UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report: (Date of earliest event reported): September 4, 2018

Diamond Offshore Drilling, Inc.

(Exact name of registrant as specified in its charter)

15415 Katy Freeway

Houston, Texas 77094

(Address of principal executive offices, including Zip Code)

(281) 492-5300

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

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.  ☐

Marc Edwards, President and Chief Executive Officer of Diamond Offshore Drilling, Inc. (the “Company”), will be presenting at the Barclays CEO Energy-Power Conference in New York City, New York. Mr. Edwards is scheduled to speak on September 5, 2018, commencing at approximately 1:05 p.m. Eastern Time. A live webcast of the presentation will be available, and a replay of the presentation can be accessed at www.diamondoffshore.com/ir.

The information contained in Item 7.01 of this report shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and shall not be incorporated by reference into any previous or future registration statement filed under the Securities Act of 1933, as amended (the “Securities Act”), unless specifically identified therein as being incorporated by reference.

Any oral or written statements made during or in connection with the presentation referenced in this report that are not historical facts are “forward-looking statements” within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act. Such statements may include, but are not limited to, statements concerning the extension of the Ocean BlackHawk contract, including future dayrates, revenues and extensions, and the timing of future maintenance activities and the early release of the Ocean BlackHornet contract; new drilling contracts with and future payments from BP, including the timing, duration, commencement, dayrates and revenue associated therewith and any future drilling contracts; future drilling projects and commencement dates for the Ocean GreatWhite; drilling operations and timing; contract effectiveness, effective dates and estimated durations; expectations regarding rig downtime, reactivation, surveys, retirement, availability, utilization and scrapping; future impairments; expectations of future backlog and revenue expected to result from backlog, revenue, operating costs and performance; future liquidity, financial condition, market conditions, commodity prices and strategic opportunities; future contract dayrates, status and termination rights; contract noncompliance by customers and other third parties; outcomes of customer discussions; future impact of regulations; future outcome of litigation; and other statements that are not of historical fact. Forward-looking statements are inherently uncertain and subject to a variety of assumptions, risks and uncertainties that could cause actual results to differ materially from those currently anticipated or expected by management of the Company. A discussion of certain of the risk factors and other considerations that could materially impact these matters as well as the Company’s overall business and financial performance can be found in the Company’s reports filed with the Securities and Exchange Commission, and readers of this report are urged to review those reports carefully when considering these forward-looking statements. These risk factors include, among others, risks associated with worldwide demand for drilling services, level of activity in the oil and gas industry, renewing or replacing expired or terminated contracts, contract cancellations and terminations, maintenance and realization of backlog, competition and industry fleet capacity, litigation and disputes, operating risks and various other factors, many of which are beyond the Company’s control. Given these risk factors and other considerations, investors and analysts should not place undue reliance on forward-looking statements. Each forward-looking statement speaks only as of the date of such statement, and the Company expressly disclaims any obligation or undertaking to release publicly any updates or revisions to any forward-looking statement to reflect any change in the Company’s expectations with regard thereto or any change in events, conditions or circumstances on which any forward-looking statement is based.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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