Obbligazione Diamond Ocean Drilling 7.875% ( US25271CAP77 ) in USD

Emittente Diamond Ocean Drilling
Prezzo di mercato 100 USD  ⇌ 
Paese  Stati Uniti
Codice isin  US25271CAP77 ( in USD )
Tasso d'interesse 7.875% per anno ( pagato 2 volte l'anno)
Scadenza 15/08/2025 - Obbligazione è scaduto



Prospetto opuscolo dell'obbligazione Diamond Offshore Drilling US25271CAP77 in USD 7.875%, scaduta


Importo minimo 2 000 USD
Importo totale 500 000 000 USD
Cusip 25271CAP7
Standard & Poor's ( S&P ) rating N/A
Moody's rating N/A
Descrizione dettagliata Diamond Offshore Drilling è una società di perforazione offshore che fornisce servizi di perforazione di pozzi petroliferi e gas a compagnie petrolifere e del gas in tutto il mondo.

The Obbligazione issued by Diamond Ocean Drilling ( United States ) , in USD, with the ISIN code US25271CAP77, pays a coupon of 7.875% per year.
The coupons are paid 2 times per year and the Obbligazione maturity is 15/08/2025







424B2
424B2 1 d434437d424b2.htm 424B2
Table of Contents
Filed pursuant to Rule 424(b)(2)
Registration No. 333-202618
CALCULATION OF REGISTRATION FEE


Proposed
Proposed
Maximum
Maximum
Title of Each Class of
Amount to be
Offering Price
Aggregate
Amount of
Securities to be Registered

Registered

Per Share

Offering Price
Registration Fee(2)
7.875% Senior Notes due 2025

$500,000,000

(1)

$496,360,000

$57,528.12



(1)
The 7.875% Senior Notes due 2025 have a maximum public offering price of 99.272%.

(2)
Calculated in accordance with Rule 457(r) under the Securities Act of 1933, as amended.
Table of Contents

PROSPECTUS SUPPLEMENT
(To Prospectus dated March 9, 2015)


Diamond Offshore Drilling, Inc.
$500,000,000 7.875% Senior Notes due 2025

We are offering $500,000,000 aggregate principal amount of 7.875% senior notes due 2025, which we refer to as the
notes.
The notes will bear interest at the rate of 7.875% per year and mature on August 15, 2025. Interest on the notes is
payable on February 15 and August 15 of each year, beginning on February 15, 2018. Interest on the notes will accrue
from August 15, 2017.
We may redeem some or all of the notes at any time at the applicable redemption prices described in this prospectus
supplement under the caption "Description of Notes--Optional Redemption." In each case, we will also pay accrued and
unpaid interest, if any, to, but excluding, the redemption date.
The notes will be unsecured and will rank equally with all our other existing and future senior indebtedness.
The notes will be issued only in registered book-entry form, in denominations of $2,000 and integral multiples of $1,000 in
excess thereof. The notes are a new issue of securities with no established trading market. We do not currently intend to
apply for listing of the notes on any securities exchange or to be quoted on any automated quotation system.
Investing in the notes involves risks. See "Risk Factors" beginning on page S-9 and the information incorporated by
reference in this prospectus supplement for a discussion of important factors you should consider carefully before deciding
to purchase the notes.
The offering price set forth below does not include accrued interest, if any. Interest on the notes will accrue from
https://www.sec.gov/Archives/edgar/data/949039/000119312517245387/d434437d424b2.htm[8/2/2017 4:10:11 PM]


424B2
August 15, 2017 to the date of delivery.



Pe r N ot e

T ot a l

Public Offering Price

99.272%(1)
$496,360,000
Underwriting Discount and Commissions


1.25%

$
6,250,000
Proceeds to Diamond Offshore (before expenses)

98.022%

$490,110,000

(1) Plus interest, if any, from August 15, 2017 if settlement occurs after that date.
Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of the
notes or determined if this prospectus supplement or the accompanying base prospectus is truthful or complete. Any
representation to the contrary is a criminal offense.
The underwriters expect to deliver the notes to investors on or about August 15, 2017 in book-entry form through The
Depository Trust Company for the account of its participants, including Euroclear Bank S.A./N.V., as operator of the
Euroclear System, and Clearstream Banking, société anonyme.

Joint Physical Book-Running Managers
Ba rc la ys


J .P. M orga n


Joint Book-Running Managers

Cit igroup

H SBC

M U FG
SunT rust Robinson H um phre y

We lls Fa rgo Se c urit ie s


Co-Managers

RBC Ca pit a l M a rk e t s


Goldm a n Sa c hs & Co. LLC
Prospectus Supplement dated August 1, 2017.
Table of Contents
You should read this prospectus supplement along with the accompanying base prospectus carefully before you invest in the notes.
These documents contain or incorporate by reference important information you should consider before making your investment decision.
This prospectus supplement contains specific information about the notes being offered and the accompanying base prospectus contains a
general description of the notes. This prospectus supplement may add, update or change information in the accompanying base
prospectus. We have not, and the underwriters have not, authorized anyone else to provide any information other than that contained or
incorporated by reference in this prospectus supplement and the accompanying base prospectus or in any free writing prospectus
prepared by or on behalf of us or to which we have referred you. Neither we nor the underwriters take responsibility for, or can provide
assurance as to the reliability of, any other information that others may give you. You should not assume that the information contained
in this prospectus supplement and the accompanying base prospectus, as well as the information incorporated by reference, is accurate as
of any date other than the date on the front cover of this prospectus supplement, or the date of such incorporated information, as
applicable. Our business, financial condition, results of operations and prospects may have changed since those respective dates.
TABLE OF CONTENTS
Prospectus Supplement



Page
About this Prospectus Supplement
S-1
Where You Can Find More Information
S-1
Special Note Regarding Forward-Looking Statements
S-2
Prospectus Supplement Summary
S-6
Risk Factors
S-9
Use of Proceeds
S-12
Ratio of Earnings to Fixed Charges
S-13
Capitalization
S-14
https://www.sec.gov/Archives/edgar/data/949039/000119312517245387/d434437d424b2.htm[8/2/2017 4:10:11 PM]


424B2
Selected Consolidated Financial Data
S-15
Description of Notes
S-16
Certain Material United States Federal Income Tax Consequences
S-29
Underwriting
S-34
Legal Matters
S-38
Experts
S-38
Base Prospectus



Page
About This Prospectus


1
Forward-Looking Statements


1
About Diamond Offshore


1
Where You Can Find More Information


2
Use of Proceeds


3
Ratio of Earnings to Fixed Charges


3
Description of Debt Securities


3
Description of Capital Stock

12
Description of Warrants

16
Description of Subscription Rights

17
Description of Stock Purchase Contracts and Stock Purchase Units

18
Plan of Distribution

18
Legal Matters

22
Experts

22

S-i
Table of Contents
ABOUT THIS PROSPECTUS SUPPLEMENT
This document consists of two parts. The first part is this prospectus supplement, which describes the specific terms of the notes we are
offering and certain other matters relating to our business. The second part, the accompanying base prospectus, gives more general information,
some of which does not apply to the notes we are offering. Generally, when we refer to this prospectus, we are referring to both parts of this
document combined, including the information incorporated by reference in the prospectus. If the description of the notes in the prospectus
supplement differs from the description in the base prospectus, the description in the prospectus supplement supersedes the description in the base
prospectus and you should rely on the information in this prospectus supplement.
Before purchasing any notes, you should carefully read both this prospectus supplement and the accompanying base prospectus, together with
the additional information described under the heading "Where You Can Find More Information."
This prospectus supplement and the accompanying base prospectus do not constitute an offer to sell, or the solicitation of an offer to buy, any
securities other than the registered securities to which they relate, nor do this prospectus supplement and the accompanying base prospectus
constitute an offer to sell or a solicitation of an offer to buy these securities in any jurisdiction to any person to whom it is unlawful to make such
offer or solicitation in such jurisdiction.
In this prospectus supplement and the accompanying base prospectus, unless otherwise specified or the context otherwise requires, references
to "dollars" and "$" are to U.S. dollars. Unless otherwise specified or the context otherwise requires, when used in this prospectus supplement, the
terms "Diamond Offshore," "we," "our company," "our" and "us" refer to Diamond Offshore Drilling, Inc., a Delaware corporation, and its
consolidated subsidiaries.
This prospectus supplement and the accompanying base prospectus are based on information provided by us and by other sources that we
believe are reliable. We cannot assure you that this information is accurate or complete. This prospectus supplement and the accompanying base
prospectus summarize certain documents and other information and we refer you to them for a more complete understanding of what we discuss in
this prospectus supplement and the accompanying base prospectus. In making an investment decision, you must rely on your own examination of
our company and the terms of the offering and the notes, including the merits and risks involved.
We are not making any representation to any purchaser of the notes regarding the legality of an investment in the notes by such purchaser
under any legal investment or similar laws or regulations. You should not consider any information in this prospectus supplement or the
https://www.sec.gov/Archives/edgar/data/949039/000119312517245387/d434437d424b2.htm[8/2/2017 4:10:11 PM]


424B2
accompanying base prospectus to be legal, business or tax advice. You should consult your own attorney, business advisor and tax advisor for
legal, business and tax advice regarding an investment in the notes.
WHERE YOU CAN FIND MORE INFORMATION
We have filed with the Securities and Exchange Commission, or the "Commission," a registration statement under the Securities Act of 1933,
as amended, or the "Securities Act," that registers the distribution of the notes. The registration statement, including the attached exhibits, contains
additional relevant information about us and the securities we may offer. The rules and regulations of the Commission allow us to omit certain
information included in the registration statement from this prospectus supplement and the accompanying base prospectus.
We file annual, quarterly and current reports, proxy statements and other information with the Commission. You may read and copy any
reports or other information that we file with the Commission at the Commission's

S-1
Table of Contents
Public Reference Room located at 100 F Street, N.E., Washington D.C. 20549. You may also receive copies of these documents upon payment of a
duplicating fee by writing to the Commission's Public Reference Room. Please call the Commission at 1-800-SEC-0330 for further information on
the Public Reference Room. Our filings with the Commission are also available to the public from commercial document retrieval services, at our
website (www.diamondoffshore.com) and at the Commission's website (www.sec.gov). Information on our website is not incorporated into this
prospectus or our other filings with the Commission and is not a part of this prospectus or those filings.
The Commission allows us to "incorporate by reference" the information that we file with it into this prospectus supplement and the
accompanying base prospectus. This means that we can disclose important information to you by referring you to other documents filed separately
with the Commission, including our annual, quarterly and current reports. The information incorporated by reference is considered to be a part of
this prospectus supplement and the accompanying base prospectus, except for any information that is modified or superseded by information
contained in this prospectus supplement or any other subsequently filed document that is incorporated by reference into this prospectus. The
information incorporated by reference is an important part of this prospectus supplement and the accompanying base prospectus. All documents
filed (but not those or portions thereof that are furnished) by us with the Commission pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Securities
Exchange Act of 1934, as amended, or the "Exchange Act," between the date of this prospectus supplement and the termination or completion of
the offering of the notes will be incorporated by reference into this prospectus and will automatically update and supersede the information in this
prospectus supplement, the accompanying base prospectus and any previously filed document that is incorporated by reference into this prospectus.
The following documents have been filed by us with the Commission (File No. 1-13926) and are incorporated by reference into this
prospectus:


· Our annual report on Form 10-K for the fiscal year ended December 31, 2016;

· Those portions of our definitive proxy statement on Schedule 14A filed on March 28, 2017 incorporated by reference into our annual

report on Form 10-K for the fiscal year ended December 31, 2016;


· Our quarterly reports on Form 10-Q for our fiscal quarters ended March 31, 2017 and June 30, 2017; and

· Our current reports on Form 8-K filed January 31, 2017, May 17, 2017 and, with respect to Item 8.01 and Exhibit 12.1 thereto only,

July 31, 2017.
You can obtain any of the documents incorporated herein by reference from us without charge (other than exhibits unless such exhibits are
specifically incorporated by reference in this prospectus supplement). You may request a copy of these filings by writing or telephoning us at the
following address or telephone number:
Diamond Offshore Drilling, Inc.
15415 Katy Freeway, Suite 100
Houston, Texas 77094
Attention: Investor Relations
Telephone: (281) 492-5300
SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS
https://www.sec.gov/Archives/edgar/data/949039/000119312517245387/d434437d424b2.htm[8/2/2017 4:10:11 PM]


424B2
Investors are cautioned that certain statements contained or incorporated by reference in this prospectus supplement constitute "forward-
looking statements" within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act. All statements other than
statements of historical fact are, or may be deemed to be, forward-looking statements. Forward-looking statements include, without limitation, any
statement that may project, indicate or imply future results, events, performance or achievements, and may contain or be identified

S-2
Table of Contents
by the words "expect," "intend," "plan," "predict," "anticipate," "estimate," "believe," "should," "could," "may," "might," "will," "will be," "will
continue," "will likely result," "project," "forecast," "budget" and similar expressions. In addition, any statement concerning future financial
performance (including, without limitation, future revenues, earnings or growth rates), ongoing business strategies or prospects, and possible
actions taken by or against us, which may be provided by management, are also forward-looking statements as so defined. Statements that contain
forward-looking statements include, but are not limited to, information concerning our possible or assumed future results of operations and
statements about the following subjects:


· market conditions and the effect of such conditions on our future results of operations;


· sources and uses of and requirements for financial resources and sources of liquidity;


· contractual obligations and future contract negotiations;


· interest rate and foreign exchange risk;


· operations outside the United States;


· business strategy;


· growth opportunities;


· competitive position including, without limitation, competitive rigs entering the market;


· expected financial position;


· cash flows and contract backlog;


· future term of the Petróleo Brasileiro S.A. drilling contract for the Ocean Valor and the enforcement of our rights under the contract;


· idling drilling rigs or reactivating stacked rigs;


· declaration and payment of regular or special dividends;


· financing plans;


· market outlook;


· tax planning;


· debt levels and the impact of changes in the credit markets and credit ratings for our debt;


· budgets for capital and other expenditures;


· timing and duration of required regulatory inspections for our drilling rigs;


· timing and cost of completion of capital projects;


· delivery dates and drilling contracts related to capital projects or rig acquisitions;


· plans and objectives of management;


· scrapping retired rigs;


· assets held for sale;


· purchasing or constructing rigs;


· asset impairments and impairment evaluations;

https://www.sec.gov/Archives/edgar/data/949039/000119312517245387/d434437d424b2.htm[8/2/2017 4:10:11 PM]


424B2

· our internal controls and remediation of our material weakness in internal control over financial reporting;


· performance of contracts;


· outcomes of legal proceedings;

S-3
Table of Contents

· purchases of our securities, including, without limitation, the Make-Whole Redemption (as defined below);


· compliance with applicable laws; and


· availability, limits and adequacy of insurance or indemnification.
These types of statements are based on current expectations about future events and inherently are subject to a variety of assumptions, risks
and uncertainties, many of which are beyond our control, that could cause actual results to differ materially from those expected, projected or
expressed in forward-looking statements. These risks and uncertainties include, among others, the following:

· those described under "Risk Factors" in Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2016 and in this

prospectus supplement beginning on page S-9;

· general economic and business conditions and trends, including recessions and adverse changes in the level of international trade

activity;


· worldwide supply and demand for oil and natural gas;


· changes in foreign and domestic oil and gas exploration, development and production activity;


· oil and natural gas price fluctuations and related market expectations;

· the ability of the Organization of Petroleum Exporting Countries, commonly called OPEC, to set and maintain production levels and

pricing, and the level of production in non-OPEC countries;


· policies of various governments regarding exploration and development of oil and gas reserves;


· inability to obtain contracts for our rigs that do not have contracts;


· the cancellation of contracts included in our reported contract backlog;


· advances in exploration and development technology;

· the worldwide political and military environment, including, for example, in oil-producing regions and locations where our rigs are

operating;


· casualty losses;


· operating hazards inherent in drilling for oil and gas offshore;


· the risk that dividends may not be declared or paid;


· the risk of physical damage to rigs and equipment caused by named windstorms in the U.S. Gulf of Mexico;


· industry fleet capacity;


· market conditions in the offshore contract drilling industry, including, without limitation, dayrates and utilization levels;


· competition;


· changes in foreign, political, social and economic conditions;

· risks of international operations, compliance with foreign laws and taxation policies and seizure, expropriation, nationalization,

deprivation, malicious damage or other loss of possession or use of equipment and assets;


· risks of potential contractual liabilities pursuant to our various drilling contracts in effect from time to time;


· customer or supplier bankruptcy, liquidation or other financial difficulties;
https://www.sec.gov/Archives/edgar/data/949039/000119312517245387/d434437d424b2.htm[8/2/2017 4:10:11 PM]


424B2

S-4
Table of Contents

· the ability of customers and suppliers to meet their obligations to us and our subsidiaries;


· collection of receivables;


· foreign exchange and currency fluctuations and regulations, and the inability to repatriate income or capital;


· risks of war, military operations, other armed hostilities, terrorist acts and embargoes;


· changes in offshore drilling technology, which could require significant capital expenditures in order to maintain competitiveness;

· regulatory initiatives and compliance with governmental regulations including, without limitation, regulations pertaining to climate

change, greenhouse gases, carbon emissions or energy use;


· compliance with and liability under environmental laws and regulations;

· potential changes in accounting policies by the Financial Accounting Standards Board, the Commission or regulatory agencies for our

industry which may cause us to revise our financial accounting and/or disclosures in the future, and which may change the way analysts
measure our business or financial performance;


· development and exploitation of alternative fuels;


· customer preferences;


· effects of litigation, tax audits and contingencies and the impact of compliance with judicial rulings and jury verdicts;


· cost, availability, limits and adequacy of insurance;

· invalidity of assumptions used in the design of our controls and procedures and the risk that the measures we have taken to remediate our

material weakness in internal control over financial reporting will not be effective or that additional material weaknesses may arise in the
future;


· the results of financing efforts;


· adequacy and availability of our sources of liquidity;


· risks resulting from our indebtedness;


· public health threats;


· negative publicity;


· impairments of assets; and


· the availability of qualified personnel to operate and service our drilling rigs.
The risks and uncertainties listed above are not exhaustive. Other sections of this prospectus supplement and our other filings with the
Commission include additional factors that could adversely affect our business, results of operations and financial performance. Given these risks
and uncertainties, investors should not place undue reliance on forward-looking statements. Each forward-looking statement speaks only as of the
date of the particular statement. We expressly disclaim any obligation or undertaking to release publicly any updates or revisions to any forward-
looking statement to reflect any change in our expectations or beliefs with regard to the statement or any change in events, conditions or
circumstances on which any forward-looking statement is based. In addition, in this prospectus supplement and our other filings with the
Commission incorporated by reference herein, we may refer to reports published by third parties that purport to describe trends or developments in
energy production or drilling and exploration activity. While we believe that each of these reports is reliable, neither we nor the underwriters have
independently verified the information included in such reports. We and the underwriters specifically disclaim any responsibility for the accuracy
and completeness of such information and we undertake no obligation to update such information.

S-5
Table of Contents
https://www.sec.gov/Archives/edgar/data/949039/000119312517245387/d434437d424b2.htm[8/2/2017 4:10:11 PM]


424B2
PROSPECTUS SUPPLEMENT SUMMARY
This summary highlights selected information about our company and the offering and may not contain all of the information that is
important to you. To better understand this offering, you should read this entire document carefully, as well as those additional documents to
which we refer you. See "Where You Can Find More Information."
About Diamond Offshore Drilling, Inc.
We provide contract drilling services to the energy industry around the globe with a fleet of 19 offshore drilling rigs, excluding five
semisubmersible rigs that we plan to retire and scrap in the near future. These retired units, which are currently cold stacked, include the Ocean
Baroness, Ocean Alliance, Ocean Vanguard, Ocean Nomad and Ocean Princess. Our current fleet consists of four drillships, 14 semisubmersibles
and one jack-up rig. The Ocean Monarch, which had been in a shipyard for a survey and contract modifications since the first quarter of 2017,
began operating under the first of three contracts in Australia late in the second quarter of 2017. Of our current fleet, as of July 31, 2017, three
ultra-deepwater and three deepwater semisubmersible rigs were cold stacked, in addition to the five rigs to be scrapped.
We drill in the waters of North America, South America, Europe, Africa, Asia, the Middle East and Australia. We offer comprehensive
drilling services to the global energy industry.
Our principal executive offices are located at 15415 Katy Freeway, Houston, Texas 77094, and our telephone number at that location is
(281) 492-5300.
Recent Developments
We intend to call for redemption all of the outstanding aggregate principal amount of our 5.875% Senior Notes due May 1, 2019, or the 2019
Notes, at a "make-whole" premium price calculated by the Quotation Agent (as defined in the governing indenture) in accordance with the 2019
Notes and the indenture governing the 2019 Notes, which we refer to as the Make-Whole Redemption. As of June 30, 2017, $500.0 million
aggregate principal amount of the 2019 Notes was outstanding. The indenture governing the 2019 Notes permits us to redeem all or a portion of the
2019 Notes for cash at any time at a redemption price equal to the greater of (1) 100% of the principal amount of the 2019 Notes to be redeemed
and (2) as determined by the Quotation Agent, the sum of the present values of the remaining scheduled payments of principal and interest on such
2019 Notes (not including any portion of any payments of interest accrued as of the redemption date) discounted to the redemption date on a semi-
annual basis at the Adjusted Treasury Rate (as defined in the governing indenture) plus 45 basis points, plus, in either case, accrued and unpaid
interest on the principal amount of the 2019 Notes redeemed to the date of redemption. This prospectus supplement does not constitute a notice of
redemption of the 2019 Notes.
We intend to use the net proceeds from this offering, together with cash on hand, to fund the Make-Whole Redemption and the payment of
any related fees and expenses and any remaining proceeds for general corporate purposes. This offering is not conditioned upon the consummation
of the Make-Whole Redemption. See "Use of Proceeds."

S-6
Table of Contents
The Offering

Issuer
Diamond Offshore Drilling, Inc.

Notes offered
$500,000,000 aggregate principal amount of 7.875% Senior Notes due 2025.

Maturity date
August 15, 2025.

Interest rate
7.875% per year.

Interest payment dates
February 15 and August 15 of each year, beginning on February 15, 2018. Interest on the
notes will accrue from August 15, 2017.

Ranking
The notes will be our senior unsecured obligations and will rank equally in right of
payment to all our existing and future senior indebtedness. The notes will be structurally
https://www.sec.gov/Archives/edgar/data/949039/000119312517245387/d434437d424b2.htm[8/2/2017 4:10:11 PM]


424B2
subordinated to all existing and future obligations of our subsidiaries, which will not
guarantee the notes. As of June 30, 2017, Diamond Offshore Drilling, Inc. had
approximately $2.0 billion aggregate principal amount of total indebtedness outstanding,
none of which was secured. As of June 30, 2017, our subsidiaries had no third party
indebtedness outstanding. See "Capitalization."

Optional redemption
We may redeem some or all of the notes at any time prior to May 15, 2025 at the "make-
whole" redemption price discussed under the caption "Description of Notes--Optional
Redemption." We may redeem some or all of the notes at any time on or after May
15, 2025 at a price equal to 100% of the principal amount of the notes being redeemed.

In each case, we will also pay accrued and unpaid interest, if any, to, but excluding, the

redemption date.

For a more complete description of the optional redemption provisions of the notes, please

read "Description of Notes--Optional Redemption."

Certain covenants
The indenture governing the notes, which we refer to as the indenture, will contain
covenants that limit, among other things, subject to certain exceptions, our ability to:

· consolidate with or merge into another entity or convey or transfer our properties and

assets substantially as a whole;


· create liens; and


· enter into a sale and lease-back transaction covering a drilling rig or drillship.

S-7
Table of Contents
See "Description of Notes--Limitation on Merger, Consolidation and Certain Sale of

Assets" and "Description of Notes--Certain Covenants of the Company."

The indenture does not limit the amount of unsecured debt that we or our subsidiaries may

incur.

Form and denomination
The notes will be issued in fully registered form in denominations of $2,000 and integral
multiples of $1,000 in excess thereof.

Further issues
We may from time to time, without the consent of the holders of the notes, issue additional
debt securities having the same ranking and the same interest rate, maturity and other terms
as the notes offered hereby, except for the issue date and offering price and, in some cases,
the first interest payment date. See "Description of Notes--Further Issues."

Use of proceeds
We intend to use the net proceeds from this offering, together with cash on hand, to fund
the Make-Whole Redemption and the payment of any related fees and expenses and any
remaining proceeds for general corporate purposes. Pending their application, we may
invest the net proceeds in short term investments. See "Use of Proceeds." Certain of the
underwriters or their affiliates may hold the 2019 Notes and, to the extent we use proceeds
from this offering to fund the Make-Whole Redemption, may receive proceeds from this
offering. See "Underwriting--Other Relationships."

Risk factors
You should carefully consider the specific factors set forth under "Risk Factors," beginning
on page S-9 of this prospectus supplement as well as the other information and data
included elsewhere or incorporated by reference in this prospectus supplement and the
accompanying base prospectus, before making an investment decision.

https://www.sec.gov/Archives/edgar/data/949039/000119312517245387/d434437d424b2.htm[8/2/2017 4:10:11 PM]


424B2
Governing law
The indenture and the notes will be governed by, and construed in accordance with, the
laws of the State of New York.

Trustee
The Bank of New York Mellon Trust Company, N.A.

S-8
Table of Contents
RISK FACTORS
An investment in the notes involves risks. Before making a decision to purchase the notes, and in consultation with your own financial and
legal advisors, you should consider carefully the following matters, in addition to the other information included elsewhere or incorporated by
reference in this prospectus supplement and the accompanying base prospectus, including under the heading "Risk Factors" in our Annual Report
on Form 10-K for the fiscal year ended December 31, 2016.
Risks Relating to the Notes and Our Indebtedness
Our holding company structure results in substantial structural subordination and may affect our ability to make payments on the notes.
The notes are obligations exclusively of Diamond Offshore Drilling, Inc. We are a holding company, and substantially all operations are
conducted by our subsidiaries. As a result, our cash flow and our ability to service our debt, including the notes offered hereby, is dependent upon
the earnings of our subsidiaries. In addition, our ability to service our debt is dependent on the distribution of earnings, loans or other payments by
our subsidiaries to us.
Our subsidiaries are separate and distinct legal entities. Our subsidiaries have no obligation to pay any amounts due on the notes or to provide
us with funds for our payment obligations, whether by dividends, distributions, loans or other payments. In addition, any payment of dividends,
distributions, loans or advances by our subsidiaries to us could be subject to statutory or contractual restrictions. Payments to us by our subsidiaries
will also be contingent upon their earnings, cash flows and business considerations.
Our right to receive any assets of any of our subsidiaries upon their liquidation or reorganization, and therefore the right of the holders of the
notes to participate in the profits or a distribution of those assets, will be structurally subordinated to the claims of that subsidiary's creditors,
including trade creditors. In addition, even if we were a creditor of any of our subsidiaries, our rights as a creditor would be subordinate to any
security interest in the assets of our subsidiaries and any indebtedness of our subsidiaries senior to that held by us.
Our debt agreements allow us to incur significantly more debt, which, if incurred, could exacerbate the other risks described in this prospectus
supplement.
The terms of our debt instruments permit us to incur additional indebtedness. The incurrence of such debt may be necessary to comply with
regulatory obligations to maintain our assets, to satisfy regulatory service obligations, to adequately respond to competition or for financial reasons
alone. Incremental borrowings or borrowings at maturities that impose additional financial risks to our various efforts to improve our financial
condition and results of operations would exacerbate the other risks described in this prospectus supplement and the documents incorporated by
reference into the accompanying base prospectus.
Servicing our debt requires a significant amount of cash, and we may not be able to generate sufficient cash flow from our business to meet
our debt obligations.
Our earnings and cash flow may vary significantly from time to time due to the cyclical nature of our industry. Our ability to make
scheduled payments of the principal of, to pay interest on or to refinance our indebtedness, including the notes, depends on our future performance,
which is subject to economic, financial, competitive and other factors beyond our control. Our future cash flow may be insufficient to meet our
debt obligations and commitments, including the notes. If we are unable to generate such cash flow, we may be required to adopt one or more
alternatives, such as selling assets, restructuring debt or obtaining additional equity capital on terms that may be onerous. Our ability to refinance
our indebtedness will depend on the capital markets and our financial condition at such time. We may not be able to engage in any of these
activities or engage in these activities on desirable terms, which could result in a default on our debt obligations.

S-9
https://www.sec.gov/Archives/edgar/data/949039/000119312517245387/d434437d424b2.htm[8/2/2017 4:10:11 PM]


Document Outline