Vas Deferens Organization is an American experimental band and a production team founded in Dallas in 1994 by Matt Castille in association with Christopher Moock, Jason Cohen, Barbara Cohen, Craig Carlton, Breck Outland, and Reagen Boone. In 1995 Eric Lumbleau joined the group. From 1995 through 2007, VDO was a loose collective centered on Castille and Lumbleau and ever-changing collaborators. Christopher Moock reunited with Castille and Lumbleau in 2007. Their musical output is extremely diverse, ranging from minimalism, musique concrete, audio montage, raga and ethnic music to krautrock.