Jan A. Rask

Veritas DGC, Inc. provided integrated geophysical, geological and reservoir technologies to the petroleum industry worldwide. The firm produced 4D surveys to record fluid movement in the reservoir by repeating specific 3D surveys over time. The company was headquartered in Houston, Texas.

TODCO provides contract oil and gas drilling services. It operates drilling rigs that consists inland barge rigs, jackup rigs, submersible rigs, platform rig, and land rigs located in shallow and inland waters of the United States, Angola, Colombia, Mexico, Trinidad, and Venezuela. The firm also operates inland tugs, offshore tugs, crew boats, deck barges, shale barges, spud barges, and offshore barges. The company was founded in 1997 and is headquartered in Houston, TX.

Pride International, Inc. operates as an offshore drilling contractors. The firm provides contract drilling and related services to oil and gas companies. It offers services through the use of mobile offshore drilling rigs and rig management services on various rigs, including technical drilling assistance, personnel, repair and maintenance, and drilling operation management services. The company was founded in on June 24, 1988 and is headquartered in Houston, TX.

Part of Diamond Offshore Drilling, Inc., Arethusa Ltd. owns drilling rigs and provides drilling services. The company is based in Houston, TX. Arethusa was acquired by Diamond Offshore Drilling, Inc. on April 30, 1996 for $516.58 million.