2006 Ford Escape -Likely cause of this leak?

oil leak bottom front left

Without being able to see it, nobody can give you anything other than a guess–which might, or might not, be correct. My guess is that the oil pan gasket is leaking.

From afar, we also have no idea about the rate of oil leakage, so I really hope that you have been pulling the dipstick and checking the oil level on a regular basis.

Post pictures of the leak if you can see it.