Rosemore is a holding company based in Baltimore, United States, founded in 1931. Verified contact details, AUM data, and investment preferences on FindLPs.
Rosemore, Inc. is a privately-held corporation headquartered in Baltimore, Maryland, with operating subsidiaries based in Houston, Texas. The primary focus of business operations today is oil and gas exploration, production, and transportation via its Tema Oil and Gas Company and Gateway Gathering and Marketing Company subsidiaries. In the past, Rosemore, Inc. also had a presence in oil refining and marketing via its Crown Central LLC subsidiary. The company also manages a diversified portfolio of investments. Rosemore, Inc. traces its roots back to 1931 when the original founders of the American Oil Company (AMOCO) formed a corporation to consolidate, expand and diversify their business activities.
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LP firm data compiled from public regulatory filings (SEC Form ADV, FCA, AIFMD disclosures), company websites and press releases, LinkedIn public profiles, and verified outbound email testing. AUM figures reflect self-reported values from filings and may lag by 1–2 fiscal quarters; bands are normalized in USD. We do not publish personal residential information; firms or individuals may request removal at /contact. Methodology & sources · Updated July 2026.