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Offshore Drilling Discharge StandardIn 2003, we finalized our International Offshore Drilling Discharge standard, which prohibits the discharge of oil-based mud and cuttings. Where nonoil-based muds are used, the standard requires drilling projects to complete a risk-based assessment that incorporates a number of site-specific factors, including water depth, currents and proximity to sensitive habitat, to minimize the impacts of our operations on the environment. It also requires that all offshore drilling rigs using nonwater-based drilling fluids be equipped with advanced cuttings-cleaning systems.
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