At least I'm pretty sure it's a grease stain. Not sure where it came from but my best guess is my son's bike. It's on a pair of cotton khakik pants. I've soaked it in Oxy Clean and washed it several times. I've even put Dawn detergent on it and washed it. Most of it has come out and the remaining bit has faded. They have not gone through the dryer. Is there something else I could try?
