Halliburton has confirmed its continued support of, and cooperation with, the ongoing investigations into the Deepwater Horizon drilling rig incident in the Gulf of Mexico earlier this month. Halliburton extends its heartfelt sympathy to the families, friends and our industry colleagues of the 11 people lost and those injured in the tragedy.

As one of several service providers on the rig, Halliburton can confirm the following: • Halliburton performed a variety of services on the rig, including cementing, and had four employees stationed on the rig at the time of the accident. Halliburton's employees returned to shore safely, due, in part, to the brave rescue efforts by the U.S. Coast Guard and other organizations. • Halliburton had completed the cementing of the final production casing string in accordance with the well design approximately 20 hours prior to the incident. The cement slurry design was consistent with that utilized in other similar applications. • In accordance with accepted industry practice approved by our customers, tests demonstrating the integrity of the production casing string were completed. •At the time of the incident, well operations had not yet reached the point requiring the placement of the final cement plug which would enable the planned temporary abandonment of the well, consistent with normal oilfield practice. • We are assisting with planning and engineering support for a wide range of options designed to secure the well, including a potential relief well. Halliburton continues to assist in efforts to identify the factors that may have lead up to the disaster, but it is premature and irresponsible to speculate on any specific causal issues.

Halliburton originated oilfield cementing and leads the world in effective, efficient delivery of zonal isolation and engineering for the life of the well, conducting thousands of successful well cementing jobs each year. The company views safety as critical to its success and is committed to continuously improve performance.

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