This feedstock in the containment ponds thing has gotten much thought over the last year. It seems to me that if there has been any activity at all, especially regarding resale of cleaned slop oil to shell, there would have been some press released to that effect but there has not.
I've often considered that these containment ponds are little more than holes dug into the ground. With that accomplished, despite the focus of the business plan to clean the waste that would be contained in those holes in the ground and resell it, the ulterior plan might be to collect from those who would dump their waste into those holes with no intention of cleaning or separating, pocketing the revenues from those collections as administrative expenses and salaries and/or bonuses and filing bankruptcy with no funding left to continue operations, leaving the slop in the holes and walking away with any environmentally induced fines left to the stockholders. I'm waiting for the other shoe to drop.