ENSCO International Incorporated, based in Dallas, Texas, is one of the world's leading offshore drilling contractors, operating 56 offshore drilling rigs: 43 jackup rigs, seven barge rigs, five platform rigs, and one semisubmersible rig. The company provides its drilling services on a "day rate" contract basis, eschewing risk-based contracts that might provide great profits. ENSCO operates primarily in the Gulf of Mexico with 22 of its jackup rigs as well as its five platform rigs and lone semisubmersible rig. Of the company's remaining 21 jackup rigs, seven are operated in the North Sea, 12 in the Asia Pacific area, one offshore in West Africa, and one offshore Trinidad and Tobago. Six of the company's seven barge rigs are located in Venezuela, the other in Indonesia. Until 2003 ENSCO operated a 27-vessel transportation fleet, which management elected to sell in order to focus exclusively on its contract drilling business.
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