Energy production increased 6.3% on the year in data adjusted for the number of working days and seasonal factors, INS said. Output in the manufacturing sector rose 6.2% in 2011 compared with the previous year, while mining output was 4.8%.
In December alone, adjusted industrial production was unchanged from a month earlier, but was up 1.4% from the same month of 2010.
In unadjusted data, Romanian industrial production rose 5.6% on the year in 2011.
Unadjusted industrial production in December fell 16.9% on the month, and was down 2.3% on the year.