Marathon’s Droshky Field is a four-well subsea development located in the Gulf of Mexico in Green Canyon Block 244 in approximately 2950 feet of water. Three intelligent wells and one conventional stacked well, completed in a total of ten frac-packed intervals, were required to drain the  multiple reservoir intervals encountered. The field was brought on production in July 2010, tied back to DOR’s Bullwinkle Platform. This presentation will review some of the challenges encountered in the completion design and implementation, including contingency operations. Among the issues faced were long completion intervals (up to 456’ gross), working with zinc bromide completion fluid throughout the six-month completion campaign, and extreme fluid loss rates (in excess of 500 BPH).