Oct 6 (Reuters) - The discount on Western Canada Select

to North American benchmark West Texas Intermediate futures

narrowed on Monday.

WCS for November delivery in Hardisty, Alberta, settled at

$10.75 a barrel under the U.S. benchmark WTI, according to

brokerage CalRock, compared to Friday's close of $11.

* 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.

* Analysts say the WCS discount will likely continue to

trade

close to its current range, or even tighten this autumn. Midwest

refining runs are at record highs for this time of year, helping

to keep the WCS discount seasonally narrow.

* Oil prices gained about 1% on Monday after the OPEC+

production

increase planned for November was more modest than expected,

tempering some concerns about supply additions, though a soft

outlook for demand is likely to cap near-term gains.