Shell Western Supply and Trading beat out the other two bidders, Trafigura [TRAFGF.UL] and Mitsubishi, by offering to pay a premium of 71 cents per barrel above the reference price for West Texas Intermediate crude.

Petroecuador expects the deal to bring in some $950 million. The Andean country produces some 545,000 barrels per day of crude.

(Reporting by Alexandra Valencia; Writing by Luc Cohen)