UK GAS-Prices firm on restocking, BBL exports

June 10 (Reuters) - British wholesale gas prices firmed
again on Thursday on continued restocking demand and exports to
the continent, which offset rising Norwegian supply.

* The within-day contract was up 0.40 pence at
69.00
pence per therm by 0930 GMT.

* The day-ahead contract was up 0.50 pence at
68.75
p/therm.

* The UK system was almost 18 million cubic metres (mcm)
under-supplied, with demand forecast around 143 mcm/day and
supply around 125 mcm/day, National Grid data showed.

* The system shortness was driven by restocking of medium
range
storage (MRS) and a drop of 10 mcm/day in sendout of liquefied
natural gas, analyst Xun Peng at Refinitiv said.

* "Active BBL exports to the Continent together with solid
MRS
injection demand might support the price today," the analyst
added.

* The BBL pipeline was exporting 14 mcm/day on Thursday.

* MRS injections were at 29 mcm, helping to replenish low
inventories of 320 mcm, compared with 1,000 mcm a year ago, Peng
said.

* This offset higher exports from Norway, where full
shutdowns at
gas field Troll and processing plant Kollsnes ended.

* "The downside might come from soft gas for power demand,
as
strong renewables are expected on (the day-ahead)," Peng said.

* Refinitiv lowered its gas for power demand for Friday by 7
mcm
to 21 mcm/day.

* Peak wind generation is forecast at 9.3 gigawatts (GW)
today and
9.4 GW on Friday, out of total metered capacity of almost 20 GW,
Elexon data showed.

* Gas for delivery in July rose by 0.55 pence
to
69.25 p/therm.

* The Dutch July contract at the TTF hub was
0.32
euro higher at 28.30 euros per megawatt hour.

* The benchmark Dec-21 EU carbon contract was 0.38
lower
at 53.13 euros a tonne.

* The UK Dec-21 carbon contract rose 0.14 pounds
to
47.65 pounds per tonne.
(Reporting by Nora Buli; editing by Emelia Sithole-Matarise)