SINGAPORE, Oct 18 (Reuters) - South Korea's SK Energy has sold November-loading 10 ppm sulphur gasoil cargoes at a premium of $1-2 a barrel to Singapore quotes, several sources with knowledge of the matter said on Tuesday.

The deals were done at higher premiums than a week earlier when the company sold a separate cargo at a discount of around $1.5 a barrel.

One cargo of 300,000 barrels was for first-half November loading, and one cargo of 300,000 barrels was for second-half November loading, the sources said.

The tender closed on Oct. 17, they added. (Reporting by Trixie Yap; Editing by Mark Potter)