1 ▁February ▁ 2 0 0 7 , ▁Nu on ▁and ▁another ▁Dutch ▁energy ▁utility ▁Ess ent ▁announced ▁their ▁intention ▁to ▁merge . ▁On ▁ 7 ▁September ▁ 2 0 0 7 , ▁Nu on ▁and ▁Ess ent ▁announced ▁that ▁the ▁mer ger ▁was ▁can ce led ▁because ▁no ▁agreement ▁could ▁be ▁reached ▁on ▁the ▁exchange ▁ratio . ▁ ▁According ▁to ▁the ▁Independent ▁Network ▁Management ▁Act ▁of ▁ 2 0 0 6 . ▁the ▁electric ity ▁distribution ▁operations ▁were ▁separated ▁into ▁a ▁separate ▁company ▁under ▁the ▁name ▁Li ander ▁in ▁November ▁ 2 0 0 8 , ▁and ▁in ▁June ▁ 2 0 0 9 ▁Li ander ▁was ▁un bund led ▁from ▁Nu on . ▁Cor respond ingly , ▁Nu on ▁adopted ▁a ▁new ▁name ▁N . V . ▁Nu on ▁Energy . ▁ ▁In ▁ 2 0 0 6 , ▁Nu on ▁in ▁the ▁partners hip ▁with ▁Royal ▁Dutch ▁Sh ell ▁built ▁No ord ze e W ind ▁( E g mond ▁aan ▁Ze e ) ▁off sh ore ▁wind ▁farm . ▁In ▁ 2 0 0 8 , ▁Nu on ▁bought ▁st akes ▁in ▁ 3 5   N orth ▁Sea ▁gas ▁fields ▁from ▁Con oco Ph ill ips . ▁In ▁ 2 0 1 1 , ▁the ▁N ort ▁Sea ▁expl oration ▁and ▁production ▁operations ▁were ▁sold ▁to ▁Tul low ▁O il . ▁ ▁On ▁ 1 ▁July ▁ 2 0 0 9 , ▁V atten fall ▁acquired ▁a ▁ 4 9 % ▁st ake ▁in ▁Nu on ▁and ▁took