The selection of the types and weights of drilling fluids and provisions for controlling fluid temperatures, blowout preventers and other surface control equipment and materials, casing and cementing programs, etc., to be used shall be based on sound engineering principles and shall take into account apparent geothermal gradients, depths, and pressures of the various formations to be penetrated and other pertinent geologic and engineering data and information about the area.
Haw. Code R. § 13-183-57