And1 - UK and Norwegian production data includes many fields from the Atlantic margin and in the case of Norway, also the Barents Sea. So it depends if you want NW Europe or specifically the North Sea.

Dear EM, I got your point. Let me rephrase.
"Oil production from NW Europe". It will be useful for discussions with peak oil illiterates to show that the whole NW region of Europe as such is in decline.
Kind regards/And1