LONDON, June 12 (Reuters) -Light sweet crudes, such as those on offer from West African countries, are losing out to competition from similar U.S. crude streams in Europe, a trader on Wednesday said.

* Competition has been stiff to place or sell lighter crude, but sellers are hoping for a stronger market going into late July loading to capitalise on the summer driving season, traders have said.

* Nigerian Qua Iboe, for instance, was offered at between dated Brent plus $2.50 and $2.80 a barrel for late July loading, the trader said. Qua offers were heard to be under dated Brent plus $1 earlier this week.

* Angolan crude sales have stagnated too, the trader added, with roughly ten July cargoes still on offer days ahead of the country's August programme emerging.

Reporting by Natalie Grover in London; Editing by Mark Potter

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