Oil and gas production in UK waters 'on the rise'
Industry body Oil and Gas UK said provisional figures showed production for the first six months of the year could be up 2.5% on the same period last year.
The Golden Eaqle field, which started producing in November, is thought to have played apart.
Increased efficiency from existing assets is also being highlighted.
Deirdre Michie, chief executive of Oil and Gas UK, said: "It's still early days, but initial indications suggest that production could increase this year for the first time in 15 years.
"Clearly the oil price - which has more than halved since this time last year -continues to really challenge the industry.
"However, this positive news can indeed be attributed to the effort and investment industry has put into improving the integrity and performance of assets."
Analysisby Douglas Fraser, BBC Scotland business and economy editor
The rise in oil and gas output - of about 40,000 barrels per day - is not, perhaps,what you would expect when the price has been falling and the industry has been slashing at costs and investment.
It reflects less downtime for maintenance, and the industry points to its efficiency measures working.
Butit mainly reflects previous years of investment. More than £30bn in the pastfew years has secured a second wind for the North Sea and new projects west of Shetland.
And with output at around two-thirds of its peak level at the turn of the century, only one field can make a big difference. The Golden Eagle field, 40 miles north-east of Aberdeen and operated by Chinese-owned Nexen, can pump up to 70,000 barrels per day and only started production last November.
It has been forecast that output will remain at a slightly higher level for the rest of this decade, before returning to long-term decline as fields deplete.
Does this mean a rise in off shore tax revenue? No. With 3% more oil and 2.5% moregas, revenue may be slightly more than the low forecasts, but as tax is basedon profit rather than production, and taxable profits are reduced by the lowoil price and by investment allowances, the tax take is still going to be along way down on recent years.The global downturn in oil industry investment this year can be expected to have an effect later this decade. Without replacement supplies for depleting fields, we could see a constraint on supply, which can be expected lead to more price volatility to the upside.