It's "Venture" (ex "Wilanna"), built at Uddevallavarvet in Sweden in 1985 and currently owned by Transpetrol Services of Belgium (www.transpetrol.com).
She is one of only two vessels with this destinctive design, the other one being the former "Toluma" of Wilh. Wilhelmsen which is now named "Loyalty" and also owned by Transpetrol.
Not easy to find pictures of vessels with such anonymous names using Google, but managed to find one of sistership "Loyalty" here: http://www.onthewater.nl/loyalty.htm
Mats E. Sæther