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Around 8:52 p.m. on April 20, about an hour after the second negative
test, Donald Vidrine (who was on the rig) called Mark Hafle (who was at BP’s
Houston offices) to talk about whether to test the surface plug using a pressure
test or a weight test. During the conversation, Vidrine also talked to Hafle about
the negative tests that the rig crew had just conducted. Vidrine told Hafle that
the crew observed zero pressure on the kill line, but there was pressure on the
drill pipe. Hafle responded that a successful negative test could not result in
pressure on the drill pipe and zero pressure on the kill line. He told Vidrine to
consider whether pressure was trapped in the line or perhaps a valve was not
properly lined up. Vidrine reported to Hafle that he was fully satisfied that the
240
rig crew had performed a successful negative test.

At the time of the conversation with Vidrine, Hafle was in his office,
where he could access real‐time data at any time through a system called Insite
Anywhere. Indeed, Hafle logged on to the Insite Anywhere database at 1:25:39
p.m. on April 20 and accessed Macondo well information via at 4:13:58 p.m. 241
The file he accessed was “Cementing XY Time Log”, and he remained logged
into the system (Insite Anywhere) until 5:27:35 p.m. (Refer to Figure 9 – Insite
242
Anywhere Access Log for April 20, 2010). However, Hafle chose not to access
available real‐time data to help interpret the negative test results. Instead, Hafle
apparently accepted Vidrine’s explanation without reviewing data from the well
on the anomalous negative tests. The Panel found evidence that Hafle remained
at the office on April 20 until about 10:00 p.m. CST, which was just after the
discussion with Vidrine. After the blowout, he sent an email to himself detailing
his activities that day.
243

240 BP‐HZN‐BLY00125475.
241 Insite Anywhere is a database owned by Halliburton, accessible by BP personnel.
242 HAL 50546.
243
BP‐HZN‐MBI00327757.

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