U.S. light oil exports double in May, mostly to Europe

* U.S. condensate exports rise to about 120,000 bpd * Bulk of U.S. oil heads to Europe By Catherine Ngai and Florence Tan NEW YORK, June 29 (Reuters) - U.S. exports of ultra-light crude, also known as condensate, have doubled since the start of the year, with most shipments headed to Europe, according to traders familiar with the deals and data from an energy consultant. The United States exported between 120,000 and 140,000 barrels per day (bpd) of condensate last month, accord