Venezolaanse bemoeienis met Colmbiaanse olie

On a patch of barren savannah in eastern Colombia, a settlement called Oasis has sprung to life in five years. Hundreds of oil workers and truck drivers relax on a February evening in some 40 hotels, bars, eateries and brothels made mostly of corrugated metal sheets.

On a nearby dirt road, tanker trucks form a line stretching 4 kilometers, waiting to fill up with heavy crude from the Rubiales field -- a hub of Colombia’s oil boom, Bloomberg Markets magazine will report in its July issue.