NUR-SULTAN (Reuters) - Energy company Royal Dutch Shell has pulled out of the Khazar offshore project in Kazakhstan, while a consortium of which Shell is a member has given up on Kalamkas, another small offshore block nearby, Kazakhstan said on Monday.Khazar is located next to the giant Kashagan field, which the consortium is developing. Kazakhstan had hoped Shell would agree with its Kashagan partners on how to tap Khazar jointly.But Kazakh authorities said the consortium, which also includes..