Skip to content
HomePermit TrackerCounty RecordsM&A DirectoryNRA CalculatorBlog
Today’s permits

Corporate lineage

Union Oil Co. of California

Now part of Chevron.

11
Recorded transactions
Acquired
Current status
4
Predecessors on record

Lineage

The chain on record.

Each arrow is a recorded acquisition or merger. Open any company to trace its own chain.

Predecessors · acquired by Union Oil Co. of California

  1. Ohio Cities Gas CompanyUnion Oil Company of California
  2. Pure Oil CompanyUnion Oil Co. of California
  3. UnicalUnion Oil Co. of California
  4. Union Cal Inc.Union Oil Co. of California

Union Oil Co. of California · acquired by

  1. Union Oil Co. of CaliforniaChevron Texaco Corp.
  2. Union Oil Co. of CaliforniaUnocal Corporation
  3. Union Oil of CaliforniaUnion Oil Co. of California

Successor chain

  1. Chevron Texaco Corp.Chevron Corporation
  2. UNOCAL CorporationChevron Corporation
  3. UNOCAL Corporation (San Juan and Permian Assets)Pure Energy Resources, Inc.
  4. UnocalChevron

Quick answers

About Union Oil Co. of California.

Who acquired Union Oil Co. of California?
Union Oil Co. of California was acquired into Chevron, which is the current successor entity in the chain tracked by the OGLandman M&A directory.
Is Union Oil Co. of California still an independent company?
No. Union Oil Co. of California is no longer independent; it is now part of Chevron.
What companies did Union Oil Co. of California acquire?
Union Oil Co. of California acquired Ohio Cities Gas Company, Pure Oil Company, Unical and other entities. Full list available in the lineage chain below.

From lineage to the paper

the successor is one answer. the deed is the other.

Now find where the paper is filed.

Knowing which entity a mineral interest rolls up to today is half the work. The county records directory tells you where that county’s deed and lease index lives, how far back it runs, and whether you can pull images online or have to go in person.

County records directoryWhat they’re filing now