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Evaluation of characteristic values of geotechnical parameters (used for oil well design) is associated with uncertainties inherent to the geological processes that change soil strata. Statistical analysis of soil data allows one to deal rationally with these uncertainties. This work addresses some normative recommendations and literature models for statistical characterization of undrained shear strength and submerged unit weight in offshore soils, providing more information to conductor casing design. Three methodologies were selected for the analysis. The NORSOK G‐001 standard recommends using mean values computed conservatively. Lacasse et al. propose that the characteristic value should be the mean value minus one-half of a standard deviation of the parameter under analysis. DNV‐RP‐C207 suggests different methodologies for dependent and independent soil variables, though both methods of …