ROTTERDAM, The Netherlands, May 18, 2011 /PRNewswire/ —

– Largest Independent Energy Supplier of Western Europe in the Making

Energy suppliers North Sea Group and Argos Oil are discussing a merger.
If the talks are successful, this autumn will see the creation of the largest
independent player on the North-west European market in, with more than 850
employees, a combined tank storage capacity of over 1.5 million m3 and annual
turnover of approximately EUR 10 billion. The announcement was made today by
Ben Vree, CEO of NSG and Peter Goedvolk, CEO of Argos.

NSG and Argos are strong in midstream and downstream activities (storage
and transfer, blending and trading of oil products, bunkering of seagoing and
inland vessels, distribution and sales of oil products and biofuels, ‘from
producer to consumer’). The new company will be active throughout Western
Europe; in the Netherlands, Belgium, Luxembourg, Germany, France and
Switzerland. Outside Europe, the envisaged combined organisation will be
represented in Brazil, Singapore and China, among others.

Ben Vree: “After the recent strategic reorientation, NSG has brought its
core activities and future growth ambitions into sharper focus. It wants to
become an integrated provider of logistic services in the energy field.
Beside storage, transfer and distribution, these services include trading and
bunkering activities for seagoing and inland ships. Sustainability also has a
high priority at NSG. Merging with Argos will enable us to realise all our
ambitions better and more quickly and will give us a platform for further
growth.”

Peter Goedvolk: “Both our ambitions and our operations fit in closely
with NSG’s. We have been working for some time on expanding our operations in
Western Europe and on increasing our storage activities, and are focusing on
sustainable energy.

We believe that, in the rapidly-consolidating energy market, joining
forces with NSG is an important step in the right direction towards realising
our growth plans. We hope to be able to conclude the merger talks in the
fourth quarter of 2011, so that we will become a fully integrated company
with a clear vision of the future.”

The next few months the plans for integration and realising further
synergies are being worked out.

Because of a difference of opinion about the long-term growth strategy of
NSG, the Van der Sluijs family has decided to sell its share in NSG to the
other shareholders, Reggeborgh, Atlas Invest and Romo Holding. With this
transaction, these shareholders realise a further increase of their holdings
in the energy sector.

In line with its strategic focus, NSG has decided to dispose of its
inland shipping activities Interstream Barging (ISB). NSG will sell 70% of
the shares in ISB’s inland shipping activities to the Van der Sluijs family
before the intended merger with Argos. NSG will retain a 30% strategic
minority interest in ISB in order to guarantee the availability of the fleet.

About North Sea Group

NSG is a major player in the West European downstream oil market. It
combines storage and distribution with the international trade in and selling
of mineral oils and biofuels. It is also active in Asia and South America,
where it is striving for the further expansion of its position in the
world-wide oil market. Safety, sustainability and the environment have high
priority at NSG.

About Argos Oil

Argos Oil was set up by CEO Peter Goedvolk in 1984 and is one of the
fastest-growing oil and energy companies in the Benelux. Its divisions in the
Netherlands, Belgium, Luxembourg, France and Germany are active in all
aspects of the oil and fuel business. Energy needs and the mix of energies
satisfying them, in which there is increasing emphasis on the environment,
are constantly changing. Argos responds to this with flexible working methods
and a broad product portfolio.

SOURCE North Sea Group and Argos Oil