Highland Chieftains are the heads of large branches of the Clan. They wear, along with the plant badge of the clan, 2 eagle feathers. Chieftains have their own coat of arms, and may have their own crest (as opposed to other armigerous Clansman, who usually display the crest of their chief in a strap and buckle.) Although they are subordinate to the Clan Chief, they usually have full control over their branch.
Clan Oliphant has currently 3 Chieftains.

Laurence Kington Blair Oliphant of (Ardblair and) Gask, head of the Gask Branch

Richard Oliphant of Condie [now of That Ilk], head of the Condie Branch

John Philip Oliphant of Rossie, head of the Rossie Branch