Barrels Pirates

The Barrels Pirates were a pirate crew led by Diez Barrels.

History
The crew's members first appeared on Minion Island, where their captain Barrels made a deal with the Marines over the Ope Ope no Mi, but were then intruded by Donquixote Rosinante who stole the devil fruit.

Later, the remaining pirates are killed by Doflamingo's Parasite which caused the pirates to kill each other before they were looted by the rest of the invading Donquixote Pirates. The only survivor is Dory, who has since later formed his own crew.

Crew Strength
The crew possessed enough strength to somehow acquire the Ope Ope no Mi, but not wishing to use its power, they intended to sell it for 5,000,000,000. They weren't strong enough to overcome Doflamingo and his Birdcage, but some years later, one of the members, Dory started his own pirate crew and became a supernova.

Trivia

 * The captain, Diez Barrels' first name means "ten" in Spanish, otherwise written as "X", and Dory is later known as X Drake. It is unknown if this is a theme amongst the crew, or a connection between the two.