fluctuati fluctuations, from the top of the well to the rock and sand through the natural oil reservoir far below. that green light at the static kill and so far, anderson, no signs of anything going wrong with it either. >> i should point out, tom, once again, we are reading tea leaves and waiting for press releases from bp because they have continued to refuse -- though they once said they would do it -- to have some real-time explanation of what's going on in the live picture. correct? >> reporter: exactly. we get periodic updates through press releases or a brief phone conference. that's about it. >> so we don't know -- we won't know for a while -- this ship is, what, pumping alot of barrels of fluid. is that what's going on? >> reporter: yes. that's what we know. we won't know if it's working for some time. it's pumping many barrels of heavy drilling fluid or mud, as they call it, down into the oil well about a mile under the