NSea Crude-Forties firms on tight supplies

* Forties offered at dated plus 25 cents
* Tighter supplies, lower freight rates support

LONDON, July 10 (Reuters) - North Sea Forties crude oil
differentials rose on Friday, supported by tightening of
supplies, improved refining margins and lower frieght rates.

FORTIES FOT-E

* Shell offered a July 24-26 Forties cargo to dated flat
before withdrawing. Chevron also withdrew an offer for July
28-30 Forties at dated plus 25 cents.

These offers were sharply higher than recent deals. Shell
sold a July 23-25 Forties to Statoil at September minus $1.35 on
Thursday, traders said. The Forties deal was equal to roughly
dated minus 45 cents.

Maintenance work will more than halve the volume of Forties
loaded in August, according to the loading programme. [NSEA/O]

NORWEGIAN GRADES

* Statoil was not thought to have been offering cargoes on
Friday.

REFINING MARGINS <REF/MARGIN1>

* Complex margins for Brent stood at plus $4.66 per barrel,
Reuters refining models show. That is up from the average of the
last five days of $3.02.

SWAPS

* CFDs were assessed at the following levels at 1530 GMT

13-17/7 Sep -86

20-24/7 Sep -81

27-31/7 Sep -75

3-7/8 Sep -67

10-14/8 Sep -56

17-21/8 Sep -45

ICE MINUTE MARKER

Flat prices fell further. The ICE set its August Brent
afternoon marker at $59.64, down from $60.24 on Thursday.
(Reporting by Joe Brock; Editing by Keiron Henderson)