Not so, my friends. In fact, you can have extremely oily, completely clear skin. And plenty of people with very dry skin break out all the time. A pimple might have a ton of oil in it, but that's just because it's clogged, not because the oil actually created the problem. Acne is actually caused by bacteria (which are, in turn, often multiplying as a result of skin changes caused by the release of hormones), which is why antibiotics can often clear it up.