Levingston Launches The Ed Holt, First Of Two Jackups For Noble Drilling

Levingston Shipbuilding Com- pany, Orange, Texas, recently launched the first of two jackup drilling rigs for Noble Drilling Corporation of Ardmore, Okla.

Noble Drilling, one of the lead- ing domestic drilling contracting firms, formed in 1921, is a wholly owned subsidiary of Noble Affiliates, Inc. It owns seven platform rigs, three shallow-water mobile rigs, three inland barge rigs, and 34 land rigs.

Named the Ed Holt, the overall dimensions of the triangularshaped rig are 200 feet by 186 feet by 23 feet. The 414-foot-long four-chord square-truss legs allow the vessel to drill in water depths up to 300 feet to a maximum well depth of 25,000 feet.

Approximate cost of this rig is $37 million.

Design criteria of the cantilevered unit make it capable of operating under the harshest weather conditions. This selfelevating platform will be able to withstand winds of up to 109 knots and seas of 50 feet. Accommodations will be provided for a crew of 54.

Maritime Reporter Magazine, page 38, Nov 1981

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Maritime Reporter

First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.