Douglas I. Ostrover
Co-Founder @ Blackstone Credit
New York, United States
Douglas I. Ostrover is a post-ipo equity investor at Blackstone Credit in New York focused on Energy and Oil and Gas. Doug Ostrover is a Co-Founder of Owl Rock Capital Partners LP and also serves as Chief Executive Officer and Co-Chief Investment Officer of Owl Rock Capital Advisors LLC, Owl Rock Technology Advisors LLC, Owl Rock Diversified Advisors LLC and Owl Rock Private Fund Advisors LLC, and is a member of the Investment Committee of each of the Company, OwlRock Capital Corporation II, Owl Rock Capital Corporation III, Owl Rock Technology Finance Corp. and Owl Rock Core Income Corp. In addition, Mr. Ostrover served on the boards of directors of the Company and Owl Rock Corporation II from 2016-2021, on the board of directors of Owl Rock Technology Finance Corp. from 2018-2021, and on the boards of directors of Owl Rock Capital Corporation III and Owl Rock Core Income Corp. from 2020-2021.Mr. Ostrover is also a Co-Founder and Chief Executive Officer of Blue Owl, a member of the firm’s Executive Committee and a member of the firm’s board of directors.Prior to co-founding Owl Rock, Mr. Ostrover was one of the founders of GSO Capital Partners (GSO), Blackstone’s alternative credit platform, and a Senior Managing Director at Blackstone until June 2015. Prior to co-founding GSO in 2005, Mr. Ostrover was a Managing Director and Chairman of the Leveraged Finance Group of Credit Suisse First Boston (CSFB). Prior to his role as Chairman, Mr. Ostrover was Global Co-Head of CSFB’s Leveraged Finance Group, during which time he was responsible for all of CSFB’s origination, distribution and trading activities relating to high yield securities, leveraged loans, high yield credit derivatives and distressed securities. Mr. Ostrover was a member of CSFB’s Management Council and the Fixed Income Operating Committee. Mr. Ostrover joined CSFB in November 2000 when CSFB acquired Donaldson, Lufkin & Jenrette (DLJ), where he was a Managing Director in charge of High Yield and Distressed Sales, Trading and Research. Mr. Ostrover had been a member of DLJ’s high yield team since he joined the firm in 1992.
- Total investments:
- 1
- Last investment:
- Lead investor:
- 100%
Last updated:
For AI agents: llms.txt
Industries Douglas I. Ostrover invests in
Stages Douglas I. Ostrover invests in
Countries Douglas I. Ostrover invests in
Contacts
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Investment Focus
Industry
- Energy 1 (100%)
- Oil and Gas 1 (100%)
- Manufacturing 1 (100%)
- Information Technology 1 (100%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Rentech, Inc. (Rentech) is a provider of clean energy solutions. The Company owns and operates a nitrogen fertilizer plant in East Dubuque, Illinois, that manufactures and sells natural gas-based nitrogen fertilizer products within the corn-belt region in the United States. It is developing energy projects to produce certified synthetic fuels andelectric power from carbon-containing materials, such as biomass, waste and fossil resources. Its technologies can produce synthesis gas (syngas) from biomass and waste materials, and convert syngas from its own or other gasification technologies into complex hydrocarbons (the Rentech Process) that are then upgraded into fuels using refining technology that it licenses. In addition to developing projects using these technologies, it is pursuing the licensing of its technologies to developers of projects that are expected to produce fuels and/or power. | Post-IPO Equity / Apr 09, 2014 |
About Blackstone Credit
GSO Capital Partners is a privately owned hedge fund sponsor. The firm primarily provides its services to pooled investment vehicles, corporations, insurance companies, banks, pension funds, endowments, foundations, family offices, and fund of funds. It invests in the alternative investment markets of the United States. The firm primarily investsin of public and private securities employing multiple investment strategies. It focuses its investments on leveraged loans, distressed investments, special situations, capital structure arbitrage, mezzanine securities, and private equity.
Blackstone Credit Contacts
| Name | Phone | Socials | |
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Ashish Chhaparwal
Managing Director
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Bob Carroll
Managing Director and Head of Distressed Trading
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Dan Oneglia
Senior Managing Director and Co-Head of Distressed Investing
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Douglas I. Ostrover
Co-Founder
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Douglas I. Ostrover
Co-Founder
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FAQ
What does Douglas I. Ostrover invest in?
Douglas I. Ostrover invests primarily in Energy, Oil and Gas and Manufacturing startups, most often at Post-IPO Equity stage. Most of the 1 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Douglas I. Ostrover?
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When did Douglas I. Ostrover last invest?
The most recent investment recorded for Douglas I. Ostrover closed in Apr 2014. Shizune tracks 1 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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