UPDATE 3-Statoil curbs output at Troll field
* Work to start Thurs; curb "shorter than a week"
* Unclear how much output will be curtailed
* UK gas prices jump to three-week high
* Output at Oseberg South, East fields resume
(Recasts first two paras with crude oil context)
By Gwladys Fouche
OSLO, Jan 27 (Reuters) - Production at the giant Troll oil and gas field will be curbed from Thursday for repairs that would last less than a week, while two other North Sea fields have resumed production, operator Statoil (STL.OL: Quote) said.
The news on Troll, the largest gas reservoir off Norway, came as UK day-ahead gas prices surged to three-week highs, after flows of Norwegian gas dived, and North Sea crude oil reached its biggest premium over U.S. oil for two years. [ID:nL3E7CR07M] Continued...