TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractThe Troika Subsea development project has produced the top four hydrocarbon producing wells in the Gulf of Mexico -three wells each delivering greater than 40,000 STBOE/D sustained rate. This paper will give the reader an overview of the completion designs and installations, but equally important, what lessons we learned to apply on our next deepwater high rate producers.The Troika field is located in 2700' of water and was a fast paced development project which was delivered (from discovery to first oil production) in only 39 months -a deepwater industry record! This subsea development consists of five subsea wells clustered around a production manifold and tied-back 14 miles to the host platform. Many well design aspects, various technologies, and timing issues had to converge quickly for the success of this project.Completion practices will be reviewed and resulting productivity performances will be charted. The following areas will be discussed:Well performance history • Perforating practices • Fluid loss control practices • Sand control operations • Tubing installation • Flowback operations • Subsea operations • Batch operations • Personnel and training