Damien Blackwater

Damien Blackwater (ダミエン・ブラックウォーター Damien Burakkuwōtā) is a high-ranking commander of R.O.G.U.E. with a bounty of 225,000,000. He is the user of an unnamed Devil Fruit that allows him to manipulate and transform into petroleum.

He is a prominent member of the Blackwater Family.

Trivia

 * Damien's ability to turn into petroleum is a pun on his name, literally "black water."