NSea Crude-Forties weakens as supply rises

* Forties offers under pressure, down to dated minus 30/35

* No Forties deals or bids reported in the window

LONDON, Nov 11 (Reuters) - North Sea Forties differentials
stayed under pressure on Wednesday, squeezed by an overhang of
November loading cargoes and new supply from the December
programmes, traders said.

FORTIES FOT-E

* Within the afternoon trading window, Shell again offered a
Nov. 20-22 cargo, now at dated BFOE minus 35 cents, down from
minus 30 cents on Tuesday; Shell also offered a Nov. 22-24 cargo
at dated BFOE minus 30 cents.

* ConocoPhillips offered a Forties for loading Nov. 26-28 at
dated BFOE minus 20 cents.

* No deals or bids in the window

* The second December loading Forties cargo, a
400,000-barrel parcel lifting Dec. 2-4 was kept by Vitol. The
first cargo, Shell equity due Dec. 1-3, was also kept by Vitol.

REFINING MARGINS <REF/MARGIN1>

* Complex refining margins for North Sea Brent in Rotterdam
were around $3.15 per barrel on Wednesday, up around 20 cents
from Tuesday, and in line with the average of the past five
days, according to Reuters models.

SWAPS

* Contracts for Differences (CFDs) were steady across the
curve and continuing to show backwardation for nearby physical
barrels (previous day in brackets) as follows:

16-20/11 Jan -105 (-103)

23-27/11 Jan -99 (-96)

30-04/12 Jan -85 (-83)

7-11/12 Jan -71 (-69)

14-18/12 Jan -57 (-55)

21-24/12 Jan -43 (-41)

ICE BRENT MARKER

* The ICE set its afternoon one-minute marker for December
Brent at $77.71, up very slightly from $77.66 on Tuesday.

(Reporting by Christopher Johnson; editing by William Hardy)