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Corporate lineage

Deep Rock Oil Corporation

Now part of Anadarko Petroleum.

8
Recorded transactions
Acquired
Current status
1
Predecessor on record

Lineage

The chain on record.

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

Quick answers

About Deep Rock Oil Corporation.

Who acquired Deep Rock Oil Corporation?
Deep Rock Oil Corporation was acquired into Anadarko Petroleum, which is the current successor entity in the chain tracked by the OGLandman M&A directory.
Is Deep Rock Oil Corporation still an independent company?
No. Deep Rock Oil Corporation is no longer independent; it is now part of Anadarko Petroleum.
What companies did Deep Rock Oil Corporation acquire?
Deep Rock Oil Corporation acquired Shaffer Oil & Refining Company. 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.