UPDATE 1-Shell eyes return to growth as reserves jump

* Targets output of 3.5 mln boepd in 2012

* Reserve replacement rate of 288 pct in 2009

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LONDON, March 16 (Reuters) - Royal Dutch Shell Plc (RDSa.L) said it was planning a return to robust growth in oil and gas production after years of decline, as it unveiled strong reserves additions that would underpin longer term growth. Europe's largest oil company by market value said it is targeting output of 3.5 million barrels of oil equivalent per day (boepd) in 2012, up from 3.15 million in 2009 -- equivalent to an annual growth rate of 3.5 percent.

The Hague-based company has seen its production fall each year for the last seven years.

Shell also predicted growth beyond 2012, underpinned by a new focus on exploration.

The company said it added 3.4 billion barrels in reserves in 2009 -- equivalent to almost three times the amount of oil and gas it pumped. (Reporting by Tom Bergin and Lorraine Turner; Editing by David Holmes)