NSea Crude-Forties steady on strong demand

* Shell buys Forties from Total at dated plus 20 cents

* Shell holds 10 of 12 Forties available

* Statoil sells July 9 Oseberg, offered at dated plus $1.00

LONDON, June 19 (Reuters) - Forties crude oil differentials
were steady on Friday as unremitting demand from Shell was
offset by slightly weaker refining margins.

FORTIES FOT-E

* In the trading window, Shell bought Total's July 5-7
Forties cargo at dated BFOE plus 20 cents, the same price paid
by BP for a Forties cargo from Total on Thursday.

* Shell withdrew a bid for July 3-8 Forties at August cash
minus 80 cents, which is around dated plus 10-15 cents.

Shell was reported to hold 10 of the 12 Forties cargoes
loading in the period July 1-10 with BP holding the other two.

* BP offered a July 11-13 cargo down to dated plus 20 cents
on Friday.

NORWEGIAN GRADES

* Norwegian state-controlled producer StatoilHydro sold an
Oseberg cargo for July 9 loading, traders said. This was offered
at dated plus $1.00 on Thursday.

Statoil offered five crude cargoes on Friday, all for
loading in the first half of July, at steady asking prices from
Thursday (premiums over dated BFOE)

(Thursday's levels in brackets):

- Oseberg July 12 at +1.00 (+$1.00)

- Oseberg July 15 at +1.10 (New Offer)

- Gullfaks July 10 at +1.45 (+$1.45)

- Gullfaks July 12 at +1.50 (+$1.50)

- Aasgard July 10 at +0.85 (New Offer)

REFINING MARGINS

* Complex margins for processing Brent in Rotterdam weakened
to around $1.06, down from an average of $1.74 over the last
five days.

Topping refineries had improved recently as outright crude
prices have dipped and light product prices have increased.
However, simple refining margins fell to $3.05 on Friday, down
from an average of $4.02 for the last 5 days. <REF/MARGIN1>

SWAPS

* CFDs were assessed at the following levels at 1530 GMT
(Thursday's levels in brackets):

- 22-26/6 Aug -0.90 (-0.95)

- 29-03/7 Aug -0.91 (-0.98)

- 6-10/7 Aug -0.86 (-0.90)

- 13-17/7 Aug -0.74 (-0.78)

- 20-24/7 Aug -0.62 (-0.62)

- 27-31/7 Aug -0.45 (-0.45)

ICE MINUTE MARKER

The ICE set its August Brent afternoon marker at $71.44, up
from $71.06 a barrel on Thursday.
(Reporting by Joe Brock; editing by William Hardy)