(Adds comment from Aera)
HOUSTON, June 23 (Reuters) - Aera Energy, which is owned byaffiliates of Shell and Exxon Mobil, said onThursday it was not the owner of some 700 barrels of oil thatspilled in Ventura, California on Thursday.
A local official had earlier said Aera owned the oil. It,along with other companies, operates oil fields near thepipeline.
The pipeline's owner, Crimson Pipeline, has takenresponsibility for the spill but has not said whose crude it wastransporting.
(Reporting by Liz Hampton; Editing by Terry Wade and ChizuNomiyama)