Oct 3 (Reuters) - The discount on Western Canada Select

to North American benchmark West Texas Intermediate futures

was unchanged on Friday.

WCS for November delivery in Hardisty, Alberta, settled at

$11 a barrel under the U.S. benchmark WTI, according to

brokerage CalRock, flat on Thursday's close.

* Canadian pipeline operator Enbridge's ( ENB ) Mainline

system -

which transports oil from Alberta to various markets in Canada

and the U.S. - is not at apportionment in October. Apportionment

is an industry term for the rationing that occurs when demand

for pipeline space exceeds capacity.

* The increase in seasonal capacity this month on the

Mainline is

due to less planned maintenance on the system, an Enbridge ( ENB )

spokesperson said.

* The WCS discount will likely continue to trade close to

its

current range, or even tighten this autumn, said RBN Energy

analyst Martin King. Midwest refining runs are at record highs

for this time of year, helping to keep the WCS discount

seasonally narrow, he said.

* Demand was strong in September for Canadian crude loaded

off

the Trans Mountain pipeline, which carries Alberta oil to the

B.C. coast for export overseas, a trend that is expected to

continue in October.

* Oil prices settled higher on Friday but posted a weekly

loss of

8.1% after news of potential increases to OPEC+ supply.