Why aren't valid offers of clean-up assistance being accepted for the BP oil spill?

From an article on Pegasus News:

The banker has 12 skimming vessels specifically designed to remove surface oil from the Gulf that are immediately available and at least 13 more that can be made available over the next few weeks.

Click here for article while it lasts.

I mean seriously! Isn't some valid help better than no help? Is BP wanting to be so secretive that they would much rather continue the toxicity pumping into the Gulf versus help stop or siphon it off? And technically, the Gulf of Mexico (at least the part being affected I guess) is "owned" by the U.S.A. so the U.S. government should be forcing BP to accept all measures of quality clean-up assistance.

I mean they went to Kevin Costner and James Cameron. Why the hell not companies that actually have things that can assists NOW!?

Anyway...