# Diamond Offshore Drilling Inc. (DO)

Source: https://www.quantisnow.com/company/DO
Generated: 2026-11-08T08:58:33.440Z

- Ticker: DO
- Exchange: NYSE
- Sector: Energy
- Industry: Oil & Gas Production
- IPO year: 2022
- Website: https://www.diamondoffshore.com

## About

Diamond Offshore Drilling, Inc. provides contract drilling services to the energy industry worldwide. As of December 31, 2021, the company operated a fleet of 12 offshore drilling rigs, including four drillships and eight semisubmersible rigs. It serves independent oil and gas companies, and government-owned oil companies. The company was founded in 1953 and is headquartered in Houston, Texas.

## Latest DO news and filings

- 2024-09-16 11:51 UTC [SEC Form 15-12G filed by Diamond Offshore Drilling Inc.](https://www.quantisnow.com/insight/sec-form-15-12g-filed-by-diamond-offshore-drilling-inc-5694341)
- 2024-09-12 04:15 UTC [SEC Form EFFECT] [SEC Form EFFECT filed by Diamond Offshore Drilling Inc.](https://www.quantisnow.com/insight/sec-form-effect-filed-by-diamond-offshore-drilling-inc-5691203)
- 2024-09-12 04:15 UTC [SEC Form EFFECT] [SEC Form EFFECT filed by Diamond Offshore Drilling Inc.](https://www.quantisnow.com/insight/sec-form-effect-filed-by-diamond-offshore-drilling-inc-5691190)
- 2024-09-04 21:34 UTC [SEC Form 4] [SEC Form 4 filed by Director Peakes Adam C](https://www.quantisnow.com/insight/sec-form-4-filed-by-director-peakes-adam-c-5682370)
- 2024-09-04 21:34 UTC [SEC Form 4] [SEC Form 4 filed by Director Hollowell John](https://www.quantisnow.com/insight/sec-form-4-filed-by-director-hollowell-john-5682368)
- 2024-09-04 21:34 UTC [SEC Form 4] [SVP, General Counsel and Sec Roland David L sold $112,880 worth of shares (8,000 units at $14.11) and returned 286,124 shares to the company, closing all direct ownership in the company (SEC Form 4)](https://www.quantisnow.com/insight/svp-general-counsel-and-sec-roland-david-l-sold-112880-5682365)
- 2024-09-04 21:34 UTC [SEC Form 4] [SEC Form 4 filed by Director Douglas Patrice D](https://www.quantisnow.com/insight/sec-form-4-filed-by-director-douglas-patrice-d-5682357)
- 2024-09-04 21:34 UTC [SEC Form 4] [SEC Form 4 filed by Director Lowe Patrick Carey](https://www.quantisnow.com/insight/sec-form-4-filed-by-director-lowe-patrick-carey-5682356)
- 2024-09-04 21:34 UTC [SEC Form 4] [SEC Form 4 filed by Director Goldman Neal P](https://www.quantisnow.com/insight/sec-form-4-filed-by-director-goldman-neal-p-5682354)
- 2024-09-04 21:34 UTC [SEC Form 4] [SEC Form 4 filed by Director Duster Benjamin](https://www.quantisnow.com/insight/sec-form-4-filed-by-director-duster-benjamin-5682352)
- 2024-09-04 21:34 UTC [SEC Form 4] [President and CEO Wolford Bernie G. sold $366,860 worth of shares (26,000 units at $14.11) and returned 1,395,820 shares to the company, closing all direct ownership in the company (SEC Form 4)](https://www.quantisnow.com/insight/president-and-ceo-wolford-bernie-g-sold-366860-worth-of-5682351)
- 2024-09-04 21:34 UTC [SEC Form 4] [Senior Vice President and CFO Savarino Dominic A returned 324,057 shares to the company, closing all direct ownership in the company (SEC Form 4)](https://www.quantisnow.com/insight/senior-vice-president-and-cfo-savarino-dominic-a-returned-324057-5682350)
- 2024-09-04 21:34 UTC [SEC Form 4] [SVP & Chief Operating Officer Richards Jon L. returned 87,473 shares to the company, closing all direct ownership in the company (SEC Form 4)](https://www.quantisnow.com/insight/svp-chief-operating-officer-richards-jon-l-returned-87473-shares-5682349)
- 2024-09-04 20:11 UTC [SEC Form POS AM filed by Diamond Offshore Drilling Inc.](https://www.quantisnow.com/insight/sec-form-pos-am-filed-by-diamond-offshore-drilling-inc-5681913)
- 2024-09-04 20:10 UTC [SEC Form POS AM filed by Diamond Offshore Drilling Inc.](https://www.quantisnow.com/insight/sec-form-pos-am-filed-by-diamond-offshore-drilling-inc-5681867)
- 2024-09-04 20:05 UTC [SEC Form S-8 POS] [SEC Form S-8 POS filed by Diamond Offshore Drilling Inc.](https://www.quantisnow.com/insight/sec-form-s-8-pos-filed-by-diamond-offshore-drilling-inc-5681813)
- 2024-09-04 15:15 UTC [SEC Form 25-NSE filed by Diamond Offshore Drilling Inc.](https://www.quantisnow.com/insight/sec-form-25-nse-filed-by-diamond-offshore-drilling-inc-5681463)
- 2024-09-04 13:45 UTC [SEC Form 8-K] [Diamond Offshore Drilling Inc. filed SEC Form 8-K: Entry into a Material Definitive Agreement, Completion of Acquisition or Disposition of Assets, Termination of a Material Definitive Agreement, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Material Modification to Rights of Security Holders, Leadership Update, Changes in Control of Registrant](https://www.quantisnow.com/insight/diamond-offshore-drilling-inc-filed-sec-form-8-k-entry-into-5681389)
- 2024-08-30 20:01 UTC [Dividends] [Noble Corporation and Diamond Offshore Provide Update on Expected Closing of Transaction](https://www.quantisnow.com/insight/noble-corporation-and-diamond-offshore-provide-update-on-expected-closing-5677825)
- 2024-08-27 20:22 UTC [SEC Form 8-K] [SEC Form 8-K filed by Diamond Offshore Drilling Inc.](https://www.quantisnow.com/insight/sec-form-8-k-filed-by-diamond-offshore-drilling-inc-5673480)
- 2024-08-19 12:05 UTC [SEC Form 425] [SEC Form 425 filed by Diamond Offshore Drilling Inc.](https://www.quantisnow.com/insight/sec-form-425-filed-by-diamond-offshore-drilling-inc-5663798)
- 2024-08-19 12:00 UTC [SEC Form 8-K] [SEC Form 8-K filed by Diamond Offshore Drilling Inc.](https://www.quantisnow.com/insight/sec-form-8-k-filed-by-diamond-offshore-drilling-inc-5663782)
- 2024-08-07 19:05 UTC [SEC Form 10-Q] [SEC Form 10-Q filed by Diamond Offshore Drilling Inc.](https://www.quantisnow.com/insight/sec-form-10-q-filed-by-diamond-offshore-drilling-inc-5647004)
- 2024-08-07 10:01 UTC [SEC Form 8-K] [Diamond Offshore Drilling Inc. filed SEC Form 8-K: Regulation FD Disclosure](https://www.quantisnow.com/insight/diamond-offshore-drilling-inc-filed-sec-form-8-k-regulation-fd-5646053)
- 2024-08-06 20:05 UTC [Earnings Date] [Diamond Offshore Reports Second Quarter 2024 Results](https://www.quantisnow.com/insight/diamond-offshore-reports-second-quarter-2024-results-5644724)
- 2024-08-02 19:16 UTC [SEC Form 4] [President and CEO Wolford Bernie G. sold $558,280 worth of shares (34,000 units at $16.42), decreasing direct ownership by 5% to 678,496 units (SEC Form 4)](https://www.quantisnow.com/insight/president-and-ceo-wolford-bernie-g-sold-558280-worth-of-5640085)
- 2024-07-30 20:06 UTC [SEC Form 425] [SEC Form 425 filed by Diamond Offshore Drilling Inc.](https://www.quantisnow.com/insight/sec-form-425-filed-by-diamond-offshore-drilling-inc-5633146)
- 2024-07-29 17:10 UTC [SEC Form 4] [Senior Vice President and CFO Savarino Dominic A was granted 30,176 shares and covered exercise/tax liability with 11,166 shares, increasing direct ownership by 36% to 72,534 units (SEC Form 4)](https://www.quantisnow.com/insight/senior-vice-president-and-cfo-savarino-dominic-a-was-granted-5631054)
- 2024-07-29 17:04 UTC [SEC Form 4] [SVP, General Counsel and Sec Roland David L was granted 30,176 shares and covered exercise/tax liability with 7,348 shares, increasing direct ownership by 24% to 116,843 units (SEC Form 4)](https://www.quantisnow.com/insight/svp-general-counsel-and-sec-roland-david-l-was-granted-5631052)
- 2024-07-29 17:00 UTC [SEC Form 4] [SVP & Chief Operating Officer Richards Jon L. was granted 30,176 shares and covered exercise/tax liability with 7,348 shares, increasing direct ownership by 35% to 87,473 units (SEC Form 4)](https://www.quantisnow.com/insight/svp-chief-operating-officer-richards-jon-l-was-granted-30176-5631051)
- 2024-07-26 00:35 UTC [SEC Form 425] [SEC Form 425 filed by Diamond Offshore Drilling Inc.](https://www.quantisnow.com/insight/sec-form-425-filed-by-diamond-offshore-drilling-inc-5629136)
- 2024-07-26 00:34 UTC [SEC Form 8-K] [SEC Form 8-K filed by Diamond Offshore Drilling Inc.](https://www.quantisnow.com/insight/sec-form-8-k-filed-by-diamond-offshore-drilling-inc-5629134)
- 2024-07-25 21:30 UTC [Dividends] [Noble Corporation and Diamond Offshore Announce Expiration of Hart-Scott-Rodino Act Waiting Period and Provide Transaction Update](https://www.quantisnow.com/insight/noble-corporation-and-diamond-offshore-announce-expiration-of-hart-scott-rodino-act-5628955)
- 2024-07-25 20:27 UTC [SEC Form DEFM14A] [SEC Form DEFM14A filed by Diamond Offshore Drilling Inc.](https://www.quantisnow.com/insight/sec-form-defm14a-filed-by-diamond-offshore-drilling-inc-5628634)
- 2024-07-18 21:35 UTC [DIAMOND OFFSHORE ANNOUNCES NEW DRILLSHIP COMMITMENT](https://www.quantisnow.com/insight/diamond-offshore-announces-new-drillship-commitment-5616423)
- 2024-07-17 20:15 UTC [Earnings Date] [DIAMOND OFFSHORE TO RELEASE SECOND QUARTER 2024 RESULTS](https://www.quantisnow.com/insight/diamond-offshore-to-release-second-quarter-2024-results-5613348)
- 2024-07-16 15:27 UTC [SEC Form 4] [President and CEO Wolford Bernie G. sold $128,000 worth of shares (8,000 units at $16.00), decreasing direct ownership by 1% to 712,496 units (SEC Form 4)](https://www.quantisnow.com/insight/president-and-ceo-wolford-bernie-g-sold-128000-worth-of-5610287)
- 2024-07-02 19:57 UTC [SEC Form 4] [President and CEO Wolford Bernie G. sold $404,300 worth of shares (26,000 units at $15.55), decreasing direct ownership by 3% to 720,496 units (SEC Form 4)](https://www.quantisnow.com/insight/president-and-ceo-wolford-bernie-g-sold-404300-worth-of-5589693)
- 2024-07-02 19:54 UTC [SEC Form 4] [SVP & Chief Operating Officer Richards Jon L. converted options into 20,118 shares and covered exercise/tax liability with 4,899 shares, increasing direct ownership by 31% to 64,645 units (SEC Form 4)](https://www.quantisnow.com/insight/svp-chief-operating-officer-richards-jon-l-converted-options-into-5589686)
- 2024-07-02 19:52 UTC [SEC Form 4] [SVP, General Counsel and Sec Roland David L covered exercise/tax liability with 4,899 shares and converted options into 20,118 shares, increasing direct ownership by 19% to 94,015 units (SEC Form 4)](https://www.quantisnow.com/insight/svp-general-counsel-and-sec-roland-david-l-covered-exercisetax-5589677)

## More

- Live page with ratings, short volume, options and peers: https://www.quantisnow.com/company/DO
- Earnings history: https://www.quantisnow.com/earnings/DO
- Dividend history: https://www.quantisnow.com/dividends/DO
- Insider transactions: https://www.quantisnow.com/insiders/DO
- Options chain: https://www.quantisnow.com/options/DO
- SEC 8-K filings only: https://www.quantisnow.com/company/DO/8-k
- RSS and alerts for DO: https://www.quantisnow.com/docs/rss-feeds.md