Facility due 2023 includes a deferred gain of $17,457 less original issue discount and deferred financing costs of $4,244.

Capitalized Interest

During the three months ended June 30, 2018, the Company did not capitalize any of its interest costs. During the six months ended June 30, 2018, the Company capitalized approximately $2.3 million of interest costs related to the construction of vessels. During the three and six months ended June 30, 2017, the Company capitalized approximately $2.5 million and $4.9 million, respectively, of interest costs related to the construction of vessels.

7. Incentive Compensation

Stock-Based Incentive Compensation Plan

The Company’s stock-based incentive compensation plan covers a maximum of 4.95 million shares of common stock that allows the Company to grant restricted stock awards, restricted stock unit awards, or collectively restricted stock, stock options, stock appreciation rights and fully-vested common stock to

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

employees and directors. As of June 30, 2018, the Company has granted awards covering 4.68 million shares of common stock under such plan.

During the six months ended June 30, 2018, the Company granted 1,527,102 time-based and 939,391 performance-based phantom restricted stock units. The phantom shares to be received under the performance-based phantom restricted stock units are calculated based on the Company's performance compared to two pre-determined criteria, as defined by the phantom restricted stock unit agreements governing such awards. The actual number of shares that could be received by the award recipients can range from 0% to 150% of the awards granted depending on the Company's performance.

The fair value of the Company’s performance-based phantom restricted stock units, which is the stock price on the date of grant, is applied to the total shares that are expected to fully vest and is amortized over the vesting period, which is generally three years, based on the Company’s internal performance measured against the pre-determined criteria, as applicable. The compensation expense related to time-based phantom restricted stock units are amortized over a vesting period of up to three years, as applicable, and is determined based on the market price of the Company’s stock on the date of grant applied to the total shares that are expected to fully vest. All phantom restricted stock units are re-measured quarterly and classified as a liability, due to the settlement of these awards in cash. In addition to the phantom restricted stock units granted in 2018, the Company granted performance-based and time-based restricted stock units and phantom restricted stock units in prior years. During the six months ended June 30, 2018, the Company issued 426,896 shares of common stock due to vestings of restricted stock units and employee purchases under the Company's Employee Stock Purchase Plan.

The impact of stock-based compensation expense charges on the Company’s operating results are reflected in the table below (in thousands, except for per share data):

	Three Months Ended    June 30,				Six Months Ended   June 30,
	2018		2017		2018		2017
Loss before income taxes	$	1,885	$	972	$	4,753	$	3,014
Net loss	$	1,500	$	659	$	3,850	$	2,071
Earnings per common share:
Basic earnings per common share	$	0.04	$	0.02	$	0.10	$	0.06
Diluted earnings per common share	$	0.04	$	0.02	$	0.10	$	0.06

8. Commitments and Contingencies

Vessel Construction

During the first quarter of 2018, the Company notified the shipyard that it was terminating the construction contracts for the final two vessels in the Company's fifth OSV newbuild program due to performance issues at the shipyard. The Company is working with the issuer of the shipyard's performance bonds in order to complete the construction of the vessels at a completion yard. The cost of this nearly completed 24-vessel newbuild program, before construction period interest, is expected to be approximately $1,335.0 million, of which $17.0 million, and $44.8 million are currently expected to be incurred in the remainder of 2018 and fiscal 2019, respectively. However, the timing of these remaining construction draws remains subject to change commensurate with any potential further delays in the delivery dates of the final two newbuild vessels. From the inception of this program through June 30, 2018, the Company had incurred $1,273.2 million, or 95.4%, of total expected project costs.

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

Vessel Acquisitions

On May 18, 2018, the Company completed the acquisition of four high-spec Jones Act-qualified OSVs and related equipment from Aries Marine Corporation and certain of its affiliates for $40.9 million in cash, inclusive of $4.0 million related to a non-compete intangible asset that will be amortized over the life of such asset, or two years. Also included in this transaction was the cost of fuel and lube inventory and transactions fees. The acquired vessels are all U.S.-flagged and are comprised of two 300 class OSVs and two 280 class OSVs. The Company determined that substantially all of the fair value of the assets acquired are concentrated in a group of similar identifiable assets and, therefore, has accounted for such transaction as an asset acquisition under ASU 2017-01.

Contingencies

In the normal course of its business, the Company becomes involved in various claims and legal proceedings in which monetary damages are sought. It is management's opinion that the Company's liability, if any, under such claims or proceedings would not materially affect the Company's financial position or results of operations. The Company insures against losses relating to its vessels, pollution and third party liabilities, including claims by employees under Section 33 of the Merchant Marine Act of 1920, or the Jones Act. Third party liabilities and pollution claims that relate to vessel operations are covered by the Company’s entry in a mutual protection and indemnity association, or P&I Club, as well as by marine liability policies in excess of the P&I Club’s coverage. The Company provides reserves for any individual claim deductibles for which the Company remains responsible by using an estimation process that considers Company-specific and industry data, as well as management’s experience, assumptions and consultation with outside counsel. As additional information becomes available, the Company will assess the potential liability related to its pending claims and revise its estimates. Although historically revisions to such estimates have not been material, changes in estimates of the potential liability could materially impact the Company’s results of operations, financial position or cash flows.

9. Other Accrued Liabilities

Other accrued liabilities include the following (in thousands):

	June 30, 2018		December 31, 2017
Accrued lease expense	$	5,278	$	5,142
Deferred revenues	2,122		460
Other	5,618		2,855
Total	$	13,018	$	8,457

10. Income Taxes

The Tax Cuts and Jobs Act, or the Act, was signed into law on December 22, 2017. The primary impact of this legislation was a reduction of the U.S. federal corporate tax rate from 35% to 21% generally effective January 1, 2018. As of December 31, 2017, the Company included in its income tax benefit rate a preliminary estimate related to executive compensation, alternative minimum tax refundable credits, taxation in its foreign jurisdictions, and re-measurement of its deferred taxes. As of June 30, 2018, the Company has not identified or recorded any revisions to its provisional amounts and has not completed its accounting for the tax effects of enactment of the Act; however, in certain cases, as described below, the Company made reasonable estimates of the effects and recorded provisional amounts. The Company's provisional estimates on Global Intangible Low Taxed Income, Foreign Derived Intangible Income, Base Erosion and Anti-Abuse, and the IRC Section 163(j) interest limitation did not materially impact its effective tax benefit rate for the three months ended June

10

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

30, 2018. The Company will continue to refine its calculations as additional tax guidance becomes available and its internal analysis is completed. The accounting for the tax effects of the Act will be completed in 2018 as allowed under Staff Accounting Bulletin 118, which was issued by the Securities and Exchange Commission on December 22, 2017.

The effective tax benefit rate for the six months ended June 30, 2018 and 2017 was 19.0% and 31.3%, respectively. The lower benefit rate for the quarter ended June 30, 2018 was primarily due to the reduction of the statutory corporate income tax rate from 35% to 21% resulting from the Act. In addition, the Company established valuation allowances in 2017 for foreign tax credit carryforwards based upon management's conclusion that it is more likely than not such losses and credits will not be realized by their expiration dates.

11. Condensed Consolidating Financial Statements of Guarantors

The following tables present the condensed consolidating balance sheets as of June 30, 2018 and December 31, 2017, the condensed consolidating statements of operations, the condensed consolidating statements of comprehensive income (loss) and condensed consolidating statements of cash flows for the six months endedJune 30, 2018 and 2017, respectively, for the domestic subsidiaries of the Company that serve as co-borrower and/or guarantors of the Company's 2019 convertible senior notes, 2020 senior notes, 2021 senior notes and the Credit Facility, as well as the financial results for the Company's subsidiaries that do not serve as guarantors. The co-borrower and/or guarantor subsidiaries of the 2019 convertible senior notes, 2020 senior notes, 2021 senior notes and the Credit Facility are 100% owned, directly or indirectly, by Hornbeck Offshore Services, Inc. The guarantees are full and unconditional and joint and several. The non-guarantor subsidiaries of such notes include all of the Company's foreign subsidiaries.

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

Condensed Consolidating Balance Sheet

(In thousands, except per share data)

	As of June 30, 2018
	Parent		Guarantor Subsidiaries		Non-Guarantor Subsidiaries			Consolidating			Consolidated
ASSETS
Current assets:
Cash and cash equivalents	$	7	$	103,862	$	5,196		$	—		$	109,065
Accounts receivable, net of allowance for doubtful accounts of $6,103	—		51,970		5,188			(85		)	57,073
Other current assets	53		14,866		1,087			—			16,006
Total current assets	60		170,698		11,471			(85		)	182,144
Property, plant and equipment, net	—		2,285,189		197,544			—			2,482,733
Deferred charges, net	—		15,967		1,879			—			17,846
Intercompany receivable	1,782,674		758,505		220,164			(2,761,343		)	—
Investment in subsidiaries	721,406		8,602		—			(730,008		)	—
Other assets	—		5,890		546			—			6,436
Total assets	$	2,504,140	$	3,244,851	$	431,604		$	(3,491,436	)	$	2,689,159
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	—	$	18,657	$	958		$	—		$	19,615
Accrued interest	15,790		—		—			—			15,790
Accrued payroll and benefits	—		11,712		652			—			12,364
Other accrued liabilities	—		12,555		548			(85		)	13,018
Total current liabilities	15,790		42,924		2,158			(85		)	60,787
Long-term debt, including deferred gain of $17,457, and net of original issue discount of $5,822 and deferred financing costs of $8,452	1,083,094		—		—			—			1,083,094
Deferred tax liabilities, net	—		177,433		1,691			—			179,124
Intercompany payables	39,509		2,264,292		466,567			(2,770,368		)	—
Other liabilities	—		2,479		43			—			2,522
Total liabilities	1,138,393		2,487,128		470,459			(2,770,453		)	1,325,527
Stockholders’ equity:
Preferred stock: $0.01 par value; 5,000 shares authorized; no shares issued and outstanding	—		—		—			—			—
Common stock: $0.01 par value; 100,000 shares authorized; 37,595 shares issued and outstanding	376		—		—			—			376
Additional paid-in capital	760,939		37,978		8,602			(46,580		)	760,939
Retained earnings	604,432		719,745		(44,919		)	(674,403		)	604,855
Accumulated other comprehensive loss	—		—		(2,538		)	—			(2,538		)
Total stockholders’ equity	1,365,747		757,723		(38,855		)	(720,983		)	1,363,632
Total liabilities and stockholders’ equity	$	2,504,140	$	3,244,851	$	431,604		$	(3,491,436	)	$	2,689,159

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

Condensed Consolidating Balance Sheet

(In thousands, except per share data)

	As of December 31, 2017
	Parent		Guarantor Subsidiaries		Non-Guarantor Subsidiaries			Consolidating			Consolidated
ASSETS
Current assets:
Cash and cash equivalents	$	4	$	178,746	$	8,099		$	—		$	186,849
Accounts receivable, net of allowance for doubtful accounts of $6,054	—		40,407		4,295			—			44,702
Other current assets	29		16,051		810			—			16,890
Total current assets	33		235,204		13,204			—			248,441
Property, plant and equipment, net	—		2,379,097		121,916			—			2,501,013
Deferred charges, net	—		11,408		1,404			—			12,812
Intercompany receivable	1,778,711		648,920		39,445			(2,467,076		)	—
Investment in subsidiaries	790,734		8,602		—			(799,336		)	—
Other assets	—		5,984		628			—			6,612
Total assets	$	2,569,478	$	3,289,215	$	176,597		$	(3,266,412	)	$	2,768,878
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	—	$	15,643	$	553		$	—		$	16,196
Accrued interest	14,734		—		—			—			14,734
Accrued payroll and benefits	—		8,458		1,017			—			9,475
Other accrued liabilities	—		8,129		328			—			8,457
Total current liabilities	14,734		32,230		1,898			—			48,862
Long-term debt, including deferred gain of $18,911, and net of original issue discount of $7,862 and deferred financing costs of $10,134	1,080,826		—		—			—			1,080,826
Deferred tax liabilities, net	—		192,793		4,672			—			197,465
Intercompany payables	140,019		2,240,832		190,177			(2,571,028		)	—
Other liabilities	—		3,802		(1		)	—			3,801
Total liabilities	1,235,579		2,469,657		196,746			(2,571,028		)	1,330,954
Stockholders’ equity:
Preferred stock: $0.01 par value; 5,000 shares authorized; no shares issued and outstanding	—		—		—			—			—
Common stock: $0.01 par value; 100,000 shares authorized; 37,144 shares issued and outstanding	371		—		—			—			371
Additional paid-in capital	758,690		37,975		8,602			(44,989		)	760,278
Retained earnings	574,838		781,583		(37,428		)	(650,395		)	668,598
Accumulated other comprehensive income	—		—		8,677			—			8,677
Total stockholders’ equity	1,333,899		819,558		(20,149		)	(695,384		)	1,437,924
Total liabilities and stockholders’ equity	$	2,569,478	$	3,289,215	$	176,597		$	(3,266,412	)	$	2,768,878

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

Condensed Consolidating Statement of Operations

(In thousands)

	Three Months Ended June 30, 2018
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating		Consolidated
Revenues	$	—		$	57,963		$	468		$	—	$	58,431
Costs and expenses:
Operating expenses	—			32,209			2,649			—		34,858
Depreciation	—			22,874			1,756			—		24,630
Amortization	—			1,939			317			—		2,256
General and administrative expenses	82			11,456			708			—		12,246
	82			68,478			5,430			—		73,990
Loss on sale of assets	—			(13		)	—			—		(13		)
Operating loss	(82		)	(10,528		)	(4,962		)	—		(15,572		)
Other income (expense):
Interest income	—			457			62			—		519
Interest expense	(16,401		)	—			—			—		(16,401		)
Equity in earnings (losses) of consolidated subsidiaries	(8,605		)	—			—			8,605		—
Other income (expense), net	—			(2,036		)	1,964			—		(72		)
	(25,006		)	(1,579		)	2,026			8,605		(15,954		)
Income (loss) before income taxes	(25,088		)	(12,107		)	(2,936		)	8,605		(31,526		)
Income tax expense (benefit)	—			(6,555		)	117			—		(6,438		)
Net income (loss)	$	(25,088	)	$	(5,552	)	$	(3,053	)	$	8,605	$	(25,088	)

Condensed Consolidating Statement of Comprehensive Income (Loss)

(In thousands)

	Three Months Ended June 30, 2018
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating		Consolidated
Net income (loss)	$	(25,088	)	$	(5,552	)	$	(3,053	)	$	8,605	$	(25,088	)
Other comprehensive income:
Foreign currency translation loss	—			—			(10,916		)	—		(10,916		)
Total comprehensive income (loss)	$	(25,088	)	$	(5,552	)	$	(13,969	)	$	8,605	$	(36,004	)

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HORNBECK OFFSHORE SERVICES, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

Condensed Consolidating Statement of Operations

(In thousands)

	Six Months Ended June 30, 2018
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating			Consolidated
Revenues	$	—		$	98,278		$	1,797		$	(57	)	$	100,018
Costs and expenses:
Operating expenses	—			66,194			4,687			(54		)	70,827
Depreciation	—			46,180			3,098			—			49,278
Amortization	—			3,738			510			—			4,248
General and administrative expenses	138			23,825			1,161			(3		)	25,121
	138			139,937			9,456			(57		)	149,474
Gain on sale of assets	—			30			—			—			30
Operating loss	(138		)	(41,629		)	(7,659		)	—			(49,426		)
Other income (expense):
Interest income	—			1,026			137			—			1,163
Interest expense	(30,346		)	—			—			—			(30,346		)
Equity in earnings (losses) of consolidated subsidiaries	(33,259		)	—			—			33,259			—
Other income (expense), net	—			(20		)	(43		)	—			(63		)
	(63,605		)	1,006			94			33,259			(29,246		)
Income (loss) before income taxes	(63,743		)	(40,623		)	(7,565		)	33,259			(78,672		)
Income tax expense (benefit)	—			(14,854		)	(75		)	—			(14,929		)
Net income (loss)	$	(63,743	)	$	(25,769	)	$	(7,490	)	$	33,259		$	(63,743	)

Condensed Consolidating Statement of Comprehensive Income (Loss)

(In thousands)

	Six Months Ended June 30, 2018
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating		Consolidated
Net income (loss)	$	(63,743	)	$	(25,769	)	$	(7,490	)	$	33,259	$	(63,743	)
Other comprehensive income:
Foreign currency translation gain (loss)	—			—			(11,215		)	—		(11,215		)
Total comprehensive income (loss)	$	(63,743	)	$	(25,769	)	$	(18,705	)	$	33,259	$	(74,958	)

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HORNBECK OFFSHORE SERVICES, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

Condensed Consolidating Statement of Operations

(In thousands)

	Three Months Ended June 30, 2017
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating			Consolidated
Revenues	$	—		$	36,325		$	1,406		$	(305	)	$	37,426
Costs and expenses:
Operating expenses	—			28,337			3,338			(307		)	31,368
Depreciation	—			23,368			1,311			—			24,679
Amortization	—			2,903			363			—			3,266
General and administrative expenses	74			8,734			633			(9		)	9,432
	74			63,342			5,645			(316		)	68,745
Gain on sale of assets	—			1			—			—			1
Operating income (loss)	(74		)	(27,016		)	(4,239		)	11			(31,318		)
Other income (expense):
Gain on early extinguishment of debt	15,478			—			—			—			15,478
Interest income	—			363			101			—			464
Interest expense	(13,429		)	—			—			—			(13,429		)
Equity in earnings (losses) of consolidated subsidiaries	(21,464		)	—			—			21,464			—
Other income (expense), net	—			1,023			(958		)	(11		)	54
	(19,415		)	1,386			(857		)	21,453			2,567
Income (loss) before income taxes	(19,489		)	(25,630		)	(5,096		)	21,464			(28,751		)
Income tax expense (benefit)	—			(9,611		)	349			—			(9,262		)
Net income (loss)	$	(19,489	)	$	(16,019	)	$	(5,445	)	$	21,464		$	(19,489	)

Condensed Consolidating Statement of Comprehensive Income (Loss)

(In thousands)

	Three Months Ended June 30, 2017
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating		Consolidated
Net income (loss)	$	(19,489	)	$	(16,019	)	$	(5,445	)	$	21,464	$	(19,489	)
Other comprehensive income:
Foreign currency translation gain (loss)	—			—			(2,976		)	—		(2,976		)
Total comprehensive income (loss)	$	(19,489	)	$	(16,019	)	$	(8,421	)	$	21,464	$	(22,465	)

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HORNBECK OFFSHORE SERVICES, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

Condensed Consolidating Statement of Operations

(In thousands)

	Six Months Ended June 30, 2017
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating			Consolidated
Revenues	$	—		$	70,047		$	11,721		$	(263	)	$	81,505
Costs and expenses:
Operating expenses	—			52,866			6,704			(267		)	59,303
Depreciation	—			46,722			2,634			—			49,356
Amortization	—			6,215			775			—			6,990
General and administrative expenses	110			22,320			1,251			(7		)	23,674
	110			128,123			11,364			(274		)	139,323
Gain on sale of assets	—			18			1			—			19
Operating income (loss)	(110		)	(58,058		)	358			11			(57,799		)
Other income (expense):
Gain on early extinguishment of debt	15,478			—			—			—			15,478
Interest income	—			688			177			—			865
Interest expense	(27,238		)	—			—			—			(27,238		)
Equity in earnings (losses) of consolidated subsidiaries	(35,517		)	—			—			35,517			—
Other income(expense), net	—			3,646			(3,904		)	(11		)	(269		)
	(47,277		)	4,334			(3,727		)	35,506			(11,164		)
Income (loss) before income taxes	(47,387		)	(53,724		)	(3,369		)	35,517			(68,963		)
Income tax expense (benefit)	—			(22,095		)	519			—			(21,576		)
Net income (loss)	$	(47,387	)	$	(31,629	)	$	(3,888	)	$	35,517		$	(47,387	)

Condensed Consolidating Statement of Comprehensive Income (Loss)

(In thousands)

	Six Months Ended June 30, 2017
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating		Consolidated
Net income (loss)	$	(47,387	)	$	(31,629	)	$	(3,888	)	$	35,517	$	(47,387	)
Other comprehensive income:
Foreign currency translation gain (loss)	—			(149		)	(1,058		)	—		(1,207		)
Total comprehensive income (loss)	$	(47,387	)	$	(31,778	)	$	(4,946	)	$	35,517	$	(48,594	)

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HORNBECK OFFSHORE SERVICES, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

Condensed Consolidating Statement of Cash Flows

(In thousands)

	Six Months Ended June 30, 2018
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating		Consolidated
CASH FLOWS FROM OPERATING ACTIVITIES:
Net cash provided by (used in) operating activities	$	279		$	(26,825	)	$	(1,107	)	$	—	$	(27,653	)
CASH FLOWS FROM INVESTING ACTIVITIES:
Costs incurred for acquisition of offshore supply vessels	—			(40,868		)	—			—		(40,868		)
Costs incurred for OSV newbuild program #5	—			(2,757		)	—			—		(2,757		)
Net proceeds from sale of assets	—			57			—			—		57
Vessel capital expenditures	—			(4,394		)	(1,088		)	—		(5,482		)
Non-vessel capital expenditures	—			(97		)	16			—		(81		)
Net cash used in investing activities	—			(48,059		)	(1,072		)	—		(49,131		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Shares withheld for employee withholding taxes	(536		)	—			—			—		(536		)
Net cash proceeds from other shares issued	260			—			—			—		260
Net cash used in financing activities	(276		)	—			—			—		(276		)
Effects of exchange rate changes on cash	—			—			(724		)	—		(724		)
Net increase (decrease) in cash and cash equivalents	3			(74,884		)	(2,903		)	—		(77,784		)
Cash and cash equivalents at beginning of period	4			178,746			8,099			—		186,849
Cash and cash equivalents at end of period	$	7		$	103,862		$	5,196		$	—	$	109,065
SUPPLEMENTAL DISCLOSURES OF CASH FLOW ACTIVITIES:
Cash paid for interest	$	29,304		$	—		$	—		$	—	$	29,304
Cash paid for income taxes	$	—		$	426		$	224		$	—	$	650

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HORNBECK OFFSHORE SERVICES, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

Condensed Consolidating Statement of Cash Flows

(In thousands)

	Six Months Ended June 30, 2017
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating		Consolidated
CASH FLOWS FROM OPERATING ACTIVITIES:
Net cash provided by (used in) operating activities	$	59,666		$	(91,432	)	$	7,640		$	—	$	(24,126	)
CASH FLOWS FROM INVESTING ACTIVITIES:
Costs incurred for OSV newbuild program #5	—			(7,455		)	392			—		(7,063		)
Net proceeds from sale of assets	—			33			—			—		33
Vessel capital expenditures	—			(243		)	(242		)	—		(485		)
Non-vessel capital expenditures	—			(531		)	(17		)	—		(548		)
Net cash provided by (used in) investing activities	—			(8,196		)	133			—		(8,063		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from Credit Facility	980			—			—			—		980
Repurchase of senior notes due 2020	(5,057		)	—			—			—		(5,057		)
Repurchase of convertible notes	(49,631		)	—			—			—		(49,631		)
Deferred financing costs	(5,636		)	—			—			—		(5,636		)
Shares withheld for employee withholding taxes	(573		)	—			—			—		(573		)
Net cash proceeds from other shares issued	258			—			—			—		258
Net cash used in financing activities	(59,659		)	—			—			—		(59,659		)
Effects of exchange rate changes on cash	—			(150		)	(246		)	—		(396		)
Net increase (decrease) in cash and cash equivalents	7			(99,778		)	7,527			—		(92,244		)
Cash and cash equivalents at beginning of period	9			212,196			4,822			—		217,027
Cash and cash equivalents at end of period	$	16		$	112,418		$	12,349		$	—	$	124,783
SUPPLEMENTAL DISCLOSURES OF CASH FLOW ACTIVITIES:
Cash paid for interest	$	26,199		$	—		$	—		$	—	$	26,199
Cash paid for income taxes	$	—		$	331		$	379		$	—	$	710
SUPPLEMENTAL DISCLOSURES OF NON-CASH FINANCING ACTIVITIES:
Exchange of convertible notes for first-lien term loan	$	127,096		$	—		$	—		$	—	$	127,096

19

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

The following Management’s Discussion and Analysis of Financial Condition and Results of Operations should be read together with our unaudited consolidated financial statements and notes to unaudited consolidated financial statements in this Quarterly Report on Form 10-Q and our audited financial statements and notes thereto included in our Annual Report on Form 10-K as of and for the year ended December 31, 2017. This discussion contains forward-looking statements that reflect our current views with respect to future events and financial performance. Our actual results may differ materially from those anticipated in these forward-looking statements. See “Forward Looking Statements” for additional discussion regarding risks associated with forward-looking statements. In this Quarterly Report on Form 10-Q, “company,” “we,” “us,” “our” or like terms refer to Hornbeck Offshore Services, Inc. and its subsidiaries, except as otherwise indicated. Please refer to Item 5—Other Information for a glossary of terms used throughout this Quarterly Report on Form 10-Q.

In this Quarterly Report on Form 10-Q, we rely on and refer to information regarding our industry from the BOEM, EIA and IHS-Petrodata, Inc. These organizations are not affiliated with us and are not aware of and have not consented to being named in this Quarterly Report on Form 10-Q. We believe this information is reliable. In addition, in many cases we have made statements in this Quarterly Report on Form 10-Q regarding our industry and our position in the industry based on our experience in the industry and our own evaluation of market conditions.

General

While oil prices have recently increased from previous lows experienced earlier in this downcycle, they still remain below the average prices between 2005 and late 2014. This commodity price driven industry downturn has caused major, international and independent oil companies with deepwater operations to significantly reduce their offshore capital spending budgets for the worldwide exploration or production of oil. Less spending by our customers combined with a global oversupply of OSVs for current market conditions, including high-spec OSVs in our core markets, have resulted in significant reductions in our dayrates and utilization.

The principal question facing the offshore oilfield-related industry is the duration of the current downturn in offshore activities. Our current view is that market conditions will remain weak for all of 2018. However, given the recent improvement in oil prices, global economic improvement, growth in oil demand and lower exploration and development costs achieved by our customers, we believe that the necessary elements for improved conditions in our market may be taking shape. While impossible to predict with assurance, this market improvement may begin to take-hold as early as 2019. However, a loss of confidence in the oil price recovery or an inability by our customers to sustain cost improvements could derail or postpone a recovery. Additionally, global economic uncertainty resulting from the escalation in trade barriers, such as the recently announced tariffs, could have a negative impact on global economic growth or on oil markets.

While we have taken extensive measures to reduce costs, these reductions alone will not be sufficient to mitigate the full impact of revenues lost over an extended period of time. Even in light of our currently depressed operating levels, we believe cash generated from operations together with cash on hand and availability under the Credit Facility should be sufficient to fund our operations and commitments through at least the end of 2019. However, absent the combination of a significant recovery of market conditions such that cash flow from operations were to increase materially from projected levels coupled with a refinancing and/or further management of our funded debt obligations, we do not currently expect to have sufficient liquidity to repay the full amount of our remaining tranches of 2020 senior notes and 2021 senior notes when they mature in fiscal years 2020 and 2021, respectively. The Credit Facility was the first step in addressing the maturities of our unsecured notes. We remain fully cognizant of the challenges currently facing the offshore oil and gas industry and continue to review our capital structure and assess our strategic options.

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In the GoM, two high-spec OSVs have been delivered into the domestic market so far this year. We expect an additional six high-spec OSVs to be delivered into domestic service through 2019. We do not anticipate significant growth in the supply of high-spec OSVs beyond the currently anticipated level of 191 of such vessels by the end of 2019. During the second quarter of 2018, there was an average of roughly 31 floating rigs available in the GoM, while an average of 21.0 were working. The average number of floating rigs working in the GoM has remained in the low-twenties for eight consecutive quarters. As of August 1, 2018, there were 30 floating rigs available in the GoM, 20 of which were working. Six floating rigs have contracts that will expire during the remainder of 2018, and we do not know whether these or other idle rigs will receive contract awards or renewals for operations in the GoM. Absent additional fixtures for rigs in the GoM, the number of working rigs may decline in the second half of 2018. Given these market conditions, we expect to see continued challenges in our ability to increase dayrates and utilization in a substantial manner. However, given the overall reduction in active OSVs in the GoM that has resulted from stacking activities, we believe that we may see increased periods of market tightening caused by seasonal increases in activity by our customers or by other factors that may effect vessel supply, such as foreign deployments. Such increases, however, are expected to be temporary in nature. The GoM is one of the premier deepwater markets in the world and we are committed to supporting our customers in this market. We believe that once the current supply and demand fundamentals return to more normal conditions, our results from operations will improve. Due to a seasonal increase in demand, we experienced improved market conditions for our MPSVs in the second quarter of 2018. Some of the charters for our MPSVs have recently concluded and, unless we secure additional work for them, MPSV utilization may be negatively impacted in the second half of 2018. These vessels are used for a wide variety of oilfield applications that are not necessarily related to drilling.

In recognition of these weak market conditions, we stacked OSVs and MPSVs on various dates commencing on October 1, 2014. As of June 30, 2018, we had 40 OSVs and one MPSV stacked, all of which were still stacked as of August 1, 2018. These 41 stacked vessels represent 55% of our fleetwide vessel headcount, and 38% of our total OSV and MPSV deadweight tonnage. We may consider stacking additional vessels or reactivating vessels as market conditions warrant. By stacking vessels, we have significantly reduced our on-going cash outlays and lowered our risk profile; however, we also have fewer revenue-producing units in service that can contribute to our results and produce cash flows to cover our fixed costs and commitments. While we may choose to stack additional vessels should market conditions warrant, our current expectation is to retain our active fleet in the market to accept contracts at the best available terms even if such contracts are below our breakeven cash cost of operations. Upon completing the four-vessel acquisition from Aries Marine and certain of its affiliates, we introduced the vessels into our operating fleet and do not currently plan on stacking those vessels.

Mexico and Brazil continue to comprise our two core international markets. In Mexico, the opening of its offshore energy prospects to international participants yielded exploratory success, which has spurred further investment in offshore opportunities there. In order to support customer requirements in Mexico, and based on our long-term view that Mexico will continue to invest directly or allow foreign investment in its offshore energy sector, and increasingly in deepwater prospects, we elected to Mexican flag one HOSMAX 300 class OSV along with a 280 class and a 240 class OSV. The recent presidential election in Mexico may negatively impact the prospects for additional energy reform in Mexico or its attractiveness as a potential market to international companies. However, we believe that current investments will proceed. In Brazil, we are seeing modest increases in offshore activity driven, in part, by Brazil's further opening of its "pre-salt" prospects to international oil companies, many of which have shown significant interest in such prospects.

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Our Vessels

All of our current vessels are qualified under the Jones Act to engage in U.S. coastwise trade, except for 12 foreign-flagged new generation OSVs and two foreign-flagged MPSVs. As of June 30, 2018, our 26 active new generation OSVs, seven MPSVs and four managed OSVs were operating in domestic and international areas as noted in the following table:

Operating Areas

Domestic
GoM	18
Other U.S. coastlines (1)	8
	26
Foreign
Other Latin America	5
Trinidad	4
Brazil	1
Mexico	1
	11
Total Vessels (2)	37

(1) Includes four owned vessels and four managed vessels supporting the military.

(2) Excluded from this table are 40 new generation OSVs and one MPSV that were stacked as of June 30, 2018.

Critical Accounting Estimates

This Management’s Discussion and Analysis of Financial Condition and Results of Operations discusses our unaudited consolidated financial statements included in this Quarterly Report on Form 10-Q. In many cases, the accounting treatment of a particular transaction is specifically dictated by GAAP. In other circumstances, we are required to make estimates, judgments and assumptions that we believe are reasonable based on available information. We base our estimates and judgments on historical experience and various other factors that we believe are reasonable based upon the information available. Actual results may differ from these estimates under different assumptions and conditions. Our significant accounting policies and estimates are discussed in Item 7 - Management's Discussion and Analysis of Financial Condition and Results of Operations and in Note 2 to our consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2017.

Results of Operations

The tables below set forth the average dayrates, utilization rates and effective dayrates for our owned new generation OSVs and the average number and size of vessels owned during the periods indicated. These vessels generate a substantial portion of our revenues and operating profit. Excluded from the OSV information below are the results of operations for our MPSVs, our shore-base facility and vessel management services, including the four non-owned vessels managed for the U.S. Navy. The Company does not provide average or effective dayrates for its MPSVs. MPSV dayrates are impacted by highly variable customer-required cost-of-sales associated with ancillary equipment and services, such as ROVs, accommodation units and cranes, which are typically recovered through higher dayrates charged to the customer. Due to the fact that each of our MPSVs have a workload capacity and significantly higher income generating potential than each of the Company’s new generation OSVs, the utilization and dayrate levels of our MPSVs can have a very large impact on our results of operations. For this reason, our consolidated operating results, on a period-to-period basis, are disproportionately impacted by the level of dayrates and utilization achieved by our eight MPSVs.

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	Three Months Ended    June 30,						Six Months Ended   June 30,
	2018			2017			2018			2017
Offshore Supply Vessels:
Average number of new generation OSVs (1)	63.9			62.0			63.0			62.0
Average number of active new generation OSVs (2)	22.7			20.7			20.4			19.4
Average new generation OSV fleet capacity (DWT)	228,925			220,172			224,498			220,172
Average new generation OSV capacity (DWT)	3,583			3,551			3,566			3,551
Average new generation OSV utilization rate (3)	27.0		%	22.3		%	23.9		%	21.0		%
Effective new generation OSV utilization rate (4)	76.0		%	66.6		%	73.9		%	67.0		%
Average new generation OSV dayrate (5)	$	19,566		$	17,202		$	18,895		$	22,129
Effective dayrate (6)	$	5,283		$	3,836		$	4,516		$	4,647

(1) We owned 66 new generation OSVs as of June 30, 2018. Excluded from this data are eight MPSVs owned and operated by the Company as well as four non-owned vessels managed for the U.S. Navy.

(2) In response to weak market conditions, we elected to stack certain new generation OSVs on various dates since October 1, 2014. Active new generation OSVs represent vessels that are immediately available for service during each respective period.

(3) Utilization rates are average rates based on a 365-day year. Vessels are considered utilized when they are generating revenues.

(4) Effective utilization rate is based on a denominator comprised only of vessel-days available for service by the active fleet, which excludes the impact of stacked vessel days.

(5) Average new generation OSV dayrates represent average revenue per day, which includes charter hire, crewing services, and net brokerage revenues, based on the number of days during the period that the OSVs generated revenues.

(6) Effective dayrate represents the average dayrate multiplied by the average utilization rate.

Non-GAAP Financial Measures

We disclose and discuss EBITDA as a non-GAAP financial measure in our public releases, including quarterly earnings releases, investor conference calls and other filings with the Securities and Exchange Commission. We define EBITDA as earnings (net income) before interest, income taxes, depreciation and amortization. Our measure of EBITDA may not be comparable to similarly titled measures presented by other companies. Other companies may calculate EBITDA differently than we do, which may limit its usefulness as a comparative measure.

We view EBITDA primarily as a liquidity measure and, as such, we believe that the GAAP financial measure most directly comparable to this measure is cash flows provided by operating activities. Because EBITDA is not a measure of financial performance calculated in accordance with GAAP, it should not be considered in isolation or as a substitute for operating income, net income or loss, cash flows provided by operating, investing and financing activities, or other income or cash flow statement data prepared in accordance with GAAP.

EBITDA is widely used by investors and other users of our financial statements as a supplemental financial measure that, when viewed with our GAAP results and the accompanying reconciliations, we believe EBITDA provides additional information that is useful to gain an understanding of the factors and trends affecting our ability to service debt, pay deferred taxes and fund drydocking charges and other maintenance capital expenditures. We also believe the disclosure of EBITDA helps investors meaningfully evaluate and compare our cash flow generating capacity from quarter to quarter and year to year.

EBITDA is also a financial metric used by management as a supplemental internal measure for planning and forecasting overall expectations and for evaluating actual results against such expectations; to compare to the EBITDA of other companies when evaluating potential acquisitions; and to assess our ability to service existing fixed charges and incur additional indebtedness.

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The following table provides the detailed components of EBITDA as we define that term for the three and six months endedJune 30, 2018 and 2017, respectively (in thousands):

	Three Months Ended    June 30,						Six Months Ended   June 30,
	2018			2017			2018			2017
Components of EBITDA:
Net loss	$	(25,088	)	$	(19,489	)	$	(63,743	)	$	(47,387	)
Interest, net
Debt obligations	16,401			13,429			30,346			27,238
Interest income	(519		)	(464		)	(1,163		)	(865		)
Total interest, net	15,882			12,965			29,183			26,373
Income tax benefit	(6,438		)	(9,262		)	(14,929		)	(21,576		)
Depreciation	24,630			24,679			49,278			49,356
Amortization	2,256			3,266			4,248			6,990
EBITDA	$	11,242		$	12,159		$	4,037		$	13,756

The following table reconciles EBITDA to cash flows provided by operating activities for the three and six months ended June 30, 2018 and 2017, respectively (in thousands):

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
EBITDA Reconciliation to GAAP:
EBITDA	$	11,242		$	12,159		$	4,037		$	13,756
Cash paid for deferred drydocking charges	(1,381		)	(2,826		)	(3,351		)	(5,955		)
Cash paid for interest	(14,173		)	(12,443		)	(29,304		)	(26,199		)
Cash paid for taxes	(201		)	(361		)	(650		)	(710		)
Changes in working capital	(15,990		)	(2,813		)	(3,157		)	3,433
Stock-based compensation expense	1,885			972			4,753			3,014
Gain on early extinguishment of debt	—			(15,478		)	—			(15,478		)
Gain on sale of assets	13			(1		)	(30		)	(19		)
Changes in other, net	(174		)	284			49			4,032
Net cash flows used in operating activities	$	(18,779	)	$	(20,507	)	$	(27,653	)	$	(24,126	)

In addition, we have also historically made certain adjustments, as applicable, to EBITDA for losses on early extinguishment of debt, stock-based compensation expense and interest income, to internally evaluate our performance based on the computation of ratios used in certain financial covenants of our credit agreements with various lenders, whenever applicable. We believe that such ratios can, at times, be material components of financial covenants and, when applicable, failure to comply with such covenants could result in the acceleration of indebtedness or the imposition of restrictions on our financial flexibility.

The following table provides certain detailed adjustments to EBITDA, as defined in our Credit Facility, for the three and six months ended June 30, 2018 and 2017, respectively (in thousands):

	Three Months Ended    June 30,				Six Months Ended   June 30,
	2018		2017		2018		2017
Gain on early extinguishment of debt	$	—	$	15,478	$	—	$	15,478
Stock-based compensation expense	1,885		972		$	4,753	$	3,014
Interest income	519		464		1,163		865

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Set forth below are the material limitations associated with using EBITDA as a non-GAAP financial measure compared to cash flows provided by operating activities.

• EBITDA does not reflect the future capital expenditure requirements that may be necessary to replace our existing vessels as a result of normal wear and tear,

• EBITDA does not reflect the interest, future principal payments and other financing-related charges necessary to service the debt that we have incurred in acquiring and constructing our vessels,

• EBITDA does not reflect the deferred income taxes that we will eventually have to pay once we are no longer in an overall tax net operating loss carryforward position, as applicable, and

• EBITDA does not reflect changes in our net working capital position.

Management compensates for the above-described limitations in using EBITDA as a non-GAAP financial measure by only using EBITDA to supplement our GAAP results.

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Summarized financial information for the three months ended June 30, 2018 and 2017, respectively, is shown below in the following table (in thousands, except percentage changes):

	Three Months Ended    June 30,						Increase (Decrease)
	2018			2017			$ Change			% Change
Revenues:
Vessel revenues
Domestic	$	43,536		$	23,646		$	19,890		84.1		%
Foreign	5,945			5,693			252			4.4		%
	49,481			29,339			20,142			68.7		%
Non-vessel revenues	8,950			8,087			863			10.7		%
	58,431			37,426			21,005			56.1		%
Operating expenses	34,858			31,368			3,490			11.1		%
Depreciation and amortization	26,886			27,945			(1,059		)	(3.8	)	%
General and administrative expenses	12,246			9,432			2,814			29.8		%
	73,990			68,745			5,245			7.6		%
Gain (loss) on sale of assets	(13		)	1			(14		)	>100		%
Operating loss	(15,572		)	(31,318		)	15,746			(50.3	)	%
Gain on early extinguishment of debt	—			15,478			(15,478		)	100.0		%
Interest expense	16,401			13,429			2,972			22.1		%
Interest income	519			464			55			11.9		%
Income tax benefit	(6,438		)	(9,262		)	2,824			(30.5	)	%
Net loss	$	(25,088	)	$	(19,489	)	$	(5,599	)	28.7		%

Three Months Ended June 30, 2018 Compared to Three Months Ended June 30, 2017

Revenues. Revenues for the three months ended June 30, 2018increased by $21.0 million, or 56.1%, to $58.4 million compared to the same period in 2017. Our weighted-average active operating fleet for the three months ended June 30, 2018 and 2017 was 29.9 and 27.6 vessels, respectively.

Vessel revenues increased$20.1 million, or 68.7%, to $49.5 million for the three months ended June 30, 2018 compared to $29.3 million for the same period in 2017. The increase in vessel revenues was primarily due to seasonally-improved market conditions for our MPSVs and, to a lesser extent, increased revenues from our OSVs. Revenues from our fleet of MPSVs increased by $10.9 million, or 140.3%, compared to the same period in 2017. This increase was primarily attributable to a seasonal increase in demand for such vessels. For the three months ended June 30, 2018, we had an average of 42.0 vessels stacked compared to 42.5 vessels stacked in the prior-year quarter. Average new generation OSV dayrates were $19,566 for the second quarter of 2018 compared to $17,202 for the same period in 2017. Our new generation OSV utilization was 27.0% for the second quarter of 2018 compared to 22.3% for the same period in 2017. Our new generation OSVs were stacked for an aggregate of 3,749 days during the second quarter of 2018 compared to 3,757 days for the same period in 2017. Excluding stacked vessel days, our new generation OSV effective utilization was 76.0% and 66.6% for the same periods, respectively. Domestic vessel revenues increased $19.9 million from the year-ago quarter primarily due to higher effective dayrates earned by our MPSVs and OSVs during the three months ended June 30, 2018. Foreign vessel revenues increased $0.3 million. Foreign vessel revenues for the second quarter of 2018 comprised 12.0% of our total vessel revenues compared to 19.4% for the year-ago period.

Non-vessel revenues increased $0.9 million, or 10.7%, to $9.0 million for the three months ended June 30, 2018 compared to $8.1 million for the same period in 2017. This increase is primarily attributable to higher revenues earned from vessel management services during 2018 compared to the year-ago period.

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Operating Expenses. Operating expenses were $34.9 million, an increase of $3.5 million, or 11.1%, for the three months ended June 30, 2018 compared to $31.4 million for the same period in 2017. Operating expenses increased primarily due to four vessels that were acquired in the second quarter of 2018 and a higher number of active vessels in our fleet during the three months ended June 30, 2018. Aggregate cash operating expenses for our vessels are projected to be in the approximate annual range of $140.0 million to $150.0 million for the year ending December 31, 2018. Such cash operating expense estimate is exclusive of any additional repositioning expenses we may incur in connection with the potential relocation of more of our vessels into international markets or back to the GoM and any customer-required cost-of-sales related to future contract fixtures that are typically recovered through higher dayrates.

Depreciation and Amortization. Depreciation and amortization expense of $26.9 million was $1.1 million, or 3.8%, lower for the three months ended June 30, 2018 compared to the same period in 2017. Depreciation was in-line compared to the prior-year period. The decrease in amortization expense of $1.0 million was mainly driven lower by postponed recertifications for certain of our stacked OSVs. Depreciation expense is expected to increase from current levels as the two remaining vessels under our current newbuild program are placed in service. Amortization expense is expected to decrease as the result of the deferral of regulatory recertification activities for vessels that have been stacked. We expect amortization expense to increase temporarily whenever market conditions warrant reactivation of currently stacked vessels, which will then require us to drydock such vessels, and thereafter to revert back to historical levels.

General and Administrative Expense. G&A expense of $12.2 million was $2.8 millionhigher during the three months ended June 30, 2018 compared to the same period in 2017. The increase in G&A expense was attributable to higher professional fees, short-term incentive compensation and long-term incentive compensation expense. Long-term incentive compensation was higher due to a "mark to market" adjustment on cash-settled awards to reflect the increase in our stock price during the three months ended June 30, 2018 compared to a decrease in our stock price during the three months ended June 30, 2017. These unfavorable variances were partially offset by lower bad debt reserves.

Operating Loss. Operating loss decreased by $15.7 million to $15.6 million during the three months ended June 30, 2018 compared to the same period in 2017 for the reasons discussed above. Operating loss as a percentage of revenues was 26.7% for the three months ended June 30, 2018 compared to 83.7% for the same period in 2017.

Gain on Early Extinguishment of Debt. On June 15, 2017, we terminated the then existing revolving credit facility and replaced it with a $300 million first-lien credit facility, or Credit Facility. We concurrently arranged for the repurchase of $73.3 million of the 2019 convertible senior notes, and $8.1 million of the 2020 senior notes, for an aggregate total of $54.1 million of cash. We recorded a gain on early extinguishment of debt of approximately $15.5 million ($10.5 million or $0.29 per diluted share after-tax), which was comprised of a $27.2 million gain on the repurchase of the 2019 convertible senior notes and the 2020 senior notes, offset in part by the write-off of $2.3 million in deal costs and unamortized financing costs related to the credit facilities and $9.4 million of original issue discount, deal costs and unamortized financing costs related to the notes repurchased.

Interest Expense. Interest expense of $16.4 millionincreased$3.0 million during the three months ended June 30, 2018 compared to the same period in 2017 due to lower capitalized interest. During the second quarter of 2018, we did not capitalize any construction period interest compared to $2.5 million, or roughly 15.7% of our total interest costs, for the year-ago period.

Interest Income. Interest income was $0.5 million during the three months ended June 30, 2018, which was flat compared to the same period in 2017. Our average cash balance decreased to $140.6 million for the three months ended June 30, 2018 compared to $188.4 million for the same period in 2017. The average interest rate earned on our invested cash balances was 0.7% and 1.0% during the three months ended June 30, 2018 and 2017, respectively. The decrease in average cash balance was primarily due to cash outflows associated with the acquisition of four OSVs from Aries Marine and related entities during the second quarter of 2018.

Income Tax Benefit. Our effective tax benefit rate was 20.4% and 32.2% for the three months ended June 30, 2018 and 2017, respectively. Our income tax benefit for the second quarter of 2018 was less than the

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benefit rate from the second quarter of 2017 due to the rate reduction contained in tax legislation that was enacted in December 2017. The primary impact of this legislation was the reduction of federal corporate income tax rates from 35% to 21%, effective as of January 1, 2018. Additionally, the benefit rate for the current year period and prior year period include the impact of a valuation allowance for certain deferred tax assets that are not expected to be realized by their expiration dates. Our income tax benefit primarily consisted of deferred taxes. Our income tax rate differs from the federal statutory rate primarily due to expected state tax liabilities and items not deductible for federal income tax purposes.

Net Loss. Net loss increased by $5.6 million for a reported net loss of $25.1 million for the three months ended June 30, 2018 compared to a net loss of $19.5 million for the same period during 2017. Excluding the gain on early extinguishment of debt, net loss would have been $30.0 million for the three months ended June 30, 2017. This decreased net loss, excluding the gain on early extinguishment of debt, was primarily driven by improved market conditions for our MPSVs.

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Summarized financial information for the six months endedJune 30, 2018 and 2017, respectively, is shown below in the following table (in thousands, except percentage changes):

	Six Months Ended   June 30,						Increase (Decrease)
	2018			2017			$ Change			% Change
Revenues:
Vessel revenues
Domestic	$	68,760		$	54,566		$	14,194		26.0		%
Foreign	13,855			10,622			3,233			30.4		%
	82,615			65,188			17,427			26.7		%
Non-vessel revenues	17,403			16,317			1,086			6.7		%
	100,018			81,505			18,513			22.7		%
Operating expenses	70,827			59,303			11,524			19.4		%
Depreciation and amortization	53,526			56,346			(2,820		)	(5.0	)	%
General and administrative expenses	25,121			23,674			1,447			6.1		%
	149,474			139,323			10,151			7.3		%
Gain on sale of assets	30			19			11			57.9		%
Operating loss	(49,426		)	(57,799		)	8,373			(14.5	)	%
Gain on early extinguishment of debt	—			(15,478		)	15,478			100.0		%
Interest expense	30,346			27,238			3,108			11.4		%
Interest income	1,163			865			298			34.5		%
Income tax benefit	(14,929		)	(21,576		)	6,647			(30.8	)	%
Net loss	$	(63,743	)	$	(47,387	)	$	(16,356	)	34.5		%

Six Months Ended June 30, 2018 Compared to Six Months Ended June 30, 2017

Revenues. Revenues for the six months ended June 30, 2018increased by $18.5 million, or 22.7%, to $100.0 million compared to the same period in 2017. Our weighted-average active operating fleet for the six months ended June 30, 2018 and 2017 was 28.0 and 25.8 vessels, respectively.

Vessel revenues increased$17.4 million, or 26.7%, to $82.6 million for the six months ended June 30, 2018 compared to $65.2 million for the same period in 2017. The increase in vessel revenues primarily resulted from improved market conditions for our MPSVs and OSVs. Revenues from our MPSV fleet increased $17.9 million, or 135.3%, for the six months ended June 30, 2018 compared to the prior-year period. The prior-year period was favorably impacted by a redelivery fee related to the completion of a long-term contract for one of our OSVs that was recognized during the first six months of 2017. Excluding such redelivery fee, vessel revenues for the six months ended June 30, 2018 would have increased by $26.8 million, or 48.0% compared to the same period in 2017. For the six months endedJune 30, 2018, we had an average of 43.0 vessels stacked compared to an average of 44.2 vessels stacked in the prior-year period. Average new generation OSV dayrates were $18,895 for the first six months of 2018 compared to $22,129 for the same period in 2017, a decrease of $3,234, or 14.6%. Excluding the redelivery fee, average new generation OSV dayrates would have been $18,144 for the first six months of 2017. Our new generation OSV utilization was 23.9% for the first six months of 2018 compared to 21.0% for the same period in 2017. Our new generation OSVs incurred 88 days of aggregate downtime for regulatory drydockings and were stacked for an aggregate of 7,705 days during the first six months of 2018. Excluding stacked vessel days, our new generation OSV effective utilization was 73.9% and 67.0% during the six months ended June 30, 2018 and 2017, respectively. Domestic vessel revenues increased $14.2 million from the year-ago period primarily due to higher dayrates earned by our MPSVs during the six months endedJune 30, 2018. Foreign vessel revenues increased $3.2 million primarily due to higher dayrates earned by our OSVs working in foreign regions during the six months

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ended June 30, 2018. Foreign vessel revenues for the first six months of 2018 comprised 16.8% of our total vessel revenues compared to 16.3% for the year-ago period.

Non-vessel revenues increased $1.1 million, or 6.7%, from the prior-year period. This increase is primarily attributable to higher revenues earned from vessel management services during the six months ended June 30, 2018 compared to the year-ago period.

Operating Expenses. Operating expenses were $70.8 million, an increase of $11.5 million, or 19.4%, for the six months ended June 30, 2018 compared to $59.3 million for the same period in 2017. Operating expenses were higher due increased activity from our MPSVs along with vessels added to our fleet since June 30, 2017.

Depreciation and Amortization. Depreciation and amortization expense of $53.5 million was $2.8 million, or 5.0%, lower for the six months ended June 30, 2018 compared to the same period in 2017. Depreciation was in-line compared to the prior-year period. Amortization expense decreased $2.7 million due to postponed recertifications for certain of our stacked OSVs. Amortization expense is expected to decrease further in the near term as a result of the deferral of regulatory recertification activities for vessels that have been stacked. We expect amortization expense to increase temporarily whenever market conditions warrant reactivation of currently stacked vessels, which will then require us to drydock such vessels, and thereafter to revert back to historical levels.

General and Administrative Expense. G&A expense of $25.1 million was $1.4 millionhigher during the six months ended June 30, 2018 compared to the same period in 2017. The increase in G&A expense was primarily attributable to higher professional fees, long-term incentive compensation expense and short-term incentive compensation expense. Long-term incentive compensation was higher due to a "mark to market" adjustment on cash-settled awards to reflect the increase in our stock price during the six months ended June 30, 2018. These unfavorable variances were partially offset by lower bad debt reserves due to the unfavorable ruling in a bankruptcy proceeding related to a receivable from a former customer that was fully reserved during the first half of 2017.

Operating Loss. Operating loss decreased by $8.4 million to an operating loss of $49.4 million during the six months ended June 30, 2018 compared to the same period in 2017 for the reasons discussed above. Operating loss as a percentage of revenues was 49.4% for the six months ended June 30, 2018 compared to 70.9% for the same period in 2017.

Gain on Early Extinguishment of Debt. On June 15, 2017, we terminated our then existing revolving credit facility and replaced it with the Credit Facility. We concurrently arranged for the repurchase $73.3 million of the 2019 convertible senior notes and $8.1 million of the 2020 senior notes, for an aggregate total of $54.1 million of cash. We recorded a gain on early extinguishment of debt of approximately $15.5 million ($10.5 million or $0.29 per diluted share after-tax), which was comprised of a $27.2 million gain on the repurchase of the 2019 convertible notes and the 2020 senior notes, offset in part by the write-off of $2.3 million in deal costs and unamortized financing costs related to the credit facilities and $9.4 million of original issue discount, deal costs and unamortized financing costs related to the notes repurchased.

Interest Expense. Interest expense of $30.3 million was $3.1 million higher than the same period in 2017. During the six months ended June 30, 2018, we recorded $2.3 million of capitalized construction period interest, or roughly 7.1% of our total interest costs, compared to having capitalized $4.9 million, or roughly 15.3% of our total interest costs, for the year-ago period.

Interest Income. Interest income was $1.2 million during the six months ended June 30, 2018, which was $0.3 million higher than the same period in 2017. Our average cash balance decreased to $167.3 million for the six months ended June 30, 2018 compared to $206.1 million for the same period in 2017. The average interest rate earned on our invested cash balances was 1.4% and 0.7% during the six months ended June 30, 2018 and 2017, respectively. The decrease in average cash balance was primarily due to cash outflows associated with the repurchase of a portion of our 2019 convertible senior notes and 2020 senior notes during the second quarter of 2017 and the acquisition of four vessels during the second quarter of 2018. These outflows were partially offset by draws under our Credit Facility.

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Income Tax Benefit. Our effective tax benefit rate was 19.0% and 31.3% for the six months ended June 30, 2018 and 2017, respectively. Our income tax benefit for the second quarter of 2018 was less than the benefit rate from the second quarter of 2017 due to the rate reduction contained in tax legislation that was enacted in December 2017. The primary impact of this legislation was the reduction of federal corporate income tax rates from 35% to 21% effective as of January 1, 2018. Additionally, the benefit rate for the current year period and prior year period include the impact of a valuation allowance for certain deferred tax assets that are not expected to be realized by their expiration dates. Our income tax benefit primarily consisted of deferred taxes. Our income tax rate differs from the federal statutory rate primarily due to expected state tax liabilities and items not deductible for federal income tax purposes.

Net Loss. Net loss increased by $16.4 million for a reported net loss of $63.7 million for the six months ended June 30, 2018 compared to a net loss of $47.4 million for the same period during 2017. Excluding the gain on early extinguishment of debt, net loss would have been $57.9 million for the six months ended June 30, 2017. This increased net loss, excluding the gain on early extinguishment of debt, was primarily driven by higher interest expense and a lower tax benefit rate in the six months ended June 30, 2018.

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Liquidity and Capital Resources

We have a partially drawn $300 million Credit Facility that matures in June 2023 and is guaranteed by our significant domestic subsidiaries other than Hornbeck Offshore Services, LLC, which is the Co-Borrower. The Credit Facility contains customary representations and warranties, covenants and events of default, but only one maintenance covenant, which is a $25 million minimum liquidity requirement. See Note 6 for further discussion of this facility.

Our capital requirements have historically been financed with cash flows from operations, proceeds from issuances of our debt and common equity securities, borrowings under our credit facilities and cash received from the sale of assets. We require capital to fund on-going operations, remaining obligations under our expanded fifth OSV newbuild program, vessel recertifications, discretionary capital expenditures and debt service and may require capital to fund potential future vessel construction, retrofit or conversion projects, acquisitions, stock repurchases or the retirement of debt. The nature of our capital requirements and the types of our financing sources are not expected to change significantly for the balance of 2018.

We regularly review all of our debt agreements, including the Credit Facility, as well as our liquidity position and projected future cash needs. Despite volatility in commodity markets, we remain confident in the long-term viability of our business model upon improvement in market conditions. Since the fall of 2014, our liquidity has been impacted by low oil and natural gas prices, which together with oil and natural gas being produced in greater volumes onshore, has impacted the extent of offshore exploration and development activities, resulting in lower than normal cash flow from operations. However, we project that, even with the current depressed operating levels, cash generated from operations together with cash on-hand and remaining undrawn availability under the Credit Facility should be sufficient to fund our operations and commitments through at least December 31, 2019. We also believe that we will be able to fund all of the deferred maintenance capital expenditures that will be required upon reactivation of our stacked vessels when market conditions improve with existing sources of liquidity. We have three tranches of funded unsecured debt outstanding that mature in fiscal years 2019, 2020 and 2021, respectively. However, absent the combination of a significant recovery of market conditions such that cash flow from operations were to increase materially from projected levels coupled with a refinancing and/or further management of our funded debt obligations, we do not currently expect to have sufficient liquidity to repay the full amount of the 2020 senior notes and the 2021 senior notes as they mature in fiscal years 2020 and 2021, respectively. The Credit Facility was the first step in addressing the maturities of our unsecured notes. Refinancing in the current climate is not likely to be achievable on terms that are in-line with our historic cost of debt capital. We remain fully cognizant of the challenges currently facing the offshore oil and gas industry and are proactively taking steps to protect the business enterprise.

As of June 30, 2018, we had total liquidity (cash and credit availability) of $245.8 million, comprised of $109.1 million of cash and $136.7 million of availability under the Credit Facility. As of August 9, 2018, we are in compliance with all applicable covenants under our Credit Facility.

We may, subject to market conditions and our other strategic options, from time to time amend, extinguish or repurchase part or all of our outstanding debt securities or exchange them for other debt or equity securities or loans. While we have an authorized share repurchase program, we currently intend, subject to market conditions, to prioritize our cash usage appropriate to the current market cycle, our longer term commitments and our strategic objectives.

Events beyond our control, such as sustained low prices for oil and natural gas, a further significant decline in such commodity prices, renewed regulatory-driven delays in the issuance of drilling plans and permits in the GoM, declines in expenditures for offshore exploration, development and production activity, any extended reduction in domestic consumption of refined petroleum products and other reasons discussed under the "Forward Looking Statements" on page ii and "Item 1A—Risk Factors" of our Annual Report on Form 10-K, may affect our financial condition, results of operations or cash flows in the future. Should the need for

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additional financing arise, we may not be able to access the capital markets on attractive terms at that time or otherwise obtain sufficient capital to meet our maturing debt obligations or finance growth opportunities that may arise. We will continue to closely monitor our liquidity position, as well as the state of the global capital and credit markets. See further discussion in the Contractual Obligations section below.

Cash Flows

Operating Activities. Historically, we have relied primarily on cash flows from operations to provide working capital for current and future operations. Cash flows used in operating activities were $27.7 million for the six months ended June 30, 2018 compared to cash flows used in operating activities of $24.1 million for the same period in 2017. Operating cash flows for the first six months of 2018 continue to be unfavorably affected by weak market conditions for our vessels operating worldwide.

Investing Activities. Net cash used in investing activities was $49.1 million for the six months ended June 30, 2018 compared to $8.1 million for the same period in 2017. Cash used during the first six months of 2018 consisted primarily of the purchase of four high-spec Jones Act-qualified OSVs and related equipment from Aries Marine Corporation. Cash used during the first six months of 2017 consisted primarily of construction costs paid for our fifth OSV newbuild program.

Financing Activities. Net cash used in financing activities was $0.3 million for the six months ended June 30, 2018 compared to $59.7 million net cash used in financing activities for the same period in 2017. Net cash used in financing activities for the six months ended June 30, 2018 resulted from shares withheld for payment of taxes due to compensatory restricted stock unit vestings. Net cash used in financing activities for the six months ended June 30, 2017 resulted from the repurchase of a portion of the 2019 convertible senior notes and the 2020 senior notes and related financing costs.

Contractual Obligations

Debt

As of June 30, 2018, the Company had the following outstanding long-term debt (in thousands, except effective interest rate):

	Total Debt		Effective Interest Rate		Cash Interest Payment		Payment Dates
5.875% senior notes due 2020, net of deferred financing costs of $1,611 (1)	$	365,331	6.08	%	$	10,779	April 1 and October 1
5.000% senior notes due 2021, net of deferred financing costs of $2,657 (1)	447,343		5.21	%	11,250		March 1 and September 1
1.500% convertible senior notes due 2019, net of original issue discount of $4,707 and deferred financing costs of $1,055	93,885		6.23	%	747		March 1 and September 1
Credit Facility due 2023, plus deferred gain of $17,457, net of original issue discount of $1,115 and deferred financing costs of $3,129 (2)	176,535		8.60	%	1,202		Variable
	$	1,083,094

(1) The senior notes do not require any payments of principal prior to their stated maturity dates, but pursuant to the indentures under which the 2020 and 2021 senior notes were issued, we would be required to make offers to purchase such senior notes upon the occurrence of specified events, such as certain asset sales or a change in control.

(2) The interest rate on the Credit Facility is variable based on the Company's election. The amount reflected in this table is the monthly amount payable based on the 30-day LIBOR interest rate that was elected and in effect on June 30, 2018. Please see Note 6 for further discussion of the variable interest rate included within the Credit Facility.

The credit agreement governing the Credit Facility and the indentures governing our 2020 and 2021 senior notes impose certain operating and financial restrictions on us. Such restrictions affect, and in many cases limit or prohibit, among other things, our ability to incur additional indebtedness, make capital expenditures, redeem equity, create liens, sell assets and pay dividends or make other restricted payments. For the six months ended June 30, 2018, we were in compliance with all applicable financial covenants. We continuously review our debt covenants and report to our Credit Facility lenders our compliance with all

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applicable covenants on a quarterly basis. We also consider such covenants in evaluating transactions that will have an effect on our financial ratios.

Growth Capital Expenditures and Related Commitments

During the first quarter of 2018, the Company notified the shipyard that was constructing the remaining two vessels in the Company's fifth OSV newbuild program that it was terminating the construction contract for such vessels. The Company intends to work with the performance bond surety to find a shipyard that can finish construction and deliver such vessels in 2019. The following table sets forth the amounts incurred for our fifth OSV newbuild program, before construction period interest, during the six months ended June 30, 2018 and since such program’s inception, as well as the estimated total project costs for such program (in millions):

	Six Months Ended   June 30, 2018		Incurred Since Inception		Estimated Program Totals (1)		Projected Delivery Dates (1)
Growth Capital Expenditures:
OSV newbuild program #5 (2)	$	0.5	$	1,273.2	$	1,335.0	2Q2013-3Q2019

(1) Estimated Program Totals and Projected Delivery Dates are based on internal estimates and are subject to change due to delays and possible cost overruns inherent in any large construction project, including, without limitations, shortages of equipment, lack of shipyard availability, unforeseen engineering problems, work stoppages, weather interference, unanticipated cost increases, the inability to obtain necessary certifications and approvals and shortages of materials, component equipment or skilled labor. All of the above historical and budgeted capital expenditure project amounts for our newbuild program represent estimated cash outlays and do not include any allocation of capitalized construction period interest. Actual and projected delivery dates correspond to the first and last vessels that are contracted with shipyards for construction and delivery under our currently active program, respectively.

(2) Our fifth OSV newbuild program consists of vessel construction contracts with three domestic shipyards to build four 300 class OSVs, five 310 class OSVs, ten 320 class OSVs, three 310 class MPSVs and two 400 class MPSVs. As of August 1, 2018, we had placed 22 vessels in service under such program. The remaining two vessels under this 24-vessel domestic newbuild program are currently expected to be placed in service in the second and third quarters of 2019.

On May 18, 2018, the Company completed the acquisition of four high-spec Jones Act-qualified OSVs from Aries Marine Corporation and certain of its affiliates for $40.9 million in cash, inclusive of $4.3 million of related vessel equipment, certain intangibles, the cost of fuel and lube inventory and transactions fees. The acquired vessels are all U.S.-flagged and are comprised of two 300 class OSVs and two 280 class OSVs.

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Maintenance and Other Capital Expenditures

The following table summarizes the costs incurred, prior to the allocation of construction period interest, for the purposes set forth below for the three and six months ended June 30, 2018 and 2017, respectively, and a forecast for the fiscal year ending December 31, 2018 (in millions):

	Three Months Ended    June 30,				Six Months Ended   June 30,				Year Ended December 31,
	2018		2017		2018		2017		2018
	Actual		Actual		Actual		Actual		Forecast
Maintenance and Other Capital Expenditures:
Maintenance Capital Expenditures
Deferred drydocking charges (1)	$	1.4	$	2.9	$	3.4	$	6.0	$	13.8
Other vessel capital improvements (2)	1.5		0.2		4.1		0.3		8.4
	2.9		3.1		7.5		6.3		22.2
Other Capital Expenditures
Commercial-related capital expenditures (3)	4.1		0.1		5.4		0.2		5.6
Non-vessel related capital expenditures (4)	0.1		0.4		0.1		0.5		0.3
	4.2		0.5		5.5		0.7		5.9
Total	$	7.1	$	3.6	$	13.0	$	7.0	$	28.1

(1) Deferred drydocking charges for 2018 include the projected recertification costs for 11 OSVs and one MPSV.

(2) Other vessel capital improvements include costs for discretionary vessel enhancements, which are typically incurred during a planned drydocking event to meet customer specifications.

(3) Commercial-related capital expenditures, including vessel improvements such as the addition of cranes, ROVs, helidecks, living quarters and other specialized vessel equipment, or the modification of vessel capacities or capabilities, such as DP upgrades and mid-body extensions, which costs are typically included in and offset, in whole or in part, by higher dayrates charged to customers; and commercial-related intangibles.

(4) Non-vessel related capital expenditures are primarily related to information technology and shoreside support initiatives.

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Forward Looking Statements

This Quarterly Report on Form 10-Q contains “forward-looking statements,” as contemplated by the Private Securities Litigation Reform Act of 1995, in which the Company discusses factors it believes may affect its performance in the future. Forward-looking statements are all statements other than historical facts, such as statements regarding assumptions, expectations, beliefs and projections about future events or conditions. You can generally identify forward-looking statements by the appearance in such a statement of words like “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “forecast,” “intend,” “may,” “might,” “plan,” “potential,” “predict,” “project,” “remain,” “should,” “will,” or other comparable words or the negative of such words. The accuracy of the Company’s assumptions, expectations, beliefs and projections depends on events or conditions that change over time and are thus susceptible to change based on actual experience, new developments and known and unknown risks. The Company gives no assurance that the forward-looking statements will prove to be correct and does not undertake any duty to update them. The Company’s actual future results might differ from the forward-looking statements made in this Quarterly Report on Form 10-Q for a variety of reasons, including impacts from changes in oil and natural gas prices in the U.S. and worldwide; continued weakness in demand and/or pricing for the Company’s services through and beyond the maturity of any of the Company's long-term debt; unplanned customer suspensions, cancellations, rate reductions or non-renewals of vessel charters, or vessel management contracts, or failures to finalize commitments to charter or manage vessels; continued weak or cuts in capital spending by customers on offshore exploration and development; the inability to accurately predict vessel utilization levels and dayrates; sustained weakness in the number of deepwater and ultra-deepwater drilling units operating in the GoM or other regions where the Company operates; the effect of inconsistency by the United States government in the pace of issuing drilling permits and plan approvals in the GoM or other drilling regions; any negative impact on the Company’s ability to successfully complete the remainder of its current vessel newbuild program on-time or on-budget; the inability to successfully market the vessels that the Company owns, is constructing or might acquire; the government's cancellation or non-renewal of the management, operations and maintenance contracts for vessels; an oil spill or other significant event in the United States or another offshore drilling region that could have a broad impact on deepwater and other offshore energy exploration and production activities, such as the suspension of activities or significant regulatory responses; the imposition of laws or regulations that result in reduced exploration and production activities or that increase the Company’s operating costs or operating requirements; environmental litigation that impacts customer plans or projects; disputes with customers; bureaucratic, administrative or operating barriers that delay vessels in foreign markets from going on-hire; administrative barriers to exploration and production activities in Brazil; disruption in the timing and/or extent of Mexican offshore activities due to the results of the recent Mexican presidential election or changes in law or policy; age or other restrictions imposed on the Company's vessels by customers; unanticipated difficulty in effectively competing in or operating in international markets; less than anticipated subsea infrastructure and field development demand in the GoM and other markets affecting the Company's MPSVs; sustained vessel over capacity for existing demand levels in the markets in which the Company competes; economic and geopolitical risks; weather-related risks; upon a return to improved operating conditions, the shortage of or the inability to attract and retain qualified personnel, when needed, including vessel personnel for active vessels or vessels the Company may reactivate or acquire; any success in unionizing the Company's U.S. fleet personnel; regulatory risks; the repeal or administrative weakening of the Jones Act or adverse changes in the interpretation of the Jones Act; drydocking delays and cost overruns and related risks; vessel accidents, pollution incidents or other events resulting in lost revenues, fines, penalties or other expenses that are unrecoverable from insurance policies or other third parties; unexpected litigation and insurance expenses; other industry risks; fluctuations in foreign currency valuations compared to the U.S. dollar and risks associated with expanded foreign operations, such as non-compliance with or the unanticipated effect of tax laws, customs laws, immigration laws, or other

36

legislation that result in higher than anticipated tax rates or other costs; the possible loss or material limitation of the Company's tax net operating loss carryforwards and other attributes due to a change in control, as defined in Section 382 of the Internal Revenue Code; or the inability of the Company to refinance or otherwise retire certain funded debt obligations that come due in 2019, 2020 and 2021; or the potential for any impairment charges that could arise in the future and that would reduce the Company’s consolidated net tangible assets which, in turn, would further limit the Company’s ability to grant certain liens, make certain investments, and incur certain debt under the Company’s senior notes indentures and the Credit Facility. In addition, the Company’s future results may be impacted by adverse economic conditions, such as inflation, deflation, or lack of liquidity in the capital markets, that may negatively affect it or parties with whom it does business resulting in their non-payment or inability to perform obligations owed to the Company, such as the failure of customers to fulfill their contractual obligations or the failure by individual lenders to provide funding under the Company’s Credit Facility, if and when required. Further, the Company can give no assurance regarding when and to what extent it will effect common stock or note repurchases. Should one or more of the foregoing risks or uncertainties materialize in a way that negatively impacts the Company, or should the Company’s underlying assumptions prove incorrect, the Company’s actual results may vary materially from those anticipated in its forward-looking statements, and its business, financial condition and results of operations could be materially and adversely affected and, if sufficiently severe, could result in noncompliance with certain covenants of the Company's existing indebtedness. Additional factors that you should consider are set forth in detail in the “Risk Factors” section of the Company's most recent Annual Report on Form 10-K as well as other filings the Company has made and will make with the Securities and Exchange Commission which, after their filing, can be found on the Company’s website, www.hornbeckoffshore.com.

Item 3—Quantitative and Qualitative Disclosures About Market Risk

There have been no material changes to the market risk disclosures set forth in Item 7A in our Annual Report on Form 10-K for the year ended December 31, 2017.

Item 4—Controls and Procedures

Disclosure Controls and Procedures

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of our disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) as of the end of the period covered by this report. Based on that evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that, as of the end of such period, our disclosure controls and procedures were effective to ensure that information required to be disclosed by us in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosures.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting that occurred during the quarter ended June 30, 2018 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II—OTHER INFORMATION

Item 1—Legal Proceedings

None.

Item 1A—Risk Factors

There were no changes to the risk factors previously disclosed in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2017.

Item 2—Unregistered Sales of Equity Securities and Use of Proceeds

None.

Item 3—Defaults Upon Senior Securities

None.

Item 4—Mine Safety Disclosures

None.

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Item 5—Other Information

Glossary of Terms Currently Used in Our SEC Filings

"2019 convertible senior notes" or "2019 notes" means 1.500% convertible senior notes due 2019;

"2020 senior notes" or "2020 notes" means 5.875% senior notes due 2020;

"2021 senior notes" or "2021 notes" means 5.000% senior notes due 2021;

“AHTS” means anchor-handling towing supply;

“ASC” means Financial Accounting Standards Board Accounting Standards Codification;

“average dayrate” means, when referring to OSVs or MPSVs, average revenues per day, which includes charter hire, crewing services and net brokerage revenues, based on the number of days during the period that the OSVs or MPSVs, as applicable, generated revenues. For purposes of vessel brokerage arrangements, this calculation excludes that portion of revenues that is equal to the cost of in-chartering third-party equipment paid by customers;

"BOEM" means the Bureau of Ocean Energy Management;

"BSEE" means the Bureau of Safety and Environmental Enforcement;

"cabotage laws" means laws pertaining to the privilege of operating vessels in the navigable waters of a nation;

“coastwise trade” means the transportation of merchandise or passengers by water, or by land and water, between points in the United States, either directly or via a foreign port;

“conventional” means, when referring to OSVs, vessels that are at least 30 years old, are generally less than 200’ in length or carry less than 1,500 deadweight tons of cargo when originally built and primarily operate, when active, on the continental shelf;

“deepwater” means offshore areas, generally 1,000’ to 5,000’ in depth;

“Deepwater Horizon incident” means the subsea blowout and resulting oil spill at the Macondo well site in the GoM in April 2010 and subsequent sinking of the Deepwater Horizon drilling rig;

“deep-well” means a well drilled to a true vertical depth of 15,000’ or greater, regardless of whether the well was drilled in the shallow water of the Outer Continental Shelf or in the deepwater or ultra-deepwater;

“DOI” means U.S. Department of the Interior and all its various sub-agencies, including effective October 1, 2011 the Bureau of Ocean Energy Management (“BOEM”), which handles offshore leasing, resource evaluation, review and administration of oil and gas exploration and development plans, renewable energy development, National Environmental Policy Act analysis and environmental studies, and the Bureau of Safety and Environmental Enforcement (“BSEE”) which is responsible for the safety and enforcement functions of offshore oil and gas operations, including the development and enforcement of safety and environmental regulations, permitting of offshore exploration, development and production activities, inspections, offshore regulatory programs, oil spill response and newly formed training and environmental compliance programs; BOEM and BSEE being successor entities to the Bureau of Ocean Energy Management, Regulation and Enforcement (“BOEMRE”), which effective June 2010 was the successor entity to the Minerals Management Service;

“domestic public company OSV peer group” includes Gulfmark Offshore, Inc. (NYSE:GLF), SEACOR Holdings Inc. (NYSE:CKH) and Tidewater Inc. (NYSE:TDW);

“DP-1”, “DP-2” and “DP-3” mean various classifications of dynamic positioning systems on new generation vessels to automatically maintain a vessel’s position and heading through anchor-less station-keeping;

“DWT” means deadweight tons;

“effective dayrate” means the average dayrate multiplied by the average utilization rate;

“EIA” means the U.S. Energy Information Administration;

39

"EPA" means United States Environmental Protection Agency;

“flotel” means on-vessel accommodations services, such as lodging, meals and office space;

"GAAP" means United States generally accepted accounting principles;

“GoM” means the U.S. Gulf of Mexico;

“high-specification” or “high-spec” means, when referring to new generation OSVs, vessels with cargo-carrying capacity of greater than 2,500 DWT (i.e., 240 class OSV notations or higher), and dynamic-positioning systems with a DP-2 classification or higher; and, when referring to jack-up drilling rigs, rigs capable of working in 400-ft. of water depth or greater, with hook-load capacity of 2,000,000 lbs. or greater, with cantilever reach of 70-ft. or greater; and minimum quarters capacity of 150 berths or more and dynamic-positioning systems with a DP-2 classification or higher;

"IHS-CERA" means the division of IHS Inc. focused on providing knowledge and independent analysis on energy markets, geopolitics, industry trends and strategy;

"IHS-Petrodata" means the division of IHS Inc. focused on providing data, information, and market intelligence to the offshore energy industry;

“IRM” means inspection, repair and maintenance, also known as “IMR,” or inspection, maintenance and repair, depending on regional preference;

“Jones Act” means the U.S. cabotage law known as the Merchant Marine Act of 1920, as amended;

“Jones Act-qualified” means, when referring to a vessel, a U.S.-flagged vessel qualified to engage in domestic coastwise trade under the Jones Act;

“long-term contract” means a time charter of one year or longer in duration;

“Macondo” means the well site location in the deepwater GoM where the Deepwater Horizon incident occurred as well as such incident itself;

“MPSV” means a multi-purpose support vessel;

“MSRC” means the Marine Spill Response Corporation;

“new generation” means, when referring to OSVs, modern, deepwater-capable vessels subject to the regulations promulgated under the International Convention on Tonnage Measurement of Ships, 1969, which was adopted by the United States and made effective for all U.S.-flagged vessels in 1992 and foreign-flagged equivalent vessels;

“OPA 90” means the Oil Pollution Act of 1990;

“OSV” means an offshore supply vessel, also known as a “PSV,” or platform supply vessel, depending on regional preference;

“PEMEX” means Petroleos Mexicanos;

“Petrobras” means Petroleo Brasileiro S.A.;

“public company OSV peer group” means SEACOR Marine Holdings Inc. (NYSE:SMHI), GulfMark Offshore, Inc. (NYSE:GLF), Tidewater Inc. (NYSE:TDW), Solstad Offshore (NO:SOFF), DOF ASA (NO:DOF), Siem Offshore (NO:SIOFF), Groupe Bourbon SA (GBB:FP), Havila Shipping ASA (NO:HAVI) and/or Eidesvik Offshore (NO:EIOF);

“ROV” means a remotely operated vehicle;

"USCG" means United States Coast Guard;

“ultra-deepwater” means offshore areas, generally more than 5,000’ in depth; and

“ultra high-specification” or “ultra high-spec” means, when referring to new generation OSVs, vessels with cargo-carrying capacity of greater than 5,000 DWT (i.e., 300 class OSV notations or higher), and dynamic-positioning systems with a DP-2 classification or higher.

40

Item 6—Exhibits

Exhibit Index

Exhibit Number		Description of Exhibit
3.1	—	Second Restated Certificate of Incorporation of the Company, as amended (incorporated by reference to Exhibit 3.1 to the Company’s Form 10-Q for the quarter ended March 31, 2005).
3.2	—	Fourth Restated Bylaws of the Company adopted June 30, 2004 (incorporated by reference to Exhibit 3.3 to the Company’s Form 10-Q for the quarter ended June 30, 2004).
3.3	—	Amendment No. 1 to Fourth Restated Bylaws of the Company adopted June 21, 2012 (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed June 27, 2012).
3.4	—	Amended and Restated Certificate of Designation of Series A Junior Participating Preferred Stock filed with the Secretary of State of the State of Delaware on July 2, 2013 (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed July 3, 2013).
4.1	—	Specimen stock certificates for the Company’s common stock, $0.01 par value (for U.S. citizens and non-U.S. citizens) (incorporated by reference to Exhibit 4.4 to the Company’s Form 8-A/A filed July 3, 2013, Registration No. 001-32108).
4.2	—	Indenture, dated March 16, 2012 among Hornbeck Offshore Services, Inc., as issuer, the guarantors party thereto and Wells Fargo Bank, National Association, as trustee (including form of 5.875% Senior Notes due 2020) (incorporated by reference to Exhibit 4.2 to the Company’s Current Report on Form 8-K filed March 21, 2012).
4.3	—	Indenture dated as of August 13, 2012 by and among Hornbeck Offshore Services, Inc., the guarantors named therein, and Wells Fargo Bank, National Association, as Trustee (including form of 1.500% Convertible Senior Notes due 2019) (incorporated by reference to Exhibit 4.1 to the Company’s Current Report on Form 8-K filed on August 13, 2012).
4.4	—	Confirmation of Base Call Option Transaction dated as of August 7, 2012 by and between Hornbeck Offshore Services, Inc. and Barclays Bank PLC (incorporated by reference to Exhibit 4.2 to the Company’s Current Report on Form 8-K filed on August 13, 2012).
4.5	—	Confirmation of Base Call Option Transaction dated as of August 7, 2012 by and between Hornbeck Offshore Services, Inc. and JPMorgan Chase Bank, National Association, London Branch (incorporated by reference to Exhibit 4.3 to the Company’s Current Report on Form 8-K filed on August 13, 2012).
4.6	—	Confirmation of Base Call Option Transaction dated as of August 7, 2012 by and between Hornbeck Offshore Services, Inc. and Wells Fargo Bank, National Association (incorporated by reference to Exhibit 4.4 to the Company’s Current Report on Form 8-K filed on August 13, 2012).
4.7	—	Confirmation of Additional Base Call Option Transaction dated as of August 8, 2012 by and between Hornbeck Offshore Services, Inc. and Barclays Bank PLC (incorporated by reference to Exhibit 4.5 to the Company’s Current Report on Form 8-K filed on August 13, 2012).

41

Exhibit Number		Description of Exhibit
4.8	—	Confirmation of Additional Base Call Option Transaction dated as of August 8, 2012 by and between Hornbeck Offshore Services, Inc. and JPMorgan Chase Bank, National Association, London Branch (incorporated by reference to Exhibit 4.6 to the Company’s Current Report on Form 8-K filed on August 13, 2012).
4.9	—	Confirmation of Additional Base Call Option Transaction dated as of August 8, 2012 by and between Hornbeck Offshore Services, Inc. and Wells Fargo Bank, National Association (incorporated by reference to Exhibit 4.7 to the Company’s Current Report on Form 8-K filed on August 13, 2012).
4.10	—	Confirmation of Base Warrant dated as of August 7, 2012 by and between Hornbeck Offshore Services, Inc. and Barclays Bank PLC (incorporated by reference to Exhibit 4.8 to the Company’s Current Report on Form 8-K filed on August 13, 2012).
4.11	—	Confirmation of Base Warrant dated as of August 7, 2012 by and between Hornbeck Offshore Services, Inc. and JPMorgan Chase Bank, National Association, London Branch (incorporated by reference to Exhibit 4.9 to the Company’s Current Report on Form 8-K filed on August 13, 2012).
4.12	—	Confirmation of Base Warrant dated as of August 7, 2012 by and between Hornbeck Offshore Services, Inc. and Wells Fargo Bank, National Association (incorporated by reference to Exhibit 4.10 to the Company’s Current Report on Form 8-K filed on August 13, 2012).
4.13	—	Confirmation of Additional Warrants dated as of August 8, 2012 by and between Hornbeck Offshore Services, Inc. and Barclays Bank PLC (incorporated by reference to Exhibit 4.11 to the Company’s Current Report on Form 8-K filed on August 13, 2012).
4.14	—	Confirmation of Additional Warrants dated as of August 8, 2012 by and between Hornbeck Offshore Services, Inc. and JPMorgan Chase Bank, National Association, London Branch (incorporated by reference to Exhibit 4.12 to the Company’s Current Report on Form 8-K filed on August 13, 2012).
4.15	—	Confirmation of Additional Warrants dated as of August 8, 2012 by and between Hornbeck Offshore Services, Inc. and Wells Fargo Bank, National Association (incorporated by reference to Exhibit 4.13 to the Company’s Current Report on Form 8-K filed on August 13, 2012).
4.16	—	Indenture governing the 5.000% Notes, dated March 28, 2013 among Hornbeck Offshore Services, Inc., as issuer, the guarantors party thereto and Wells Fargo Bank, National Association, as trustee (including form of 5.000% Senior Notes due 2021) (incorporated by reference to Exhibit 4.2 to the Company’s Current Report on Form 8-K filed on March 28, 2013).
4.17	—	Rights Agreement dated as of July 1, 2013 between Hornbeck Offshore Services, Inc. and Computershare Inc., as Rights Agent, which includes as Exhibit A the Amended and Restated Certificate of Designation of Series A Preferred Stock, as Exhibit B the form of Right Certificate and as Exhibit C the form of Summary of Rights to Purchase Shares (incorporated by reference to Exhibit 4.1 to the Company’s Current Report on Form 8-K filed July 3, 2013).
4.18	—	First Supplemental Indenture, dated October 6, 2015 among Hornbeck Offshore Services, Inc., the guarantors party thereto and Wells Fargo Bank, National Association, as trustee (to the indenture governing the 1.5% Convertible Senior Notes due 2019).

42

Exhibit Number		Description of Exhibit
4.19	—	First Supplemental Indenture, dated October 6, 2015 among Hornbeck Offshore Services, Inc., the guarantors party thereto and Wells Fargo Bank, National Association, as trustee (to the indenture governing the 5.875% Senior Notes due 2020).
4.20	—	First Supplemental Indenture, dated October 6, 2015 among Hornbeck Offshore Services, Inc., the guarantors party thereto and Wells Fargo Bank, National Association, as trustee (to the indenture governing the 5.000% Senior Notes due 2021).
4.21	—	Form of Call Option Termination Agreement dated as of June 2017 by and between Hornbeck Offshore Services, Inc. and the applicable counterparty.
4.22	—	Form of Warrant Termination Agreement dated as of June 2017 by and between Hornbeck Offshore Services, Inc. and the applicable counterparty.
*4.23	—	Second Supplemental Indenture, dated May 17, 2018 among Hornbeck Offshore Services, Inc., the guarantors party thereto and Wells Fargo Bank, National Association, as trustee (to the indenture governing the 1.5% convertible Senior Notes due 2019).
*4.24	—	Second Supplemental Indenture, dated May 17, 2018 among Hornbeck Offshore Services, Inc., the guarantors party thereto and Wells Fargo Bank, National Association, as trustee (to the indenture governing the 5.875% Senior Notes due 2020).
*4.25	—	Second Supplemental Indenture, dated May 17, 2018 among Hornbeck Offshore Services, Inc., the guarantors party thereto and Wells Fargo Bank, National Association, as trustee (to the indenture governing the 5.000% Senior Notes due 2021).
10.1	—	First Lien Term Loan Agreement dated as of June 15, 2017 by and among the Company, as Parent Borrower, Hornbeck Offshore Services, LLC, as Co-Borrower, Wilmington Trust, National Association, as Administrative Agent, Wilmington Trust, National Association, as Collateral Agent, and the lenders party thereto (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed June 16, 2017).
10.2	—	First Lien Guaranty and Collateral Agreement dated as of June 15, 2017 by and among the Company, as Parent Borrower, Hornbeck Offshore Services, LLC, as Co-Borrower, Wilmington Trust, National Association, as Collateral Agent, and the obligors signatory thereto (incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed June 16, 2017).
10.3	—	First Amendment to First Lien Term Loan Agreement dated as of June 15, 2017 by and among the Company, as Parent Borrower, Hornbeck Offshore Services, LLC, as Co-Borrower, Wilmington Trust, National Association, as Administrative Agent, Wilmington Trust, National Association, as Collateral Agent, and the lenders party thereto with accompanying Exhibit A (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed March 29, 2018).
10.40	—	Form of Amended Appendix A to Employment Agreements for Named Executive Officers.
*31.1	—	Certification of the Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
*31.2	—	Certification of the Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
*32.1	—	Certification of the Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
*32.2	—	Certification of the Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

43

Exhibit Number		Description of Exhibit
*101	—	Interactive Data File
* Filed herewith.

44

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this Quarterly Report on Form 10-Q to be signed on its behalf by the undersigned thereunto duly authorized.

	Hornbeck Offshore Services, Inc.
Date: August 9, 2018	/s/    JAMES O. HARP, JR.
	James O. Harp, Jr.
	Executive Vice President and Chief Financial Officer

45

EX-4.23

Exhibit 4.23

HORNBECK OFFSHORE SERVICES, INC.and
the Guarantors named herein1.5% Convertible Senior Notes due 2019SECOND SUPPLEMENTAL INDENTUREDated as of May 17, 2018
____________________
WELLS FARGO BANK, NATIONAL ASSOCIATION
Trustee

SECOND SUPPLEMENTAL INDENTURE

THIS SECOND SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of May 17, 2018, among HOI Holding, LLC, a Delaware limited liability company, HOS Holding, LLC, a Delaware limited liability company (each a “Guaranteeing Subsidiary” and together the “Guaranteeing Subsidiaries”), each an indirect wholly-owned subsidiary of Hornbeck Offshore Services, Inc. (or its permitted successor), a Delaware corporation (the “Company”), the Company, the other Guarantors (as defined in the Indenture referred to herein) and Wells Fargo Bank, National Association, as trustee under the Indenture referred to below (the “Trustee”).

WITNESSETH

WHEREAS, the Company has heretofore executed and delivered to the Trustee an Indenture, dated as of August 13, 2012 (the “Indenture”), providing for the issuance of 1.500% Convertible Senior Notes due 2019 (the “Securities”);

WHEREAS, the Indenture provides that under certain circumstances each Guaranteeing Subsidiary shall execute and deliver to the Trustee a supplemental indenture pursuant to which such Guaranteeing Subsidiary shall unconditionally guarantee all of the Company’s Obligations under the Securities and the Indenture on the terms and conditions set forth herein (the “Subsidiary Guarantee”); and

WHEREAS, pursuant to Section 3.09 of the Indenture, the Trustee is authorized to execute and deliver this Supplemental Indenture.

NOW THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, each Guaranteeing Subsidiary and the Trustee mutually covenant and agree for the equal and ratable benefit of the Holders of the Securities as follows:

1. Capitalized Terms. Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture.

2. Agreement to Guarantee. Each Guaranteeing Subsidiary hereby agrees to provide an unconditional Guarantee on the terms and subject to the conditions set forth in the Subsidiary Guarantee and in the Indenture including but not limited to Article 13 thereof.

3. No Recourse Against Others. No past, present or future director, officer, employee, incorporator, stockholder or agent of any Guaranteeing Subsidiary (other than the Company or a Guarantor in its capacity as a stockholder of a Subsidiary), as such, shall have any liability for any obligations of the Company or any Guaranteeing Subsidiary under the Securities, any Subsidiary

Guarantees, the Indenture or this Supplemental Indenture or for any claim based on, in respect of or by reason of, such obligations or their creation. Each Holder of the Securities by accepting a Security waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Securities. Such waiver may not be effective to waive liabilities under the federal securities laws and it is the view of the SEC that such a waiver is against public policy.

4. New York Law to Govern. THE INTERNAL LAW OF THE STATE OF NEW YORK SHALL GOVERN AND BE USED TO CONSTRUE THIS SUPPLEMENTAL INDENTURE.

5. Counterparts. The parties may sign any number of copies of this Supplemental Indenture. Each signed copy shall be an original, but all of them together represent the same agreement.

6. Effect of Headings. The Section headings herein are for convenience only and shall not affect the construction hereof.

7. The Trustee. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the Guaranteeing Subsidiaries and the Company.

IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed, all as of the date first written above.

HORNBECK OFFSHORE SERVICES, INC.
By:	/s/ James O. Harp, Jr.
	Name: James O. Harp, Jr.
	Title: Executive Vice President and Chief Financial Officer

GUARANTORS:
ENERGY SERVICES PUERTO RICO, LLC
HORNBECK OFFSHORE SERVICES, LLC
HORNBECK OFFSHORE TRANSPORTATION, LLC
HORNBECK OFFSHORE OPERATORS, LLC
HOS-IV, LLC
HORNBECK OFFSHORE TRINIDAD & TOBAGO, LLC
HOS PORT, LLC
HORNBECK OFFSHORE INTERNATIONAL, LLC
HOI HOLDING, LLC
HOS HOLDING, LLC
By:	/s/ James O. Harp, Jr.
	Name: James O. Harp, Jr.
	Title: Executive Vice President and Chief Financial Officer
WELLS FARGO BANK, NATIONAL ASSOCIATION,
as Trustee
By:	/s/ Tina D. Gonzalez
	Name: Tina D. Gonzalez
	Title: Vice President

EX-4.24

Exhibit 4.24

HORNBECK OFFSHORE SERVICES, INC.and
the Guarantors named herein
Series A and Series B
5.875% Senior Notes due 2020SECOND SUPPLEMENTAL INDENTUREDated as of May 17, 2018
____________________
WELLS FARGO BANK, NATIONAL ASSOCIATION
Trustee

This SECOND SUPPLEMENTAL INDENTURE, dated as of May 17, 2018, is among Hornbeck Offshore Services, Inc., a Delaware corporation (the "Company"), each of the parties identified under the caption "Guarantors" on the signature page hereto, including HOI Holding, LLC, a Delaware limited liability company (“HOI Holding”), and HOS Holding, LLC, a Delaware limited liability company (“HOS Holding”), (collectively, the "Guarantors") and Wells Fargo Bank, National Association, a national banking association, as Trustee.

RECITALS

WHEREAS, the Company, certain Guarantors and the Trustee entered into an Indenture, dated as of March 16, 2012 (the "Indenture"), pursuant to which the Company has originally issued $375,000,000 in principal amount of 5.875% Senior Notes due 2020 (the "Notes"); and

WHEREAS, Section 9.01 (f) of the Indenture provides that the Company, the Guarantors and the Trustee may amend or supplement the Indenture in order to add any new Guarantor to comply with Section 10.02 or 10.03 thereof, without the consent of the Holders of the Notes; and

WHEREAS, each of HOI Holding and HOS Holding has guaranteed the indebtedness related to the Company’s First Lien Term Loan Agreement, as amended, and, as such, is required pursuant to Sections 4.13 and 10.02 of the Indenture to execute this Supplemental Indenture and a notation of guarantee of Notes; and

WHEREAS, all acts and things prescribed by the Indenture, by law and by the charter and the bylaws (or comparable constituent documents) of the Company, of the Guarantors and of the Trustee necessary to make this Supplemental Indenture a valid instrument legally binding on the Company, the Guarantors and the Trustee, in accordance with its terms, have been duly done and performed;

NOW, THEREFORE, to comply with the provisions of the Indenture and in consideration of the above premises, the Company, the Guarantors and the Trustee covenant and agree for the equal and proportionate benefit of the respective Holders of the Notes as follows:

ARTICLE 1

SECTION 1.01. This Supplemental Indenture is supplemental to the Indenture and does and shall be deemed to form a part of, and shall be construed in connection with and as part of, the Indenture for any and all purposes.

SECTION 1.02. This Supplemental Indenture shall become effective immediately upon its execution and delivery by each of the Company, the Guarantors and the Trustee.

ARTICLE 2

From this date, in accordance with Section 10.02 or 10.03 and by executing this Supplemental Indenture and the accompanying notation of Subsidiary Guarantee (a copy of which is attached hereto), the Guarantors whose signatures appear below are subject to the provisions of the Indenture to the extent provided for in Article 10 thereunder.

ARTICLE 3

SECTION 3.01. Except as specifically modified herein, the Indenture and the Notes are in all respects ratified and confirmed (mutatis mutandis) and shall remain in full force and effect in accordance with their terms with all capitalized terms used herein without definition having the same respective meanings ascribed to them as in the Indenture.

SECTION 3.02. Except as otherwise expressly provided herein, no duties, responsibilities or liabilities are assumed, or shall be construed to be assumed, by the Trustee by reason of this Supplemental Indenture. This Supplemental Indenture is executed and accepted by the Trustee subject to all the terms and conditions set forth in the Indenture with the same force and effect as if those terms and conditions were repeated at length herein and made applicable to the Trustee with respect hereto.

SECTION 3.03. THE LAW OF THE STATE OF NEW YORK SHALL GOVERN AND BE USED TO CONSTRUE AND ENFORCE THIS SUPPLEMENTAL INDENTURE.

SECTION 3.04. The parties may sign any number of copies of this Supplemental Indenture. Each signed copy shall be an original, but all of such executed copies together shall represent the same agreement. The exchange of copies of this Supplemental Indenture and of signature pages by facsimile or PDF transmission shall constitute effective execution and delivery of this Supplemental Indenture as to the parties hereto and may be used in lieu of the original Supplemental Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes.

IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed, all as of the date first written above.

HORNBECK OFFSHORE SERVICES, INC.
By:	/s/ James O. Harp, Jr.
	Name: James O. Harp, Jr.
	Title: Executive Vice President and Chief Financial Officer

GUARANTORS:
ENERGY SERVICES PUERTO RICO, LLC
HORNBECK OFFSHORE SERVICES, LLC
HORNBECK OFFSHORE TRANSPORTATION, LLC
HORNBECK OFFSHORE OPERATORS, LLC
HOS-IV, LLC
HORNBECK OFFSHORE TRINIDAD & TOBAGO, LLC
HOS PORT, LLC
HORNBECK OFFSHORE INTERNATIONAL, LLC
HOI HOLDING, LLC
HOS HOLDING, LLC
By:	/s/ James O. Harp, Jr.
	Name: James O. Harp, Jr.
	Title: Executive Vice President and Chief Financial Officer
WELLS FARGO BANK, NATIONAL ASSOCIATION,
as Trustee
By:	/s/ Tina D. Gonzalez
	Name: Tina D. Gonzalez
	Title: Vice President

EX-4.25

Exhibit 4.25

HORNBECK OFFSHORE SERVICES, INC.

and
the Guarantors named herein
Series A and Series B
5.000% Senior Notes due 2021SECOND SUPPLEMENTAL INDENTURE
Dated as of May 17, 2018
____________________
WELLS FARGO BANK, NATIONAL ASSOCIATION
Trustee

This SECOND SUPPLEMENTAL INDENTURE, dated as of May 17, 2018, is among Hornbeck Offshore Services, Inc., a Delaware corporation (the "Company"), each of the parties identified under the caption "Guarantors" on the signature page hereto, including HOI Holding, LLC, a Delaware limited liability company (“HOI Holding”), and HOS Holding, LLC, a Delaware limited liability company (“HOS Holding”), (collectively, the "Guarantors") and Wells Fargo Bank, National Association, a national banking association, as Trustee.

RECITALS

WHEREAS, the Company, certain Guarantors and the Trustee entered into an Indenture, dated as of March 28, 2013 (the "Indenture"), pursuant to which the Company has originally issued $450,000,000 in principal amount of 5.000% Senior Notes due 2021 (the "Notes"); and

WHEREAS, Section 9.01 (f) of the Indenture provides that the Company, the Guarantors and the Trustee may amend or supplement the Indenture in order to add any new Guarantor to comply with Section 10.02 or 10.03 thereof, without the consent of the Holders of the Notes; and

WHEREAS, each of HOI Holding and HOS Holding has guaranteed the indebtedness related to the Company’s First Lien Term Loan Agreement, as amended, and, as such, is required pursuant to Sections 4.13 and 10.02 of the Indenture to execute this Supplemental Indenture and a notation of guarantee of Notes; and

WHEREAS, all acts and things prescribed by the Indenture, by law and by the charter and the bylaws (or comparable constituent documents) of the Company, of the Guarantors and of the Trustee necessary to make this Supplemental Indenture a valid instrument legally binding on the Company, the Guarantors and the Trustee, in accordance with its terms, have been duly done and performed;

NOW, THEREFORE, to comply with the provisions of the Indenture and in consideration of the above premises, the Company, the Guarantors and the Trustee covenant and agree for the equal and proportionate benefit of the respective Holders of the Notes as follows:

ARTICLE 1

SECTION 1.01. This Supplemental Indenture is supplemental to the Indenture and does and shall be deemed to form a part of, and shall be construed in connection with and as part of, the Indenture for any and all purposes.

SECTION 1.02. This Supplemental Indenture shall become effective immediately upon its execution and delivery by each of the Company, the Guarantors and the Trustee.

ARTICLE 2

From this date, in accordance with Section 10.02 or 10.03 and by executing this Supplemental Indenture and the accompanying notation of Subsidiary Guarantee (a copy of which is attached hereto), the Guarantors whose signatures appear below are subject to the provisions of the Indenture to the extent provided for in Article 10 thereunder.

ARTICLE 3

SECTION 3.01. Except as specifically modified herein, the Indenture and the Notes are in all respects ratified and confirmed (mutatis mutandis) and shall remain in full force and effect in accordance with their terms with all capitalized terms used herein without definition having the same respective meanings ascribed to them as in the Indenture.

SECTION 3.02. Except as otherwise expressly provided herein, no duties, responsibilities or liabilities are assumed, or shall be construed to be assumed, by the Trustee by reason of this Supplemental Indenture. This Supplemental Indenture is executed and accepted by the Trustee subject to all the terms and conditions set forth in the Indenture with the same force and effect as if those terms and conditions were repeated at length herein and made applicable to the Trustee with respect hereto.

SECTION 3.03. THE LAW OF THE STATE OF NEW YORK SHALL GOVERN AND BE USED TO CONSTRUE AND ENFORCE THIS SUPPLEMENTAL INDENTURE.

SECTION 3.04. The parties may sign any number of copies of this Supplemental Indenture. Each signed copy shall be an original, but all of such executed copies together shall represent the same agreement. The exchange of copies of this Supplemental Indenture and of signature pages by facsimile or PDF transmission shall constitute effective execution and delivery of this Supplemental Indenture as to the parties hereto and may be used in lieu of the original Supplemental Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes.

IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed, all as of the date first written above.

HORNBECK OFFSHORE SERVICES, INC.
By:	/s/ James O. Harp, Jr.
	Name: James O. Harp, Jr.
	Title: Executive Vice President and Chief Financial Officer

GUARANTORS:
ENERGY SERVICES PUERTO RICO, LLC
HORNBECK OFFSHORE SERVICES, LLC
HORNBECK OFFSHORE TRANSPORTATION, LLC
HORNBECK OFFSHORE OPERATORS, LLC
HOS-IV, LLC
HORNBECK OFFSHORE TRINIDAD & TOBAGO, LLC
HOS PORT, LLC
HORNBECK OFFSHORE INTERNATIONAL, LLC
HOI HOLDING, LLC
HOS HOLDING, LLC
By:	/s/ James O. Harp, Jr.
	Name: James O. Harp, Jr.
	Title: Executive Vice President and Chief Financial Officer
WELLS FARGO BANK, NATIONAL ASSOCIATION,
as Trustee
By:	/s/ Tina D. Gonzalez
	Name: Tina D. Gonzalez
	Title: Vice President

EX-31.1

EXHIBIT 31.1

CERTIFICATION

I, Todd M. Hornbeck, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Hornbeck Offshore Services, Inc.;

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

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

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

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

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

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

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

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

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

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

Date: August 9, 2018	/s/ Todd M. Hornbeck
	Todd M. Hornbeck
	Chief Executive Officer
	(Principal Executive Officer)

EX-31.2

EXHIBIT 31.2

CERTIFICATION

I, James O. Harp, Jr., certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Hornbeck Offshore Services, Inc.;

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

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

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

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

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

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

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

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

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

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

Date: August 9, 2018	/s/ James O. Harp, Jr
	James O. Harp, Jr.
	Executive Vice President and
	Chief Financial Officer (Principal Financial Officer)

EX-32.1

EXHIBIT 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906 OF

THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Hornbeck Offshore Services, Inc., a Delaware corporation (the “Company”), on Form 10-Q for the quarter ended June 30, 2018, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Todd M. Hornbeck, Chairman, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. Information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: August 9, 2018	/s/ Todd M. Hornbeck
	Todd M. Hornbeck
	Chairman, President and Chief Executive Officer

EX-32.2

EXHIBIT 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906 OF

THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Hornbeck Offshore Services, Inc., a Delaware corporation (the “Company”), on Form 10-Q for the quarter ended June 30, 2018, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, James O. Harp, Jr., Executive Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. Information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: August 9, 2018	/s/ James O. Harp, Jr.
	James O. Harp, Jr.
	Executive Vice President and Chief Financial Officer

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 31, 2018
Document And Entity Information [Abstract]
Entity Registrant Name	HORNBECK OFFSHORE SERVICES INC /LA
Entity Central Index Key	0001131227
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q2
Trading Symbol	HOS
Amendment Flag	false
Entity Common Stock, Shares Outstanding		37,595,348

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 109,065	$ 186,849
Accounts receivable, net of allowance for doubtful accounts of $6,103 and $6,054, respectively	57,073	44,702
Other current assets	16,006	16,890
Total current assets	182,144	248,441
Property, plant and equipment, net	2,482,733	2,501,013
Deferred charges, net	17,846	12,812
Other assets	6,436	6,612
Total assets	2,689,159	2,768,878
Current liabilities:
Accounts payable	19,615	16,196
Accrued interest	15,790	14,734
Accrued payroll and benefits	12,364	9,475
Other accrued liabilities	13,018	8,457
Total current liabilities	60,787	48,862
Long-term debt, including deferred gain of $17,457 and $18,911, and net of original issue discount of $5,822 and $7,862 and deferred financing costs of $8,452 and $10,134, respectively	1,083,094	1,080,826
Deferred tax liabilities, net	179,124	197,465
Other liabilities	2,522	3,801
Total liabilities	1,325,527	1,330,954
Stockholders’ equity:
Preferred stock: $0.01 par value; 5,000 shares authorized; no shares issued and outstanding	0	0
Common stock: $0.01 par value; 100,000 shares authorized; 37,595 and 37,144 shares issued and outstanding, respectively	376	371
Additional paid-in-capital	760,939	760,278
Retained earnings	604,855	668,598
Accumulated other comprehensive income (loss)	(2,538)	8,677
Total stockholders’ equity	1,363,632	1,437,924
Total liabilities and stockholders’ equity	$ 2,689,159	$ 2,768,878

XML

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Accounts receivable, net of allowance for doubtful accounts of	$ 6,103	$ 6,054
Debt Instrument, unamortized discount	5,822	7,862
Deferred financing costs	8,452	10,134
Deferred Gain	$ 18,251	$ 18,911
Preferred stock par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock shares authorized	5,000,000	5,000,000
Preferred stock issued	0	0
Preferred stock outstanding	0	0
Common stock Par Value (in dollars per share)	$ 0.01	$ 0.01
Common stock shares authorized	100,000,000	100,000,000
Common stock issued	37,595,000	37,144,000
Common stock outstanding	37,595,000	37,144,000

XML

Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues:
Vessel revenues	$ 49,481	$ 29,339	$ 82,615	$ 65,188
Non-vessel revenues	8,950	8,087	17,403	16,317
Revenues	58,431	37,426	100,018	81,505
Costs and expenses:
Operating expenses	34,858	31,368	70,827	59,303
Depreciation	24,630	24,679	49,278	49,356
Amortization	2,256	3,266	4,248	6,990
General and administrative expenses	12,246	9,432	25,121	23,674
Costs and Expenses, Total	73,990	68,745	149,474	139,323
Gain (loss) on sale of assets	(13)	1	30	19
Operating loss	(15,572)	(31,318)	(49,426)	(57,799)
Gain on Extinguishment of Debt	0	15,478	0	15,478
Other income (expense):
Interest income	519	464	1,163	865
Interest expense	(16,401)	(13,429)	(30,346)	(27,238)
Other income (expense), net	(72)	54	(63)	(269)
Nonoperating Income (Expense)	(15,954)	2,567	(29,246)	(11,164)
Loss before income taxes	(31,526)	(28,751)	(78,672)	(68,963)
Income tax benefit	(6,438)	(9,262)	(14,929)	(21,576)
Net loss	$ (25,088)	$ (19,489)	$ (63,743)	$ (47,387)
Loss per share:
Basic loss per common share	$ (0.67)	$ (0.53)	$ (1.70)	$ (1.29)
Diluted loss per common share	$ (0.67)	$ (0.53)	$ (1.70)	$ (1.29)
Weighted average basic shares outstanding	37,496	36,769	37,419	36,683
Weighted average diluted shares outstanding	37,496	36,769	37,419	36,683

XML

Consolidated Statements Of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (25,088)	$ (19,489)	$ (63,743)	$ (47,387)
Other comprehensive income (loss):
Foreign currency translation loss	(10,916)	(2,976)	(11,215)	(1,207)
Total comprehensive loss	$ (36,004)	$ (22,465)	$ (74,958)	$ (48,594)

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Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (63,743)	$ (47,387)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation	49,278	49,356
Amortization	4,248	6,990
Stock-based compensation expense	4,753	3,014
Gain on Extinguishment of Debt	0	15,478
Provision for bad debts	49	4,032
Deferred tax benefit	(15,360)	(24,243)
Amortization of deferred financing costs	2,217	6,137
Gain on sale of assets	(30)	(19)
Changes in operating assets and liabilities:
Accounts receivable	(19,639)	(6,199)
Other current and long-term assets	1,038	(3,127)
Deferred drydocking charges	(3,351)	(5,955)
Accounts payable	9,427	9,124
Accrued liabilities and other liabilities	2,405	631
Accrued interest	1,055	(1,002)
Net cash used in operating activities	(27,653)	(24,126)
CASH FLOWS FROM INVESTING ACTIVITIES:
Cost Of Vessel Purchase	(40,868)	0
Costs incurred for OSV newbuild program	(2,757)	(7,063)
Net proceeds from sale of assets	57	33
Vessel capital expenditures	(5,482)	(485)
Non-vessel capital expenditures	(81)	(548)
Net cash used in investing activities	(49,131)	(8,063)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from Lines of Credit	0	980
Repurchase of Senior Debt	0	(5,057)
Repurchase of Convertible Debt	0	49,631
Deferred Financing Costs	0	5,636
Shares withheld for payment of employee withholding taxes	(536)	(573)
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options	260	258
Net cash used in financing activities	(276)	(59,659)
Effects of exchange rate changes on cash	(724)	(396)
Net decrease in cash and cash equivalents	(77,784)	(92,244)
Cash and cash equivalents at beginning of period	186,849	217,027
Cash and cash equivalents at end of period	109,065	124,783
SUPPLEMENTAL DISCLOSURES OF CASH FLOW ACTIVITIES:
Cash paid for interest	29,304	26,199
Cash paid for income taxes	650	710
SUPPLEMENTAL DISCLOSURES OF NON-CASH FINANCING ACTIVITIES:
Notes Reduction	$ 0	$ 127,096

XML

Basis of Presentation

6 Months Ended

Jun. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying unaudited consolidated financial statements do not include certain information and footnote disclosures required by United States generally accepted accounting principles, or GAAP. The interim financial statements and notes are presented as permitted by instructions to the Quarterly Report on Form 10-Q and Article 10 of Regulation S-X. In the opinion of management, all adjustments necessary for a fair presentation of the interim financial statements have been included and consist only of normal recurring items. The unaudited quarterly financial statements should be read in conjunction with the audited financial statements and notes thereto included in the Annual Report on Form 10-K of Hornbeck Offshore Services, Inc. (together with its subsidiaries, the “Company”) for the year ended December 31, 2017. The results of operations for the three and six months ended June 30, 2018 are not necessarily indicative of the results that may be expected for the year ending December 31, 2018.

The consolidated balance sheet at December 31, 2017 has been derived from the audited consolidated financial statements at that date, but does not include all of the information and footnotes required by GAAP for complete financial statements.

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Recent Accounting Pronouncements (Notes)

6 Months Ended

Jun. 30, 2018

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

New Accounting Pronouncements, Policy

Recent Accounting Pronouncements

Standard	Description	Required Date of Adoption	Effect on the financial statements and other significant matters
Standards that have been adopted
ASU No. 2014-09, "Revenue from Contracts with Customers" (Topic 606)	This standard requires entities to recognize revenues in a way that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration which the entity expects to be entitled to in exchange for those goods or services. ASU 2014-09 requires retrospective application.	January 1, 2018	This ASU replaces most existing revenue recognition guidance in U.S. GAAP. The Company adopted ASU 2014-09 on January 1, 2018 under the modified retrospective method. Based on the Company's review of its open revenue-related contracts on the date of adoption, it was determined that there was no cumulative effect of applying the new standard and therefore no adjustment to the opening retained earnings balance was needed as of January 1, 2018. See Note 3 - Revenues from Contracts with Customers for additional information.
ASU No. 2017-01, "Business Combinations" (Topic 805): Clarifying the Definition of a Business	This standard provides guidance to assist entities with evaluating when a set of transferred assets and activities is a business. ASU 2017-01 requires prospective application.	January 1, 2018	The Company adopted ASU No. 2017-01 on January 1, 2018 under the prospective application. This adoption had no impact on its consolidated financial statements.

Standards that have not been adopted
ASU No. 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments"	This standard requires measurement and recognition of expected credit losses for financial assets held. ASU No. 2016-13 requires modified retrospective application. Early adoption is permitted.	January 1, 2020	The Company believes that the implementation of this new guidance will not have a material impact on its consolidated financial statements.
ASU No. 2016-02, "Leases" (Topic 842)	This standard requires lessees to recognize a lease liability and a right-of-use asset for all leases (with the exception of short-term leases) at the commencement date. ASU 2016-02 requires a modified retrospective application. Early adoption is permitted.	January 1, 2019	The Company continues to evaluate the impact this new guidance will have on its consolidated financial statements. See further discussion below.
ASU No. 2018-02, "Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income"	This standard allows companies to reclassify items in accumulated other comprehensive income to retained earnings for stranded tax effects resulting form The Tax Cuts and Jobs Act.	January 1, 2019	The Company continues to evaluate the impact this new guidance will have on its consolidated financial statements.
ASU No. 2018-11, "Leases" (Topic 842): Targeted Improvements	This standard provides for the election of transition methods between the modified retrospective method and the optional transition relief method. The modified retrospective method is applied to all prior reporting periods presented with a cumulative-effect adjustment recorded in the earliest comparative period while the optional transition relief method is applied beginning in the period of adoption with a cumulative-effect adjustment recorded in such period. Also, this standard allows lessors to elect to not separate non-lease components from the associated lease components if certain criteria are met.	January 1, 2019	The Company continues to evaluate the impact this new guidance will have on its consolidated financial statements. See further discussion below.

ASC 842, Leases

Lessor Accounting

In July 2018, the Financial Accounting Standards Board, or FASB, issued ASU 2018-11 that allows for 1) a transition option that will allow companies to not apply the new lease standard in the comparative periods presented in their financial statements in the year of adoption and will allow the Company to continue to apply legacy guidance, ASC 840 Leases, including its disclosure requirements, for comparative periods presented, and 2) an option for lessors to combine lease and non-lease components contained within the same agreement when certain criteria are met. The Company does not expect a change in the timing or amounts of revenues recognized upon the adoption of this standard.

Lessee Accounting

The primary difference between current accounting standards and ASC 842 is the recognition of right-of-use assets and corresponding liabilities by lessees for those leases classified as operating leases under current accounting standards. The estimated impact of the adoption of this ASC based on the lease arrangements for

which the Company is the lessee as of June 30, 2018, will be an increase to assets and liabilities on the Company's financial statements to reflect the right-of-use assets and lease obligations in a range from $27.0

million to $30.0 million. The adoption of the new standard is not expected to result in a change in the amount of lease expense currently being recognized.

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Revenues From Contracts With Customers (Notes)

6 Months Ended

Jun. 30, 2018

Revenue from Contract with Customer [Abstract]

Revenue from Contract with Customer

Revenues from Contracts with Customers

Effective January 1, 2018, the Company adopted ASU 2014-09, Revenue from Contracts with Customers using the modified retrospective method. The adoption of this standard did not have a material impact on the Company's financial position or results of operations. Accordingly, the Company did not make an adjustment to the opening balance of retained earnings in order to account for the implementation of the new requirements of this standard, and it did not restate prior period information for the effects of the new standard.

The services that are provided by the Company represent a single performance obligation under our contracts that are satisfied at a point in time or over time. Revenues are earned primarily by (1) chartering the Company's vessels, including operation of such vessels, (2) providing vessel management services to third party vessel owners, and (3) providing shore-based port facility services, including rental of land. These revenue streams are provided to customers based upon contracts that include fixed or determinable prices and do not generally include right of return or other significant post-delivery obligations. The Company's vessel revenues, vessel management revenues and port facility revenues are recognized either at a point in time or over the passage of time when the customer has received or is receiving the benefit from the applicable service. Revenues are recognized when the performance obligations are satisfied in accordance with contractual terms and in an amount that reflects the consideration that the Company expects to be entitled to in exchange for the services rendered or rentals provided. Revenues are recognized net of any taxes collected from customers, which are subsequently remitted to governmental authorities. Invoices are typically billed to our customers on a monthly basis and payment terms on customer invoices typically range 30 to 60 days.

A performance obligation under contracts with the Company's customers to render services is the unit of account under Topic 606. The Company accounts for services rendered separately if they are distinct and the service is separately identifiable from other items provided to a customer and if a customer can benefit from the services rendered provided on its own or with other resources that are readily available to the customer. A contract's transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied.

As of June 30, 2018, the Company has certain remaining performance obligations representing contracted vessel revenues for which work has not been performed and such contracts have an original expected duration of more than one year. As of June 30, 2018, the aggregate amount of the transaction price allocated to remaining performance obligations for such contracts was $16.4 million, of which $15.8 million and $0.6 million are expected to be recognized in 2018 and 2019, respectively. The Company has elected to apply the optional exemption for the disclosure of the remaining performance obligations for any of its revenue streams that are expected to have a duration of one year or less and, therefore, such amounts have not been disclosed.

Disaggregation of Revenues

For the three and six months ended June 30, 2018 and 2017, the Company recognized revenues as follows (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Vessel revenues	$	49,481	$	29,339	$	82,615	$	65,188
Vessel management revenues	7,974		7,320		15,733		14,773
Shore-based facility revenues	976		767		1,670		1,544
	$	58,431	$	37,426	$	100,018	$	81,505

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Loss Per Share

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Earnings (Loss) Per Share

Loss Per Share

Basic loss per common share was calculated by dividing net loss by the weighted average number of common shares outstanding during the period. Diluted loss per common share was calculated by dividing net loss by the weighted average number of common shares outstanding during the year plus the effect of dilutive stock options and restricted stock unit awards. When reporting a net loss, the Company uses weighted average basic shares outstanding to calculate diluted earnings per share. Weighted average number of common shares outstanding was calculated by using the sum of the shares determined on a daily basis divided by the number of days in the period. The table below reconciles the Company’s loss per share (in thousands, except for per share data): 

	Three Months Ended    June 30,						Six Months Ended   June 30,
	2018			2017			2018			2017
Net loss	$	(25,088	)	$	(19,489	)	$	(63,743	)	$	(47,387	)
Weighted average number of shares of common stock outstanding	37,496			36,769			37,419			36,683
Add: Net effect of dilutive stock options and unvested restricted stock (1)(2)(3)	—			—			—			—
Weighted average number of dilutive shares of common stock outstanding	37,496			36,769			37,419			36,683
Loss per common share:
Basic loss per common share	$	(0.67	)	$	(0.53	)	$	(1.70	)	$	(1.29	)
Diluted loss per common share	$	(0.67	)	$	(0.53	)	$	(1.70	)	$	(1.29	)

(1) Due to a net loss, the Company excluded from the calculation of loss per share the effect of equity awards representing the rights to acquire 529 and 639 shares of common stock for the three and six months ended June 30, 2018 and 992 and 988 shares of common stock for the three and six months ended June 30, 2017, respectively.

(2) For the six months ended June 30, 2018 and 2017, the 2019 convertible senior notes were not dilutive, as the average price of the Company’s stock was less than the effective conversion price of such notes. It is the Company's stated intention to redeem the principal amount of its 2019 convertible senior notes in cash and the Company has used the treasury method for determining potential dilution in the diluted earnings per share computation.

(3) Dilutive unvested restricted stock units are expected to fluctuate from quarter to quarter depending on the Company’s performance compared to a predetermined set of performance criteria. See Note 7 to these financial statements for further information regarding certain of the Company’s restricted stock grants.

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Property, Plant and Equipment (Notes)

6 Months Ended

Jun. 30, 2018

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

Asset Impairment Assessment

In accordance with ASC 360, the Company periodically reviews long-lived asset valuations when events or changes in circumstances indicate that an asset’s carrying value may not be recoverable. If indicators of impairment exist, the Company assesses the recoverability of its long-lived assets by comparing the projected future undiscounted cash flows associated with the related long-lived asset group over their remaining estimated useful lives. If the sum of the estimated undiscounted cash flows are less than the carrying amounts of the asset group, the assets are written down to their estimated fair values based on the expected discounted future cash flows or appraised values attributable to the assets. The future cash flows are subjective and are based on the Company’s current assumptions regarding future dayrates, utilization, operating expense, G&A expense and recertification costs that could differ from actual results.

During the second quarter of 2016, the Company determined that it observed indicators of impairment related to its vessels. This resulted from the rapid deterioration of its second quarter 2016 operating results, as well as the uncertainty regarding future market conditions and the related impact on the Company's projected operating results. For the purposes of calculating the undiscounted cash flows, the Company grouped its vessels into two groups, OSVs and MPSVs, and used a probability-weighted undiscounted cash flow projection to test for recoverability. After reviewing the results of this calculation, the Company determined that each of its asset groups had sufficient projected undiscounted cash flows to recover the remaining book value of the Company's long-lived assets within such groups. While the Company has not observed any new impairment indicators since the second quarter of 2016, the Company has reviewed and updated, as necessary, the assumptions used in determining its undiscounted cash flow projections for each asset group to reflect current market conditions. After reviewing the results of these updated projections, the Company determined that each of its asset groups continue to have sufficient projected undiscounted cash flows to recover the remaining book value of the Company's long-lived assets within such group.

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Long-Term Debt

6 Months Ended

Jun. 30, 2018

Debt Disclosure [Abstract]

Long-Term Debt

Long-Term Debt

As of the dates indicated, the Company had the following outstanding long-term debt (in thousands):

	June 30, 2018		December 31, 2017
5.875% senior notes due 2020, net of deferred financing costs of $1,611 and $2,061	$	365,331	$	364,881
5.000% senior notes due 2021, net of deferred financing costs of $2,657 and $3,142	447,343		446,858
1.500% convertible senior notes due 2019, net of original issue discount of $4,707 and $6,634 and deferred financing costs of $1,055 and $1,486	93,885		91,527
First-lien credit facility due 2023, including deferred gain of $17,457 and $18,911, and net of original issue discount of $1,115 and $1,228, and deferred financing costs of $3,129 and $3,445	176,535		177,560
	$	1,083,094	$	1,080,826

The table below summarizes the Company's cash interest payments (in thousands):

	Cash Interest Payments		Payment Dates
5.875% senior notes due 2020	$	10,779	April 1 and October 1
5.000% senior notes due 2021	11,250		March 1 and September 1
1.500% convertible senior notes due 2019	747		March 1 and September 1
First-lien credit facility due 2023 (1)	1,202		Variable

(1) The interest rate on the Credit Facility is variable based on the Company's election. The amount reflected in this table is the monthly amount payable based on the 30-day LIBOR interest rate that was elected and in effect on June 30, 2018. Please see further discussion of the variable interest rate below.

First-Lien Credit Facility

The Company's $300 million first-lien credit facility, or Credit Facility, matures in June 2023 and currently provides for $136.7 million of additional available liquidity, $68.0 million of which is required to be drawn by December 31, 2018 with the remaining balance required to be drawn by September 1, 2019. The Company can use draws under the facility for working capital and general corporate purposes, including the acquisition of distressed assets and/or the refinancing of existing debt, subject to, among other things, compliance with certain covenants requiring the Company to maintain access to liquidity (cash and credit availability) of $25.0 million at all times. The minimum liquidity level required for prepayment of the Company’s existing indebtedness and/or certain other restricted payments is $65.0 million. The Credit Facility is collateralized by 55 domestic high-spec OSVs and MPSVs, including a security interest in two pending MPSV newbuilds, and associated personalty, as well as by certain deposit and securities accounts. Borrowings accrue interest, at the Company’s option, at either an adjusted London Interbank Offered Rate (subject to a 1.00% floor) plus an applicable margin or the greatest of (a) the prime rate announced by The Wall Street Journal, (b) the Federal Funds Effective Rate in effect on such day plus 1/2 of 1%, and (c) the London Interbank Offered Rate plus, 1%, plus, an applicable a margin.

On March 27, 2018, the Company entered into an amendment with its first-lien lenders to clarify various provisions in and made certain technical revisions to the Credit Facility, primarily dealing with the administerial permissabilities regarding vessel reflagging transactions and permitted acquisition indebtedness, among other matters.

The agreement governing the Credit Facility and the indentures governing the Company's 2020 senior notes and 2021 senior notes impose certain restrictions on the Company. Such restrictions affect, and in many cases limit or prohibit, among other things, the Company's ability to incur additional indebtedness, make capital expenditures, redeem equity, create liens, sell assets and make dividend or other restricted payments.

The Company estimates the fair value of its 2020 senior notes, 2021 senior notes, 2019 convertible senior notes and Credit Facility by primarily using quoted market prices. Given the observability of the inputs to these estimates, the Company has assigned a Level 2 of the three-level valuation hierarchy for such outstanding notes.

As of the dates indicated below, the Company had the following face values, carrying values and fair values (in thousands):

	June 30, 2018						December 31, 2017
	Face Value		Carrying Value		Fair Value		Face Value		Carrying Value		Fair Value
5.875% senior notes due 2020	$	366,942	$	365,331	$	274,289	$	366,942	$	364,881	$	244,714
5.000% senior notes due 2021	450,000		447,343		295,313		450,000		446,858		236,250
1.500% convertible senior notes due 2019	99,647		93,885		77,167		99,647		91,527		74,486
First-lien credit facility due 2023 (1)	163,322		176,535		162,718		163,322		177,560		162,505
	$	1,079,911	$	1,083,094	$	809,487	$	1,079,911	$	1,080,826	$	717,955

(1) The carrying value of the Credit Facility due 2023 includes a deferred gain of $17,457 less original issue discount and deferred financing costs of $4,244.

Capitalized Interest

During the three months ended June 30, 2018, the Company did not capitalize any of its interest costs. During the six months ended June 30, 2018, the Company capitalized approximately $2.3 million of interest costs related to the construction of vessels. During the three and six months ended June 30, 2017, the Company capitalized approximately $2.5 million and $4.9 million, respectively, of interest costs related to the construction of vessels.

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Incentive Compensation

6 Months Ended

Jun. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Incentive Compensation

Incentive Compensation

Stock-Based Incentive Compensation Plan

The Company’s stock-based incentive compensation plan covers a maximum of 4.95 million shares of common stock that allows the Company to grant restricted stock awards, restricted stock unit awards, or collectively restricted stock, stock options, stock appreciation rights and fully-vested common stock to employees and directors. As of June 30, 2018, the Company has granted awards covering 4.68 million shares of common stock under such plan.

During the six months ended June 30, 2018, the Company granted 1,527,102 time-based and 939,391 performance-based phantom restricted stock units. The phantom shares to be received under the performance-based phantom restricted stock units are calculated based on the Company's performance compared to two pre-determined criteria, as defined by the phantom restricted stock unit agreements governing such awards. The actual number of shares that could be received by the award recipients can range from 0% to 150% of the awards granted depending on the Company's performance.

The fair value of the Company’s performance-based phantom restricted stock units, which is the stock price on the date of grant, is applied to the total shares that are expected to fully vest and is amortized over the vesting period, which is generally three years, based on the Company’s internal performance measured against the pre-determined criteria, as applicable. The compensation expense related to time-based phantom restricted stock units are amortized over a vesting period of up to three years, as applicable, and is determined based on the market price of the Company’s stock on the date of grant applied to the total shares that are expected to fully vest. All phantom restricted stock units are re-measured quarterly and classified as a liability, due to the settlement of these awards in cash. In addition to the phantom restricted stock units granted in 2018, the Company granted performance-based and time-based restricted stock units and phantom restricted stock units in prior years. During the six months ended June 30, 2018, the Company issued 426,896 shares of common stock due to vestings of restricted stock units and employee purchases under the Company's Employee Stock Purchase Plan.

The impact of stock-based compensation expense charges on the Company’s operating results are reflected in the table below (in thousands, except for per share data):

	Three Months Ended    June 30,				Six Months Ended   June 30,
	2018		2017		2018		2017
Loss before income taxes	$	1,885	$	972	$	4,753	$	3,014
Net loss	$	1,500	$	659	$	3,850	$	2,071
Earnings per common share:
Basic earnings per common share	$	0.04	$	0.02	$	0.10	$	0.06
Diluted earnings per common share	$	0.04	$	0.02	$	0.10	$	0.06

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Vessel Construction

During the first quarter of 2018, the Company notified the shipyard that it was terminating the construction contracts for the final two vessels in the Company's fifth OSV newbuild program due to performance issues at the shipyard. The Company is working with the issuer of the shipyard's performance bonds in order to complete the construction of the vessels at a completion yard. The cost of this nearly completed 24-vessel newbuild program, before construction period interest, is expected to be approximately $1,335.0 million, of which $17.0 million, and $44.8 million are currently expected to be incurred in the remainder of 2018 and fiscal 2019, respectively. However, the timing of these remaining construction draws remains subject to change commensurate with any potential further delays in the delivery dates of the final two newbuild vessels. From the inception of this program through June 30, 2018, the Company had incurred $1,273.2 million, or 95.4%, of total expected project costs.

Vessel Acquisitions

On May 18, 2018, the Company completed the acquisition of four high-spec Jones Act-qualified OSVs and related equipment from Aries Marine Corporation and certain of its affiliates for $40.9 million in cash, inclusive of $4.0 million related to a non-compete intangible asset that will be amortized over the life of such asset, or two years. Also included in this transaction was the cost of fuel and lube inventory and transactions fees. The acquired vessels are all U.S.-flagged and are comprised of two 300 class OSVs and two 280 class OSVs. The Company determined that substantially all of the fair value of the assets acquired are concentrated in a group of similar identifiable assets and, therefore, has accounted for such transaction as an asset acquisition under ASU 2017-01.

Contingencies

In the normal course of its business, the Company becomes involved in various claims and legal proceedings in which monetary damages are sought. It is management's opinion that the Company's liability, if any, under such claims or proceedings would not materially affect the Company's financial position or results of operations. The Company insures against losses relating to its vessels, pollution and third party liabilities, including claims by employees under Section 33 of the Merchant Marine Act of 1920, or the Jones Act. Third party liabilities and pollution claims that relate to vessel operations are covered by the Company’s entry in a mutual protection and indemnity association, or P&I Club, as well as by marine liability policies in excess of the P&I Club’s coverage. The Company provides reserves for any individual claim deductibles for which the Company remains responsible by using an estimation process that considers Company-specific and industry data, as well as management’s experience, assumptions and consultation with outside counsel. As additional information becomes available, the Company will assess the potential liability related to its pending claims and revise its estimates. Although historically revisions to such estimates have not been material, changes in estimates of the potential liability could materially impact the Company’s results of operations, financial position or cash flows.

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Other Accrued Liabilities (Notes)

6 Months Ended

Jun. 30, 2018

Accrued Liabilities, Current [Abstract]

Other Liabilities Disclosure

Other Accrued Liabilities

Other accrued liabilities include the following (in thousands):

	June 30, 2018		December 31, 2017
Accrued lease expense	$	5,278	$	5,142
Deferred revenues	2,122		460
Other	5,618		2,855
Total	$	13,018	$	8,457

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Income Taxes (Notes)

6 Months Ended

Jun. 30, 2018

Income Tax Disclosure [Abstract]

Income Tax Disclosure

Income Taxes

The Tax Cuts and Jobs Act, or the Act, was signed into law on December 22, 2017. The primary impact of this legislation was a reduction of the U.S. federal corporate tax rate from 35% to 21% generally effective January 1, 2018. As of December 31, 2017, the Company included in its income tax benefit rate a preliminary estimate related to executive compensation, alternative minimum tax refundable credits, taxation in its foreign jurisdictions, and re-measurement of its deferred taxes. As of June 30, 2018, the Company has not identified or recorded any revisions to its provisional amounts and has not completed its accounting for the tax effects of enactment of the Act; however, in certain cases, as described below, the Company made reasonable estimates of the effects and recorded provisional amounts. The Company's provisional estimates on Global Intangible Low Taxed Income, Foreign Derived Intangible Income, Base Erosion and Anti-Abuse, and the IRC Section 163(j) interest limitation did not materially impact its effective tax benefit rate for the three months ended June 30, 2018. The Company will continue to refine its calculations as additional tax guidance becomes available and its internal analysis is completed. The accounting for the tax effects of the Act will be completed in 2018 as allowed under Staff Accounting Bulletin 118, which was issued by the Securities and Exchange Commission on December 22, 2017.

The effective tax benefit rate for the six months ended June 30, 2018 and 2017 was 19.0% and 31.3%, respectively. The lower benefit rate for the quarter ended June 30, 2018 was primarily due to the reduction of the statutory corporate income tax rate from 35% to 21% resulting from the Act. In addition, the Company established valuation allowances in 2017 for foreign tax credit carryforwards based upon management's conclusion that it is more likely than not such losses and credits will not be realized by their expiration dates.

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Condensed Consolidating Financial Statements of Guarantors (Notes)

6 Months Ended

Jun. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Condensed Consolidating Financial Statements of Guarantors

Condensed Consolidating Financial Statements of Guarantors

The following tables present the condensed consolidating balance sheets as of June 30, 2018 and December 31, 2017, the condensed consolidating statements of operations, the condensed consolidating statements of comprehensive income (loss) and condensed consolidating statements of cash flows for the six months endedJune 30, 2018 and 2017, respectively, for the domestic subsidiaries of the Company that serve as co-borrower and/or guarantors of the Company's 2019 convertible senior notes, 2020 senior notes, 2021 senior notes and the Credit Facility, as well as the financial results for the Company's subsidiaries that do not serve as guarantors. The co-borrower and/or guarantor subsidiaries of the 2019 convertible senior notes, 2020 senior notes, 2021 senior notes and the Credit Facility are 100% owned, directly or indirectly, by Hornbeck Offshore Services, Inc. The guarantees are full and unconditional and joint and several. The non-guarantor subsidiaries of such notes include all of the Company's foreign subsidiaries.

Condensed Consolidating Balance Sheet

(In thousands, except per share data)

	As of June 30, 2018
	Parent		Guarantor Subsidiaries		Non-Guarantor Subsidiaries			Consolidating			Consolidated
ASSETS
Current assets:
Cash and cash equivalents	$	7	$	103,862	$	5,196		$	—		$	109,065
Accounts receivable, net of allowance for doubtful accounts of $6,103	—		51,970		5,188			(85		)	57,073
Other current assets	53		14,866		1,087			—			16,006
Total current assets	60		170,698		11,471			(85		)	182,144
Property, plant and equipment, net	—		2,285,189		197,544			—			2,482,733
Deferred charges, net	—		15,967		1,879			—			17,846
Intercompany receivable	1,782,674		758,505		220,164			(2,761,343		)	—
Investment in subsidiaries	721,406		8,602		—			(730,008		)	—
Other assets	—		5,890		546			—			6,436
Total assets	$	2,504,140	$	3,244,851	$	431,604		$	(3,491,436	)	$	2,689,159
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	—	$	18,657	$	958		$	—		$	19,615
Accrued interest	15,790		—		—			—			15,790
Accrued payroll and benefits	—		11,712		652			—			12,364
Other accrued liabilities	—		12,555		548			(85		)	13,018
Total current liabilities	15,790		42,924		2,158			(85		)	60,787
Long-term debt, including deferred gain of $17,457, and net of original issue discount of $5,822 and deferred financing costs of $8,452	1,083,094		—		—			—			1,083,094
Deferred tax liabilities, net	—		177,433		1,691			—			179,124
Intercompany payables	39,509		2,264,292		466,567			(2,770,368		)	—
Other liabilities	—		2,479		43			—			2,522
Total liabilities	1,138,393		2,487,128		470,459			(2,770,453		)	1,325,527
Stockholders’ equity:
Preferred stock: $0.01 par value; 5,000 shares authorized; no shares issued and outstanding	—		—		—			—			—
Common stock: $0.01 par value; 100,000 shares authorized; 37,595 shares issued and outstanding	376		—		—			—			376
Additional paid-in capital	760,939		37,978		8,602			(46,580		)	760,939
Retained earnings	604,432		719,745		(44,919		)	(674,403		)	604,855
Accumulated other comprehensive loss	—		—		(2,538		)	—			(2,538		)
Total stockholders’ equity	1,365,747		757,723		(38,855		)	(720,983		)	1,363,632
Total liabilities and stockholders’ equity	$	2,504,140	$	3,244,851	$	431,604		$	(3,491,436	)	$	2,689,159

Condensed Consolidating Balance Sheet

(In thousands, except per share data)

	As of December 31, 2017
	Parent		Guarantor Subsidiaries		Non-Guarantor Subsidiaries			Consolidating			Consolidated
ASSETS
Current assets:
Cash and cash equivalents	$	4	$	178,746	$	8,099		$	—		$	186,849
Accounts receivable, net of allowance for doubtful accounts of $6,054	—		40,407		4,295			—			44,702
Other current assets	29		16,051		810			—			16,890
Total current assets	33		235,204		13,204			—			248,441
Property, plant and equipment, net	—		2,379,097		121,916			—			2,501,013
Deferred charges, net	—		11,408		1,404			—			12,812
Intercompany receivable	1,778,711		648,920		39,445			(2,467,076		)	—
Investment in subsidiaries	790,734		8,602		—			(799,336		)	—
Other assets	—		5,984		628			—			6,612
Total assets	$	2,569,478	$	3,289,215	$	176,597		$	(3,266,412	)	$	2,768,878
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	—	$	15,643	$	553		$	—		$	16,196
Accrued interest	14,734		—		—			—			14,734
Accrued payroll and benefits	—		8,458		1,017			—			9,475
Other accrued liabilities	—		8,129		328			—			8,457
Total current liabilities	14,734		32,230		1,898			—			48,862
Long-term debt, including deferred gain of $18,911, and net of original issue discount of $7,862 and deferred financing costs of $10,134	1,080,826		—		—			—			1,080,826
Deferred tax liabilities, net	—		192,793		4,672			—			197,465
Intercompany payables	140,019		2,240,832		190,177			(2,571,028		)	—
Other liabilities	—		3,802		(1		)	—			3,801
Total liabilities	1,235,579		2,469,657		196,746			(2,571,028		)	1,330,954
Stockholders’ equity:
Preferred stock: $0.01 par value; 5,000 shares authorized; no shares issued and outstanding	—		—		—			—			—
Common stock: $0.01 par value; 100,000 shares authorized; 37,144 shares issued and outstanding	371		—		—			—			371
Additional paid-in capital	758,690		37,975		8,602			(44,989		)	760,278
Retained earnings	574,838		781,583		(37,428		)	(650,395		)	668,598
Accumulated other comprehensive income	—		—		8,677			—			8,677
Total stockholders’ equity	1,333,899		819,558		(20,149		)	(695,384		)	1,437,924
Total liabilities and stockholders’ equity	$	2,569,478	$	3,289,215	$	176,597		$	(3,266,412	)	$	2,768,878

Condensed Consolidating Statement of Operations

(In thousands)

	Three Months Ended June 30, 2018
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating		Consolidated
Revenues	$	—		$	57,963		$	468		$	—	$	58,431
Costs and expenses:
Operating expenses	—			32,209			2,649			—		34,858
Depreciation	—			22,874			1,756			—		24,630
Amortization	—			1,939			317			—		2,256
General and administrative expenses	82			11,456			708			—		12,246
	82			68,478			5,430			—		73,990
Loss on sale of assets	—			(13		)	—			—		(13		)
Operating loss	(82		)	(10,528		)	(4,962		)	—		(15,572		)
Other income (expense):
Interest income	—			457			62			—		519
Interest expense	(16,401		)	—			—			—		(16,401		)
Equity in earnings (losses) of consolidated subsidiaries	(8,605		)	—			—			8,605		—
Other income (expense), net	—			(2,036		)	1,964			—		(72		)
	(25,006		)	(1,579		)	2,026			8,605		(15,954		)
Income (loss) before income taxes	(25,088		)	(12,107		)	(2,936		)	8,605		(31,526		)
Income tax expense (benefit)	—			(6,555		)	117			—		(6,438		)
Net income (loss)	$	(25,088	)	$	(5,552	)	$	(3,053	)	$	8,605	$	(25,088	)

Condensed Consolidating Statement of Comprehensive Income (Loss)

(In thousands)

	Three Months Ended June 30, 2018
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating		Consolidated
Net income (loss)	$	(25,088	)	$	(5,552	)	$	(3,053	)	$	8,605	$	(25,088	)
Other comprehensive income:
Foreign currency translation loss	—			—			(10,916		)	—		(10,916		)
Total comprehensive income (loss)	$	(25,088	)	$	(5,552	)	$	(13,969	)	$	8,605	$	(36,004	)

Condensed Consolidating Statement of Operations

(In thousands)

	Six Months Ended June 30, 2018
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating			Consolidated
Revenues	$	—		$	98,278		$	1,797		$	(57	)	$	100,018
Costs and expenses:
Operating expenses	—			66,194			4,687			(54		)	70,827
Depreciation	—			46,180			3,098			—			49,278
Amortization	—			3,738			510			—			4,248
General and administrative expenses	138			23,825			1,161			(3		)	25,121
	138			139,937			9,456			(57		)	149,474
Gain on sale of assets	—			30			—			—			30
Operating loss	(138		)	(41,629		)	(7,659		)	—			(49,426		)
Other income (expense):
Interest income	—			1,026			137			—			1,163
Interest expense	(30,346		)	—			—			—			(30,346		)
Equity in earnings (losses) of consolidated subsidiaries	(33,259		)	—			—			33,259			—
Other income (expense), net	—			(20		)	(43		)	—			(63		)
	(63,605		)	1,006			94			33,259			(29,246		)
Income (loss) before income taxes	(63,743		)	(40,623		)	(7,565		)	33,259			(78,672		)
Income tax expense (benefit)	—			(14,854		)	(75		)	—			(14,929		)
Net income (loss)	$	(63,743	)	$	(25,769	)	$	(7,490	)	$	33,259		$	(63,743	)

Condensed Consolidating Statement of Comprehensive Income (Loss)

(In thousands)

	Six Months Ended June 30, 2018
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating		Consolidated
Net income (loss)	$	(63,743	)	$	(25,769	)	$	(7,490	)	$	33,259	$	(63,743	)
Other comprehensive income:
Foreign currency translation gain (loss)	—			—			(11,215		)	—		(11,215		)
Total comprehensive income (loss)	$	(63,743	)	$	(25,769	)	$	(18,705	)	$	33,259	$	(74,958	)

Condensed Consolidating Statement of Operations

(In thousands)

	Three Months Ended June 30, 2017
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating			Consolidated
Revenues	$	—		$	36,325		$	1,406		$	(305	)	$	37,426
Costs and expenses:
Operating expenses	—			28,337			3,338			(307		)	31,368
Depreciation	—			23,368			1,311			—			24,679
Amortization	—			2,903			363			—			3,266
General and administrative expenses	74			8,734			633			(9		)	9,432
	74			63,342			5,645			(316		)	68,745
Gain on sale of assets	—			1			—			—			1
Operating income (loss)	(74		)	(27,016		)	(4,239		)	11			(31,318		)
Other income (expense):
Gain on early extinguishment of debt	15,478			—			—			—			15,478
Interest income	—			363			101			—			464
Interest expense	(13,429		)	—			—			—			(13,429		)
Equity in earnings (losses) of consolidated subsidiaries	(21,464		)	—			—			21,464			—
Other income (expense), net	—			1,023			(958		)	(11		)	54
	(19,415		)	1,386			(857		)	21,453			2,567
Income (loss) before income taxes	(19,489		)	(25,630		)	(5,096		)	21,464			(28,751		)
Income tax expense (benefit)	—			(9,611		)	349			—			(9,262		)
Net income (loss)	$	(19,489	)	$	(16,019	)	$	(5,445	)	$	21,464		$	(19,489	)

Condensed Consolidating Statement of Comprehensive Income (Loss)

(In thousands)

	Three Months Ended June 30, 2017
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating		Consolidated
Net income (loss)	$	(19,489	)	$	(16,019	)	$	(5,445	)	$	21,464	$	(19,489	)
Other comprehensive income:
Foreign currency translation gain (loss)	—			—			(2,976		)	—		(2,976		)
Total comprehensive income (loss)	$	(19,489	)	$	(16,019	)	$	(8,421	)	$	21,464	$	(22,465	)

Condensed Consolidating Statement of Operations

(In thousands)

	Six Months Ended June 30, 2017
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating			Consolidated
Revenues	$	—		$	70,047		$	11,721		$	(263	)	$	81,505
Costs and expenses:
Operating expenses	—			52,866			6,704			(267		)	59,303
Depreciation	—			46,722			2,634			—			49,356
Amortization	—			6,215			775			—			6,990
General and administrative expenses	110			22,320			1,251			(7		)	23,674
	110			128,123			11,364			(274		)	139,323
Gain on sale of assets	—			18			1			—			19
Operating income (loss)	(110		)	(58,058		)	358			11			(57,799		)
Other income (expense):
Gain on early extinguishment of debt	15,478			—			—			—			15,478
Interest income	—			688			177			—			865
Interest expense	(27,238		)	—			—			—			(27,238		)
Equity in earnings (losses) of consolidated subsidiaries	(35,517		)	—			—			35,517			—
Other income(expense), net	—			3,646			(3,904		)	(11		)	(269		)
	(47,277		)	4,334			(3,727		)	35,506			(11,164		)
Income (loss) before income taxes	(47,387		)	(53,724		)	(3,369		)	35,517			(68,963		)
Income tax expense (benefit)	—			(22,095		)	519			—			(21,576		)
Net income (loss)	$	(47,387	)	$	(31,629	)	$	(3,888	)	$	35,517		$	(47,387	)

Condensed Consolidating Statement of Comprehensive Income (Loss)

(In thousands)

	Six Months Ended June 30, 2017
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating		Consolidated
Net income (loss)	$	(47,387	)	$	(31,629	)	$	(3,888	)	$	35,517	$	(47,387	)
Other comprehensive income:
Foreign currency translation gain (loss)	—			(149		)	(1,058		)	—		(1,207		)
Total comprehensive income (loss)	$	(47,387	)	$	(31,778	)	$	(4,946	)	$	35,517	$	(48,594	)

Condensed Consolidating Statement of Cash Flows

(In thousands)

	Six Months Ended June 30, 2018
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating		Consolidated
CASH FLOWS FROM OPERATING ACTIVITIES:
Net cash provided by (used in) operating activities	$	279		$	(26,825	)	$	(1,107	)	$	—	$	(27,653	)
CASH FLOWS FROM INVESTING ACTIVITIES:
Costs incurred for acquisition of offshore supply vessels	—			(40,868		)	—			—		(40,868		)
Costs incurred for OSV newbuild program #5	—			(2,757		)	—			—		(2,757		)
Net proceeds from sale of assets	—			57			—			—		57
Vessel capital expenditures	—			(4,394		)	(1,088		)	—		(5,482		)
Non-vessel capital expenditures	—			(97		)	16			—		(81		)
Net cash used in investing activities	—			(48,059		)	(1,072		)	—		(49,131		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Shares withheld for employee withholding taxes	(536		)	—			—			—		(536		)
Net cash proceeds from other shares issued	260			—			—			—		260
Net cash used in financing activities	(276		)	—			—			—		(276		)
Effects of exchange rate changes on cash	—			—			(724		)	—		(724		)
Net increase (decrease) in cash and cash equivalents	3			(74,884		)	(2,903		)	—		(77,784		)
Cash and cash equivalents at beginning of period	4			178,746			8,099			—		186,849
Cash and cash equivalents at end of period	$	7		$	103,862		$	5,196		$	—	$	109,065
SUPPLEMENTAL DISCLOSURES OF CASH FLOW ACTIVITIES:
Cash paid for interest	$	29,304		$	—		$	—		$	—	$	29,304
Cash paid for income taxes	$	—		$	426		$	224		$	—	$	650

Condensed Consolidating Statement of Cash Flows

(In thousands)

	Six Months Ended June 30, 2017
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating		Consolidated
CASH FLOWS FROM OPERATING ACTIVITIES:
Net cash provided by (used in) operating activities	$	59,666		$	(91,432	)	$	7,640		$	—	$	(24,126	)
CASH FLOWS FROM INVESTING ACTIVITIES:
Costs incurred for OSV newbuild program #5	—			(7,455		)	392			—		(7,063		)
Net proceeds from sale of assets	—			33			—			—		33
Vessel capital expenditures	—			(243		)	(242		)	—		(485		)
Non-vessel capital expenditures	—			(531		)	(17		)	—		(548		)
Net cash provided by (used in) investing activities	—			(8,196		)	133			—		(8,063		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from Credit Facility	980			—			—			—		980
Repurchase of senior notes due 2020	(5,057		)	—			—			—		(5,057		)
Repurchase of convertible notes	(49,631		)	—			—			—		(49,631		)
Deferred financing costs	(5,636		)	—			—			—		(5,636		)
Shares withheld for employee withholding taxes	(573		)	—			—			—		(573		)
Net cash proceeds from other shares issued	258			—			—			—		258
Net cash used in financing activities	(59,659		)	—			—			—		(59,659		)
Effects of exchange rate changes on cash	—			(150		)	(246		)	—		(396		)
Net increase (decrease) in cash and cash equivalents	7			(99,778		)	7,527			—		(92,244		)
Cash and cash equivalents at beginning of period	9			212,196			4,822			—		217,027
Cash and cash equivalents at end of period	$	16		$	112,418		$	12,349		$	—	$	124,783
SUPPLEMENTAL DISCLOSURES OF CASH FLOW ACTIVITIES:
Cash paid for interest	$	26,199		$	—		$	—		$	—	$	26,199
Cash paid for income taxes	$	—		$	331		$	379		$	—	$	710
SUPPLEMENTAL DISCLOSURES OF NON-CASH FINANCING ACTIVITIES:
Exchange of convertible notes for first-lien term loan	$	127,096		$	—		$	—		$	—	$	127,096

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Revenues From Contracts With Customers (Tables)

6 Months Ended

Jun. 30, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

For the three and six months ended June 30, 2018 and 2017, the Company recognized revenues as follows (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Vessel revenues	$	49,481	$	29,339	$	82,615	$	65,188
Vessel management revenues	7,974		7,320		15,733		14,773
Shore-based facility revenues	976		767		1,670		1,544
	$	58,431	$	37,426	$	100,018	$	81,505

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Loss Per Share (Tables)

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Reconciliation of Earnings Per Share

The table below reconciles the Company’s loss per share (in thousands, except for per share data): 

	Three Months Ended    June 30,						Six Months Ended   June 30,
	2018			2017			2018			2017
Net loss	$	(25,088	)	$	(19,489	)	$	(63,743	)	$	(47,387	)
Weighted average number of shares of common stock outstanding	37,496			36,769			37,419			36,683
Add: Net effect of dilutive stock options and unvested restricted stock (1)(2)(3)	—			—			—			—
Weighted average number of dilutive shares of common stock outstanding	37,496			36,769			37,419			36,683
Loss per common share:
Basic loss per common share	$	(0.67	)	$	(0.53	)	$	(1.70	)	$	(1.29	)
Diluted loss per common share	$	(0.67	)	$	(0.53	)	$	(1.70	)	$	(1.29	)

(1) Due to a net loss, the Company excluded from the calculation of loss per share the effect of equity awards representing the rights to acquire 529 and 639 shares of common stock for the three and six months ended June 30, 2018 and 992 and 988 shares of common stock for the three and six months ended June 30, 2017, respectively.

(2) For the six months ended June 30, 2018 and 2017, the 2019 convertible senior notes were not dilutive, as the average price of the Company’s stock was less than the effective conversion price of such notes. It is the Company's stated intention to redeem the principal amount of its 2019 convertible senior notes in cash and the Company has used the treasury method for determining potential dilution in the diluted earnings per share computation.

(3) Dilutive unvested restricted stock units are expected to fluctuate from quarter to quarter depending on the Company’s performance compared to a predetermined set of performance criteria. See Note 7 to these financial statements for further information regarding certain of the Company’s restricted stock grants.

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Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2018

Debt Instrument [Line Items]

Outstanding Long-Term Debt

As of the dates indicated, the Company had the following outstanding long-term debt (in thousands):

	June 30, 2018		December 31, 2017
5.875% senior notes due 2020, net of deferred financing costs of $1,611 and $2,061	$	365,331	$	364,881
5.000% senior notes due 2021, net of deferred financing costs of $2,657 and $3,142	447,343		446,858
1.500% convertible senior notes due 2019, net of original issue discount of $4,707 and $6,634 and deferred financing costs of $1,055 and $1,486	93,885		91,527
First-lien credit facility due 2023, including deferred gain of $17,457 and $18,911, and net of original issue discount of $1,115 and $1,228, and deferred financing costs of $3,129 and $3,445	176,535		177,560
	$	1,083,094	$	1,080,826

The table below summarizes the Company's cash interest payments (in thousands):

	Cash Interest Payments		Payment Dates
5.875% senior notes due 2020	$	10,779	April 1 and October 1
5.000% senior notes due 2021	11,250		March 1 and September 1
1.500% convertible senior notes due 2019	747		March 1 and September 1
First-lien credit facility due 2023 (1)	1,202		Variable

(1) The interest rate on the Credit Facility is variable based on the Company's election. The amount reflected in this table is the monthly amount payable based on the 30-day LIBOR interest rate that was elected and in effect on June 30, 2018. Please see further discussion of the variable interest rate below.

Schedule of Carrying Values and Estimated Fair Values of Debt Instruments

As of the dates indicated below, the Company had the following face values, carrying values and fair values (in thousands):

	June 30, 2018						December 31, 2017
	Face Value		Carrying Value		Fair Value		Face Value		Carrying Value		Fair Value
5.875% senior notes due 2020	$	366,942	$	365,331	$	274,289	$	366,942	$	364,881	$	244,714
5.000% senior notes due 2021	450,000		447,343		295,313		450,000		446,858		236,250
1.500% convertible senior notes due 2019	99,647		93,885		77,167		99,647		91,527		74,486
First-lien credit facility due 2023 (1)	163,322		176,535		162,718		163,322		177,560		162,505
	$	1,079,911	$	1,083,094	$	809,487	$	1,079,911	$	1,080,826	$	717,955

(1) The carrying value of the Credit Facility due 2023 includes a deferred gain of $17,457 less original issue discount and deferred financing costs of $4,244.

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Incentive Compensation (Tables)

6 Months Ended

Jun. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Financial Impact of Stock-Based Compensation Expense Charges

The impact of stock-based compensation expense charges on the Company’s operating results are reflected in the table below (in thousands, except for per share data):

	Three Months Ended    June 30,				Six Months Ended   June 30,
	2018		2017		2018		2017
Loss before income taxes	$	1,885	$	972	$	4,753	$	3,014
Net loss	$	1,500	$	659	$	3,850	$	2,071
Earnings per common share:
Basic earnings per common share	$	0.04	$	0.02	$	0.10	$	0.06
Diluted earnings per common share	$	0.04	$	0.02	$	0.10	$	0.06

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Other Accrued Liabilities (Tables)

6 Months Ended

Jun. 30, 2018

Accrued Liabilities, Current [Abstract]

Schedule of Accrued Liabilities

Other accrued liabilities include the following (in thousands):

	June 30, 2018		December 31, 2017
Accrued lease expense	$	5,278	$	5,142
Deferred revenues	2,122		460
Other	5,618		2,855
Total	$	13,018	$	8,457

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Condensed Consolidating Financial Statements of Guarantors (Tables)

6 Months Ended

Jun. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Condensed Balance Sheet

Condensed Consolidating Balance Sheet

(In thousands, except per share data)

	As of June 30, 2018
	Parent		Guarantor Subsidiaries		Non-Guarantor Subsidiaries			Consolidating			Consolidated
ASSETS
Current assets:
Cash and cash equivalents	$	7	$	103,862	$	5,196		$	—		$	109,065
Accounts receivable, net of allowance for doubtful accounts of $6,103	—		51,970		5,188			(85		)	57,073
Other current assets	53		14,866		1,087			—			16,006
Total current assets	60		170,698		11,471			(85		)	182,144
Property, plant and equipment, net	—		2,285,189		197,544			—			2,482,733
Deferred charges, net	—		15,967		1,879			—			17,846
Intercompany receivable	1,782,674		758,505		220,164			(2,761,343		)	—
Investment in subsidiaries	721,406		8,602		—			(730,008		)	—
Other assets	—		5,890		546			—			6,436
Total assets	$	2,504,140	$	3,244,851	$	431,604		$	(3,491,436	)	$	2,689,159
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	—	$	18,657	$	958		$	—		$	19,615
Accrued interest	15,790		—		—			—			15,790
Accrued payroll and benefits	—		11,712		652			—			12,364
Other accrued liabilities	—		12,555		548			(85		)	13,018
Total current liabilities	15,790		42,924		2,158			(85		)	60,787
Long-term debt, including deferred gain of $17,457, and net of original issue discount of $5,822 and deferred financing costs of $8,452	1,083,094		—		—			—			1,083,094
Deferred tax liabilities, net	—		177,433		1,691			—			179,124
Intercompany payables	39,509		2,264,292		466,567			(2,770,368		)	—
Other liabilities	—		2,479		43			—			2,522
Total liabilities	1,138,393		2,487,128		470,459			(2,770,453		)	1,325,527
Stockholders’ equity:
Preferred stock: $0.01 par value; 5,000 shares authorized; no shares issued and outstanding	—		—		—			—			—
Common stock: $0.01 par value; 100,000 shares authorized; 37,595 shares issued and outstanding	376		—		—			—			376
Additional paid-in capital	760,939		37,978		8,602			(46,580		)	760,939
Retained earnings	604,432		719,745		(44,919		)	(674,403		)	604,855
Accumulated other comprehensive loss	—		—		(2,538		)	—			(2,538		)
Total stockholders’ equity	1,365,747		757,723		(38,855		)	(720,983		)	1,363,632
Total liabilities and stockholders’ equity	$	2,504,140	$	3,244,851	$	431,604		$	(3,491,436	)	$	2,689,159

Condensed Consolidating Balance Sheet

(In thousands, except per share data)

	As of December 31, 2017
	Parent		Guarantor Subsidiaries		Non-Guarantor Subsidiaries			Consolidating			Consolidated
ASSETS
Current assets:
Cash and cash equivalents	$	4	$	178,746	$	8,099		$	—		$	186,849
Accounts receivable, net of allowance for doubtful accounts of $6,054	—		40,407		4,295			—			44,702
Other current assets	29		16,051		810			—			16,890
Total current assets	33		235,204		13,204			—			248,441
Property, plant and equipment, net	—		2,379,097		121,916			—			2,501,013
Deferred charges, net	—		11,408		1,404			—			12,812
Intercompany receivable	1,778,711		648,920		39,445			(2,467,076		)	—
Investment in subsidiaries	790,734		8,602		—			(799,336		)	—
Other assets	—		5,984		628			—			6,612
Total assets	$	2,569,478	$	3,289,215	$	176,597		$	(3,266,412	)	$	2,768,878
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	—	$	15,643	$	553		$	—		$	16,196
Accrued interest	14,734		—		—			—			14,734
Accrued payroll and benefits	—		8,458		1,017			—			9,475
Other accrued liabilities	—		8,129		328			—			8,457
Total current liabilities	14,734		32,230		1,898			—			48,862
Long-term debt, including deferred gain of $18,911, and net of original issue discount of $7,862 and deferred financing costs of $10,134	1,080,826		—		—			—			1,080,826
Deferred tax liabilities, net	—		192,793		4,672			—			197,465
Intercompany payables	140,019		2,240,832		190,177			(2,571,028		)	—
Other liabilities	—		3,802		(1		)	—			3,801
Total liabilities	1,235,579		2,469,657		196,746			(2,571,028		)	1,330,954
Stockholders’ equity:
Preferred stock: $0.01 par value; 5,000 shares authorized; no shares issued and outstanding	—		—		—			—			—
Common stock: $0.01 par value; 100,000 shares authorized; 37,144 shares issued and outstanding	371		—		—			—			371
Additional paid-in capital	758,690		37,975		8,602			(44,989		)	760,278
Retained earnings	574,838		781,583		(37,428		)	(650,395		)	668,598
Accumulated other comprehensive income	—		—		8,677			—			8,677
Total stockholders’ equity	1,333,899		819,558		(20,149		)	(695,384		)	1,437,924
Total liabilities and stockholders’ equity	$	2,569,478	$	3,289,215	$	176,597		$	(3,266,412	)	$	2,768,878

Condensed Income Statement

Condensed Consolidating Statement of Operations

(In thousands)

	Three Months Ended June 30, 2017
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating			Consolidated
Revenues	$	—		$	36,325		$	1,406		$	(305	)	$	37,426
Costs and expenses:
Operating expenses	—			28,337			3,338			(307		)	31,368
Depreciation	—			23,368			1,311			—			24,679
Amortization	—			2,903			363			—			3,266
General and administrative expenses	74			8,734			633			(9		)	9,432
	74			63,342			5,645			(316		)	68,745
Gain on sale of assets	—			1			—			—			1
Operating income (loss)	(74		)	(27,016		)	(4,239		)	11			(31,318		)
Other income (expense):
Gain on early extinguishment of debt	15,478			—			—			—			15,478
Interest income	—			363			101			—			464
Interest expense	(13,429		)	—			—			—			(13,429		)
Equity in earnings (losses) of consolidated subsidiaries	(21,464		)	—			—			21,464			—
Other income (expense), net	—			1,023			(958		)	(11		)	54
	(19,415		)	1,386			(857		)	21,453			2,567
Income (loss) before income taxes	(19,489		)	(25,630		)	(5,096		)	21,464			(28,751		)
Income tax expense (benefit)	—			(9,611		)	349			—			(9,262		)
Net income (loss)	$	(19,489	)	$	(16,019	)	$	(5,445	)	$	21,464		$	(19,489	)

Condensed Consolidating Statement of Operations

(In thousands)

	Three Months Ended June 30, 2018
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating		Consolidated
Revenues	$	—		$	57,963		$	468		$	—	$	58,431
Costs and expenses:
Operating expenses	—			32,209			2,649			—		34,858
Depreciation	—			22,874			1,756			—		24,630
Amortization	—			1,939			317			—		2,256
General and administrative expenses	82			11,456			708			—		12,246
	82			68,478			5,430			—		73,990
Loss on sale of assets	—			(13		)	—			—		(13		)
Operating loss	(82		)	(10,528		)	(4,962		)	—		(15,572		)
Other income (expense):
Interest income	—			457			62			—		519
Interest expense	(16,401		)	—			—			—		(16,401		)
Equity in earnings (losses) of consolidated subsidiaries	(8,605		)	—			—			8,605		—
Other income (expense), net	—			(2,036		)	1,964			—		(72		)
	(25,006		)	(1,579		)	2,026			8,605		(15,954		)
Income (loss) before income taxes	(25,088		)	(12,107		)	(2,936		)	8,605		(31,526		)
Income tax expense (benefit)	—			(6,555		)	117			—		(6,438		)
Net income (loss)	$	(25,088	)	$	(5,552	)	$	(3,053	)	$	8,605	$	(25,088	)

Condensed Statement of Comprehensive Income

Condensed Consolidating Statement of Comprehensive Income (Loss)

(In thousands)

	Three Months Ended June 30, 2018
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating		Consolidated
Net income (loss)	$	(25,088	)	$	(5,552	)	$	(3,053	)	$	8,605	$	(25,088	)
Other comprehensive income:
Foreign currency translation loss	—			—			(10,916		)	—		(10,916		)
Total comprehensive income (loss)	$	(25,088	)	$	(5,552	)	$	(13,969	)	$	8,605	$	(36,004	)

Condensed Consolidating Statement of Comprehensive Income (Loss)

(In thousands)

	Three Months Ended June 30, 2017
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating		Consolidated
Net income (loss)	$	(19,489	)	$	(16,019	)	$	(5,445	)	$	21,464	$	(19,489	)
Other comprehensive income:
Foreign currency translation gain (loss)	—			—			(2,976		)	—		(2,976		)
Total comprehensive income (loss)	$	(19,489	)	$	(16,019	)	$	(8,421	)	$	21,464	$	(22,465	)

Condensed Cash Flow Statement

Condensed Consolidating Statement of Cash Flows

(In thousands)

	Six Months Ended June 30, 2017
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating		Consolidated
CASH FLOWS FROM OPERATING ACTIVITIES:
Net cash provided by (used in) operating activities	$	59,666		$	(91,432	)	$	7,640		$	—	$	(24,126	)
CASH FLOWS FROM INVESTING ACTIVITIES:
Costs incurred for OSV newbuild program #5	—			(7,455		)	392			—		(7,063		)
Net proceeds from sale of assets	—			33			—			—		33
Vessel capital expenditures	—			(243		)	(242		)	—		(485		)
Non-vessel capital expenditures	—			(531		)	(17		)	—		(548		)
Net cash provided by (used in) investing activities	—			(8,196		)	133			—		(8,063		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from Credit Facility	980			—			—			—		980
Repurchase of senior notes due 2020	(5,057		)	—			—			—		(5,057		)
Repurchase of convertible notes	(49,631		)	—			—			—		(49,631		)
Deferred financing costs	(5,636		)	—			—			—		(5,636		)
Shares withheld for employee withholding taxes	(573		)	—			—			—		(573		)
Net cash proceeds from other shares issued	258			—			—			—		258
Net cash used in financing activities	(59,659		)	—			—			—		(59,659		)
Effects of exchange rate changes on cash	—			(150		)	(246		)	—		(396		)
Net increase (decrease) in cash and cash equivalents	7			(99,778		)	7,527			—		(92,244		)
Cash and cash equivalents at beginning of period	9			212,196			4,822			—		217,027
Cash and cash equivalents at end of period	$	16		$	112,418		$	12,349		$	—	$	124,783
SUPPLEMENTAL DISCLOSURES OF CASH FLOW ACTIVITIES:
Cash paid for interest	$	26,199		$	—		$	—		$	—	$	26,199
Cash paid for income taxes	$	—		$	331		$	379		$	—	$	710
SUPPLEMENTAL DISCLOSURES OF NON-CASH FINANCING ACTIVITIES:
Exchange of convertible notes for first-lien term loan	$	127,096		$	—		$	—		$	—	$	127,096

Condensed Consolidating Statement of Cash Flows

(In thousands)

	Six Months Ended June 30, 2018
	Parent			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating		Consolidated
CASH FLOWS FROM OPERATING ACTIVITIES:
Net cash provided by (used in) operating activities	$	279		$	(26,825	)	$	(1,107	)	$	—	$	(27,653	)
CASH FLOWS FROM INVESTING ACTIVITIES:
Costs incurred for acquisition of offshore supply vessels	—			(40,868		)	—			—		(40,868		)
Costs incurred for OSV newbuild program #5	—			(2,757		)	—			—		(2,757		)
Net proceeds from sale of assets	—			57			—			—		57
Vessel capital expenditures	—			(4,394		)	(1,088		)	—		(5,482		)
Non-vessel capital expenditures	—			(97		)	16			—		(81		)
Net cash used in investing activities	—			(48,059		)	(1,072		)	—		(49,131		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Shares withheld for employee withholding taxes	(536		)	—			—			—		(536		)
Net cash proceeds from other shares issued	260			—			—			—		260
Net cash used in financing activities	(276		)	—			—			—		(276		)
Effects of exchange rate changes on cash	—			—			(724		)	—		(724		)
Net increase (decrease) in cash and cash equivalents	3			(74,884		)	(2,903		)	—		(77,784		)
Cash and cash equivalents at beginning of period	4			178,746			8,099			—		186,849
Cash and cash equivalents at end of period	$	7		$	103,862		$	5,196		$	—	$	109,065
SUPPLEMENTAL DISCLOSURES OF CASH FLOW ACTIVITIES:
Cash paid for interest	$	29,304		$	—		$	—		$	—	$	29,304
Cash paid for income taxes	$	—		$	426		$	224		$	—	$	650

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Recent Accounting Pronouncements (Details) - Accounting Standards Update 2016-02 [Member] $ in Millions	Jun. 30, 2018 USD ($)
Minimum
OperatingLeaseRightOfUseAssets	$ 27.0
Maximum
OperatingLeaseRightOfUseAssets	$ 30.0

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Revenues From Contracts With Customers (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 58,431	$ 37,426	$ 100,018	$ 81,505
Vessel Revenues
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	49,481	29,339	82,615	65,188
Vessel Management Revenues
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	7,974	7,320	15,733	14,773
Shore-based Facility Revenue
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 976	$ 767	$ 1,670	$ 1,544

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Revenues From Contracts With Customers Revenue, Remaining Performance Obligation (Details) - USD ($) $ in Millions	6 Months Ended
	Dec. 31, 2018	Jun. 30, 2018
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-03-31
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation		$ 16.4
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation		15.8
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation		$ 0.6
Subsequent Event [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	6 months
Subsequent Event [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year

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Reconciliation of Loss Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share [Abstract]
Net loss		$ (25,088)	$ (19,489)	$ (63,743)	$ (47,387)
Weighted average number of shares of common stock outstanding		37,496	36,769	37,419	36,683
Add: Net effect of dilutive stock options and unvested restricted stock	[1],[2],[3]	0	0	0	0
Weighted average number of dilutive shares of common stock outstanding		37,496	36,769	37,419	36,683
Loss per common share:
Basic loss per common share		$ (0.67)	$ (0.53)	$ (1.70)	$ (1.29)
Diluted loss per common share		$ (0.67)	$ (0.53)	$ (1.70)	$ (1.29)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		529	992	639	988

[1] Dilutive unvested restricted stock units are expected to fluctuate from quarter to quarter depending on the Company’s performance compared to a predetermined set of performance criteria. See Note 7 to these financial statements for further information regarding certain of the Company’s restricted stock grants.

[2] Due to a net loss, the Company excluded from the calculation of loss per share the effect of equity awards representing the rights to acquire 529 and 639 shares of common stock for the three and six months ended June 30, 2018 and 992 and 988 shares of common stock for the three and six months ended June 30, 2017, respectively.

[3] For the six months ended June 30, 2018 and 2017, the 2019 convertible senior notes were not dilutive, as the average price of the Company’s stock was less than the effective conversion price of such notes. It is the Company's stated intention to redeem the principal amount of its 2019 convertible senior notes in cash and the Company has used the treasury method for determining potential dilution in the diluted earnings per share computation.

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Long-Term Debt - Additional Information (Detail) $ in Thousands				3 Months Ended	6 Months Ended			12 Months Ended		72 Months Ended
		Oct. 01, 2018 USD ($)	Sep. 01, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($)		Jun. 30, 2017 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jun. 15, 2023	Jun. 15, 2017 USD ($)
Debt Instrument [Line Items]
Deferred financing costs					$ 8,452				$ 10,134
Deferred Gain					18,251				18,911
Debt, carrying value					1,083,094				1,080,826
Debt instrument, Face Amount					1,079,911				1,079,911
Long-term Debt, Fair Value					809,487				$ 717,955
Capitalized interest, approximate amount				$ 2,500	$ 2,300		$ 4,900
Senior Notes 5.875 Percent Due 2020
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					5.875%				5.875%
Debt Instrument, Maturity Date					Apr. 01, 2020				Apr. 01, 2020
Deferred financing costs					$ 1,611				$ 2,061
Senior Notes					365,331				364,881
Debt instrument, Face Amount					366,942				366,942
Long-term Debt, Fair Value					$ 274,289				$ 244,714
Senior Notes 5.000 Percent Due 2021
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					5.00%				5.00%
Debt Instrument, Maturity Date					Mar. 01, 2021				Mar. 01, 2021
Deferred financing costs					$ 2,657				$ 3,142
Senior Notes					447,343				446,858
Debt instrument, Face Amount					450,000				450,000
Long-term Debt, Fair Value					$ 295,313				$ 236,250
Convertible 1.500 Percent Senior Notes Due 2019
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					1.50%				1.50%
Debt Instrument, Maturity Date					Sep. 01, 2019				Sep. 01, 2019
Deferred financing costs					$ 1,055				$ 1,486
Senior Notes					93,885				91,527
Debt instrument, Face Amount					99,647				99,647
Long-term Debt, Fair Value					77,167				74,486
First-Lien Credit Facility Maturing Twenty Twenty Three
Debt Instrument [Line Items]
Deferred financing costs					$ 3,129				3,445
Line of Credit Facility, Expiration Date					Jun. 15, 2023
Deferred Gain					$ 17,457
Long-term Line of Credit					176,535	[1]			177,560
First Lien Credit Facility, Current Borrowing Capacity					0						$ 300,000
First-Lien Credit Facility Covenant Minimum Available Liquidity					25,000
First-Lien Credit Facility Covenant Minimum Liquidity For Prepayment					65,000
Debt instrument, Face Amount					163,322				163,322
Long-term Debt, Fair Value					$ 162,718				$ 162,505
First Lien Credit Facility Number Of Vessels Used As Collateral
Debt Instrument [Line Items]
First-Lien Credit Facility Collateral Number of Vessels											55
First Lien Credit Facility Number Of Newbuild MPSVs Used As Collateral
Debt Instrument [Line Items]
First-Lien Credit Facility Collateral Number of Vessels											2
Subsequent Event [Member]
Debt Instrument [Line Items]
First-Lien Credit Facility Covenant Minimum Delayed Draw Commitment								$ 68,000
Subsequent Event [Member] | Senior Notes 5.875 Percent Due 2020
Debt Instrument [Line Items]
Cash Interest Payments		$ 10,779
Subsequent Event [Member] | Senior Notes 5.000 Percent Due 2021
Debt Instrument [Line Items]
Cash Interest Payments			$ 11,250
Subsequent Event [Member] | Convertible 1.500 Percent Senior Notes Due 2019
Debt Instrument [Line Items]
Cash Interest Payments			$ 747
Subsequent Event [Member] | First-Lien Credit Facility Maturing Twenty Twenty Three
Debt Instrument [Line Items]
Cash Interest Payments	[2]							$ 1,202
London Interbank Offered Rate (LIBOR) | Subsequent Event [Member] | First-Lien Credit Facility Maturing Twenty Twenty Three
Debt Instrument [Line Items]
First Lien Credit Facility Floor Interest Rate										1.00%

[1] The carrying value of the Credit Facility due 2023 includes a deferred gain of $17,457 less original issue discount and deferred financing costs of $4,244.

[2] The interest rate on the Credit Facility is variable based on the Company's election. The amount reflected in this table is the monthly amount payable based on the 30-day LIBOR interest rate that was elected and in effect on June 30, 2018. Please see further discussion of the variable interest rate below.

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Long-Term Debt Cash Interest Payments on Long-Term Debt (Details) - Subsequent Event - USD ($) $ in Thousands				12 Months Ended
		Oct. 01, 2018	Sep. 01, 2018	Dec. 31, 2018
Senior Notes 5.875 Percent Due 2020
Debt Instrument [Line Items]
Cash Interest Payments		$ 10,779
Senior Notes 5.000 Percent Due 2021
Debt Instrument [Line Items]
Cash Interest Payments			$ 11,250
Convertible 1.500 Percent Senior Notes Due 2019
Debt Instrument [Line Items]
Cash Interest Payments			$ 747
First-Lien Credit Facility Maturing Twenty Twenty Three
Debt Instrument [Line Items]
Cash Interest Payments	[1]			$ 1,202

[1] The interest rate on the Credit Facility is variable based on the Company's election. The amount reflected in this table is the monthly amount payable based on the 30-day LIBOR interest rate that was elected and in effect on June 30, 2018. Please see further discussion of the variable interest rate below.

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Long-Term Debt (Detail) - USD ($) $ in Thousands	Jun. 30, 2018		Dec. 31, 2017
Debt Instrument [Line Items]
Debt Instrument, unamortized discount	$ 5,822		$ 7,862
Debt, carrying value	1,083,094		1,080,826
Debt Instrument, Face Amount	1,079,911		1,079,911
Long-term Debt, Fair Value	$ 809,487		$ 717,955
Senior Notes 5.875 Percent Due 2020
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.875%		5.875%
Senior Notes	$ 365,331		$ 364,881
Debt Instrument, Face Amount	366,942		366,942
Long-term Debt, Fair Value	$ 274,289		$ 244,714
Senior Notes 5.000 Percent Due 2021
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.00%		5.00%
Senior Notes	$ 447,343		$ 446,858
Debt Instrument, Face Amount	450,000		450,000
Long-term Debt, Fair Value	$ 295,313		$ 236,250
Convertible 1.500 Percent Senior Notes Due 2019
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.50%		1.50%
Debt Instrument, unamortized discount	$ 4,707		$ 6,634
Senior Notes	93,885		91,527
Debt Instrument, Face Amount	99,647		99,647
Long-term Debt, Fair Value	77,167		74,486
First-Lien Credit Facility Maturing Twenty Twenty Three
Debt Instrument [Line Items]
Debt Instrument, unamortized discount	1,115		1,228
First-lien credit facility due 2023, including deferred gain of $17,457 and $18,911, and net of original issue discount of $1,115 and $1,228, and deferred financing costs of $3,129 and $3,445	176,535	[1]	177,560
Debt Instrument, Face Amount	163,322		163,322
Long-term Debt, Fair Value	$ 162,718		$ 162,505

[1] The carrying value of the Credit Facility due 2023 includes a deferred gain of $17,457 less original issue discount and deferred financing costs of $4,244.

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Incentive Compensation - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2018 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation arrangements by share based payment award equity instruments granted	4,680,295
Performance Based Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period (in years)	3 years
Time Based Restricted Stock | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period (in years)	3 years
Amended Maximum number of shares available
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based incentive compensation plan, maximum number of shares covered	4,950,000
Performance Shares | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share awards depending on the performance goals	0.00%
Performance Shares | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share awards depending on the performance goals	150.00%
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	426,896
Time Based Restricted Stock Units | Restricted Stock Units (RSUs) | Cash Settled Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share awards granted in period	1,527,102
Performance Based Restricted Stock | Restricted Stock Units (RSUs) | Phantom Share Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share awards granted in period	939,391

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Financial Impact of Stock-Based Compensation Expense (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Loss before income taxes	$ 1,885	$ 972	$ 4,753	$ 3,014
Net loss	$ 1,500	$ 659	$ 3,850	$ 2,071
Earnings per share:
Basic earnings per common share, dollars per share	$ 0.04	$ 0.02	$ 0.10	$ 0.06
Diluted earnings per common share, dollars per share	$ 0.04	$ 0.02	$ 0.10	$ 0.06

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Commitments and Contingencies - Additional Information (Detail) $ in Thousands		1 Months Ended	6 Months Ended		12 Months Ended
	May 18, 2018 USD ($)	Nov. 30, 2011 Program	Jun. 30, 2018 USD ($) Vessel	Jun. 30, 2017 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Commitments and Contingencies Disclosure [Line Items]
Number of Vessels Purchased	4
Cost Of Vessel Purchase	$ 40,900		$ 40,868	$ 0
Finite-Lived Noncompete Agreements, Gross	$ 4,000
Newbuild program #5
Commitments and Contingencies Disclosure [Line Items]
Number Of Ship Construction Programs | Program		5
Number Of Vessels | Vessel			2
Aggregate cost of OSV newbuild program excluding construction period interest			$ 1,335,000
Cost incurred on OSV newbuild program			$ 1,273,200
Percentage of total project cost			95.40%
Subsequent Event | Newbuild program #5
Commitments and Contingencies Disclosure [Line Items]
Estimated Construction Cost, Year Six						$ 17,000
Estimated Construction Cost, Year Seven					$ 44,800

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Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Accrued Liabilities, Current [Abstract]
Accrued Rent	$ 5,278	$ 5,142
Deferred Revenue	2,122	460
Other Accrued Liabilities	5,618	2,855
Other Accrued Liabilities, Current	$ 13,018	$ 8,457

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Income Taxes (Details)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Percent	19.00%	31.30%

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Condensed Consolidating Financial Statements of Guarantors (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	$ 109,065	$ 186,849	$ 124,783	$ 217,027
Accounts Receivable, Net, Current	57,073	44,702
Other Assets, Current	16,006	16,890
Assets, Current	182,144	248,441
Property, Plant and Equipment, Net	2,482,733	2,501,013
Deferred Costs, Noncurrent	17,846	12,812
Due from Related Parties, Noncurrent	0	0
Equity Method Investments	0	0
Other Assets, Noncurrent	6,436	6,612
Assets	2,689,159	2,768,878
Accounts Payable, Current	19,615	16,196
Interest Payable, Current	15,790	14,734
Employee-related Liabilities, Current	12,364	9,475
Other Accrued Liabilities, Current	13,018	8,457
Liabilities, Current	60,787	48,862
Long-term Debt, Excluding Current Maturities	1,083,094	1,080,826
Deferred Tax Liabilities, Net, Noncurrent	179,124	197,465
Due to Related Parties	0	0
Other Liabilities, Noncurrent	2,522	3,801
Liabilities	1,325,527	1,330,954
Preferred Stock, Value, Issued	0	0
Common Stock, Value, Issued	376	371
Additional Paid in Capital	760,939	760,278
Retained Earnings (Accumulated Deficit)	604,855	668,598
Accumulated Other Comprehensive Income (Loss), Net of Tax	(2,538)	8,677
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	1,363,632	1,437,924
Liabilities and Equity	2,689,159	2,768,878
Consolidation, Eliminations
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	0	0	0	0
Accounts Receivable, Net, Current	(85)	0
Other Assets, Current	0	0
Assets, Current	(85)	0
Property, Plant and Equipment, Net	0	0
Deferred Costs, Noncurrent	0	0
Due from Related Parties, Noncurrent	(2,761,343)	(2,467,076)
Equity Method Investments	(730,008)	(799,336)
Other Assets, Noncurrent	0	0
Assets	(3,491,436)	(3,266,412)
Accounts Payable, Current	0	0
Interest Payable, Current	0	0
Employee-related Liabilities, Current	0	0
Other Accrued Liabilities, Current	(85)	0
Liabilities, Current	(85)	0
Long-term Debt, Excluding Current Maturities	0	0
Deferred Tax Liabilities, Net, Noncurrent	0	0
Due to Related Parties	(2,770,368)	(2,571,028)
Other Liabilities, Noncurrent	0	0
Liabilities	(2,770,453)	(2,571,028)
Preferred Stock, Value, Issued	0	0
Common Stock, Value, Issued	0	0
Additional Paid in Capital	(46,580)	(44,989)
Retained Earnings (Accumulated Deficit)	(674,403)	(650,395)
Accumulated Other Comprehensive Income (Loss), Net of Tax	0	0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(720,983)	(695,384)
Liabilities and Equity	(3,491,436)	(3,266,412)
Parent Company
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	7	4	16	9
Accounts Receivable, Net, Current	0	0
Other Assets, Current	53	29
Assets, Current	60	33
Property, Plant and Equipment, Net	0	0
Deferred Costs, Noncurrent	0	0
Due from Related Parties, Noncurrent	1,782,674	1,778,711
Equity Method Investments	721,406	790,734
Other Assets, Noncurrent	0	0
Assets	2,504,140	2,569,478
Accounts Payable, Current	0	0
Interest Payable, Current	15,790	14,734
Employee-related Liabilities, Current	0	0
Other Accrued Liabilities, Current	0	0
Liabilities, Current	15,790	14,734
Long-term Debt, Excluding Current Maturities	1,083,094	1,080,826
Deferred Tax Liabilities, Net, Noncurrent	0	0
Due to Related Parties	39,509	140,019
Other Liabilities, Noncurrent	0	0
Liabilities	1,138,393	1,235,579
Preferred Stock, Value, Issued	0	0
Common Stock, Value, Issued	376	371
Additional Paid in Capital	760,939	758,690
Retained Earnings (Accumulated Deficit)	604,432	574,838
Accumulated Other Comprehensive Income (Loss), Net of Tax	0	0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	1,365,747	1,333,899
Liabilities and Equity	2,504,140	2,569,478
Guarantor Subsidiaries
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	103,862	178,746	112,418	212,196
Accounts Receivable, Net, Current	51,970	40,407
Other Assets, Current	14,866	16,051
Assets, Current	170,698	235,204
Property, Plant and Equipment, Net	2,285,189	2,379,097
Deferred Costs, Noncurrent	15,967	11,408
Due from Related Parties, Noncurrent	758,505	648,920
Equity Method Investments	8,602	8,602
Other Assets, Noncurrent	5,890	5,984
Assets	3,244,851	3,289,215
Accounts Payable, Current	18,657	15,643
Interest Payable, Current	0	0
Employee-related Liabilities, Current	11,712	8,458
Other Accrued Liabilities, Current	12,555	8,129
Liabilities, Current	42,924	32,230
Long-term Debt, Excluding Current Maturities	0	0
Deferred Tax Liabilities, Net, Noncurrent	177,433	192,793
Due to Related Parties	2,264,292	2,240,832
Other Liabilities, Noncurrent	2,479	3,802
Liabilities	2,487,128	2,469,657
Preferred Stock, Value, Issued	0	0
Common Stock, Value, Issued	0	0
Additional Paid in Capital	37,978	37,975
Retained Earnings (Accumulated Deficit)	719,745	781,583
Accumulated Other Comprehensive Income (Loss), Net of Tax	0	0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	757,723	819,558
Liabilities and Equity	3,244,851	3,289,215
Non-Guarantor Subsidiaries
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	5,196	8,099	$ 12,349	$ 4,822
Accounts Receivable, Net, Current	5,188	4,295
Other Assets, Current	1,087	810
Assets, Current	11,471	13,204
Property, Plant and Equipment, Net	197,544	121,916
Deferred Costs, Noncurrent	1,879	1,404
Due from Related Parties, Noncurrent	220,164	39,445
Equity Method Investments	0	0
Other Assets, Noncurrent	546	628
Assets	431,604	176,597
Accounts Payable, Current	958	553
Interest Payable, Current	0	0
Employee-related Liabilities, Current	652	1,017
Other Accrued Liabilities, Current	548	328
Liabilities, Current	2,158	1,898
Long-term Debt, Excluding Current Maturities	0	0
Deferred Tax Liabilities, Net, Noncurrent	1,691	4,672
Due to Related Parties	466,567	190,177
Other Liabilities, Noncurrent	43	(1)
Liabilities	470,459	196,746
Preferred Stock, Value, Issued	0	0
Common Stock, Value, Issued	0	0
Additional Paid in Capital	8,602	8,602
Retained Earnings (Accumulated Deficit)	(44,919)	(37,428)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(2,538)	8,677
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(38,855)	(20,149)
Liabilities and Equity	$ 431,604	$ 176,597

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Condensed Consolidating Financial Statements of Guarantors Condensed Consolidating Statement of Operations(Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Condensed Income Statements, Captions [Line Items]
Revenues	$ 58,431	$ 37,426	$ 100,018	$ 81,505
Operating Costs and Expenses	34,858	31,368	70,827	59,303
Depreciation	24,630	24,679	49,278	49,356
Amortization of Deferred Charges	2,256	3,266	4,248	6,990
General and Administrative Expense	12,246	9,432	25,121	23,674
Costs and Expenses	73,990	68,745	149,474	139,323
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property	(13)	1	30	19
Operating Income (Loss)	(15,572)	(31,318)	(49,426)	(57,799)
Investment Income, Interest	519	464	1,163	865
Interest Expense	(16,401)	(13,429)	(30,346)	(27,238)
EquityinEarningsofConsolidatedSubsidiaries	0	0	0	0
Other Nonoperating Income (Expense)	(72)	54	(63)	(269)
Nonoperating Income (Expense)	(15,954)	2,567	(29,246)	(11,164)
Loss from Continuing Operations before Income Taxes, Noncontrolling Interest	(31,526)	(28,751)	(78,672)	(68,963)
Income Tax Expense (Benefit)	(6,438)	(9,262)	(14,929)	(21,576)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(25,088)	(19,489)	(63,743)	(47,387)
Gain on Extinguishment of Debt	0	15,478	0	15,478
Consolidation, Eliminations
Condensed Income Statements, Captions [Line Items]
Revenues	0	(305)	(57)	(263)
Operating Costs and Expenses	0	(307)	(54)	(267)
Depreciation	0	0	0	0
Amortization of Deferred Charges	0	0	0	0
General and Administrative Expense	0	(9)	(3)	(7)
Costs and Expenses	0	(316)	(57)	(274)
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property	0	0	0	0
Operating Income (Loss)	0	11	0	11
Investment Income, Interest	0	0	0	0
Interest Expense	0	0	0	0
EquityinEarningsofConsolidatedSubsidiaries	8,605	21,464	33,259	35,517
Other Nonoperating Income (Expense)	0	(11)	0	(11)
Nonoperating Income (Expense)	8,605	21,453	33,259	35,506
Loss from Continuing Operations before Income Taxes, Noncontrolling Interest	8,605	21,464	33,259	35,517
Income Tax Expense (Benefit)	0	0	0	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	8,605	21,464	33,259	35,517
Gain on Extinguishment of Debt		0		0
Parent Company
Condensed Income Statements, Captions [Line Items]
Revenues	0	0	0	0
Operating Costs and Expenses	0	0	0	0
Depreciation	0	0	0	0
Amortization of Deferred Charges	0	0	0	0
General and Administrative Expense	82	74	138	110
Costs and Expenses	82	74	138	110
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property	0	0	0	0
Operating Income (Loss)	(82)	(74)	(138)	(110)
Investment Income, Interest	0	0	0	0
Interest Expense	(16,401)	(13,429)	(30,346)	(27,238)
EquityinEarningsofConsolidatedSubsidiaries	(8,605)	(21,464)	(33,259)	(35,517)
Other Nonoperating Income (Expense)	0	0	0	0
Nonoperating Income (Expense)	(25,006)	(19,415)	(63,605)	(47,277)
Loss from Continuing Operations before Income Taxes, Noncontrolling Interest	(25,088)	(19,489)	(63,743)	(47,387)
Income Tax Expense (Benefit)	0	0	0	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(25,088)	(19,489)	(63,743)	(47,387)
Gain on Extinguishment of Debt		15,478		15,478
Guarantor Subsidiaries
Condensed Income Statements, Captions [Line Items]
Revenues	57,963	36,325	98,278	70,047
Operating Costs and Expenses	32,209	28,337	66,194	52,866
Depreciation	22,874	23,368	46,180	46,722
Amortization of Deferred Charges	1,939	2,903	3,738	6,215
General and Administrative Expense	11,456	8,734	23,825	22,320
Costs and Expenses	68,478	63,342	139,937	128,123
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property	(13)	1	30	18
Operating Income (Loss)	(10,528)	(27,016)	(41,629)	(58,058)
Investment Income, Interest	457	363	1,026	688
Interest Expense	0	0	0	0
EquityinEarningsofConsolidatedSubsidiaries	0	0	0	0
Other Nonoperating Income (Expense)	(2,036)	1,023	(20)	3,646
Nonoperating Income (Expense)	(1,579)	1,386	1,006	4,334
Loss from Continuing Operations before Income Taxes, Noncontrolling Interest	(12,107)	(25,630)	(40,623)	(53,724)
Income Tax Expense (Benefit)	(6,555)	(9,611)	(14,854)	(22,095)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(5,552)	(16,019)	(25,769)	(31,629)
Gain on Extinguishment of Debt		0		0
Non-Guarantor Subsidiaries
Condensed Income Statements, Captions [Line Items]
Revenues	468	1,406	1,797	11,721
Operating Costs and Expenses	2,649	3,338	4,687	6,704
Depreciation	1,756	1,311	3,098	2,634
Amortization of Deferred Charges	317	363	510	775
General and Administrative Expense	708	633	1,161	1,251
Costs and Expenses	5,430	5,645	9,456	11,364
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property	0	0	0	1
Operating Income (Loss)	(4,962)	(4,239)	(7,659)	358
Investment Income, Interest	62	101	137	177
Interest Expense	0	0	0	0
EquityinEarningsofConsolidatedSubsidiaries	0	0	0	0
Other Nonoperating Income (Expense)	1,964	(958)	(43)	(3,904)
Nonoperating Income (Expense)	2,026	(857)	94	(3,727)
Loss from Continuing Operations before Income Taxes, Noncontrolling Interest	(2,936)	(5,096)	(7,565)	(3,369)
Income Tax Expense (Benefit)	117	349	(75)	519
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ (3,053)	(5,445)	$ (7,490)	(3,888)
Gain on Extinguishment of Debt		$ 0		$ 0

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Condensed Consolidating Financial Statements of Guarantors Condensed Consolidating Statement of Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Condensed Statement of Income Captions [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ (25,088)	$ (19,489)	$ (63,743)	$ (47,387)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment	(10,916)	(2,976)	(11,215)	(1,207)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	(36,004)	(22,465)	(74,958)	(48,594)
Consolidation, Eliminations
Condensed Statement of Income Captions [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	8,605	21,464	33,259	35,517
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment	0	0	0	0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	8,605	21,464	33,259	35,517
Parent Company
Condensed Statement of Income Captions [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(25,088)	(19,489)	(63,743)	(47,387)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment	0	0	0	0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	(25,088)	(19,489)	(63,743)	(47,387)
Guarantor Subsidiaries
Condensed Statement of Income Captions [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(5,552)	(16,019)	(25,769)	(31,629)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment	0	0	0	(149)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	(5,552)	(16,019)	(25,769)	(31,778)
Non-Guarantor Subsidiaries
Condensed Statement of Income Captions [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(3,053)	(5,445)	(7,490)	(3,888)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment	(10,916)	(2,976)	(11,215)	(1,058)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ (13,969)	$ (8,421)	$ (18,705)	$ (4,946)

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Condensed Consolidating Financial Statements of Guarantors Condensed Consolidating Statement of Cash Flows (Details) - USD ($) $ in Thousands		6 Months Ended
	May 18, 2018	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Condensed Cash Flow Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		$ (27,653)	$ (24,126)
Cost Of Vessel Purchase	$ (40,900)	(40,868)	0
Costs Incurred For Offshore Supply Vessels Newbuild Program		(2,757)	(7,063)
Proceeds from Sale of Property, Plant, and Equipment		57	33
Payments to Acquire Property, Plant, and Equipment		(5,482)	(485)
Payments to Acquire Other Property, Plant, and Equipment		(81)	(548)
Net cash used in investing activities		(49,131)	(8,063)
Proceeds from Lines of Credit		0	980
Repurchase of Senior Debt		0	(5,057)
Repurchase of Convertible Debt		0	49,631
Deferred Financing Costs		0	5,636
Shares withheld for payment of employee withholding taxes		(536)	(573)
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options		260	258
Net Cash Provided by (Used in) Financing Activities		(276)	(59,659)
Effect of Exchange Rate on Cash and Cash Equivalents		(724)	(396)
Cash and Cash Equivalents, Period Increase (Decrease)		(77,784)	(92,244)
Cash and Cash Equivalents, at Carrying Value		109,065	124,783	$ 186,849	$ 217,027
Cash paid for interest		29,304	26,199
Income Taxes Paid		650	710
Notes Reduction		0	127,096
Consolidation, Eliminations
Condensed Cash Flow Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		0	0
Cost Of Vessel Purchase		0
Costs Incurred For Offshore Supply Vessels Newbuild Program		0	0
Proceeds from Sale of Property, Plant, and Equipment		0	0
Payments to Acquire Property, Plant, and Equipment		0	0
Payments to Acquire Other Property, Plant, and Equipment		0	0
Net cash used in investing activities		0	0
Proceeds from Lines of Credit			0
Repurchase of Senior Debt			0
Repurchase of Convertible Debt			0
Deferred Financing Costs			0
Shares withheld for payment of employee withholding taxes		0	0
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options		0	0
Net Cash Provided by (Used in) Financing Activities		0	0
Effect of Exchange Rate on Cash and Cash Equivalents		0	0
Cash and Cash Equivalents, Period Increase (Decrease)		0	0
Cash and Cash Equivalents, at Carrying Value		0	0	0	0
Cash paid for interest		0	0
Income Taxes Paid		0	0
Notes Reduction			0
Parent Company
Condensed Cash Flow Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		279	59,666
Cost Of Vessel Purchase		0
Costs Incurred For Offshore Supply Vessels Newbuild Program		0	0
Proceeds from Sale of Property, Plant, and Equipment		0	0
Payments to Acquire Property, Plant, and Equipment		0	0
Payments to Acquire Other Property, Plant, and Equipment		0	0
Net cash used in investing activities		0	0
Proceeds from Lines of Credit			980
Repurchase of Senior Debt			(5,057)
Repurchase of Convertible Debt			49,631
Deferred Financing Costs			5,636
Shares withheld for payment of employee withholding taxes		(536)	(573)
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options		260	258
Net Cash Provided by (Used in) Financing Activities		(276)	(59,659)
Effect of Exchange Rate on Cash and Cash Equivalents		0	0
Cash and Cash Equivalents, Period Increase (Decrease)		3	7
Cash and Cash Equivalents, at Carrying Value		7	16	4	9
Cash paid for interest		29,304	26,199
Income Taxes Paid		0	0
Notes Reduction			127,096
Guarantor Subsidiaries
Condensed Cash Flow Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		(26,825)	(91,432)
Cost Of Vessel Purchase		(40,868)
Costs Incurred For Offshore Supply Vessels Newbuild Program		(2,757)	(7,455)
Proceeds from Sale of Property, Plant, and Equipment		57	33
Payments to Acquire Property, Plant, and Equipment		(4,394)	(243)
Payments to Acquire Other Property, Plant, and Equipment		(97)	(531)
Net cash used in investing activities		(48,059)	(8,196)
Proceeds from Lines of Credit			0
Repurchase of Senior Debt			0
Repurchase of Convertible Debt			0
Deferred Financing Costs			0
Shares withheld for payment of employee withholding taxes		0	0
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options		0	0
Net Cash Provided by (Used in) Financing Activities		0	0
Effect of Exchange Rate on Cash and Cash Equivalents		0	(150)
Cash and Cash Equivalents, Period Increase (Decrease)		(74,884)	(99,778)
Cash and Cash Equivalents, at Carrying Value		103,862	112,418	178,746	212,196
Cash paid for interest		0	0
Income Taxes Paid		426	331
Notes Reduction			0
Non-Guarantor Subsidiaries
Condensed Cash Flow Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		(1,107)	7,640
Cost Of Vessel Purchase		0
Costs Incurred For Offshore Supply Vessels Newbuild Program		0	392
Proceeds from Sale of Property, Plant, and Equipment		0	0
Payments to Acquire Property, Plant, and Equipment		(1,088)	(242)
Payments to Acquire Other Property, Plant, and Equipment		16	(17)
Net cash used in investing activities		(1,072)	133
Proceeds from Lines of Credit			0
Repurchase of Senior Debt			0
Repurchase of Convertible Debt			0
Deferred Financing Costs			0
Shares withheld for payment of employee withholding taxes		0	0
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options		0	0
Net Cash Provided by (Used in) Financing Activities		0	0
Effect of Exchange Rate on Cash and Cash Equivalents		(724)	(246)
Cash and Cash Equivalents, Period Increase (Decrease)		(2,903)	7,527
Cash and Cash Equivalents, at Carrying Value		5,196	12,349	$ 8,099	$ 4,822
Cash paid for interest		0	0
Income Taxes Paid		$ 224	379
Notes Reduction			$ 0