Offshore drilling is a mechanical process where a wellbore is drilled below the seabed. It is typically carried out in order to explore for and subsequently extract petroleum that lies in rock formations beneath the seabed. Most commonly, the term is used to describe drilling activities on the continental shelf,. .
Around 1891, the first submerged oil wells were drilled from platforms built on piles in the fresh waters of the in . The wells were developed by small local. .
Notable offshore fields include:• the • the (offshore , , , and )• (in the and , part of the Ventura Basin) .
Offshore oil production involves environmental risks, most notably from oil tankers or pipelines transporting oil from the platform to onshore facilities, and from leaks and accidents on the platform (e.g. and .
• 17Apr2009 DC Appellate Decision stopping offshore Alaska Oil Leases.• .
Offshore drilling is usually done from platforms generically known as mobile offshore drilling units (MODU), which can be of one of several. .
Offshore oil and gas production is more challenging than land-based installations due to the remote and harsher environment. Much of the innovation in the offshore petroleum. .
• • • • • •
[pdf] In the early 1960s, Brewster-Bartle, an onshore drilling company, filed . In 1964, Don McMahon acquired Brewster-Bartle from its bank creditors and formed Diamond M Drilling Company, named after Diamond. .
In 1989, Diamond's predecessor bought 6 drilling rigs from the predecessor of Kaneb Management. Some of Kaneb's employees continued to work for Diamond after the transaction and then sued Diamond for personal inj.
[pdf] HRG Group, Inc., formerly Harbinger Group Inc. and Zapata Corporation, was a based in , having originated from an company started by a group including future U.S. president. .
The company traced its origins to Zapata Petroleum Corporation, founded in 1953 by future U.S. President , along with his business partners John Overbey, , , and Thomas J.. .
Zapata sought to acquire a controlling interest in the in 1969, but was outbid by 's AMK Corp. Robert Gow's father, Ralph Gow, was on United Fruit's board of directors. In the 1970. .
By 1994, the company had come under Glazer's control, after a . Glazer became chairman of Zapata, replacing Ronald Lassiter, and in 1995 , son of Malcolm, was named CEO and president o.
[pdf] 
