Occidental Petroleum Corporation (NYSE:OXY) is seeking a buyer to take majority control of Western Midstream Partners LP (NYSE:WES), the pipeline operator that it's poised to inherit through its takeover of Anadarko Petroleum Corporation (NYSE:APC) , according to people familiar with the matter. Occidental is working with a financial adviser to solicit offers for half of Anadarko's interest in Western Midstream and Western Midstream's general partner, or management entity, said the people, who asked to not be identified because the matter isn't public. The stakes could draw interest from Oneok Inc. (NSE:OKE), Enterprise Products Partners LP (NYSE:EPD) and Energy Transfer LP (NYSE:ET), one of the people said.

No decision has been made and Occidental could opt to not proceed with a sale, they said. Representatives for Occidental, Anadarko and Enterprise Products declined to comment. Representatives for Oneok and Energy Transfer didn't respond to requests for comment.