Who acquired Mobil?: Mobil was acquired into ExxonMobil Corp., which is the current successor entity in the chain tracked by the OGLandman M&A directory.
Is Mobil still an independent company?: No. Mobil is no longer independent; it is now part of ExxonMobil Corp..

Tracing a mineral owner's company?

Scout CRM carries corporate lineage in owner records so you know which successor entity a mineral interest rolls up to today.