I had my gall bladder taken out about ten years ago. I went through exactly the same thing, I had diarrehea for 6 years, with an oily appearence. And i found myself running to the bathroom like it was an emergency. I never found any cuase. The gall bladder produces an enzyme that aids in digestion. The only thing that helped at all was eating smaller meals and absolutely not eating any pork.
Have yourself checked for fat malabsorption. An orange oily discharge may often be the result of a malabsoptive issue.